uibutton去掉点击后背景有阴影的方法

小程序：扫一扫查出行
【扫一扫了解最新限行尾号】
复制小程序

1，将normal和highlight两种方式都设置上图片即可

UIButton *goback = [[UIButton alloc]initWithFrame:CGRectMake(5.0f, 5.0f, 32.0f, 32.0f)];
goback.backgroundColor = [UIColor clearColor];
[goback setBackgroundImage:[UIImage imageNamed:@"tabbargobackbtn.png"] forState:UIControlStateNormal];
[goback setBackgroundImage:[UIImage imageNamed:@"tabbargobackbtn.png"] forState:UIControlStateHighlighted];

2，设置button的 goback.adjustsImageWhenHighlighted = NO; 即可