iOS·UIButton如何文字在下图片在上

创建子类继承自UIButton,在layoutSubviews方法中改变文字和图片的位置就可以了,同理,稍作改变,可以写出文字在上图片在下.本文只给出文字在下图片在上的代码

 -(void)layoutSubviews {
     [super layoutSubviews];

     // image center
     CGPoint center;
     center.x = self.frame.size.width/;
     center.y = self.imageView.frame.size.height/;
     self.imageView.center = center;

     //text
     CGRect newFrame = [self titleLabel].frame;
     newFrame.origin.x = ;
     newFrame.origin.y = self.imageView.frame.size.height + ;
     newFrame.size.width = self.frame.size.width;

     self.titleLabel.frame = newFrame;
     self.titleLabel.textAlignment = NSTextAlignmentCenter;
 }

效果: