UIButton设置图像和标题

Question

我使用下面的代码来加载图像是在上，下半部分是按钮的标题，但只有图像，这是为什么？有什么好的建议，请告诉我们，谢谢

UIButton *myButton = [[UIButton alloc]initWithFrame:CGRectMake(160, 400, 73, 44)]; 

    [myButton setImage:[UIImage imageNamed:@"icon.png"] forState:UIControlStateNormal]; 
    [myButton setImageEdgeInsets: UIEdgeInsetsMake(0,0,22,0)]; 

    [myButton setTitle:@"test" forState:UIControlStateNormal]; 
    [myButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 
    [myButton setTitleEdgeInsets: UIEdgeInsetsMake(22,10,0,10)]; 

    [self.view addSubview:myButton]; 

Answer 1

就可以实现通过这种方式这样的效果也..尝试这个::

UIButton *myButton = [[UIButton alloc]initWithFrame:CGRectMake(160, 400, 73, 55)]; 
UIImage *img = [UIImage imageNamed:@"icon.png"]; 
UIImageView *imgVw = [[UIImageView alloc ] init]; 
imgVw.image = img; 
imgVw.frame = CGRectMake(myButton.frame.origin.x, myButton.frame.origin.y, myButton.frame.size.width, (myButton.frame.size.height-18)); 
[myButton setTitle:@"test" forState:UIControlStateNormal]; 
[myButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 
[myButton setTitleEdgeInsets: UIEdgeInsetsMake(34,10,0,10)]; 
[myButton addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside]; 
[self.view addSubview:imgVw];  
[self.view addSubview:myButton]; 

你的按键方法

-(void) btnClick:(id)sender 
{ 
    NSLog(@"working"); 
} 

你也可以从你的逻辑中实现::在这里我编辑了一些你的逻辑代码

UIButton *myButton = [[UIButton alloc]initWithFrame:CGRectMake(160, 400, 40, 35)]; 
[myButton setImage:[UIImage imageNamed:@"icon.png"] forState:UIControlStateNormal]; 
[myButton setImageEdgeInsets:UIEdgeInsetsMake(0,(myButton.frame.size.width-52),17,0)]; 
[myButton setTitle:@"test" forState:UIControlStateNormal]; 
[myButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 
[myButton setTitleEdgeInsets: UIEdgeInsetsMake(22,(myButton.frame.size.width-78),0,22)]; 
[self.view addSubview:myButton]; 

但是，在这种逻辑中，您必须将图像大小调整为23 * 23像素。根据你的图像尺寸UIEdgeInsetsMake的参数将被改变。

希望这会有所帮助。快乐的编码。