iOS change tabbar item color is safe?

Question

I am properly using following method to change tabbar icon color,

[tabBarController.tabBar setSelectedImageTintColor:[UIColor redColor]];

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Answer 1

It won't be rejected, but you'll have to set your deployment target to iOS 5 and people running iOS 4 won't be able to download and install your app.

To use this method only on iOS 5, and still allow the app to work on iOS 4 (with blue tabs) do this:

if ([UITabBar instancesRespondToSelector:@selector(setSelectedImageTintColor:)])
{
    [tabBarController.tabBar setSelectedImageTintColor:[UIColor redColor]];
}

This code is safe to run on iOS4.

Alternatively, see my answer to this question that explains how to fully customise the tab icon colours in a way that works on any iOS version: tabbar item image and selectedImage