I found this useful class for base64 encoding / decoding. It is written by Kiichi Takeuchi Base64.h @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 Sample Usage [Base64 initialize]; NSData * [...]
Archive of posts tagged objective-c
iPhone SDK generate MD5 Hash of a string
This function will help you generate MD5 hash of a given string Class.h + (NSString *)getMD5FromString:(NSString *)source; Class.m + (NSString *)getMD5FromString:(NSString *)source{ const char *src = [source UTF8String]; unsigned char result[CC_MD5_DIGEST_LENGTH]; CC_MD5(src, strlen(src), result); NSString *ret = [[[NSString alloc] initWithFormat:@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7], result[8], result[9], result[10], result[11], result[12], result[13], result[14], [...]
iPhone SDK convert hex color string to UIColor
This function will help you to convert hex color string to UIColor Class.h + (UIColor *) colorWithHexString: (NSString *) stringToConvert; Class.m + (UIColor *) colorWithHexString: (NSString *) stringToConvert{ NSString *cString = [[stringToConvert stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString]; // String should be 6 or 8 characters if ([cString length] < 6) return [UIColor blackColor]; // strip 0X if [...]
Mumbaikar iPhone App Now Available at the App Store
My first iPhone App Mumbaikar now available at the App store ! Please read my whole experience in “How we did our first iPhone App @flipmedia”
Add UIActivityIndicatorView to UINavigationBar
For me it took sometime to figure out how to show activity indicator in the navigation bar. Later I found it was very simple. When you push a view to the navigation you get to play with navigationItem property on the view that is being pushed. In your viewWillAppear method you can add this code. [...]