UITabBar customization

问题:

This looks like a long shot, but does anyone know of a way to:

1. Position a UITabBar on the top part of the screen
2. Change it's height

You are welcome to suggest private API methods

回答1:

you don't need private API, just try this in your applicationDidFinishLaunching method.

controller = [[UITabBarController alloc] initWithNibName:nil bundle:nil];

HeadlinesViewController *headlines = [[HeadlinesViewController alloc] init];
OpinionsViewController *opinions = [[OpinionsViewController alloc] init];

controller.viewControllers = [NSArray arrayWithObjects:headlines, opinions, nil];

    // set your position , width and height there
controller.tabBar.frame = CGRectMake(0, 20, 320, 50);
[window addSubview:controller.view ];
[window makeKeyAndVisible];

回答2:

I just wrote a category to change the tabbar's height

you can check this out UITabBar height in iOS 5

hope it will help you :)