IOS 7 masking issue - Not able save masked image from uiimageview

Question

I have this piece of code working fine in IOS 6 but not saving masked image in IOS7, any explanation,suggestion ?

//Masking the image
- (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);
    return [UIImage imageWithCGImage:masked];
}


- (IBAction)savebtnclicked:(UIButton *)sender {


    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:@"savedImage2.png"];
    UIImage *image = _imageFinal.image; // imageView is my image from camera
    NSData *imageData = UIImagePNGRepresentation(image);
    [imageData writeToFile:savedImagePath atomically:NO];

}

You need to describe what it does wrong. Maybe show some screenshots. — Wain, Jan 17 '14 at 10:18
@Simon McLoughlin it saves images but no modification in image simple copying on the other hand same code in IOS6 create two images with transparent image part — Ankuribc, Jan 17 '14 at 12:06
Check this thread [ http://stackoverflow.com/questions/18939417/uiimage-masking-problems-ios-7 ] — Abhinit, Jan 17 '14 at 12:38

score 0 · Answer 1 · answered Jul 24 '14 at 07:12

0

Make sure that both images (the image to be masked and the mask itself) have an alpha channel! This solved the issue for me on iOS7.

answered Jul 24 '14 at 07:12

sust86

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IOS 7 masking issue - Not able save masked image from uiimageview

1 Answers1