button 文字左对齐 《笔记篇》

//button 文字左对齐

butT.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft; 

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按钮图片与文字位置

[btn1 setTitleEdgeInsets:UIEdgeInsetsMake(0, -btn1.imageView.width, 0, btn1.imageView.width)];

[btn1 setImageEdgeInsets:UIEdgeInsetsMake(0, btn1.titleLabel.width, 0, -btn1.titleLabel.width)];