本文介绍了UIButton:为选中状态设置图片的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我为按钮的状态 Normal、Highlighted 和 Selected 设置了图像，但是当按钮处于选定状态并按下/突出显示它时，我没有看到突出显示的图像，而只是看到灰色的图像.选择按钮时是否可以设置图像为高亮状态?
I set an images for button's states Normal,Highlighted and Selected, but when the button in selected state and I press/highlight it I didn't see my highlighted image but just grayed picture. Is it possible to set an image for highlighted state when the button selected?
我的代码:
[button setImage:[UIImage imageNamed:@"normal.png"] forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:@"pressed.png"] forState:UIControlStateHighlighted];
[button setImage:[UIImage imageNamed:@"checked.png"] forState:UIControlStateSelected];
当我这样做时:
[button setSelected:YES];
然后按下按钮，pressed.png"图像不会被选中.
and press the button, the "pressed.png" image doesn't select.
推荐答案
我找到了解决办法:需要添加添加行
I found the solution: need to add addition line
[button setImage:[UIImage imageNamed:@"pressed.png"] forState:UIControlStateSelected | UIControlStateHighlighted];
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