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我有一个要求，我需要在应用程序中搜索和播放歌曲，所以我在我的应用程序中使用iTunes Search API来播放歌曲，但它无法播放。

请从 iTunes 搜索 API 中找到请求和响应参数。

Request : https://itunes.apple.com/search?term=A+R+Rahman&entity=song&country=in&limit=1

Response : 

    {
        resultCount = 1;
        results =     (
                    {
                artistId = 3249567;
                artistName = "A. R. Rahman, Javed Ali & Mohit Chauhan";
                artistViewUrl = "https://itunes.apple.com/in/artist/a-r-rahman/id3249567?uo=4";
                collectionId = 1123241840;
                collectionViewUrl = "https://itunes.apple.com/in/album/kun-faya-kun/id1123241840?i=1123241921&uo=4";
                country = IND;
                currency = INR;
                discCount = 1;
                discNumber = 1;
                isStreamable = 1;
                kind = song;
                previewUrl = "http://audio.itunes.apple.com/apple-assets-us-std-000001/AudioPreview20/v4/00/a6/82/00a68217-deef-d90c-d63b-1fab15acb840/mzaf_8630030048415899809.plus.aac.p.m4a";
                primaryGenreName = Bollywood;
                releaseDate = "2011-09-30T07:00:00Z";
                trackCensoredName = "Kun Faya Kun";
                trackCount = 14;
                trackExplicitness = notExplicit;
                trackId = 1123241921;
                trackName = "Kun Faya Kun";
                trackNumber = 4;
                trackPrice = 15;
                trackTimeMillis = 470500;
                trackViewUrl = "https://itunes.apple.com/in/album/kun-faya-kun/id1123241840?i=1123241921&uo=4";
                wrapperType = track;
            }
        );
    }

我正在使用trackId并将其传递给setQueueWithStoreIDs.MPMusicPlayerController

注意：我也尝试过previewUrl、trackViewUrl、 collectionId和collectionViewUrl但没有成功。

我还完成了检查设备播放Apple Music歌曲的授权和功能的过程。

请找到下面的完整代码。

[SKCloudServiceController requestAuthorization:^(SKCloudServiceAuthorizationStatus status) {

        if(status == SKCloudServiceAuthorizationStatusAuthorized) {

            SKCloudServiceController *cloudServiceController = [[SKCloudServiceController alloc] init];

            [cloudServiceController requestCapabilitiesWithCompletionHandler:^(SKCloudServiceCapability capabilities, NSError * _Nullable error) {

                if (capabilities == SKCloudServiceCapabilityMusicCatalogPlayback) {

                    NSLog(@"You can play the song");
                    [[MPMusicPlayerController systemMusicPlayer] setQueueWithStoreIDs:@[@"1123241921"]];
                    [[MPMusicPlayerController systemMusicPlayer] prepareToPlayWithCompletionHandler:^(NSError * _Nullable error) {

                        NSLog(@"Error : %@",error.description);
                    }];];
                }

                else {
                    NSLog(@"You did not have the capability for playing the Apple Music");
                }
            }];
        }

        else {
            NSLog(@"You do not authorize for Apple Music");
        }
    }];

播放歌曲时出错。

错误域=MPErrorDomain 代码=4“（空）”

请指导我需要什么实施以及这是否可行。

从下面的链接下载应用程序的源代码。 https://www.dropbox.com/s/2n5110qmaqpvkdf/TestAppleMusic.zip?dl=0

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