Question

我可以看到歌曲列表并选择歌曲。但是我不能在按下“完成”时忽略视图控制器。我已经尝试过PresentViewController，因为不推荐使用Modal控制器。

- (IBAction) showMediaPicker: (id) sender {

    picker =
    [[MPMediaPickerController alloc] initWithMediaTypes: MPMediaTypeAnyAudio];

    picker.delegate                     = self;
    picker.allowsPickingMultipleItems   = YES;
    picker.prompt                       = NSLocalizedString (@"AddSongsPrompt", @"Prompt to user to choose some songs to play");

    [[UIApplication sharedApplication] setStatusBarStyle: UIStatusBarStyleDefault animated:YES];
    [self.picker removeFromParentViewController];
  [self presentViewController:picker animated:YES completion:nil];
   // [picker release];
}


// Responds to the user tapping Done after choosing music.
- (void) mediaPicker: (MPMediaPickerController *) mediaPicker didPickMediaItems: (MPMediaItemCollection *) mediaItemCollection {
    [self.picker removeFromParentViewController];
        [self dismissViewControllerAnimated:YES completion:nil];
   //
    [self.delegate updatePlayerQueueWithMediaCollection: mediaItemCollection];
   // [self.mediaItemCollectionTable reloadData];

   // [[UIApplication sharedApplication] setStatusBarStyle: UIStatusBarStyleBlackOpaque animated:YES];
}

我也尝试过RemovefromSuperview，似乎没什么用。我正在iPhone 6模拟器和带iOS 8.1.3的iPhone 5上进行测试。

任何???

Answer 1

我测试了您的代码并删除了对removeFromParentViewController:的一些电话，因为我认为他们并不是必需的。

- (IBAction)showMediaPicker:(id)sender {
    MPMediaPickerController *picker = [[MPMediaPickerController alloc] initWithMediaTypes:MPMediaTypeAnyAudio];

    picker.delegate = self;
    picker.allowsPickingMultipleItems = YES;
    picker.prompt = @"Some Prompt";

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

// mediaPicker:didPickMediaItems: will be called if at least one song was selected
- (void)mediaPicker:(MPMediaPickerController *)mediaPicker didPickMediaItems:(MPMediaItemCollection *)mediaItemCollection {
    [mediaPicker dismissViewControllerAnimated:YES completion:nil];
}

// mediaPickerDidCancel: will be called if no songs were selected
- (void)mediaPickerDidCancel:(MPMediaPickerController *)mediaPicker {
    [mediaPicker dismissViewControllerAnimated:YES completion:nil];
}

确保您的.h - 文件包含MPMediaPickerControllerDelegate协议。

无法在iOS 8.1.3上关闭MPMediaPickerController

1 个答案: