iPad 上的 MPMediaPickerController - 视图底部不接受触摸事件
我在 iPad 上使用此媒体选择器时遇到了一些问题...我可以在新的基于视图的应用程序中轻松地重现该问题。
1) 在 XCode 中为 iPad 创建新的基于视图的应用程序
2) 打开视图控制器的源代码并添加以下内容
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
MPMediaPickerController *picker = [[MPMediaPickerController alloc] initWithMediaTypes: MPMediaTypeAnyAudio];
picker.allowsPickingMultipleItems = NO;
picker.prompt = NSLocalizedString (@"Select a song to play", "Prompt in media item picker");
[self presentModalViewController:picker animated:YES];
[picker release];
}
就是这样。当我运行生成的应用程序时，我发现无法激活底部选项卡栏上的任何内容。我也无法选择表格视图中底部 4 个项目中的任何一个。
还有其他人遇到过这个问题并找到解决方法吗？
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另外，我尝试使用 UIModalPresentationStyleFormPage 模式来呈现选择器，但是虽然这很有效，但它最终会显示得很奇怪，并且对于我的应用程序来说是不可接受的。如果有人知道如何以 FormPage 样式正确居中这个东西，那也可以解决问题，至少对我来说是这样。
I'm having some trouble with this Media picker on iPad... I can easily recreate the problem in a fresh View-based application.
1) Create new View-Based application for iPad in XCode
2) Open the source for the View Controller and add the following
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
MPMediaPickerController *picker = [[MPMediaPickerController alloc] initWithMediaTypes: MPMediaTypeAnyAudio];
picker.allowsPickingMultipleItems = NO;
picker.prompt = NSLocalizedString (@"Select a song to play", "Prompt in media item picker");
[self presentModalViewController:picker animated:YES];
[picker release];
}
That's it. When I run the resulting application, I find I am unable to activate anything on the bottom tab bar. Neither am I able to select any of the bottom 4 items in the table view.
Has anyone else encountered this problem and found a way around it?
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Also, I tried presenting the picker using the UIModalPresentationStyleFormPage mode, but while that is functional, it ends up getting displayed oddly and won't be acceptable for my app. If anyone knows a way to properly center this thing in FormPage style, that would also solve the problem, at least for me.
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评论（2）
我花了几天时间在这个问题上，最后我放弃了，用的
不是那么大，但让我克服了这个问题。希望这有帮助
I spent a couple days on this and I finally gave up and used
not as big but gets me over this problem. Hope this helps
正确的方法可能是在弹出窗口中显示选择器，效果很好。尽管没有记录，但这可能是您应该做的；许多其他内置选择器视图控制器当然也是这种情况。
The correct approach is probably to present the picker in a popover, which works fine. Though not documented, this is probably what you're expected to do; it is certainly the case with many other built-in picker view controllers.