Question

怎么给UIBarButton添加一个图片

这是我的代码：UIBarButtonItem *settingsBtn= [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"icon_prefs.png"] style:UIBarButtonItemStylePlain target:self action:@selector(openSettings:)];[[self navigationItem] setLeftBarButtonItem:settingsBtn];[settingsBtn release];我能看到我的图片，但也能看到按钮的边框，我希望能把边框去掉，怎么实现？

Answer 1

UIImage* image= [UIImage imageNamed:@"some-image.png"];CGRect frame= CGRectMake(0, 0, image.size.width, image.size.height);UIButton* someButton= [[UIButton alloc] initWithFrame:frame];[someButton setBackgroundImage:image forState:UIControlStateNormal];[someButton setShowsTouchWhenHighlighted:YES];UIBarButtonItem* someBarButtonItem= [[UIBarButtonItem alloc] initWithCustomView:someButton];[self.navigationItem setRightBarButtonItem:someBarButtonItem];[someBarButtonItem release];[someButton release];

Answer 2

UIImage* image= [UIImage imageNamed:@"some-image.png"];CGRect frame= CGRectMake(0, 0, image.size.width, image.size.height);UIButton* someButton= [[UIButton alloc] initWithFrame:frame];[someButton setBackgroundImage:image forState:UIControlStateNormal];[someButton setShowsTouchWhenHighlighted:YES];UIBarButtonItem* someBarButtonItem= [[UIBarButtonItem alloc] initWithCustomView:someButton];[self.navigationItem setRightBarButtonItem:someBarButtonItem];[someBarButtonItem release];[someButton release]; 查看原帖>>