www.innokria.com

KickEggLite is in APP Store

2012-01-10T16:53:00.000-08:00

Kick Egg LITE IS A FREE IPHONE GAME ..ENJOY

Local notifcication at regular interval

2011-11-11T01:22:00.001-08:00

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Add the navigation controller's view to the window and display.
    [NSThread detachNewThreadSelector:@selector(scheduleLocalNotifications) toTarget:self withObject:nil];
    [window addSubview:navigationController.view];
    [window makeKeyAndVisible];

    return YES;
}
-(void) scheduleLocalNotifications{
    for (int i = 0; i < 60; i++)
    {
        UILocalNotification *localNotif = [[UILocalNotification alloc] init];
        if (localNotif == nil)
            return;
        NSDate *sleepDate = [[NSDate date] dateByAddingTimeInterval:i * 60];
        NSLog(@"Sleepdate is: %@", sleepDate);

        localNotif.fireDate = sleepDate;    

        NSLog(@"fireDate is %@",localNotif.fireDate);
        localNotif.timeZone = [NSTimeZone defaultTimeZone];
        localNotif.alertBody = [NSString stringWithFormat:NSLocalizedString(@"This is local notification %i"), i];

        localNotif.alertAction = NSLocalizedString(@"View Details", nil);
        localNotif.soundName = UILocalNotificationDefaultSoundName;
        localNotif.applicationIconBadgeNumber = 1;

        [[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
        NSLog(@"scheduledLocalNotifications are %@", [[UIApplication sharedApplication] scheduledLocalNotifications]);
        [localNotif release];

    }
}

Uploading XML to server via PHP

2011-10-10T00:18:00.001-07:00

XCODE CODE
_____________________

            // #######################################################

            // Uploading to .net SERVER #######################################################



            // #######################################################






            //


            NSString *urlString = @"http://www.innokria.com/dotnet.php";
            NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
            [request setURL:[NSURL URLWithString:urlString]];
            [request setHTTPMethod:@"POST"];

            NSString *boundary = [NSString stringWithString:@"0xLhTaLbOkNdArZ"];
            NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
            [request addValue:contentType forHTTPHeaderField: @"Content-Type"];

            //Reading the file
            NSString *filePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"readme.xml"];
            NSData *myData = [NSData dataWithContentsOfFile:Read];
             NSLog(@"file exist at %@",myData);
            NSMutableData *body = [NSMutableData data];

            [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
            [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"dotnet\"; filename=\"test.xml\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
            [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
            [body appendData:myData];
            [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

            [request setHTTPBody:body];

            NSError *returnError = nil;
            NSHTTPURLResponse *returnResponse = nil;

            NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&returnResponse error:&returnError];






##################################

in php , make a empty folder called dotnets and upload this php page

_______________dotnet.php

$uploaddir = './dotnets/';
$file = basename($_FILES['dotnet']['name']);
$uploadfile = $uploaddir . $file;

if (move_uploaded_file($_FILES['dotnet']['tmp_name'], $uploadfile)) {
        echo "http://www.innokria.com/dotnet/{$file}";
}
?>

sending email in obj-c

2011-09-30T22:15:00.000-07:00

in.h

import MessageUI/MessageUI.h

delegate MFMailComposeViewControllerDelegate

- (void)openInAppEmail:(NSArray*)recipients
           mailSubject:(NSString*)mailSubject
              mailBody:(NSString*)mailBody
               isHtml:(BOOL)isHtml;
##########################################
in .m

- (IBAction)mail:(id)sender {




        // SMS *   start = [[SMS alloc] initWithNibName:@"SMS" bundle:[NSBundle mainBundle]];
        //start.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
        // start.modalPresentationStyle = UIModalPresentationFormSheet;
        // [self presentModalViewController:start animated:YES];
    email=@"hi@hi.com";

    [self openInAppEmail:[NSArray arrayWithObject:email] mailSubject:@"" mailBody:@"" isHtml:YES];





}

- (void)openInAppEmail:(NSArray*)recipients
           mailSubject:(NSString*)mailSubject
            mailBody:(NSString*)mailBody
                isHtml:(BOOL)isHtml
{
    MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] init];
    controller.mailComposeDelegate = self;
    [controller setToRecipients:recipients];
    [controller setSubject:mailSubject];
    [controller setMessageBody:mailBody isHTML:isHtml];
    [self presentModalViewController:controller animated:YES];
}

- (void)mailComposeController:(MFMailComposeViewController*)controller
        didFinishWithResult:(MFMailComposeResult)result
                        error:(NSError*)error {
    [self dismissModalViewControllerAnimated:YES];
}

marker in core -Plot

2011-09-29T23:38:00.001-07:00

// OHLC plot
    CPTMutableLineStyle *whiteLineStyle = [CPTMutableLineStyle lineStyle];
    whiteLineStyle.lineColor = [CPTColor whiteColor];
    whiteLineStyle.lineWidth = 1.0f;
    CPTTradingRangePlot *ohlcPlot = [[[CPTTradingRangePlot alloc] initWithFrame:graph.bounds] autorelease];
    ohlcPlot.identifier = @"OHLC";
    ohlcPlot.lineStyle = whiteLineStyle;
    CPTMutableTextStyle *whiteTextStyle = [CPTMutableTextStyle textStyle];
    whiteTextStyle.color = [CPTColor whiteColor];
    whiteTextStyle.fontSize = 48.0;
    ohlcPlot.labelTextStyle = whiteTextStyle;
    ohlcPlot.labelOffset = 5.0;
    ohlcPlot.stickLength = 2.0f;
    ohlcPlot.dataSource = self;
    ohlcPlot.plotStyle = CPTTradingRangePlotStyleOHLC;
    [graph addPlot:ohlcPlot];

NSSCANNER take out String and numbers

2011-09-04T21:45:00.001-07:00

NSString *str = @" hello i am emp 1313 object of string class 123";

NSScanner *scanner = [NSScanner scannerWithString:str];

// set it to skip non-numeric characters

[scanner setCharactersToBeSkipped:

[[NSCharacterSet decimalDigitCharacterSet]

 invertedSet]];

int i;

while ([scanner scanInt:&i])

{

    NSLog(@"Found int: %d",i);

}

// reset the scanner to skip numeric characters

[scanner setScanLocation:0];

[scanner setCharactersToBeSkipped:

[NSCharacterSet decimalDigitCharacterSet]];

NSString *resultString;

while ([scanner scanUpToCharactersFromSet:

[NSCharacterSet decimalDigitCharacterSet]

 intoString:&resultString]) {

    NSLog(@"Found string: %@",resultString);

}

save and update data / Read and Write

2011-09-02T00:24:00.000-07:00

-(NSString *)readFile:(NSString *)fileName

{

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName];

    NSFileManager *fileManager=[NSFileManager defaultManager];

    if ([fileManager fileExistsAtPath:appFile])

        {

        NSError *error= NULL;

        id resultData=[NSString stringWithContentsOfFile:appFile encoding:NSUTF8StringEncoding error:&error];

        if (error == NULL)

            {

            return resultData;

            }

        }

    return NULL;

}

-(void)writeFile:(NSString *)fileName dataArray:(NSArray *)data

{

    NSMutableString *dataString=[NSMutableString stringWithString:@""];

    for (int i=0; i<[data count]; i++)

        {

        if (i == [data count]-1)

            {

            [(NSMutableString *)dataString appendFormat:@"%@",[data objectAtIndex:i]];

            }

        else

            {

            [(NSMutableString *)dataString appendFormat:@"%@\n",[data objectAtIndex:i]];

            }

        }

     [self writeFile:fileName data:dataString];

}

-(void)writeFile:(NSString *)fileName data:(id)data

{

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName];

    NSError *error=NULL;

    NSFileManager *fileManager=[NSFileManager defaultManager];

    if ([fileManager fileExistsAtPath:appFile])

        {

        NSString *fileString=[NSString stringWithContentsOfFile:appFile encoding:NSUTF8StringEncoding error:&error];

        data=[data stringByAppendingFormat:@"\n%@",fileString];

        [data writeToFile:appFile atomically:YES encoding:NSUTF8StringEncoding error:&error];

        }

    else

        {

        [data writeToFile:appFile atomically:YES encoding:NSUTF8StringEncoding error:&error];

        }

    if (error != NULL)

        {

            //Check Error Here. if any.

        }

}

- (IBAction)save:(id)sender {
        //To Write the File.

    NSArray *array=[NSArray arrayWithObjects:usernameField.text,passwordField.text, nil];

    [self writeFile:@"arra.txt" dataArray:array];


        //Read the File

    NSString *result=[self readFile:@"arra.txt"];

    NSArray *outputArray=[result componentsSeparatedByString:@"\n"];

    for (int i=0; i<[outputArray count]; i++)

        {

        NSLog(@"the output=%@ index=%i",[outputArray objectAtIndex:i], i);

        }
    }

Dyanamic adding and removing buttons

2011-08-25T15:53:00.001-07:00

#### button Adding

- (IBAction)whisky:(id)sender {

if(j<21) {

CGRect rect = CGRectMake(100,20,70,20);
lbl1= [[[UILabel alloc] initWithFrame:rect] autorelease];
NSString *intString = [NSString stringWithFormat:@"%d", j-10];
[lbl1 setText:intString]; lbl1.tag=99; [self.view addSubview:lbl1];
button3 = [UIButton buttonWithType:UIButtonTypeCustom];
[button3 addTarget:self action:@selector(ratingAction2:)forControlEvents:UIControlEventTouchUpInside];
[button3 setBackgroundImage:[UIImage imageNamed:@"scanbutton1.png"] forState:UIControlStateNormal]; button3.tag = j;
button3.backgroundColor = [UIColor blueColor];
button3.frame = CGRectMake(120, width1, 35, 35);
[self.view addSubview:button3]; width1 = width1 -38; j++;
}
}

############### button delete based on tag ###########

- (IBAction)delWhis:(id)sender { if(j>1)
{
j--;

int f;
f=j;

[[self.view viewWithTag:f] removeFromSuperview];

//int b = button3.tag/10;

{
NSLog(@" whisky ration is %d",f);
width1 = width1 +38;

}

}

}

Dynamic button and Event on them ( Retro)

2011-08-25T00:08:00.001-07:00

- (IBAction)Can:(id)sender {

i++;

UIButton *button2;
//view did load

// for( i= 1;i<=5;i++)

{
button2 = [UIButton buttonWithType:UIButtonTypeCustom];
[button2 addTarget:self action:@selector(ratingAction:)forControlEvents:UIControlEventTouchUpInside];
[button2 setBackgroundImage:[UIImage imageNamed:@"scanbutton1.png"] forState:UIControlStateNormal];
button2.tag = i;
button2.backgroundColor = [UIColor clearColor];
button2.frame = CGRectMake(20, width, 35, 35);
[self.view addSubview:button2];
width = width -38;
}

NSLog(@" i am can ");
// [self dismissModalViewControllerAnimated:YES];

}

-(void)ratingAction:(id*)sender
{

if ([sender isKindOfClass:[UIButton class]]) {

UIButton *temp=(UIButton*)sender;

if ([temp tag]==1 || [temp tag]==3 || [temp tag]==6 || [temp tag]==7 ) {

[temp setBackgroundColor:[UIColor redColor]];

}
}
}

Android Installation

2011-08-23T22:32:00.000-07:00

Download Andriod SDK and Eclispse

2) Launch Eclipse

3) go to help -> install new software

4) enter this url

‪http : //dl-ssl.google.com/Android/eclipse/‬

5)and configure

6) then create a new project (Others) and select google api and then launch first app

MD5 in Xcode

2011-08-15T02:01:00.000-07:00

import --> #import CommonCrypto/CommonDigest.h
then make a Class Utility

in .h

#import Foundation/Foundation.h

#import CommonCrypto/CommonDigest.h
@interface Utilities : NSObject {

}

//generates md5 hash from a string
+ (NSString *) returnMD5Hash:(NSString*)concat;

@end
##############################################################
in .m

#import "Utilities.h"
@implementation Utilities

//generate md5 hash from string
+ (NSString *) returnMD5Hash:(NSString*)concat {
const char *concat_str = [concat UTF8String];
unsigned char result[CC_MD5_DIGEST_LENGTH];
CC_MD5(concat_str, strlen(concat_str), result);
NSMutableString *hash = [NSMutableString string];
for (int i = 0; i < 16; i++)
[hash appendFormat:@"%02X", result[i]];
return [hash lowercaseString];

}

@end

#######################

in the main Class

NSString *myMD5String = [Utilities returnMD5Hash:@"test"];
NSLog(@" myMD5String ----------------------- %@",myMD5String);

And Its Done , Happy Coding :)

Uninstall Xcode

2011-07-26T23:07:00.001-07:00

sudo /Developer/Library/uninstall-devtools –mode=all

Core data Basics -Part 1

2011-07-21T20:12:00.000-07:00

Welcome to the world of core data
________________________________________

step 1) import core data framework

step 2) create a coredata object -> Test.xcdatamodeld
create entity -> Class
Create Attributes-> Name , Descrioptin;

step3) in AppDelegate class add these

NSManagedObjectContext *managedObjectContext_;
NSManagedObjectModel *managedObjectModel_;
NSPersistentStoreCoordinator *persistentStoreCoordinator_;

@property (nonatomic, retain, readonly) NSManagedObjectContext *managedObjectContext;
@property (nonatomic, retain, readonly) NSManagedObjectModel *managedObjectModel;
@property (nonatomic, retain, readonly) NSPersistentStoreCoordinator *persistentStoreCoordinator;

- (NSURL *)applicationDocumentsDirectory;
- (void)saveContext;

###################################################

______________ in App delegate.m____________________________

#pragma mark -
#pragma mark Core Data stack

/**
Returns the managed object context for the application.
If the context doesn't already exist, it is created and bound to the persistent store coordinator for the application.
*/
- (NSManagedObjectContext *)managedObjectContext {

if (managedObjectContext_ != nil) {
return managedObjectContext_;
}

NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator];
if (coordinator != nil) {
managedObjectContext_ = [[NSManagedObjectContext alloc] init];
[managedObjectContext_ setPersistentStoreCoordinator:coordinator];
}
return managedObjectContext_;
}

/**
Returns the managed object model for the application.
If the model doesn't already exist, it is created from the application's model.
*/
- (NSManagedObjectModel *)managedObjectModel {

if (managedObjectModel_ != nil) {
return managedObjectModel_;
}
NSString *modelPath = [[NSBundle mainBundle] pathForResource:@"Test" ofType:@"momd"];
NSURL *modelURL = [NSURL fileURLWithPath:modelPath];
managedObjectModel_ = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];
return managedObjectModel_;
}

/**
Returns the persistent store coordinator for the application.
If the coordinator doesn't already exist, it is created and the application's store added to it.
*/
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator {

if (persistentStoreCoordinator_ != nil) {
return persistentStoreCoordinator_;
}

NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@"Test.sqlite"];

NSError *error = nil;
persistentStoreCoordinator_ = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];
if (![persistentStoreCoordinator_ addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:nil error:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}

return persistentStoreCoordinator_;
}

#pragma mark -
#pragma mark Application's Documents directory

/**
Returns the URL to the application's Documents directory.
*/
- (NSURL *)applicationDocumentsDirectory {
return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
}

#################################

_______________ in VeiwControll.h___

step5) create text fields to enter user values
UITextField* nameTextField;
UITextField* descriptionTextField;
UITextView* ingredientsTextView;
}
@property (nonatomic,retain) IBOutlet UITextField* nameTextField;
@property (nonatomic,retain) IBOutlet UITextField* descriptionTextField;
@property (nonatomic,retain) IBOutlet UITextView* ingredientsTextView;

##################

_______________in VC.m_____________

step6) to save the data in Sqlite

- (IBAction)save:(id)sender {

CoreData_rahul_saveDataAppDelegate* delegate = [[UIApplication sharedApplication] delegate];

NSManagedObjectContext* managedObjectContext = delegate.managedObjectContext;

NSManagedObject *nam;
nam=[NSEntityDescription insertNewObjectForEntityForName:@"Class" inManagedObjectContext:managedObjectContext];

[nam setValue:nameTextField.text forKey:@"Name"];
[nam setValue:descriptionTextField.text forKey:@"Desciption"];

NSError* error;
[managedObjectContext save:&error];

[self fetchRecords]; // to show data in console
}

step 7) to display data in console we use Fetch Request

- (void)fetchRecords {

CoreData_rahul_saveDataAppDelegate* delegate = [[UIApplication sharedApplication] delegate];

NSManagedObjectContext* managedObjectContext = delegate.managedObjectContext;

NSFetchRequest *request = [[NSFetchRequest alloc] init];

[request setEntity:[NSEntityDescription entityForName:@"Class" inManagedObjectContext:managedObjectContext]];

NSError *error = nil;
NSArray *events = [managedObjectContext executeFetchRequest:request error:&error];
NSAssert2(events != nil && error == nil, @"Error fetching events: %@\n%@", [error localizedDescription], [error userInfo]);
//You were leaking your request here
[request release], request = nil;
//The following line is redundant. You are leaking an array here
//NSMutableArray *namesArray = [[NSMutableArray alloc]init];
NSArray *namesArray = [events valueForKey:@"Name"];

NSLog(@"array us %@",namesArray);

}

Thanks

App Shopper: iDraws (Lifestyle)

2011-07-19T06:00:00.000-07:00

App Shopper: iDraws (Lifestyle)

retain and Copy diff

2011-07-11T01:46:00.001-07:00

In a general setting, retaining an object will increase its retain count by one. This will help keep the object in memory and prevent it from being blown away. What this means is that if you only hold a retained version of it, you share that copy with whomever passed it to you.

Copying an object, however you do it, should create another object with duplicate values. Think of this as a clone. You do NOT share the clone with whomever passed it to you.

Convert Char to NsString and vice versa

2011-06-29T19:54:00.000-07:00

char to NsString

char *a = "Testing";
NSString *aa = [NSString stringWithCString: (const char *)a encoding: NSASCIIStringEncoding];NSLog(@"%@", aa);

#############################################

NSString to c char

char * c_string = [someNSString UTF8String];

@selectors in obj-c

2011-06-22T23:46:00.001-07:00

elector in Objective C
In short, Selector can either be a name of method or a message to an object when used in the source code. And SEL is the complied form of a Selector.

- (void) fooNoInputs {
NSLog(@"Does selector test");
}

- (void) fooOneInput:(NSString*) first {

// NSLog(@"Does selector test");
NSLog(@"my slectore Logs %@", first);
}

- (void)viewDidLoad
{

//
//##############################################################################

// SELCETOR test

//##############################################################################

[self performSelector:@selector(fooNoInputs)];

[self performSelector:@selector(fooOneInput:) withObject:@"firstc"];

############## difference between

[self playButtonSound]; &

[self performSelector:@selector(playButtonSound)];

Both to the same thing, but [self playButtonSound]; is definitely the normal way to invoke a method in Objective-C. However, using performSelector: allows you to call a method that is only determined at runtime.

@property in objc

2011-06-22T18:56:00.001-07:00

Property attributes are special keywords to tell compiler how to generate the getters and setters. Here you specify two property attributes: nonatomic, which tells the compiler not to worry about multithreading, and retain, which tells the compiler to retain the passed-in variable before setting the instance variable.

In other situations, you might want to use the “assign” property attribute instead of retain, which tells the compiler NOT to retain the passed-in variable. Or perhaps the “copy” property attribute, which makes a copy of the passed-in variable before setting.

Categories in obj-c

2011-06-19T21:47:00.001-07:00

// Base Class
@interface ClassA : NSObject
- (NSString *) myMethod;
@end
@implementation ClassA
- (NSString*) myMethod { return @"A"; }
@end

//Category
@interface ClassA (CategoryB)
- (NSString *) myMethod;
@end
@implementation ClassA (CategoryB)
- (NSString*) myMethod { return @"B"; }
@end

Calling the method "myMethod" after including the category nets the result "B".

Php + XML package

2011-06-03T20:52:00.000-07:00

//ob_start();

if ( stristr($_SERVER["HTTP_ACCEPT"],"application/xhtml+xml") )
{ header("Content-type: application/xhtml+xml;charset=utf-8"); }
else { header("Content-type: text/xml;charset=utf-8"); }
echo "\n";

// Write Code here

ob_get_contents();
//?>

function with diff parameter

2011-05-29T20:27:00.000-07:00

Objective-C program with multiple parameter

Objective-C enables programmer to use method with multiple parameter. These parameter can be of same type or of different type.
This is a sample program that shows sum of three numbers as output.

MyClass.h

#import
@interface MyClass:NSObject{

}

// declare method for more than one parameter
-(int) sum: (int) a andb: (int) b andc:(int)c;
@end

MyClass.m

#import
#import"MyClass.h"

@implementation MyClass
-(int) sum: (int) a andb: (int) b andc:(int)c;{
return a+b+c;
}
@end

MyClass.m

#import
#import"MyClass.m"
int main(){
MyClass *class = [[MyClass alloc]init];

printf("Sum is : %d",[class sum : 5 andb : 6 andc:10]);
[class release];
return ;
}

source rose india

Difference betwen protocol and category

2011-05-23T23:11:00.000-07:00

A protocol is the same thing as an interface in Java: it's essentially a contract that says, "Any class that implements this protocol will also implement these methods."

A category, on the other hand, just binds methods to a class. For example, in Cocoa, I can create a category for NSObject that will allow me to add methods to the NSObject class (and, of course, all subclasses), even though I don't really have access to NSObject.

To summarize: a protocol specifies what methods a class will implement; a category adds methods to an existing class.

The proper use of each, then, should be clear: Use protocols to declare a set of methods that a class must implement, and use categories to add methods to an existing class.

Delete Row in UITableView

2011-05-23T19:43:00.001-07:00

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{ NSLog(@"matrix is her%@",appDelegate.favDetail);
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source

[appDelegate.favDetail removeObjectAtIndex: indexPath.row];
[tableView beginUpdates];
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject: indexPath] withRowAnimation:UITableViewRowAnimationFade];
[tableView endUpdates];
}

NSDate and time seperate

2011-05-18T23:24:00.001-07:00

NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"yyyy-MM-dd"];

NSDateFormatter *timeFormat = [[NSDateFormatter alloc] init];
[timeFormat setDateFormat:@"HH:mm:ss"];

NSDate *now = [[NSDate alloc] init];

NSString *theDate = [dateFormat stringFromDate:now];
NSString *theTime = [timeFormat stringFromDate:now];

NSLog(@"\n"

"theDate: |%@| \n"
"theTime: |%@| \n"
, theDate, theTime);

Adding LibXML and OpenSSL to Xcode

2011-05-18T02:45:00.000-07:00

header search path-> $(SDKROOT)/usr/include/libxml2
2) include any folder like iPhoneSimulator4.2.sdk and add this name

make car c++

2011-05-05T20:12:00.003-07:00

{ // car body
b2PolygonDef poly1, poly2;

// bottom half
poly1.vertexCount = 5;
poly1.vertices[4].Set(-2.2f,-0.74f);
poly1.vertices[3].Set(-2.2f,0);
poly1.vertices[2].Set(1.0f,0);
poly1.vertices[1].Set(2.2f,-0.2f);
poly1.vertices[0].Set(2.2f,-0.74f);
poly1.filter.groupIndex = -1;

poly1.density = 20.0f;
poly1.friction = 0.68f;
poly1.filter.groupIndex = -1;

// top half
poly2.vertexCount = 4;
poly2.vertices[3].Set(-1.7f,0);
poly2.vertices[2].Set(-1.3f,0.7f);
poly2.vertices[1].Set(0.5f,0.74f);
poly2.vertices[0].Set(1.0f,0);
poly2.filter.groupIndex = -1;

poly2.density = 5.0f;
poly2.friction = 0.68f;
poly2.filter.groupIndex = -1;

b2BodyDef bd;
bd.position.Set(-35.0f, 5.8f);

m_vehicle = m_world->CreateBody(&bd);
m_vehicle->CreateShape(&poly1);
m_vehicle->CreateShape(&poly2);
m_vehicle->SetMassFromShapes();
}

{ // vehicle wheels
b2CircleDef circ;
circ.density = 40.0f;
circ.radius = 0.38608f;
circ.friction = 0.8f;
circ.filter.groupIndex = -1;

b2BodyDef bd;
bd.allowSleep = false;
bd.position.Set(-33.8f, 5.0f);

m_rightWheel = m_world->CreateBody(&bd);
m_rightWheel->CreateShape(&circ);
m_rightWheel->SetMassFromShapes();

bd.position.Set(-36.2f, 5.0f);
m_leftWheel = m_world->CreateBody(&bd);
m_leftWheel->CreateShape(&circ);
m_leftWheel->SetMassFromShapes();
}

{ // join wheels to chassis
b2Vec2 anchor;
b2RevoluteJointDef jd;
jd.Initialize(m_vehicle, m_leftWheel, m_leftWheel->GetWorldCenter());
jd.collideConnected = false;
jd.enableMotor = true;
jd.maxMotorTorque = 10.0f;
jd.motorSpeed = 0.0f;
m_leftJoint = (b2RevoluteJoint*)m_world->CreateJoint(&jd);

jd.Initialize(m_vehicle, m_rightWheel, m_rightWheel->GetWorldCenter());
jd.collideConnected = false;
m_rightJoint = (b2RevoluteJoint*)m_world->CreateJoint(&jd);
}

{ // ground
b2PolygonDef box;
box.SetAsBox(11.5f, 0.5f);
box.friction = 0.62f;
#pragma mark plank height
b2BodyDef bd;
bd.position.Set(-26.0f, 4.8f);

b2Body* ground = m_world->CreateBody(&bd);
ground->CreateShape(&box);
}

make bridge C++

2011-05-05T20:12:00.001-07:00

#pragma mark bridge
b2Body* ground = NULL;
{
b2PolygonDef sd;
sd.SetAsBox(0.2f, 0.1f);

b2BodyDef bd;
bd.position.Set(0.0f, 0.0f);
ground = m_world->CreateBody(&bd);
ground->CreateShape(&sd);
}

{
b2PolygonDef sd;
sd.SetAsBox(0.5f, 0.125f);
sd.density = 20.0f;
sd.friction = 0.2f;

b2RevoluteJointDef jd;
const int32 numPlanks = 30;

b2Body* prevBody = ground;
for (int32 i = 0; i < numPlanks; ++i)
{
b2BodyDef bd;
bd.position.Set(-14.5f + 1.0f * i, 5.0f);
b2Body* body = m_world->CreateBody(&bd);
body->CreateShape(&sd);
body->SetMassFromShapes();

b2Vec2 anchor(-15.0f + 1.0f * i, 5.0f);
jd.Initialize(prevBody, body, anchor);
m_world->CreateJoint(&jd);

prevBody = body;
}

b2Vec2 anchor(-15.0f + 1.0f * numPlanks, 5.0f);
jd.Initialize(prevBody, ground, anchor);
m_world->CreateJoint(&jd);
}

Basics Pointer

2011-05-03T01:04:00.001-07:00

if a is a struct use a.b

if a is a pointer to a struct use a->b

if a is an object pointer and b is a ivar use a->b

if a is an object pointer and b is a property use a

Struct in ObjC

2011-05-02T19:35:00.001-07:00

// in interface
struct fruit {
int a;
};
// in implementation
int main()
{
struct fruit apple;
apple.a = 1;

return 0;
}

UINavigation back pop View Controller

2011-04-05T18:55:00.000-07:00

-(void)goBack:(id)sender

{

[self.navigationController popViewControllerAnimated:YES];

//[self.navigationController popToRootViewControllerAnimated:YES];

}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {

#pragma mark back buttonw

UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0, 0, 55, 30);
[button setImage:[UIImage imageNamed:@"backButton.png"] forState:UIControlStateNormal];
[button addTarget:self action:@selector(goBack:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem* btBack = [[UIBarButtonItem alloc] initWithCustomView:button];
self.navigationItem.leftBarButtonItem = btBack;
}

set default zoom level in UIScrollview

2011-03-24T02:59:00.000-07:00

- (void)viewDidLoad {

imageView= [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"KK_Map-02.jpg"]];
//self.imageView = imageView;
//[tempImageView release];

[super viewDidLoad];
//aWw.delegate = self;
//[scrollView setUserInteractionEnabled:YES];
scrollView.contentSize = CGSizeMake(imageView.frame.size.width, imageView.frame.size.height);//imageView.frame.size.width*9.6, imageView.frame.size.height*0.9

//scrollView.contentOffset = CGPointMake(imageView.frame.size.width/4,
// imageView.frame.size.height/4);

//CGRect rect = CGRectMake(119, 42, 208, 166);

scrollView.maximumZoomScale = 4.0;
scrollView.minimumZoomScale = 0.33;
scrollView.clipsToBounds = YES;
scrollView.delegate = self;
scrollView.bouncesZoom=FALSE;

[scrollView addSubview:imageView];

float minimumScale = [scrollView frame].size.width / [imageView frame].size.width;
[scrollView setMinimumZoomScale:minimumScale];
[scrollView setZoomScale:minimumScale];

}

JS to Obj-c and Objc to JS

2011-03-14T23:41:00.000-07:00

search for text which you can to test against

- (BOOL)webView:(UIWebView *)localwebView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {

NSURL *url = [request URL];

NSString *path = [[request URL] path];

NSString *pathTrimmed = [path lastPathComponent];

NSLog(@"sfdf %@",url);

NSLog(@"path f %@",pathTrimmed);

if ([pathTrimmed isEqualToString:@"Reset"]) {

// Display alert
UIAlertView *alertb = [[UIAlertView alloc] initWithTitle:@"You want to Reset Data??" message:@"" delegate:self cancelButtonTitle:@"No" otherButtonTitles: @"YES",nil];
alertb.tag=3;
[alertb show];

[alertb release];
return NO;
}
return YES;

}

and then based on alert call JS Function defined in html page

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {

if(buttonIndex == 1) {

//NSLog(@" its done now uplaod data");
[localwebView stringByEvaluatingJavaScriptFromString:@"confirmation()"];
}
}

check inernet conection on iphone

2011-03-10T01:29:00.001-08:00

NSString *connected = [NSString stringWithContentsOfURL:[NSURL URLWithString:@"http://www.google.com"]];

//NSLog(@" SRRINF IS %@",connected);

wait(20);

if (connected == NULL) {
NSLog(@"Not connected");

UIAlertView *alertb = [[UIAlertView alloc] initWithTitle:@"Internet is down " message:@"Check your internet connection" delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil,nil];

[alertb show];

[alertb release];
} else {
NSLog(@"Connected - %@",connected);

ipad run

2011-03-08T23:26:00.001-08:00

inseret this ti info.plost

NSMainNibFile~ipad

http:// www . devx.com/wireless/Article/44472/1763/page/2

DEALING WITH NULL SQL DATABASE

2011-02-16T20:32:00.001-08:00

#pragma mark DEALING WITH NULL SQL DATABASE

char *currencyChars = (char *)sqlite3_column_text(compiledStatement, 3);

if (currencyChars !=NULL)
aFAQ.img = [NSString stringWithUTF8String: currencyChars];

Dynamic display of button from sql

2011-02-16T18:22:00.000-08:00

for (NSString *arrayString in appDelegate.saveTCellImg )
{

k++;
CGRect frame = CGRectMake(curXLoc, curYLoc, 60, 50);
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = frame;
UIImage *theImage = [UIImage imageWithData:[NSData dataWithContentsOfURL:[ NSURL URLWithString:arrayString]]];

NSLog(@" BUTTON INDEX IS = %d",k);

button.tag=k;//[arrayString intValue];
rowID=k;

[button setImage:theImage forState:UIControlStateNormal];
//[button setImage:[UIImage imageNamed:[appDelegate.saveTCellImg objectAtIndex:0]] forState:UIControlStateNormal];
[button setTitle:(NSString *)[appDelegate.a1 objectAtIndex:k] forState:(UIControlState)UIControlStateNormal];
[button addTarget:self action:@selector(buttonEvent: ) forControlEvents:UIControlEventTouchUpInside];

curXLoc +=60;// (kScrollObjWidth1);

if(curXLoc>=200)
{

curXLoc=20;
curYLoc+=150;
}

NSLog(@" WIDTH IS %d",curXLoc);
// NSLog(@" WIDTH IS %d",kScrollObjWidth1);

[self.view addSubview:button];

}

add custom font on iphone

2011-01-27T23:49:00.000-08:00

https://github.com/zynga/FontLabel

add button to UItableview cell

2011-01-23T17:40:00.000-08:00

myButton1 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
myButton1.frame = CGRectMake(0, 20, 80, 30); // position in the parent view and set the size of the button
[myButton1 setTitle:@"MAIL!" forState:UIControlStateNormal];
// add targets and actions

[myButton1 addTarget:self action:@selector(buttonClicked1:) forControlEvents:UIControlEventTouchUpInside];
// add to a view
//[self addSubview:myButton];
myButton1.tag=jk;//indexPath.row;
//[self.view addSubview:myButton];
[cell.contentView addSubview:myButton1];

/// ADDING METHOD TO THOS BUTTONS

- (IBAction)buttonWasPressed:(id)sender
{
NSIndexPath *indexPath =
[self.myTableView
indexPathForCell:(UITableViewCell *)[[sender superview] superview]];
NSUInteger row = indexPath.row;

// Do something with row index
}

color UI title sectionview

2011-01-18T21:16:00.000-08:00

- (CGFloat) tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
return 44.0;
}
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
// create the parent view that will hold header Label
UIView* customView = [[[UIView alloc] initWithFrame:CGRectMake(10.0, 0.0, 150.0, 44.0)]autorelease];

NSString *sectionName = nil;

switch(section)
{
case 0:

if(counter<=3)
NSLog(@"ok");

// create the buNSLog(@"ok");tton object
UILabel * headerLabel = [[[UILabel alloc] initWithFrame:CGRectZero]autorelease] ;
headerLabel.backgroundColor = [UIColor clearColor];
headerLabel.opaque = NO;
headerLabel.textColor = [UIColor whiteColor];
headerLabel.highlightedTextColor = [UIColor whiteColor];
headerLabel.font = [UIFont boldSystemFontOfSize:20];
headerLabel.frame = CGRectMake(10.0, 0.0, 300.0, 44.0);

// If you want to align the header text as centered
// headerLabel.frame = CGRectMake(150.0, 0.0, 300.0, 44.0);

headerLabel.text = @"Description"; // i.e. array element
[customView addSubview:headerLabel];

if(counter==7)

headerLabel.text = @""; // i.e. array element
[customView addSubview:headerLabel];

//sectionName = @"DES-";

break;

case 1:

Avoid shuffling of data in UITABLE Section view

2011-01-16T19:10:00.000-08:00

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

NSString *CellIdentifier=nil ;

NSMutableArray *Array= [[[NSMutableArray alloc] initWithObjects: @"One",@"Two", @"Three",@"Ad",@"Ae",@"Ah",@"Aj" ,nil]autorelease];

CellIdentifier = [Array objectAtIndex:indexPath.section];

///302-1021-9244-4658-1994-3384

UITableViewCell * cell = [tabelView dequeueReusableCellWithIdentifier:CellIdentifier];

//number++;
// NSLog(@" NUMBER IS %d",number);
// if (cell != nil)
//if(number==1);
{
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
// // Set up the cell

appDelegate = (DatabaseTestAppDelegate *)[[UIApplication sharedApplication] delegate];
switch(indexPath.section)
{
}

}

Load webview inside Table view

2011-01-06T01:04:00.001-08:00

CGRect bounds = CGRectMake(10, 90, 320, 180);//[[UIScreen mainScreen] applicationFrame];
UIWebView *localwebView = [[UIWebView alloc] initWithFrame: bounds ];
[self.view addSubview:localwebView];

NSString *path = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html"];
NSURL *url = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:url];

localwebView.scalesPageToFit = YES;
[localwebView loadRequest:request];

to check app running first time or not on iphone

2010-12-17T07:06:00.000-08:00

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
if (![prefs objectForKey:@"alert"]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"this is 1st time" message:@"Some description"
delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alert show];
[alert release];
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"alert"];
}
else {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@" this is 2nd time!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show]; [alert release];
NSLog(@" DEJA VU");

}

[[NSUserDefaults standardUserDefaults] synchronize];

IPhone GPS

2010-10-20T19:07:00.000-07:00

- (CLLocationManager *)locationManager {
NSLog(@"lattttttttiiiiiiiiiiiiiudeeeeeeeee");
if (locationManager != nil) {
return locationManager;
}

locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;

return locationManager;
}

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {

//[locationMeasurements addObject:newLocation];

NSLog(@"l89899898ee");

#pragma mark lat

NSString *lat = [[NSString alloc] initWithFormat:@"%0.3f", newLocation.coordinate.latitude];

// NSLog(@"1l89899898ee");

NSString *lonn = [[NSString alloc] initWithFormat:@"%0.3f", newLocation.coordinate.longitude];

//latitudeString =newLocation.coordinate.latitude;
//latitudeString=lat;
//NSLog(@"lat is %@", lat);
//self.myLatitude = latitudeString;
//[latitudeString release];
#pragma mark long

//NSLog(@"2l89899898ee");

NSUserDefaults *alat = [NSUserDefaults standardUserDefaults];
[alat setObject:lat forKey:@"Latitude"];
//NSLog(@"%@",latitudeString);

//NSLog(@"3l89899898ee");
NSUserDefaults *along = [NSUserDefaults standardUserDefaults];
[along setObject:lonn forKey:@"Longitude"];

//NSLog(@"lon fgfgfgfg is %@", lonn);
//longitudeString=newLocation.coordinate.longitude;
//longitudeString=lon;

//NSLog(@"4l89899898ee");

}

- (void)locationManager: (CLLocationManager *)manager didFailWithError: (NSError *)error
{
NSLog(@"Location Error: %@",error);
switch([error code])
{
case kCLErrorNetwork: // general, network-related error
{
NSLog(@"please check your network connection or that you are not in airplane mode");
}
break;
case kCLErrorDenied:{
NSLog(@"user has denied to use current Location");
}
break;
default:
{
NSLog(@"unknown network error");
}
break;
}
[manager stopUpdatingLocation];
}

- (void)starte {

NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

NSLog(@" thread stretr ");
[[self locationManager] startUpdatingLocation];

NSLog(@" main tgreas point is %@",latitudeString);

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];

// getting an NSString
NSString *Latu = [prefs stringForKey:@"Latitude"];
NSLog(@" new lati is %@",Latu);

NSUserDefaults *alongs = [NSUserDefaults standardUserDefaults];
NSString *Longu = [alongs stringForKey:@"Longitude"];

NSLog(@" new longu is %@",Longu);

#pragma mark APP iD

#pragma mark sysID
NSString *sysID=[[UIDevice currentDevice] uniqueIdentifier];
NSLog(@" ID IS %@",sysID);

NSString *ip=@"ip";
NSString* OS=@"3";

//NSLog(@"latitude is %@", myString );
//latitudeString=@"1.3";
//longitudeString=@"103.8";

NSString *AppID=[NSString stringWithFormat:@"%@|%@|%@|%@|%@",Latu,Longu,sysID,ip,OS];
NSLog(@" MY APPLE OD IS %@",AppID );

NSUserDefaults *aDD = [NSUserDefaults standardUserDefaults];
[aDD setObject:AppID forKey:@"AppID"];

///////////////////////////////////////////////////////////////////////

[pool drain];
[pool release];

}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

[[self locationManager] startUpdatingLocation];
[self performSelectorInBackground:@selector(starte) withObject:nil];
}

Flip navigation controller

2010-10-18T19:42:00.001-07:00

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration: 1];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.navigationController.view cache:YES];
[self.navigationController pushViewController:atab animated:YES];
//[self.navigationController pushViewController:myViewController animated:NO];
[UIView commitAnimations];

change navigation bar to black

2010-10-15T19:24:00.001-07:00

self.navigationController.navigationBar.barStyle = UIBarStyleBlack;

remove charcater from string

2010-10-14T01:38:00.001-07:00

lets say you have @"hello" now ir order to get ello you can do this
NSString *newStr = [myString substringWithRange:NSMakeRange(1, [myString length] - 1)];

AES encrypt and dec

2010-10-12T23:50:00.001-07:00

download file from
http:/\iphonedevelopment.blogspot.com/2009/02/strong-encryption-for-cocoa-cocoa-touch.html

and use them like this

NSString *passphrase = @"1234567812345678";
NSStringEncoding myEncoding = NSASCIIStringEncoding;

NSString *alphaStringPlain = @"hello";

NSData *alphaDataPlain = [alphaStringPlain dataUsingEncoding:myEncoding];

NSData *alphaDataCypher = [alphaDataPlain AESEncryptWithPassphrase:passphrase];
NSString *alphaStringCypher = [[NSString alloc] initWithData:alphaDataCypher encoding:myEncoding];

NSLog(alphaStringCypher); // encode

///////
NSData *zCypher = [alphaDataCypher AESDecryptWithPassphrase:passphrase];
NSString *Cypher = [[NSString alloc] initWithData:zCypher encoding:myEncoding];

//NSData *zCypher = [alphaStringCypher AESDecryptWithPassphrase:passphrase];

NSLog(@" hua kya decode %@",[Cypher dataUsingEncoding:NSUTF8StringEncoding]);// decode

deatil code
http:\/blog.objectgraph.com/index.php/2010/04/20/encrypting-decrypting-base64-encode-decode-in-iphone-objective-c/

JSON parser

2010-09-28T23:04:00.001-07:00

string
{ "name":{
"firstName": "John",
"lastName": "Smith",
"age": 25,
"address":
{
"streetAddress": "21 2nd Street",
"city": "New York",
"state": "NY",
"postalCode": "10021"
},
"phoneNumber":
[
{
"type": "home",
"number": "212 555-1234",
"home":"sdfsdfdsf"
},
{
"type": "fax",
"number": "646 555-4567",
"home":"6666"
}
{
"type": "sun",
"number": "646 555-4567",
"home":"lopppp"
}

]
}
}

//////////////////////// this is how we parse this JSON

- (void)viewDidLoad {
jsonArray= [[NSMutableArray alloc] init] ;
[super viewDidLoad];

responseData = [[NSMutableData data] retain];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://58.185.167.53/rahul/Json/Number.json"]];
[[NSURLConnection alloc] initWithRequest:request delegate:self];
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[responseData setLength:0];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responseData appendData:data];
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
label.text = [NSString stringWithFormat:@"Connection failed: %@", [error description]];
}
- (void)addRowToLogWindow:(id)data {

label.text = [NSString stringWithFormat:@"Adding data: %@%@", data, label.text]; // adding new row + 2x new line "

}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
[connection release];

NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
[responseData release];

NSError *error;
SBJSON *json = [[SBJSON new] autorelease];

NSDictionary *data = (NSDictionary *) [json objectWithString:responseString error:nil];

NSDictionary *menu = (NSDictionary *) [data objectForKey:@"name"];

NSArray *items = (NSArray *) [menu objectForKey:@"phoneNumber"];

int ndx;

for (ndx = 0; ndx< items.count; ndx++) {

stream = (NSDictionary *)[items objectAtIndex:ndx];

NSLog(@"This is the title of a stream: %@", [stream valueForKey:@"type"]);
[jsonArray addObject:stream];

}

NSLog(@" aray is %@",jsonArray);
NSLog(@" sterab is %@",[stream valueForKey:@"home"]);

[tableview reloadData];

NSLog(@" json coutn is %d",[jsonArray count]);

NSString *luckyNumbers = [json objectWithString:responseString error:&error];
[responseString release];

if (luckyNumbers == nil)
label.text = [NSString stringWithFormat:@"JSON parsing failed: %@", [error localizedDescription]];
else {
NSMutableString *text = [NSMutableString stringWithString:@"Lucky numbers:\n"];

label.text = text;
}
}

#pragma mark tabel

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

//if (searching)
//return 1;
//else

return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

NSLog(@" 43534535353 %d",[jsonArray count]);
return [jsonArray count];

}

//////////// WORKING CELL BIGGER SIZE CODE///////////

- (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {

/* if(indexPath.row == 0)

return 85;

*/

return 55;

}

////////////// ENDS HERE/////////////

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
//UITableView *tableView;
UITableViewCell *cell;
static NSString *CellIdentifier = @"Cell";

//self.tableView.frame = CGRectMake(0,searchBar.bounds.size.height,320,480);

cell= [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil ) {

NSLog(@" inside");
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];

mainLabel = [[[UILabel alloc] initWithFrame:CGRectMake(10.0, 5.0, 220.0, 15.0)] autorelease];

mainLabel.tag =33;

// mainLabel.font = [UIFont systemFontOfSize:14.0];
[mainLabel setFont:[UIFont boldSystemFontOfSize:[UIFont smallSystemFontSize]]];

mainLabel.textAlignment = UITextAlignmentLeft;

mainLabel.textColor = [UIColor blackColor];
mainLabel.highlightedTextColor = [UIColor greenColor];

//mainLabel.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleHeight;

[cell.contentView addSubview:mainLabel];
mainLabel.backgroundColor=[UIColor clearColor];

}

mainLabel.text = [[jsonArray objectAtIndex:indexPath.row] objectForKey:@"number"];
NSLog(@" dicst 5@",stream);
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
return cell;

}

Delegates Concept

2010-09-13T04:44:00.001-07:00

delegate performs methods on behalf of another object. A Table View doesn't know what to do when you pick an item in the list. Instead, it has to ask the delegate object a question, specifically, didSelectRowAtIndexPath. The only information the tableview knows is which section and row the user tapped. So the table view gives this information to the delegate object by essentially saying that "Hey, the user tapped Row 4 in Section 0. Do something."

The delegate object finds the didSelectRowAtIndexPath method and executes the code inside.

There are lots of Delegate methods for many different objects. For instance, the Text Field object can't do anything on its own. Instead, it uses a delegate to perform actions. If you press the enter key on the on screen keyboard, the text field asks the delegate object to perform a specific method, textFieldShouldReturn. If the delegate you set for your text field does not have a textFieldShouldReturn method, the text field will not know what to do when you press the enter button.

multiple annotation map

2010-08-18T18:59:00.001-07:00

- (void)viewDidLoad
{
NSLog(@"ddddddd");
/*
locationManager=[[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
locationManager.delegate=self;
//Start the compass updates.
[locationManager startUpdatingHeading];
[[self locationManager] startUpdatingHeading];
[[self locationManager] startUpdatingLocation];
*/

[mapView setMapType:MKMapTypeStandard];
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];

MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
region.center.latitude = 1.30;//41.902245099708516;
region.center.longitude = 103.8;//12.457906007766724;
region.span.longitudeDelta = 0.01f;
region.span.latitudeDelta = 0.01f;
[mapView setRegion:region animated:YES];

[mapView setDelegate:self];

MyAnnotation *ann = [[MyAnnotation alloc] init];
ann.title = @"Rome";
ann.subtitle = @"San Peter";
ann.coordinate = region.center;
//[mapView addAnnotation:ann];

/// one more annt
//My own Annotation
MKCoordinateRegion SecondRegion;
SecondRegion.center.latitude = 1.301;
SecondRegion.center.longitude = 103.81;

MyAnnotation *aSecondAnnotation = [[MyAnnotation alloc] init];
aSecondAnnotation.title = @"Second Annotation";

//By the way, this line doesn’t work, everything is still in the same line :(
aSecondAnnotation.subtitle = @"clerqkey";
aSecondAnnotation.coordinate = SecondRegion.center;

//// 2 more

MKCoordinateRegion SecondRegiona;
SecondRegiona.center.latitude = 1.31;
SecondRegiona.center.longitude = 103.9;

MyAnnotation *aSecondAnnotationa = [[MyAnnotation alloc] init];
aSecondAnnotationa.title = @"3rd Annotation";

//By the way, this line doesn’t work, everything is still in the same line :(
aSecondAnnotationa.subtitle = @"ret";
aSecondAnnotationa.coordinate = SecondRegiona.center;

//////////////////////////////////////////////////////////////////////////////////////////////

NSArray *Annotations = [NSArray arrayWithObjects:ann,aSecondAnnotation,aSecondAnnotationa,nil];

[mapView addAnnotations:Annotations];

[super viewDidLoad];
}/*
- (void)locationManager:(CLLocationManager *) manager didUpdateHeading:(CLHeading *) newHeading {
NSLog(@"55555555555555555555555");
NSLog(@"New magnetic heading: %f", newHeading.magneticHeading);
NSLog(@"New true heading: %f", newHeading.trueHeading);

}
*/

- (void)mapViewDidFinishLoadingMap:(MKMapView *)mapView
{
for (id currentAnnotation in mapView.annotations) {
[mapView selectAnnotation:currentAnnotation animated:YES];
}
}
- (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id )annotation
{
MKPinAnnotationView *pinView = nil;
[[self locationManager] startUpdatingHeading];
if(annotation != mapView.userLocation)
{
static NSString *defaultPinID = @"com.invasivecode.pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( pinView == nil )
pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];

pinView.pinColor = MKPinAnnotationColorPurple;
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
}
else
{
[mapView.userLocation setTitle:@"I am here"];
}

return pinView;
}

unzip data from web

2010-08-12T01:49:00.000-07:00

NSString *aDirectory =
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

NSFileManager *fileManager= [NSFileManager defaultManager];

NSString* filePath = [NSString stringWithFormat:@"%@/temp.zip", aDirectory];
NSString* updateURL = @"http://localhost/list.zip";
NSLog(@"Checking update at : %@", updateURL);
NSData* updateData = [NSData dataWithContentsOfURL: [NSURL URLWithString: updateURL] ];

[fileManager createFileAtPath:filePath contents:updateData attributes:nil];

ZipArchive *zipArchive = [[ZipArchive alloc] init];

if([zipArchive UnzipOpenFile:filePath]) {

if ([zipArchive UnzipFileTo:aDirectory overWrite:YES]) {
//unzipped successfully
NSLog(@"Archive unzip Success");
[fileManager removeItemAtPath:filePath error:NULL];
} else {
NSLog(@"Failure To Unzip Archive");
}

} else {
NSLog(@"Failure To Open Archive");
}

[zipArchive release];

NSLog(@"string text is %@",filePath);

saving locaaly and update data from web

2010-08-10T19:04:00.001-07:00

#pragma mark save file locally

NSString *applicationDocumentsDir =
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *storePath = [applicationDocumentsDir stringByAppendingPathComponent:@"sample1.cfg"];

NSURL *instructionsURLd = [[NSURL alloc] initFileURLWithPath:filePath];
NSData *dataXML = [NSData dataWithContentsOfURL:instructionsURLd];

[dataXML writeToFile:storePath atomically:YES];

// NSLog(@"matrix path %@",applicationDocumentsDir);
//NSLog(@"neo path %@",storePath);

#pragma mark update
// http://localhost/update.cfg

//NSData *dataXML = [NSData dataWithContentsOfURL:instructionsURLd];

NSURL *urlf = [[NSURL alloc] initWithString:@"http://localhost/update.cfg"];
dataXML = [NSData dataWithContentsOfURL:urlf];

NSMutableData *file = [[NSMutableData alloc] initWithContentsOfFile:storePath];
[file appendData:dataXML];
[file writeToFile:storePath atomically:YES];

Dynamic buttons and method on them

2010-08-06T18:14:00.001-07:00

#pragma mark load filePath
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"tabs" ofType:@"cfg"];
if (filePath) {

NSString *myText = [NSString stringWithContentsOfFile:filePath];

NSMutableArray *a1 = [[NSMutableArray alloc] init];
[a1 addObjectsFromArray:[myText componentsSeparatedByString:@"\n"]];

[a1 addObject:myText];

NSUInteger i;
for (i = 1; i <= [a1 count]-1; i++)
{

NSString *urlE=[a1 objectAtIndex:1];
NSLog(@"url is %@",urlE);

#pragma mark buttons
CGRect frame = CGRectMake(curXLoc, 10, 60, 30);
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = frame;
button.tag=i;
[button setImage:[UIImage imageNamed:@"tab2.png"] forState:UIControlStateNormal];
[button setTitle:(NSString *)@"new button" forState:(UIControlState)UIControlStateNormal];
[button addTarget:self action:@selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside];
curXLoc += (kScrollObjWidth1);
[self.view addSubview:button];

}

}
}

-(void)buttonEvent:(UIButton*)sender{
NSLog(@"new button clicked!!!");
if (sender.tag == 1) {
NSLog(@"1");
}
if (sender.tag == 2) {
NSLog(@"2");
}
}

double tap

2010-07-27T21:20:00.001-07:00

float distance;
if([touches count] == 2) {
// Order touches so they're accessible separately
NSMutableArray *touchesArray = [[[NSMutableArray alloc]
initWithCapacity:2] autorelease];
for(UITouch *aTouch in touches) {
[touchesArray addObject:aTouch];
}
UITouch *firstTouch = [touchesArray objectAtIndex:0];
UITouch *secondTouch = [touchesArray objectAtIndex:1];

// Do math
CGPoint firstPoint = [firstTouch locationInView:[firstTouch view]];
CGPoint secondPoint = [secondTouch locationInView:[secondTouch view]];
distance = sqrtf((firstPoint.x - secondPoint.x) *
(firstPoint.x - secondPoint.x) +
(firstPoint.y - secondPoint.y) *
(firstPoint.y - secondPoint.y));
}

show image in center of table view

2010-07-27T06:04:00.001-07:00

CGRect frame;

frame= CGRectMake(230 ,50, 50, 50);
UIImageView * myImageView = [[UIImageView alloc]init];
myImageView.image = [UIImage imageNamed:@"bowl.png"];
//cell.imageView.image= [UIImage imageNamed:@"bowl.png"];

myImageView.frame = frame;
//UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"bowl.png"]];
[cell.contentView addSubview: myImageView];
[myImageView release];

C in UNIX

2010-07-22T02:04:00.000-07:00

gcc -c test.c
$ gcc test.c
$ gcc test.c -o a.out
$ ./a.out

thats it HAPPY CODING :-)

How to Debug an iPhone App Crash, Part 1: EXC_BAD_ACCESS

2010-07-21T19:43:00.001-07:00

1. Run Build and Analyze: This kind of Build is very good at finding retain/release bugs. Take a good look at everything it flags.
2. Even better, run scan-build. I did a test recently, and found that some common errors are off by default in Build and Analyze that can be turned on in scan-build.
3. Choose Run > Enable Guard Malloc in the menu, and then re-run your application. This finds a whole class of buffer overrun issues. If this detects it, you’ll see a better error in the console.
4. You can instruct the compiler to ignore release calls and then report if anyone is sending messages to objects that would have been deallocated. This results in much better errors in the Console if it detects them.
5. Valgrind is the gold standard for finding memory bugs on Linux, and here’s a way to get it working in the iPhone Simulator.

Thanks to http://www.loufranco.com/blog/files/debug-iphone-crash-EXC_BAD_ACCESS.html

Adding images to map Annotation

2010-07-16T19:53:00.001-07:00

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:
(id )annotation {
if (annotation == mapView.userLocation) return nil;

UIImage *anImage = nil;
if([[annotation title] isEqualToString:@"type1"])
{
anImage=[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"type1.png" ofType:nil]];
}
else if([[annotation title] isEqualToString:@"type2"])
{
anImage=[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"type2.png" ofType:nil]];
}
else if([[annotation title] isEqualToString:@"type3"])
{
anImage=[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"type3.png" ofType:nil]];
}
else if([[annotation title] isEqualToString:@"type4"])
{
anImage=[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"type4.png" ofType:nil]];
}

MKAnnotationView *anView=(MKAnnotationView*)[mapView
dequeueReusableAnnotationViewWithIdentifier:@"annotation"];

if(anView==nil){
anView=[[[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"annotation"] autorelease];
}
anView.image = anImage;
anView.annotation=annotation;
anView.canShowCallout=YES;
if(tag==0){
anView.rightCalloutAccessoryView=[UIButton buttonWithType:UIButtonTypeDetailDisclosure];
}
return anView;
}

pasing string value

2010-07-08T18:20:00.000-07:00

statement "SELECT * FROM wateat_tbl where name like '%love%' or desc like '%love%'"
mixing SQL qurey + user input in one string

NSString* SQL_statement = [NSString stringWithFormat:@"SELECT * FROM wateat_tbl where name like '%%%@%%' or desc like '%%%@%%'", myStringPrt2, myStringPrt2];

const char *sqlStatement = [SQL_statement UTF8String]; // string to char need UTF8

add images to nav bar

2010-07-01T18:15:00.001-07:00

UIImage *image = [UIImage imageNamed: @"Enjoy TopBar1.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage: image];

self.navigationItem.titleView = imageView;

pointer to integer

2010-06-30T23:46:00.001-07:00

If you get the error “warning:comparison between pointer and integer”, odds are you are thinking right, but implementing your comparison wrong.

ur doin it wrong

if(count == 2) {

the right way

if([count intValue] == 2) {

saving xml locally

2010-06-29T21:10:00.000-07:00

///////////////////////////////
NSURL *url = [[NSURL alloc] initWithString:@"http:/xml.php"];

NSData *data = [NSData dataWithContentsOfURL:url];
NSString *applicationDocumentsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

NSString *storePath = [applicationDocumentsDir stringByAppendingPathComponent:@"icellxml.php"];

NSLog(@"new xml %@",storePath );

// write to file atomically (using temp file)
[data writeToFile:storePath atomically:TRUE];

NSLog(@" saved data is %@",storePath);

// NSData *data = [NSData dataWithBytes:ptr length:len]; to get back

////////////////////////////

NSFileManager *fileManager = [NSFileManager defaultManager];
if([fileManager fileExistsAtPath:storePath]) {
//open it and read it
NSLog(@"data file found. reading into memory");

} else {
NSLog(@"no file found. creating empty array");

}

////////// PULLING DATA IN OFFLINE MODE

NSFileManager *fileManager = [NSFileManager defaultManager];
if([fileManager fileExistsAtPath:storePath]) {
//open it and read it
NSLog(@"data file found. reading into memory");

NSURL *urla = [[[NSURL alloc] init] fileURLWithPath:storePath];

storePath = [storePath stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];

NSString *urlb = [[NSURL fileURLWithPath:storePath] absoluteString];

NSArray *paths = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory,
NSUserDomainMask, YES
);
NSString *documentsDirectory = [paths objectAtIndex:0];

NSURL *urlc = [NSURL fileURLWithPath:[documentsDirectory
stringByAppendingString:@"/icellxml1.php" ]];

NSLog(@"welcome %@",documentsDirectory );
NSLog(@"werkgwkerwekwegrw %@",urlc);

NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithContentsOfURL:urlc];

//Initialize the delegate.

XMLParser *parser = [[XMLParser alloc] initXMLParser];

//Set delegate

[xmlParser setDelegate:parser];

//Start parsing the XML file.

BOOL success = [xmlParser parse];

[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;

if(success)
{
NSLog(@"BINGO");
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}
else
{
NSLog(@"DAM DAM DAM !!!");
}

pull data from string

2010-06-28T19:14:00.000-07:00

lets say locationString = 1,2,3,4

NSLog(@" GEO MAP is %@",locationString);

//NSString *myData = [NSString stringWithContentsOfFile:myPath];
NSArray *posArray = [[NSArray alloc] initWithArray:[locationString componentsSeparatedByString:@","]];
NSLog(@"count = %d",[posArray count]);
NSLog(@"first one = %f", [[posArray objectAtIndex:2] floatValue]);
NSLog(@"2nd one = %f", [[posArray objectAtIndex:3] floatValue]);

output will be 3,4

getting lati and longi

2010-06-28T18:49:00.001-07:00

theAddress = [addressInput.text stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding];
NSString *urlString = [NSString stringWithFormat:@"http://maps.google.com/maps/geo?q=%@&output=csv",
theAddress];
NSString *locationString = [[[NSString alloc] initWithContentsOfURL:[NSURL URLWithString:urlString]] autorelease];

saving and retreving data

2010-06-27T21:20:00.000-07:00

/// setting dic
NSUserDefaults *saveDict = [NSUserDefaults standardUserDefaults];
[saveDict setObject:geotext forKey:@"keyToLookupString"];

// getting dic

NSUserDefaults *gete = [NSUserDefaults standardUserDefaults];

// getting an NSString
NSString *myString = [gete stringForKey:@"keyToLookupString"];
NSLog(@" this output is %@",myString);

sending image and text to server

2010-06-24T23:12:00.001-07:00

NSString *uTitle=text.text;
NSString *uMessage=myTextView.text;
NSData *imageData = UIImageJPEGRepresentation(imageView.image, .9);
NSString *post =[[NSString alloc] initWithFormat:@"&title=%@&message=%@&imagedetal=%@",uTitle,uMessage,imageData];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];

///////////////////////////

// setting up the URL to post to
NSString *urlString = @"http:/_post.php";

// setting up the request object now
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];

[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];

NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"];

NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request addValue:contentType forHTTPHeaderField: @"Content-Type"];

NSMutableData *body = [NSMutableData data];
//[body appendData:[[NSString stringWithFormat:@"%@", post] dataUsingEncoding:NSUTF8StringEncoding]];

// title
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"title\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:uTitle] dataUsingEncoding:NSUTF8StringEncoding]]; // title
// message
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"message\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:uMessage] dataUsingEncoding:NSUTF8StringEncoding]]; // title

/// image

[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"image\"; filename=\"ipodfile.jpg\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"action=upload&"] dataUsingEncoding:NSUTF8StringEncoding]];
///

[body appendData:[NSData dataWithData:imageData]];

[request setHTTPBody:body];
NSString *msgLength = [NSString stringWithFormat:@"%d", [body length]];
[request addValue: msgLength forHTTPHeaderField:@"Content-Length"];

NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];

NSLog(returnString);
[self alert];

sending lattitude and long to server

2010-06-24T18:36:00.001-07:00

// assemble the POST data

NSString *post = [NSString stringWithFormat:@"Latitude=%@&Longitude=%@¬e=%@",
[self urlEncodeValue:latitude],
[self urlEncodeValue:longitude],
[self urlEncodeValue:note],
];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];

NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:@"http://www.mypositionserver.com/position.php"]];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];

post images to server

2010-06-22T00:51:00.001-07:00

http://iphone.zcentric.com/2008/08/29/post-a-uiimage-to-the-web/

camera control on iphne

2010-06-21T20:25:00.001-07:00

http://icodeblog.com/2009/07/28/getting-images-from-the-iphone-photo-library-or-camera-using-uiimagepickercontroller/

this is the link for camera demo

Base 64 implementation

2010-06-17T20:51:00.000-07:00

i got it form cocoadev.com

//// class name Base64.h
#import

@interface Base64 : NSObject {

}
+ (void) initialize;
+ (NSString*) encode:(const uint8_t*) input length:(NSInteger) length;
+ (NSString*) encode:(NSData*) rawBytes;
+ (NSData*) decode:(const char*) string length:(NSInteger) inputLength;
+ (NSData*) decode:(NSString*) string;
@end

///

/// class name Base64.m

#import "Base64.h"

@implementation Base64
#define ArrayLength(x) (sizeof(x)/sizeof(*(x)))

static char encodingTable[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static char decodingTable[128];

+ (void) initialize {
if (self == [Base64 class]) {
memset(decodingTable, 0, ArrayLength(decodingTable));
for (NSInteger i = 0; i < ArrayLength(encodingTable); i++) {
decodingTable[encodingTable[i]] = i;
}
}
}

+ (NSString*) encode:(const uint8_t*) input length:(NSInteger) length {
NSMutableData* data = [NSMutableData dataWithLength:((length + 2) / 3) * 4];
uint8_t* output = (uint8_t*)data.mutableBytes;

for (NSInteger i = 0; i < length; i += 3) {
NSInteger value = 0;
for (NSInteger j = i; j < (i + 3); j++) {
value <<= 8;

if (j < length) {
value |= (0xFF & input[j]);
}
}

NSInteger index = (i / 3) * 4;
output[index + 0] = encodingTable[(value >> 18) & 0x3F];
output[index + 1] = encodingTable[(value >> 12) & 0x3F];
output[index + 2] = (i + 1) < length ? encodingTable[(value >> 6) & 0x3F] : '=';
output[index + 3] = (i + 2) < length ? encodingTable[(value >> 0) & 0x3F] : '=';
}

return [[[NSString alloc] initWithData:data
encoding:NSASCIIStringEncoding] autorelease];
}

+ (NSString*) encode:(NSData*) rawBytes {
return [self encode:(const uint8_t*) rawBytes.bytes length:rawBytes.length];
}

+ (NSData*) decode:(const char*) string length:(NSInteger) inputLength {
if ((string == NULL) || (inputLength % 4 != 0)) {
return nil;
}

while (inputLength > 0 && string[inputLength - 1] == '=') {
inputLength--;
}

NSInteger outputLength = inputLength * 3 / 4;
NSMutableData* data = [NSMutableData dataWithLength:outputLength];
uint8_t* output = data.mutableBytes;

NSInteger inputPoint = 0;
NSInteger outputPoint = 0;
while (inputPoint < inputLength) {
char i0 = string[inputPoint++];
char i1 = string[inputPoint++];
char i2 = inputPoint < inputLength ? string[inputPoint++] : 'A'; /* 'A' will decode to \0 */
char i3 = inputPoint < inputLength ? string[inputPoint++] : 'A';

output[outputPoint++] = (decodingTable[i0] << 2) | (decodingTable[i1] >> 4);
if (outputPoint < outputLength) {
output[outputPoint++] = ((decodingTable[i1] & 0xf) << 4) | (decodingTable[i2] >> 2);
}
if (outputPoint < outputLength) {
output[outputPoint++] = ((decodingTable[i2] & 0x3) << 6) | decodingTable[i3];
}
}

return data;
}

+ (NSData*) decode:(NSString*) string {
return [self decode:[string cStringUsingEncoding:NSASCIIStringEncoding] length:string.length];
}

@end

/// main class import base64.h

and here we go

//
NSString *post1 =[NSString stringWithFormat:@"%@|%@",tfUsername.text, tfPassword.text];

NSData *data = [post1 dataUsingEncoding: NSASCIIStringEncoding];
NSData *encryptedData = [post1 dataUsingEncoding: NSASCIIStringEncoding];

[Base64 initialize];

NSString *b64EncStr1=[Base64 encode:encryptedData];

NSLog(@"Base 64 encoded = %@",b64EncStr1);

NSScanner

2010-06-17T20:47:00.000-07:00

If you want to pull data from xml then use NSScanner :)

NSString *a =serverOutput2;// ur string
NSString *checkForValidity;

NSScanner *scanner = [NSScanner scannerWithString:a];

[scanner scanUpToString:@"" intoString:NULL];// write the word u want to scan in @
[scanner scanString:@"" intoString:NULL];
[scanner scanUpToString:@"" intoString:&checkForValidity];
NSLog(@"%@",checkForValidity);

Back to basics

2010-05-05T00:22:00.001-07:00

# @interface declaration is identical to a regular function
# @implementation shows a new keyword: super

* Similar to Java, Objective-C only has one parent class.
* Accessing it's super constructor is done through [super init] and this is required for proper inheritance.
* This returns an instance which you assign to another new keyword, self. Self is similar to this in Java and C++.

# if ( self ) is the same as if ( self != nil ) to make sure that the super constructor successfully returned a new object. nil is Objective-C's form of NULL from C/C++. This is gotten from including NSObject.
# After you've initialized the varialbes, you return yourself with return self;
# The deafult constructor is -(id) init;
# Constructors in Objective-C are technically just "init" methods, they aren't a special construct like they are in C++ and Java.
+ is used. The + denotes a class level function.

http://www.otierney.net/objective-c.html#downloading
http://www.atomicobject.com/pages/The+Objective+C+Language

Interface is a class which contain all unimplemented methods( can call them also abstract methods)
We will implement these methods in derived class of interface.
ie an interface is actually not inherited but implemented.
We cann't create an instance of interface object instead we can create an instance for derived class objects

//////////////////

classes in Objective-C provide the basic construct for encapsulating some data with the actions that operate on that data. An object is a runtime instance of a class,

Protocols and Delegates

2010-05-05T00:21:00.001-07:00

Protocols and Delegates

A protocol declares methods that can be implemented by any class. Protocols are not classes themselves. They simply define an interface that other objects are responsible for implementing. When you implement the methods of a protocol in one of your classes, your class is said to conform to that protocol.

Protocols are used frequently to specify the interface for delegate objects. A delegate object is an object that acts on behalf of, or in coordination with, another object. The best way to look at the interplay between protocols, delegates, and other objects is to look at an example.

The UIApplication class implements the required behavior of an application. Instead of forcing you to subclass UIApplication to receive simple notifications about the current state of the application, the UIApplication class delivers those notifications by calling specific methods of its assigned delegate object. An object that implements the methods of the UIApplicationDelegate protocol can receive those notifications and provide an appropriate response.

The declaration of a protocol looks similar to that of a class interface, with the exceptions that protocols do not have a parent class and they do not define instance variables. The following example shows a simple protocol declaration with one method:

@protocol MyProtocol

- (void)myProtocolMethod;

@end

2010-04-22T20:07:00.001-07:00

In the MVC design pattern, the model layer consists of objects that represent the data your application manages. The objects in this layer should be organized in the way that makes the most sense for the data. External interactions with model objects occur through a well-defined set of interfaces, whose job is to ensure the integrity of the underlying data at all times.

The view layer defines the presentation format and appearance of the application. This layer consists of your application’s windows, views, and controls. The views can be standard system views or custom views you create. You configure these views to display the data from your model objects in an appropriate way. In addition, your view objects need to generate notifications in response to events and user interactions with that data.

The controller layer acts as the bridge between the model and view layers. It receives the notifications generated by the view layer and uses them to make the corresponding changes in the data model. Similarly, if the data in the data layer changes for other reasons (perhaps because of some internal computation loop), it notifies an appropriate controller object, which then updates the views.

EXP--

View is just a GUI so when user interact with GUI (controller) and modify data indirectly(which is a model)

MVC

2010-04-22T20:07:00.000-07:00

Revolute joint

2010-04-21T01:54:00.000-07:00

public var rev1:b2RevoluteJoint;
var bodyDef2:b2BodyDef;
var boxDef2:b2PolygonDef;

bodyDef2 = new b2BodyDef();
bodyDef2.position.Set(26, 12.5);
//bodyDef2.angle = -.5;

boxDef2 = new b2PolygonDef();
boxDef2.SetAsBox(3, .1);//7
boxDef2.friction = .1;
boxDef2.density = 12.1;
/*
*/
body2 = m_world.CreateBody(bodyDef2);
body2.CreateShape(boxDef2);
body2.SetMassFromShapes();

/////////////// body 20

var bodyDef20:b2BodyDef;
var boxDef20:b2PolygonDef;

bodyDef20 = new b2BodyDef();
bodyDef20.position.Set(23, 12.5);
//bodyDef2.angle = -.5;

boxDef20 = new b2PolygonDef();
boxDef20.SetAsBox(.5, .1);//7
boxDef20.friction = .1;
boxDef20.density = 0;
/*
*/
body20 = m_world.CreateBody(bodyDef20);
body20.CreateShape(boxDef20);
body20.SetMassFromShapes();

///////////////////

var rjdDef:b2RevoluteJointDef = new b2RevoluteJointDef();
rjdDef.Initialize(body2, body20, body20.GetWorldCenter() );

rjdDef.enableLimit=true;
// rjdDef.maxMotorTorque=16600.0;
//rjdDef.motorSpeed=500.0;

rjdDef.enableMotor=true;
rjdDef.lowerAngle=-0.18*3.14
rjdDef. upperAngle=0.25*3.14
rev1 = m_world.CreateJoint(rjdDef) as b2RevoluteJoint;

/////// center is static and other is dynamic .. and you can play with dynamic///
somthing like this

body2.SetAngularVelocity(ang);

cocos2d updates implementation

2010-04-14T00:00:00.000-07:00

http://code.google.com/p/cocos2d-iphone/source/browse/tags/release-0.99.0/README#87

Particle effect Implementation

2010-04-08T04:29:00.000-07:00

CCParticleSystem *emitter = [CCParticleExplosion node];

emitter = [[CCParticleMeteor alloc] init];
emitter = [[CCParticleFire alloc] init];
emitter.texture = [[CCTextureCache sharedTextureCache] addImage:@"fire.png"];
emitter.position = ccp(location.x,location.y);
emitter.life = 0.2f;
emitter.duration = 0.3f;
emitter.lifeVar = 0.3f;

[self addChild:emitter];

Pointers

2010-03-29T22:10:00.000-07:00

recalling old memories
http://www.cs.ucr.edu/~pdiloren/C++_Pointers

Animate sprite

2010-03-10T21:07:00.001-08:00

sheet99 = [CCSpriteSheet spriteSheetWithFile:@"fan_l1l2_left.png" capacity:12];
[self addChild:sheet99 z:4 tag:kTagSpriteSheet];
sprite99 = [sheet99 createSpriteWithRect:CGRectMake(0,0,300,400)];//32 * idx,32 * idy,32,32
sprite99.position=ccp(4,14);
[sheet99 addChild:sprite99 z:7];

CCAnimation *animation = [CCAnimation animationWithName:@"dance" delay:.1f ];

[animation addFrameWithTexture:sheet99.texture rect:CGRectMake(-121,0,242,400)];//-121
[animation addFrameWithTexture:sheet99.texture rect:CGRectMake(0, 0, 242,400)];//0,0
id action = [CCAnimate actionWithAnimation:animation];
// Run the animation
//id repeatAction = [CCRepeat actionWithAction:action times:100];

// To repeat forever, use this
id repeatAction = [CCRepeatForever actionWithAction:action];

[sprite99 runAction:repeatAction];

body and updation

2010-03-10T21:01:00.000-08:00

b2BodyDef bodyDef9c8;
bodyDef9c8.type =b2_staticBody;

bodyDef9c8.position.Set(9,9);//
//bodyDef9c8.angle=-58;
//bodyDef.userData = sprite;
b2Body* body9c8;
//= world->CreateBody(&groundBodyDef5);
body9c8 = world->CreateBody(&bodyDef9c8);

// Define another box shape for our dynamic body.
b2PolygonShape dynamicBox9c8;
dynamicBox9c8.SetAsBox(1.7f, .1f);//These are mid points for our 1m box

// Define the dynamic body fixture.
b2FixtureDef fixture9c8;
//fixture99.userData = @"Box";

fixture9c8.shape = &dynamicBox9c8;
fixture9c8.density = 0;
fixture9c8.friction = 0.3f;
fixture9c8.restitution=1.1f;
body9c8->CreateFixture(&fixture9c8);

#####################
update
###################
body0->SetTransform (b2Vec2(8,12),0);//target replaced by setXform

2010-02-19T04:27:00.001-08:00

stack in objc

2010-02-09T21:38:00.001-08:00

for (float32 x =0.0f; x<300.0f; x=x+1.0f) {
float32 y=1.0f;
// Define the static body.
//Set up a 1m squared box in the physics world
b2BodyDef bodyDef;
bodyDef.type = b2_staticBody;

bodyDef.position.Set(x, y);
b2Body *body = world->CreateBody(&bodyDef);

// Define another box shape for our static body.
b2PolygonShape staticBox;
staticBox.SetAsBox(.5f, .5f);//These are mid points for our 1m box

// Define the static body fixture.
b2FixtureDef fixtureDef;
fixtureDef.shape = &staticBox;
fixtureDef.density = 1.0f;
fixtureDef.friction = 0.3f;
body->CreateFixture(&fixtureDef);
}

create body IPhone

2010-01-07T01:52:00.000-08:00

// body
b2BodyDef groundBodyDef2;
groundBodyDef2.position.Set(8, 9);
groundBodyDef2.angle=28;
//groundBox2.restitution=1;
b2Body* groundBody2 = world->CreateBody(&groundBodyDef2);
b2PolygonShape groundBox2;
groundBox2.SetAsBox(1.5f, .1f);//SetAsEdge(b2Vec2(3,3), b2Vec2(3,0));
groundBody2->CreateFixture(&groundBox2);

// triangle
b2BodyDef polyBodyDef; // Define the body
polyBodyDef.position.Set(p.x/PTM_RATIO, p.y/PTM_RATIO);
b2Body *poly = world->CreateBody(&polyBodyDef);

b2PolygonShape polyShapeDef; // Define the shape
//polyShapeDef.SetAsBox(1.0f, 1.0f);
polyShapeDef.m_vertexCount = 3;
polyShapeDef.m_vertices[0].Set(-1, 0);
polyShapeDef.m_vertices[1].Set(1, 0);
polyShapeDef.m_vertices[2].Set(0, 1.5);

b2FixtureDef polyFixtureDef; // Define the fixture
polyFixtureDef.shape = &polyShapeDef;
polyFixtureDef.density = 1.0f;
polyFixtureDef.friction = 0.3f;

poly->CreateFixture(&polyFixtureDef);

Enable and disable keyboard

2009-12-17T21:11:00.001-08:00

1) go into interface builder and add a text field.
2) Add this code in your .h file:

Code:

-(IBAction) endText;

3) Add this code in your .m file:

Code:

- (IBAction) endText {

}

Global variable in Obj c

2009-12-16T23:10:00.001-08:00

It is simple. In any .h file, write:
Code:

extern int variable;

Put this declaration *outside* of any Objective-C block like @interface...@end. You can place it before the @interface or after the @end. Either way is just fine.

Then, define the variable in any .m file (it doesn't matter which one, but only place it in one file):

Code:

int variable;

playing sound infinitie and then stop on click

2009-12-15T21:28:00.001-08:00

in .h add
#import AudioToolbox/AudioServices.h
#import AVFoundation/AVFoundation.h

and declare
AVAudioPlayer *audioPlayer

in .m

inside 1st loaded ()

NSString *newAudioFile = [[NSBundle mainBundle] pathForResource:@"2000hz" ofType:@"wav"];

audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:newAudioFile] error:NULL];

[audioPlayer setDelegate:self];
[audioPlayer setNumberOfLoops:-1];
[audioPlayer prepareToPlay];
BOOL plays = [audioPlayer play];

and to stop sound
write this on view change

[audioPlayer stop];

random Things under control

2009-12-13T20:21:00.001-08:00

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
CGPoint location = [touch locationInView:touch.view];
for(newBall in enemies)
{
newBall.center = CGPointMake(location.x,location.y);
}
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint location = [touch locationInView:touch.view];
for(newBall in enemies)
{
newBall.center = CGPointMake(location.x,location.y);
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint location = [touch locationInView:touch.view];
for(newBall in enemies)
{
newBall.center = CGPointMake(location.x,location.y);
}
}

////////////

sound code

NSString * path = [[NSBundle mainBundle] pathForResource:@"ballhitbar" ofType:@"wav"];
SystemSoundID soundID;
AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:path], &soundID);

and to play wrte this

AudioServicesPlaySystemSound(soundID);

///////////////////////////////////// random
//Here is the spawnE...

-(void)spawnE {

enemies = [[NSMutableArray alloc] init];
UIImage *enemyImage = [UIImage imageNamed:@"enemy.png"];
UIImageView *newEnemy = [[UIImageView alloc] initWithImage: enemyImage];

int randomX = arc4random() % 320; // number from 0 to 319

newEnemy.center = CGPointMake( randomX, 0);

[enemies addObject:newEnemy];

[self addSubview: newEnemy];

}

///////// or
enemies = [[NSMutableArray alloc] init];

UIImage *enemyImage = [UIImage imageNamed:@"bug.png"];

for (int i=0; i<12; i++){
newEnemy = [[UIImageView alloc] initWithImage: enemyImage];

int randomX = arc4random() % 320; // number from 0 to 319
int randomY = arc4random() % 480;

newEnemy.center = CGPointMake( randomX,randomY);// working all over screen

[enemies addObject:newEnemy];

[self addSubview: newEnemy];

//newEnemy.userInteractionEnabled = YES;

}
//[self move];

}

//////////////

function sytanx in obj c

2009-12-03T01:00:00.001-08:00

in .h file
//
-(void)create;

/// in .m file

-(void) create
{
// write here
}

// call function
[self create]; // either in viewDidload() or anywer

stack

2009-10-26T20:30:00.000-07:00

for (i = 0; i < 50; i++) {
circleDef.radius = Math.random()/20+0.02;

bodyDef = new b2BodyDef();
bodyDef.position.Set(Math.random()*8+140,1);
bodyDef.allowSleep = true;
bodyDef.linearDamping = 0.1;
bodyDef.angularDamping = 0.1;

b = world.CreateBody(bodyDef);

b.CreateShape(circleDef);
b.SetMassFromShapes();

var circle:Circle=new Circle()
circle.x= b.GetPosition().x* 50
circle.y= b.GetPosition().y* 50
circle.rotation = b.GetAngle() * (180/Math.PI);

screen.addChild(circle)
b.m_userData = circle;
}

Instantiation

2009-09-24T00:06:00.000-07:00

Plus signs denote class methods, minus signs denote instance methods.
Class methods have no access to instance variables.
@implementation classname
+classMethod {
// implementation
}
-instanceMethod {
// implementation
}
@end

/////

Instantiation

Once an Objective-C class is written, it can be instantiated. This is done by first allocating the memory for a new object and then by initializing it. An object isn't fully functional until both steps have been completed. These steps are typically accomplished with a single line of code:

MyObject * o = [[MyObject alloc] init];

The alloc call allocates enough memory to hold all the instance variables for an object, and the init call can be overridden to set instance variables to specific values on creation. The init method is often written as follows:

-(id) init {
self = [super init];
if (self) {
ivar1 = value1;
ivar2 = value2;
.
.
.
}
return self;
}

////

Properties are implemented by way of the @synthesize keyword, which generates getter and setter methods according to the property declaration. Alternately, the @dynamic keyword can be used to indicate that accessor methods will be provided by other means.

Cocos2d

2009-09-22T03:09:00.001-07:00

In Cocos2d iPhone you'll be dealing with the Scene and Layer classes frequently. A Scene is what the players can see at a given time, and is composed of one or more Layers. To display a specific Scene, you tell the Director (which is a singleton) to play it.

kaminey Night

2009-09-18T23:00:00.001-07:00

CGAffineTransform

2009-09-18T07:18:00.000-07:00

Any change to a view's position, scale, or rotation can now be stored in a property of the view called transform. It's a CGAffineTransform struct, and it's a bit cryptic if you've never worked with transformation matrices before.

A transformation matrix nothing more than a two-dimensional array of numbers. Okay, perhaps I shouldn't say "just", as transformation matrices are quite powerful. They can store complex changes to the position and shape of an object, including rotating, scaling, moving, and skewing (or shearing) the view as it's drawn. This adds a little bit of programmer complexity if you want to do anything more than the absolute basics, but it opens up a world of possibilities.

To translate a view from its current position, you would pass the view's transform property here. To translate the view from its original position, you would pass in CGAffineTransformIdentity. Here is an example that would move the view five points to the right and ten points down.

theView.transform = CGAffineTransformTranslate(theView.transform, 5.0, 10.0);

interface rotation based on hand movement

2009-09-14T22:02:00.000-07:00

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return YES;//(interfaceOrientation == UIInterfaceOrientationPortrait);
}

IPHone timer Event

2009-09-08T21:33:00.001-07:00

objectmoveTimer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(objectTimer) userInfo:nil repeats:YES];

-void(objectTimer)
{

// THis is execute Continously // since repeat is set to Yes :)
}

running Apps

2009-09-07T04:07:00.000-07:00

in the "target " go to properties and set identifier as "com.ihexcode.first"
and add .mobileprovision and Distribution to your project

Ice Age

2009-09-04T23:29:00.000-07:00

Defining a Class

2009-09-03T00:02:00.000-07:00

Defining a Class

Much of object-oriented programming consists of writing the code for new objects—defining new classes. In Objective-C, classes are defined in two parts:

*

An interface that declares the methods and instance variables of the class and names its superclass
*

An implementation that actually defines the class (contains the code that implements its methods)

/////////////////////////
Although the compiler doesn’t require it, the interface and implementation are usually separated into two different files. The interface file must be made available to anyone who uses the class.

A single file can declare or implement more than one class. Nevertheless, it’s customary to have a separate interface file for each class, if not also a separate implementation file. Keeping class interfaces separate better reflects their status as independent entities.

Interface and implementation files typically are named after the class. The name of the implementation file has the .m extension, indicating that it contains Objective-C source code. The interface file can be assigned any other extension. Because it’s included in other source files, the name of the interface file usually has the .h extension typical of header files. For example, the Rectangle class would be declared in Rectangle.h and defined in Rectangle.m.

Separating an object’s interface from its implementation fits well with the design of object-oriented programs. An object is a self-contained entity that can be viewed from the outside almost as a “black box.” Once you’ve determined how an object interacts with other elements in your program—that is, once you’ve declared its interface—you can freely alter its implementation without affecting any other part of the application.

/////////////
Class Interface

The declaration of a class interface begins with the compiler directive @interface and ends with the directive @end. (All Objective-C directives to the compiler begin with “@”.)

@interface ClassName : ItsSuperclass

{

instance variable declarations

}

method declarations

@end

////
The first line of the declaration presents the new class name and links it to its superclass. The superclass defines the position of the new class in the inheritance hierarchy

////
If the colon and superclass name are omitted, the new class is declared as a root class, a rival to the NSObject class.

///////////////////////
Inheritance

Class definitions are additive; each new class that you define is based on another class from which it inherits methods and instance variables. The new class simply adds to or modifies what it inherits. It doesn’t need to duplicate inherited code.

Inheritance links all classes together in a hierarchical tree with a single class at its root. When writing code that is based upon the Foundation framework, that root class is typically NSObject. Every class (except a root class) has a superclass one step nearer the root, and any class (including a root class) can be the superclass for any number of subclasses one step farther from the root. Figure 1-1 illustrates the hierarchy for a few of the classes used in the drawing program.

Some Drawing Program Classes

iphone video

2009-08-28T06:46:00.001-07:00