– (void)viewDidLoad { [super viewDidLoad]; UIImage *imageToMask = [UIImage imageNamed:@”koko.jpg”]; UIImageView *imageToMaskImgView = [[UIImageView alloc] initWithImage:imageToMask]; CGRect imgRect = CGRectMake(0, 0, imageToMaskImgView.frame.size.width, imageToMaskImgView.frame.size.height); UIView *maskMaster = [[UIView alloc] initWithFrame:imgRect]; [maskMaster setBackgroundColor:[UIColor whiteColor]]; [maskMaster addSubview:imageToMaskImgView]; UIGraphicsBeginImageContext(maskMaster.bounds.size); [maskMaster.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); NSLog(@”%@ is the view image”, viewImage); UIImage *bFooImg = [UIImage imageNamed:@”blackapple.png”]; self.myPic.image = [self maskImage:bFooImg withMask:viewImage]; } – (UIImage*) maskImage:(UIImage *)image withMask:(UIImage *)maskImage { CGImageRef maskRef = maskImage.CGImage; CGImageRef mask = CGImageMaskCreate(CGImageGetWidth(maskRef), CGImageGetHeight(maskRef), CGImageGetBitsPerComponent(maskRef), CGImageGetBitsPerPixel(maskRef), CGImageGetBytesPerRow(maskRef), CGImageGetDataProvider(maskRef), NULL, false); CGImageRef masked = CGImageCreateWithMask([image CGImage], mask); //memman CGImageRelease(mask); CGImageRelease(maskRef); return [UIImage imageWithCGImage:masked]; }
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