創建子類繼承自UIButton,在layoutSubviews方法中改變文字和圖片的位置就可以了,同理,稍作改變,可以寫出文字在上圖片在下.本文只給出文字在下圖片在上的代碼
1 -(void)layoutSubviews { 2 [super layoutSubviews]; 3 4 // image center 5 CGPoint center; 6 center.x = self.frame.size.width/2; 7 center.y = self.imageView.frame.size.height/2; 8 self.imageView.center = center; 9 10 //text 11 CGRect newFrame = [self titleLabel].frame; 12 newFrame.origin.x = 0; 13 newFrame.origin.y = self.imageView.frame.size.height + 5; 14 newFrame.size.width = self.frame.size.width; 15 16 self.titleLabel.frame = newFrame; 17 self.titleLabel.textAlignment = NSTextAlignmentCenter; 18 }
效果:
