如何检索数组中歌曲库的歌曲列表？

Question

以下代码检索iPhone中的所有歌曲，但我想检索数组中的所有歌曲。我的意思是我可以在阵列中拥有歌曲名称的数组吗？如果是的话，怎么做？

谢谢 -

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

 picker.delegate = self;
 picker.allowsPickingMultipleItems = YES;
 picker.prompt = NSLocalizedString (@"Add songs to play", "Prompt in media item picker");

 [[UIApplication sharedApplication] setStatusBarStyle: UIStatusBarStyleDefault animated: YES];

 [self presentModalViewController: picker animated: YES];

 [picker release];

Answer 1

请参阅iPod Library Access Programming Guide。在其中有一个示例向您显示与整个库匹配的媒体查询，该库允许您将其放入数组中：

MPMediaQuery *everything = [[MPMediaQuery alloc] init];

NSLog(@"Logging items from a generic query...");
NSArray *itemsFromGenericQuery = [everything items];
for (MPMediaItem *song in itemsFromGenericQuery) {
        NSString *songTitle = [song valueForProperty: MPMediaItemPropertyTitle];
        NSLog(@"%@", songTitle);
}