UIButton *btn = [[UIButton alloc]initWithFrame:CGRectMake(200, 200, 150, 60)];
btn.layer.borderWidth = 1;
btn.layer.borderColor = [UIColor darkGrayColor].CGColor;
[self.view addSubview:btn];
[btn setImage:[UIImage imageNamed:@"img"] forState:UIControlStateNormal];
[btn setTitle:@"位置测试" forState:UIControlStateNormal];
[btn setTitleColor:[UIColor darkGrayColor] forState:UIControlStateNormal];
1.不设置button的UIEdgeInsetsMake,默认位置
2.设置图片右距离
[btn setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 0, 20)];
3.设置图片左距离
[btn setImageEdgeInsets:UIEdgeInsetsMake(0, 20, 0, 0)];
4.设置图片下、右距离
[btn setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 20, 20)];
5.图片靠左
CGRect imgFrame = btn.imageView.frame;
[btn setImageEdgeInsets:UIEdgeInsetsMake(0, -imgFrame.origin.x, 0, imgFrame.origin.x)];
6.图片靠左边,文字靠右
CGRect imgFrame = btn.imageView.frame;
CGRect titleFrame = btn.titleLabel.frame;
CGFloat btnW = btn.frame.size.width;
[btn setImageEdgeInsets:UIEdgeInsetsMake(0, -imgFrame.origin.x, 0, imgFrame.origin.x)];
[btn setTitleEdgeInsets:UIEdgeInsetsMake(0, btnW-titleFrame.origin.x-titleFrame.size.width, 0, -(btnW-titleFrame.origin.x-titleFrame.size.width))];
7.图片靠右,文字靠左
CGRect imgFrame = btn.imageView.frame;
CGRect titleFrame = btn.titleLabel.frame;
CGFloat btnW = btn.frame.size.width;
[btn setImageEdgeInsets:UIEdgeInsetsMake(0, (btnW-imgFrame.size.width-imgFrame.origin.x),0, -(btnW-imgFrame.size.width-imgFrame.origin.x))];
[btn setTitleEdgeInsets:UIEdgeInsetsMake(0, -titleFrame.origin.x, 0, titleFrame.origin.x)];