在Xcode中更改按钮标签的位置

Question

我只是想知道是否有人可以帮我改变我用代码制作的按钮的按钮标签的位置。

非常感谢，

克里斯

Answer 1

如果你指的UIButton，看的UIButton的titleEdgeInsets财产。

Answer 2

所以按钮标签是UILabel的一个实例，不是吗？通过设置相对于UIButton框架的框架来设置该标签的位置。

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
[button setFrame:CGRectMake(3, 20, w, h)]; 
UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 20, w, h)]; 
[titleLabel setText:@"TITLE"]; 
[button addSubview:titleLabel]; 
[self.view addSubview:button]; 
[titleLabel release]; 

我硬编码了按钮的x和y位置以及标签。您可以设置其他值并将标签放置在您想要的相应位置。

如果你想设置只有标签的文本位置，你可以做这样的：

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
    [button setFrame:CGRectMake(3, 20, w, h)]; 
    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, w, h)]; 
    [titleLabel setText:@"TITLE"]; 
    [titleLabel setTextAlignment:UITextAlignmentCenter];//(UITextAlignmentRight/UITextAlignmentLeft) 
    [button addSubview:titleLabel]; 
    [self.view addSubview:button]; 
    [titleLabel release]; 

希望它会帮助你。

Answer 3

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; 
    button.frame = CGRectMake(0,0,50,32); 
    [button setBackgroundImage:[UIImage imageNamed:@"btn_back.png"] forState:UIControlStateNormal]; 

    [button addTarget:self action:@selector(BackBtnClicked) forControlEvents:UIControlEventTouchUpInside]; 
    UIView *backButtonView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 32)]; 
    backButtonView.bounds = CGRectOffset(backButtonView.bounds, -1, -4); 
    [backButtonView addSubview:button]; 

    UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButtonView]; 
    //barButtonItem.imageInsets = UIEdgeInsetsMake(-6, 20, 30, 0); 

    [self.navigationItem setLeftBarButtonItem:barButtonItem];