Change background image of UIToolbar

问题:

How can I change the background image of UIToolbar? I have been able to do this for navigation bar, but not UIToolbar. I do not want to change tintColor. I would like to change the whole image.

Thanks for your help.

回答1:

From Can I give a UIToolBar a custom background in my iPhone app?

Overriding the drawRect function and creating an implementation of the UIToolbar does the trick :)

   @implementation UIToolbar (CustomImage)
- (void)drawRect:(CGRect)rect {
    UIImage *image = [UIImage imageNamed: @"nm010400.png"];
    [image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
}
@end

回答2:

You could use the following code:

[myToolbar insertSubview:[[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"toolbar_40.png"]] autorelease] atIndex:0];

Fixed for Simulator 4.3.

回答3:

since iOS5 you can use the Appearance API:

[[UIToolbar appearance] setBackgroundImage:[UIImage imageNamed:@"someImage"] forToolbarPosition:UIToolbarPositionAny barMetrics:UIBarMetricsDefault];