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有两种方式在代码中去播放从ipod列表中选取的歌曲

1， 使用AVAudioPlayer, 代码如下：

先弹出选曲界面

    MPMediaPickerController *mpPickerController = [[MPMediaPickerControlleralloc] initWithMediaTypes:MPMediaTypeAnyAudio];

    [selfpresentViewController:mpPickerController animated:YEScompletion:^{}];

    mpPickerController.delegate =self;

    [mpPickerControllerrelease];

然后实现它的代理方法

- (void)mediaPicker:(MPMediaPickerController *)mediaPicker didPickMediaItems:(MPMediaItemCollection *)mediaItemCollection {

    NSLog(@"select mediaItemCollection.items=%@, representativeItem=%@", mediaItemCollection.items, [mediaItemCollection representativeItem]);

// 选到的歌曲

   MPMediaItem *selectedSong = [[mediaItemCollectionitems] objectAtIndex:0];

    NSURL *songURL = [selectedSongvalueForProperty:MPMediaItemPropertyAssetURL]; // 歌曲的URL通常为ipod-library://item/item.mp3?id=-7350999950458851124

    NSString *songTitle = [selectedSongvalueForProperty:MPMediaItemPropertyTitle];  // 歌曲的Title

   NSString *songURLString = [songURL absoluteString]; // 转换为NSString

    NSLog(@"songURL=%@, songURLString=%@, songTitle=%@", songURL, songURLString, songTitle);

// 进入到使用AVAudioPlayer的界面

    [selfdismissViewControllerAnimated:YEScompletion:^{

        GameShowsViewController *gameShowsVC = [[GameShowsViewControlleralloc] initWithNibName:[NSStringstringWithFormat:@"%@", (ISIPAD?@"GameShowsView_IPAD":@"GameShowsView")]bundle:nil];

        gameShowsVC.selectedMusicInfo = [NSDictionarydictionaryWithObjectsAndKeys:

                                         songURLString,@"SongName",

                                        @"NoPic.png", @"Picture",

                                        @"Heqin", @"Player",

                                         songTitle,@"SongTitle",

                                        nil];

        [self.navigationControllerpushViewController:gameShowsVC animated:NO];

        [gameShowsVCrelease];

    }];

}

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