UIAction Sheet 不能在 iPad 上工作，但在模拟器中工作

Question

我遇到了一个奇怪的问题。当我在模拟器上运行我的应用程序时，一切正常，但在设备上，一些代码仍然没有响应！我有一个 UIActionSheet 在模拟器上看起来不错，但在设备上它根本不起作用。它甚至可以在 iPod 上运行：

这是我显示操作表的代码：

 UIActionSheet *DeleteAction = [[UIActionSheet alloc] initWithTitle:@"Select    Delete Option" delegate:self cancelButtonTitle:Nil destructiveButtonTitle:nil   otherButtonTitles:nil, nil];
[DeleteAction addButtonWithTitle:@"A"];
[DeleteAction addButtonWithTitle:@"B"];
[DeleteAction showInView:self.view];

我正在将此委托用于操作表

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
if ([actionSheet buttonTitleAtIndex:buttonIndex] == @"A") {....}
if ([actionSheet buttonTitleAtIndex:buttonIndex] == @"B") {....}
}

Answer 1

我已使用此代码并且工作正常。让我知道它是否显示操作表

-(void)share {
    UIActionSheet *popupQuery = [[UIActionSheet alloc] initWithTitle:@"" delegate:self cancelButtonTitle:@"cancel" destructiveButtonTitle:nil otherButtonTitles:@"Email this Info",@"Tweet this Info",@"Share On Facebook", nil];
    popupQuery.actionSheetStyle = UIActionSheetStyleBlackOpaque;
    [popupQuery showInView:self.view];
    [popupQuery release];
}

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (buttonIndex == 0) {
        [self emailinfo];
    } 
    if (buttonIndex == 1) {
        [self tweetinfo];
    }
    if (buttonIndex == 2) {
        [self shareonfacebook];
    }
    if (buttonIndex == 3) {

    }
}

Answer 2

问题解决了。

 if ([[actionSheet buttonTitleAtIndex:buttonIndex]isEqualToString: @"A"]) {....}

这对我有用。