button的圖片和文字的位置關係

 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:@"位置測試" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor darkGrayColor] forState:UIControlStateNormal];

 

1.不設置button的UIEdgeInsetsMake，默認位置

 

2.設置圖片右距離                                                

    [btn setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 0, 20)];

3.設置圖片左距離                                                

[btn setImageEdgeInsets:UIEdgeInsetsMake(0, 20, 0, 0)];

 4.設置圖片下、右距離                                       

[btn setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 20, 20)];

 

5.圖片靠左                                                             

 CGRect imgFrame = btn.imageView.frame;
    
 [btn setImageEdgeInsets:UIEdgeInsetsMake(0, -imgFrame.origin.x, 0, imgFrame.origin.x)];

 

6.圖片靠左邊，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.圖片靠右，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)];