UIButton文字和图片偏移

1 　　 UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
2     NSString *title = @"音乐";
3     UIImage  *image = [UIImage imageNamed:@"sp_music_list_sc"];
4     [button setTitle:title forState:UIControlStateNormal];
5     [button setImage:image forState:UIControlStateNormal];
6     button.frame = CGRectMake(20, 100, 100, 40);
7     button.backgroundColor = [UIColor grayColor];

1 　　CGSize titleSize = [title sizeWithFont:[UIFont systemFontOfSize:10.f]];
2     CGSize imageSize = image.size;   
3     button.titleEdgeInsets = UIEdgeInsetsMake(15, -imageSize.width, 0, 0);

1 button.imageEdgeInsets = UIEdgeInsetsMake(-15,titleSize.width+10,0,0);

1 button.contentEdgeInsets = UIEdgeInsetsMake(20, 0, 0, 0);

1 //对齐方式  设置content是title和image一起变化
2     button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;