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我正在實現基於MPMediaPickerController的應用程序。在那當我試圖打開音樂應用程序時,它需要帶我到「播放列表」選項卡,而不是顯示「音樂」選項卡。爲此,我使用選定的索引屬性來製作它。但仍然無效。以下是我的代碼,請問你們能否幫助我,這很緊急。MPMediaPickerController選擇的索引不起作用
MPMediaPickerController *picker =
[[MPMediaPickerController alloc] initWithMediaTypes: MPMediaTypeMusic];
picker.delegate = self;
picker.allowsPickingMultipleItems = YES;
picker.prompt = NSLocalizedString (@"Select any song from the list", @"Prompt to user to choose some songs to play");
// The media item picker uses the default UI style, so it needs a default-style
// status bar to match it visually
[[UIApplication sharedApplication] setStatusBarStyle: UIStatusBarStyleDefault animated: YES];
picker.tabBarController.selectedIndex=1;
[picker.tabBarController.selectedViewController viewDidAppear:YES];
[self presentModalViewController: picker animated: YES];
[picker release];
謝謝, 錢德拉。