缺少 MPMediaPickerController 完成按钮

Question

我在 MPMediaPickerController 中遇到完成按钮问题。

Device: iPod Touch

iOS :9.2   

 MPMediaPickerController  *picker = [[MPMediaPickerController alloc] initWithMediaTypes:MPMediaTypeMusic];


picker.delegate                     = self;
picker.allowsPickingMultipleItems   = YES;
picker.showsCloudItems = NO;
picker.prompt                       = NSLocalizedString (@"Add songs to play", "Prompt in media item picker");

// The media item picker uses the default UI style, so it needs a default-style
//      status bar to match it visually
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent animated:YES];

[self presentViewController:picker animated:YES completion:nil];

选择器正在显示，但选择器中缺少完成按钮。如果我点击我们之前完成按钮的地方，选择器就会消失。感谢您花时间阅读我的问题。任何 ideas/suggestion 都可能非常有帮助。

Answer 1

因此，问题是通过 UIAppearance 更改了按钮的外观。

对于遇到相同问题的人，请检查项目中是否存在 appearance、appearanceWhenContainedIn: 或 appearanceForTraitCollection:。

缺少 MPMediaPickerController 完成按钮

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