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objective-cuitabbar

Customise UITabBar (background image) via subclassing and overriding initWithFrame

There seems to be a lot of different ways to change the appearance of a UITabBar. I found that in iOS 5, there are new properties of the UITabBar such as backgroundImage. However, how and where do I set this?

I would like to subclass UITabBar and override the initWithFrame method, setting the background image.

Although I have created a new class @interface UITabBarClass : UITabBar and in the implementation of initWithFrame added the following code:

- (id)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        // Initialization code
        // Change background image
        UIImage *backgroundImage = [UIImage imageWithContentsOfFile:@"uitabbar-background-normal"];

        self.backgroundImage = backgroundImage;
    }
    return self;
}

the background image does not change. I have also tried writing a log in the same method and it does not get logged at run time.

Can anyone help or give advice?

Thanks in advance! :)

Solution

  • I fixed this by following this tutorial, please note that you do not need to create 'tabBar1' as it says, just use self.tabBar: http://www.jondack.com/index.php/2010/12/16/customizing-the-background-of-a-uitabbarcontroller/