改变iPad中UIAlertView的宽度 [英] change width of UIAlertView in iPad

问题描述

有没有办法在iPhone或iPad中更改UIAlertView的框架。我尝试在以下委托方法中更改框架 - （void）willPresentAlertView：（UIAlertView *）alertView;

Is there any way to change the frame of the UIAlertView in iPhone or iPad. I tried changing the frame in the following delegate method- (void)willPresentAlertView:(UIAlertView *)alertView;

但即便如此，Alertview的宽度仍保持不变。我认为iPad中的一个小型Alertview没有意义。我想必须有办法实现它，至少在iPad中。

but even then the width of the Alertview remained unchanged. And I think a small Alertview in iPad will not make sense. And I guess there must be a way to achieve it, at least in iPad.

谢谢，
krishnan。

Thanks, krishnan.

推荐答案

嗯，这段代码工作正常（除非你试图减小大小 - 在这种情况下你可能会得到一些糟糕的渲染）：

Hmm, this code works fine (except, when you are trying to decrease size - cause in this case you can get some bad rendering):

- (void)willPresentAlertView:(UIAlertView *)alertView {
    alertView.frame = CGRectMake(x, y, width, height);
}

也许，你忘了设置 UIAlertView 的委托与 someAlertView.delegate = self;

Maybe, you forgot to set UIAlertView's delegate with something like someAlertView.delegate = self;

 

UPDATE ↓

codepart：

- (IBAction)go:(id)sender {
    UIAlertView *alert = [[[UIAlertView alloc] initWithTitle:@"Title" message:@"Message" delegate:self cancelButtonTitle:nil
        otherButtonTitles:nil] autorelease];
    alert.delegate = self;
    [alert show];
}

- (void)willPresentAlertView:(UIAlertView *)alertView {
    alertView.frame = CGRectMake(5.f, 1.f, 100.f, 200.f);
}

结果（在我的iPod上）： http://dl.dropbox.com/u/6455784/alert_view_frame.png

Result (on my iPod): http://dl.dropbox.com/u/6455784/alert_view_frame.png

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