按钮在 IOS5 中不起作用

发布于 2024-12-10 08:29:32 字数 462 浏览 1 评论 0原文

我在 ios 4.3 上构建了一个应用程序，它工作正常，但是当我在新 ios 上运行它时，后退按钮不起作用。这是我转到下一个 xib 的代码：

-(IBAction)Selection3Page:(id)sender;{ //显示下一个视图 Selection3Page * nvc = [[Selection3Page alloc] initWithNibName:nil bundle:nil]; [自我呈现ModalViewController：nvc动画：否]； [NVC 发布]； }

这是返回第一个 xib 的代码：

-(IBAction)done:(id)sender{
[self.parentViewController dismissModalViewControllerAnimated:NO];

}

请帮忙！

原文

i built an app on ios 4.3 and it worked fine but when i run it on the new ios the back buttons dont work. Heres my code to go to the next xib:

-(IBAction)Selection3Page:(id)sender;{ //show next view Selection3Page * nvc = [[Selection3Page alloc] initWithNibName:nil bundle:nil]; [self presentModalViewController:nvc animated:NO]; [nvc release]; }

and this is the code to return back to the first xib:

-(IBAction)done:(id)sender{
[self.parentViewController dismissModalViewControllerAnimated:NO];

}

please help!!

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莫多说 2024-12-17 08:29:32

iOS 5 中用于关闭模态视图的 API 发生了一些变化。请尝试以下操作：

if ([self respondsToSelector:@selector(dismissViewControllerAnimated:completion:)])
{
    NSLog(@"didTouchDoneButton 5.x");
    [self dismissViewControllerAnimated:YES completion:nil];
}
else
{
    NSLog(@"didTouchDoneButton 4.x");
    [self dismissModalViewControllerAnimated:YES];
}

The API for dismissing modal views was changed somewhat in iOS 5. Try this instead:

if ([self respondsToSelector:@selector(dismissViewControllerAnimated:completion:)])
{
    NSLog(@"didTouchDoneButton 5.x");
    [self dismissViewControllerAnimated:YES completion:nil];
}
else
{
    NSLog(@"didTouchDoneButton 4.x");
    [self dismissModalViewControllerAnimated:YES];
}

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