ios - setting image for UIBarButtonItem - image stretched

Question

When I try to use UIBarButtonItem's "initWithImage" to initialize a navigation bar custom image, it comes out washed-up and stretched against a black navigation bar. This is how I create it:

UIBarButtonItem *button = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"gear.png"] style:UIBarButtonItemStyleBordered target:self action:@selector(showSetting:)];

Here is what it looks like:

Any idea if it's a problem with the image? I got it from a set of icons I bought.

Answer 1

The best way to do this is to create a button, set its background image, and set its action. Then a UIBarButtonItem can be created using this button as the custom view. Here's my example code:

 UIButton *settingsView = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 61, 30)];
[settingsView addTarget:self action:@selector(SettingsClicked) forControlEvents:UIControlEventTouchUpInside];
[settingsView setBackgroundImage:[UIImage imageNamed:@"settings"] forState:UIControlStateNormal];
UIBarButtonItem *settingsButton = [[UIBarButtonItem alloc] initWithCustomView:settingsView];
[self.navigationItem setRightBarButtonItem:settingsButton];