Question

i have a .png image that i am trying to display as a UIBarButtonItem . Here is the sintax :

_gotoButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"btn_info.png"]
                                                   style:UIBarButtonItemStylePlain
                                                  target:self action:@selector(gotoAction)];

The thing is that when i try to display this image, in its place, there’s a white rectangular the size of the photo.

The odd thing is that when i try to load other images, it works.

My first thought was that the format is incorrect, but then i used an on-line convertor and it still doesn’t work. What could be the problem?

Answer 1

You might need to create a custom button with image on it and use the initWithCustomView: method of barbuttonitem..

    UIButton *bButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [bButton setImage:[UIImage imageNamed:@"btn_info.png"] forState:UIControlStateNormal];
    bButton.frame = CGRectMake(278,7, 32, 30);  
   [bButton addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];

    UIBarButtonItem *questionButton = [[UIBarButtonItem alloc]
                                       initWithCustomView:bButton];
    [questionButton setStyle:UIBarButtonItemStylePlain];