UIButton上使用UIEdgeInsetsMake让title跟图片对齐
默认情况下,不设置的效果,都使居中现实,button为150*150
使用以下设置后:
[self setTitleEdgeInsets:UIEdgeInsetsMake( 0.0,-backGroundImag.size.width, 0.0,0.0)];
[self setImageEdgeInsets:UIEdgeInsetsMake(0.0, 0.0,0.0, -self.titleLabel.bounds.size.width)];
若要title在图片的上方,则位置相对于图片来说,向上移动-80
[self setTitleEdgeInsets:UIEdgeInsetsMake( -80.0,-backGroundImag.size.width, 0.0,0.0)];
[self setImageEdgeInsets:UIEdgeInsetsMake(0.0, 0.0,0.0, -self.titleLabel.bounds.size.width)];
效果如下:
综上所述,若单独设置一个title或者image在button中的位置,UIEdgeInsets是相对于button的frame来计算的(上,左,下,右,),如果是刚才所描述的情况,则title是相对于image的frame设置的,而image的位置是相对于titel的位置设置的
over!
以上转载自:http://blog.csdn.net/yanxiaoqing/article/details/7230660
实例源码:
UIImage * image = [[UIImage imageNamed:@"telIcon"] retain]; NSLog(@"%@>>",NSStringFromCGSize(image.size)); UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom]; [button setBackgroundColor:[UIColor yellowColor]]; [button setFrame:CGRectMake(80, 80, 150, 150)]; [button setTitle:@"测试位置" forState:UIControlStateNormal]; [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; [button.titleLabel setFont:[UIFont boldSystemFontOfSize:10.0]]; [button setTitleEdgeInsets:UIEdgeInsetsMake(0.0, -image.size.width, 0.0, 0.0)]; [button setImageEdgeInsets:UIEdgeInsetsMake(15.0, 0.0, 0.0, -button.titleLabel.bounds.size.width)]; NSLog(@"%@",NSStringFromUIEdgeInsets(button.titleEdgeInsets)); [button setImage:image forState:UIControlStateNormal]; [self.view addSubview:button];