如何创建自定义UIButton(带图像)但仍然使用setTitle？

Question

我尝试用UIButtonTypeCustom创建一个UIButton.然后使用以下方法调整它的外观

[sendButton setImage:[UIImage imageNamed:@"sendButtonOff.png"] forState:UIControlStateNormal];
[sendButton setImage:[UIImage imageNamed:@"sendButtonOn.png"] forState:UIControlStateHighlighted];      
[sendButton setImage:[UIImage imageNamed:@"sendButtonDisabled.png"] forState:UIControlStateDisabled];

但问题是,一旦你开始将UIImages设置为状态,setTitle就不再有效了.我认为setTitle只适用于非UIButtonTypeCustom？这意味着我要么必须将文本放入图像本身(不是很健壮),要么将其子类化并在视图中添加UILabel？听起来很多工作:(任何想法？

Answer 1

如果您希望标题显示在图像上,请尝试使用:

[sendButton setBackgroundImage:[UIImage imageNamed:@"sendButtonOff.png"] forState:UIControlStateNormal];
[sendButton setBackgroundImage:[UIImage imageNamed:@"sendButtonOn.png"] forState:UIControlStateHighlighted];      
[sendButton setBackgroundImage:[UIImage imageNamed:@"sendButtonDisabled.png"] forState:UIControlStateDisabled];