Saturday, 12 January 2013

Set Dyanamic Color or change the color of UIImage..

-(UIImage *)imageNamed:(NSString *)name withColor:(UIColor *)color{

    // load the image
//    NSString *name = @"badge.png";
    UIImage *img = [UIImage imageNamed:name];
    // begin a new image context, to draw our colored image onto
    // get a reference to that context we created
    CGContextRef context = UIGraphicsGetCurrentContext();
    // set the fill color
    [color setFill];
    // translate/flip the graphics context (for transforming from CG* coords to UI* coords
    CGContextTranslateCTM(context, 0, img.size.height);
    CGContextScaleCTM(context, 1.0, -1.0);
    // set the blend mode to color burn, and the original image
    CGContextSetBlendMode(context, kCGBlendModeColorBurn);
    CGRect rect = CGRectMake(0, 0, img.size.width, img.size.height);
    CGContextDrawImage(context, rect, img.CGImage);
    // set a mask that matches the shape of the image, then draw (color burn) a colored rectangle
    CGContextClipToMask(context, rect, img.CGImage);
    CGContextAddRect(context, rect);
    // generate a new UIImage from the graphics context we drew onto
    UIImage *coloredImg = UIGraphicsGetImageFromCurrentImageContext();
    //return the color-burned image
    return coloredImg;

use this like bellow...

    yourImageView.image = [self imageNamed:@"yourImageName" withColor:[UIColor orangeColor]];

See this link also...
and other link

Tuesday, 8 January 2013

Validation for Number with character limit

- (BOOL)NumberValidation:(NSString *)string  {
    NSUInteger newLength = [string length];
    NSCharacterSet *cs = [[NSCharacterSet characterSetWithCharactersInString:@"1234567890"] invertedSet];
    NSString *filtered = [[string componentsSeparatedByCharactersInSet:cs] componentsJoinedByString:@""];
    return (([string isEqualToString:filtered])&&(newLength <= 3));

in your button action event just use this like bellow...

    if ([self NumberValidation:yourString]) {
        NSLog(@"Macth here");
    else {
        NSLog(@"Not Match here");

Thursday, 3 January 2013

presentViewController:animated:completion: is available on iOS5 and above only, hence you get that crash.

 presentViewController:animated:completion: is available on iOS5 and above only, hence you get that crash.

Change the last part to:

if ([MFMailComposeViewController canSendMail]) 
            UIImage *tempImageSave=[self captureView];
            //                imgBackBoard.image = [self captureView];
            //                [imgBackBoard.image retain];
            MFMailComposeViewController *mailComposeViewController = [[MFMailComposeViewController alloc] init];
            NSString *mailBody = @"New Image Of Retreat Caravans Posted By Paras";
            NSData *imageData = UIImagePNGRepresentation(tempImageSave);
            [mailComposeViewController addAttachmentData:imageData mimeType:@"image/png" fileName:@"Testing"];
            [mailComposeViewController setMessageBody:mailBody isHTML:NO];
            mailComposeViewController.mailComposeDelegate = self;
            if ([self respondsToSelector:@selector(presentViewController:animated:completion:)])
            {   //yes->so do it!
                [self presentViewController:mailComposeViewController animated:YES completion:NULL];
            {   //nope->we seem to be running on something prior to iOS5, do it the old way!
                [self presentModalViewController:mailComposeViewController animated:YES];
//            [self presentViewController:mailComposeViewController animated:YES completion:nil];
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"e-Mail Sending Alert"
                                                            message:@"You can't send a mail"
            [alert show];
            [alert release];

Also dissmis like above..
For EX..

if([self respondsToSelector:@selector(dismissViewControllerAnimated:completion:)])
        [self dismissViewControllerAnimated:YES completion:nil];
        [self dismissModalViewControllerAnimated:YES];

This will first check if the new way of presenting a viewController is supported. For making sure that this works fine in the future, as presentModalViewController: is marked as being deprecated, we only use that option if the new way is not available.

Tuesday, 1 January 2013

Get Device Model or Device Type and platform...

just use this bellow method and you will got the Device platform or Device Type

- (NSString *) platformString{
    // Gets a string with the device model
    size_t size;  
    sysctlbyname("hw.machine", NULL, &size, NULL, 0);  
    char *machine = malloc(size);  
    sysctlbyname("hw.machine", machine, &size, NULL, 0);  
    NSString *platform = [NSString stringWithCString:machine encoding:NSUTF8StringEncoding];  
    if ([platform isEqualToString:@"iPhone1,1"])    return @"iPhone 2G";
    if ([platform isEqualToString:@"iPhone1,2"])    return @"iPhone 3G";
    if ([platform isEqualToString:@"iPhone2,1"])    return @"iPhone 3GS";
    if ([platform isEqualToString:@"iPhone3,1"])    return @"iPhone 4";
    if ([platform isEqualToString:@"iPhone3,2"])    return @"iPhone 4";
    if ([platform isEqualToString:@"iPhone3,3"])    return @"iPhone 4 (CDMA)";    
    if ([platform isEqualToString:@"iPhone4,1"])    return @"iPhone 4S";
    if ([platform isEqualToString:@"iPhone5,1"])    return @"iPhone 5";
    if ([platform isEqualToString:@"iPhone5,2"])    return @"iPhone 5 (GSM+CDMA)";
    if ([platform isEqualToString:@"iPod1,1"])      return @"iPod Touch (1 Gen)";
    if ([platform isEqualToString:@"iPod2,1"])      return @"iPod Touch (2 Gen)";
    if ([platform isEqualToString:@"iPod3,1"])      return @"iPod Touch (3 Gen)";
    if ([platform isEqualToString:@"iPod4,1"])      return @"iPod Touch (4 Gen)";
    if ([platform isEqualToString:@"iPod5,1"])      return @"iPod Touch (5 Gen)";
    if ([platform isEqualToString:@"iPad1,1"])      return @"iPad";
    if ([platform isEqualToString:@"iPad1,2"])      return @"iPad 3G";
    if ([platform isEqualToString:@"iPad2,1"])      return @"iPad 2 (WiFi)";
    if ([platform isEqualToString:@"iPad2,2"])      return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,3"])      return @"iPad 2 (CDMA)";
    if ([platform isEqualToString:@"iPad2,4"])      return @"iPad 2";
    if ([platform isEqualToString:@"iPad2,5"])      return @"iPad Mini (WiFi)";
    if ([platform isEqualToString:@"iPad2,6"])      return @"iPad Mini";
    if ([platform isEqualToString:@"iPad2,7"])      return @"iPad Mini (GSM+CDMA)";
    if ([platform isEqualToString:@"iPad3,1"])      return @"iPad 3 (WiFi)";
    if ([platform isEqualToString:@"iPad3,2"])      return @"iPad 3 (GSM+CDMA)";
    if ([platform isEqualToString:@"iPad3,3"])      return @"iPad 3";
    if ([platform isEqualToString:@"iPad3,4"])      return @"iPad 4 (WiFi)";
    if ([platform isEqualToString:@"iPad3,5"])      return @"iPad 4";
    if ([platform isEqualToString:@"iPad3,6"])      return @"iPad 4 (GSM+CDMA)";
    if ([platform isEqualToString:@"i386"])         return @"Simulator";
    if ([platform isEqualToString:@"x86_64"])       return @"Simulator";
    return platform;