• iPhone NSData to NSString Conversion

    Hi, Use the following line of code to convert NSData to NSString in iPhone/iPad using Objective C. Here ‘yourData’ is your NSData which you want to convert to NSString. 🙂

  • Email id verification using Objective C

    Hi, In order to verify an email address you have entered is valid or not using Objective C, use the following code. – (BOOL) checkYourMail: (NSString *) myEmail{ NSString *checkMail= @”[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+.[A-Za-z]{2,4}”; NSPredicate *matchMail = [NSPredicate predicateWithFormat:@”Matching %@”, checkMail]; return [matchMail […]

  • Splitting a string using symbols in Objective C

    Hi, If you want to split a string between a symbol like, ‘.’ or ‘-‘ or ‘,’ in Objective C, what to do? See the code for how to split string in Objective C. NSString *myString = @”song.mp3”; NSArray *splitArray […]

  • Adding Image to a UIImageView using Image URL

    Hi, Sometimes you need to add Image to a UIImageView from the URL of the image you got. In that case, this is how you can add image to the UIImageView. NSString *picURL= @”http://photobucket.com/yourImage.gif”; NSData *picData = [[NSData alloc]initWithContentsOfURL:[NSURL URLWithString:mapURL]]; […]

  • Delete a substring in Objective C, Iphone , Mac………….

    This code snippet deletes a substring from a original string.. /** initialize two strings **/ NSString *string = @”This is heaven”; NSString *part = @”heaven”; /** Get the range of the substring in the original string **/ NSRange range = […]

  • How to add infinite backgrounds in Cocos2D, iphone?

    You often may need scrolling backgrounds in your game or any other application. The following code helps you to add continuous backgrounds. Each sprite is added to the right of the current sprite which make them continuos. //Add more stripes, […]

  • Working with files in Objective C

    Basic file operations Assumes the existence of a file called “testfile” in the current working directory #import #import #import #import #import int main (int argc, char *argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; NSString *fName = @”testfile”; NSFileManager […]

  • How to use picker in iphone, A simple example.

    #import “ViewController.h” @implementation ViewController @synthesize mlabel; – (void)viewDidLoad { [super viewDidLoad]; arrayNo = [[NSMutableArray alloc] init]; [arrayNo addObject:@” Hello “]; [arrayNo addObject:@” Hai “]; [arrayNo addObject:@” Picker “]; [arrayNo addObject:@” Simple “]; [arrayNo addObject:@” example “]; [pickerView selectRow:1 inComponent:0 animated:NO]; […]


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