我在导航控制器中有一个带有图像的后退按钮,我想将文本设置在图像顶部。我试过这个,但它似乎没有出现:
UIImage *normalBackImage = [UIImage imageNamed:@"button_tl.png"];
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom]; backButton.bounds = CGRectMake(0, 0, normalBackImage.size.width, normalBackImage.size.height );
[backButton setImage:normalBackImage forState:UIControlStateNormal];
backButton.titleLabel.text = @"Back";
有谁知道如何做到这一点?谢谢!