如何去除CALayer的面罩？

Question

Hi guys so this is my first question on SO, this has been boggling me for hours. Here is my code.

.m

- (IBAction)changeMask:(id)sender {
if (!mask) {

    [wallpaperImageView.layer setMask:captionTextField.layer];

    NSLog(@"%@",captionTextField.layer);
    mask = YES;
}
else {

    wallpaperImageView.layer.mask = nil;
    NSLog(@"%@",captionTextField);
    mask = NO;
}


}

Every time wallpaperImageView.layer.mask = nil; is called, captionTextField.layer gets deallocated. I am using ARC in my project. I assigned captionTextField with @property (nonatomic, strong) I used NSZombies and got *** -[CALayer retain]: message sent to deallocated instance 0x85b5e20

How do I let the CALayer not get deallocated?

Answer 1

You did not provide enough information. Who owns your captionTextField?

Post the code that shows how you create your captionTextField, and where you store it. You need to save a strong reference to it somewhere (strong instance variable or property) or it will indeed get released as soon as nobody holds onto it.

It does not make sense that setting your wallpaperImageView's layer's mask to nil is causing your captionTextField to be released, unless you create your captionTextField and don't keep a strong reference to it.