How do I make a UIBarButtonItem 'glow'?

In the Maps app, when you press the tracking button in the lower left hand corner, it glows开发者_C百科 showing that it's pressed. This makes it behave like a radio button, and it will un-glow once you move the map. Is there a simple way to but a button into the pressed state?

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I believe you are looking for the showsTouchWhenHighlighted property for the UIButton class. Give this a try.

myButton.showsTouchWhenHighlighted = YES;

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Set its style to UIBarButtonItemStyleDone.

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You could make its customview a custom button like this:

`

UIImage *image = [UIImage imageNamed:@"someimage"];
UIImage *imageHL = [UIImage imageNamed:@"someimage_selected"];
button = [UIButton buttonWithType:UIButtonTypeCustom];

[button setImage:image forState:UIControlStateNormal];
[button setImage:imageHL forState:UIControlStateHighlighted];
[button addTarget:self action:@selector(doStuff:) forControlEvents:UIControlEventTouchUpInside];    
myBarButtonItem.customView = button;

`

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Use UIBarButtonItemStylePlain.

UIBarButtonItemStylePlain
Glows when tapped.

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If you have a UIBarButtonItem with image/text or UIBarButtonSystemItem, then use UIBarButtonItemStylePlain

barButton.style = UIBarButtonItemStylePlain;

If you have a UIBarButtonItem with a custom view, then, for each UIButton should add the following code:

uiButton.showsTouchWhenHighlighted = YES;