Add rounded corners to all UIImageViews

code-reuse, ios, objective-c-category, subclass

Solution

You could use a category for UIImage which is an alternate way to subclass a Class and sometimes easier for just small changes.

e.g add a method that returns a UIImage with the rounded corner attributes set.

+(UIImage *)imageWithContentsOfFile:(NSString *)file cornerRadius:(NSInteger)... 

more info on Objective-c categories can be found http://macdevelopertips.com/objective-c/objective-c-categories.html

Problem

I would like to add some rounded corners to all of the UIImageViews in my project. I have already got the code working, but am having to apply it to every image; should I subclass UIImageView to add this? If so, can someone give me some pointers as to how to do this? Here is the code ``` - (void)viewDidLoad { [super viewDidLoad]; NSString *mainpath = [[NSBundle mainBundle] bundlePath]; welcomeImageView.image = [UIImage imageWithContentsOfFile:[mainpath stringByAppendingString:@"/test.png"]]; welcomeImageView.layer.cornerRadius = 9.0; welcomeImageView.layer.masksToBounds = YES; welcomeImageView.layer.borderColor = [UIColor blackColor].CGColor; welcomeImageView.layer.borderWidth = 3.0; CGRect frame = welcomeImageView.frame; frame.size.width = 100; frame.size.height = 100; welcomeImageView.frame = frame; } ```

Original source

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