我正在研究 SoundCloud iOS 教程，并一直在更改 API 调用以获取不同的信息。
但是，当我尝试对 URL
https://api.soundcloud.com/me/activities/tracks/affiliated.json这是程序的“Money”部分 - 获取数据、解析、创建一个新的视图控制器，该控制器具有一个数组作为响应的属性。
SCRequestResponseHandler handler;
handler = ^(NSURLResponse *response, NSData *data, NSError *error) {
NSError *jsonError = nil;
NSJSONSerialization *jsonResponse = [NSJSONSerialization
JSONObjectWithData:data
options:0
error:&jsonError];
if (!jsonError && [jsonResponse isKindOfClass:[NSArray class]]) {
UIStoryboard *sb = self.storyboard;
SCTTrackListViewController *trackListVC;
trackListVC = [sb instantiateViewControllerWithIdentifier:@"TLVC"];
trackListVC.tracks = (NSArray *)jsonResponse;
// Am I getting JSON back for tracks/affiliated.json ?
NSLog(@"json %@",(NSArray *)jsonResponse);
[self presentViewController:trackListVC
animated:YES
completion:nil];
}
};
NSString *resourceURL = @"https://api.soundcloud.com/me/activities/tracks/affiliated.json";
[SCRequest performMethod:SCRequestMethodGET
onResource:[NSURL URLWithString:resourceURL]
usingParameters:nil
withAccount:account
sendingProgressHandler:nil
responseHandler:handler];
}
如果我使用
NSString *resourceURL = @"https://api.soundcloud.com/me/tracks.json";NSString *resourceURL = @"https://api.soundcloud.com/me/favorites.json"我收到的
https://api.soundcloud.com/me/favorites.json[
{
"kind": "track",
"id": 112547469,
"created_at": "2013/09/26 06:50:06 +0000",
"user_id": 294371,
"duration": 4499751,
"commentable": true,
"state": "finished",
"original_content_size": 143977742,
"sharing": "public",
"tag_list": "Funk Disco",
"permalink": "the-boogie-down",
"streamable": true,
"embeddable_by": "all",
"downloadable": false,
"purchase_url": null,
"label_id": null,
"purchase_title": null,
"genre": "Boogie",
"title": "The Boogie Down",
"description": "1.\tWar - The World Is A Ghetto (Suonho Edit)\r\n\r\n2. \tWhiskey Barons - The Same Love\r\n\r\n3.\tRayko - Broadway\r\n\r\n4.\tNicholas - Talking About Love\r\n\r\n5.\tBen E. King - Supernatural Thing (Fingerman Edit)\r\n\r\n6.\tGazeebo - Scaredy Cat\r\n\r\n7.\tFingerman - Fat Like You Know\r\n\r\n8.\tWillie Beaver - Party Time (Karim Edit)\r\n\r\n9.\tDeadly Sins - I Can Feel It\r\n\r\n10.\tFingerman - Tootin\r\n\r\n11.\tRocco Raimundo - Give Me Your Love\r\n\r\n12.\tLuther Vandross - Never Too Much\r\n\r\n13.\tKool & The Gang - Get Down On It (Rocco Raimundo Edit)",
"label_name": "",
"release": "",
"track_type": "",
"key_signature": "",
"isrc": "",
"video_url": null,
"bpm": null,
"release_year": null,
"release_month": null,
"release_day": null,
"original_format": "mp3",
"license": "all-rights-reserved",
"uri": "https://api.soundcloud.com/tracks/112547469",
"user": {
"id": 294371,
"kind": "user",
"permalink": "web_d",
"username": "webd",
"uri": "https://api.soundcloud.com/users/294371",
"permalink_url": "http://soundcloud.com/web_d",
"avatar_url": "https://i1.sndcdn.com/avatars-000011907556-1k1cgw-large.jpg?3eddc42"
},
"user_playback_count": 1,
"user_favorite": true,
"permalink_url": "http://soundcloud.com/web_d/the-boogie-down",
"artwork_url": "https://i1.sndcdn.com/artworks-000058671332-jzz9uc-large.jpg?3eddc42",
"waveform_url": "https://w1.sndcdn.com/qA5zJCmDqO46_m.png",
"stream_url": "https://api.soundcloud.com/tracks/112547469/stream",
"playback_count": 69,
"download_count": 0,
"favoritings_count": 1,
"comment_count": 0,
"attachments_uri": "https://api.soundcloud.com/tracks/112547469/attachments"
},
虽然
https://api.soundcloud.com/me/activities/tracks/affiliated.json{
"collection": [
{
"type": "track",
"created_at": "2013/10/08 20:14:16 +0000",
"origin": {
"kind": "track",
"id": 114421587,
"created_at": "2013/10/08 18:20:21 +0000",
"user_id": 144598,
"duration": 340616,
"commentable": true,
"state": "finished",
"original_content_size": 13624479,
"sharing": "public",
"tag_list": "",
"permalink": "faden-away",
"streamable": true,
"embeddable_by": "all",
"downloadable": false,
"purchase_url": null,
"label_id": null,
"purchase_title": null,
"genre": "Funk",
"title": "Faden Away",
"description": "",
"label_name": "",
"release": "",
"track_type": "",
"key_signature": "",
"isrc": "",
"video_url": null,
"bpm": null,
"release_year": null,
"release_month": null,
"release_day": null,
"original_format": "mp3",
"license": "all-rights-reserved",
"uri": "https://api.soundcloud.com/tracks/114421587",
"user": {
"id": 144598,
"kind": "user",
"permalink": "stonesthrow",
"username": "Stones Throw Records",
"uri": "https://api.soundcloud.com/users/144598",
"permalink_url": "http://soundcloud.com/stonesthrow",
"avatar_url": "https://i1.sndcdn.com/avatars-000001771161-2x04bn-large.jpg?3eddc42"
},
"user_playback_count": 1,
"user_favorite": false,
"permalink_url": "http://soundcloud.com/stonesthrow/faden-away",
"artwork_url": "https://i1.sndcdn.com/artworks-000059640743-qtexag-large.jpg?3eddc42",
"waveform_url": "https://w1.sndcdn.com/NBZ15f1BZ4cV_m.png",
"stream_url": "https://api.soundcloud.com/tracks/114421587/stream",
"playback_count": 29756,
"download_count": 0,
"favoritings_count": 1587,
"comment_count": 138,
"attachments_uri": "https://api.soundcloud.com/tracks/114421587/attachments",
"sharing_note": {
"text": "",
"created_at": "2013/10/08 20:14:16 +0000"
}
},
"tags": "affiliated"
},
{
"type": "track",
"created_at": "2013/10/08 14:26:00 +0000",
"origin": {
"kind": "track",
"id": 112820793,
"created_at": "2013/09/27 21:39:16 +0000",
"user_id": 1520490,
"duration": 290926,
"commentable": true,
"state": "finished",
"original_content_size": 12579855,
"sharing": "public",
"tag_list": ""MUSEUM OF LOVE" "DFA RECORDS" "PAT MAHONEY" "LCD SOUNDSYSTEM" "THE JUAN MACLEAN" JEE DAY DFA",
"permalink": "museum-of-love-monotronic",
"streamable": true,
"embeddable_by": "all",
"downloadable": false,
"purchase_url": "https://itunes.apple.com/album/monotronic-single/id711563768",
"label_id": null,
"purchase_title": "DIGITAL SINGLE",
"genre": "",
"title": "Museum of Love - Monotronic",
"description": "Museum Of Love\n"Monotronic"\n\nDFA2390\n\nfirst single "Down South" available here: http://store.dfarecords.com/products/dfa2389",
"label_name": "DFA Records",
"release": "DFA2390",
"track_type": "original",
"key_signature": "",
"isrc": "",
"video_url": "http://www.youtube.com/watch?v=K2E6oK7tN5w",
"bpm": null,
"release_year": 2013,
"release_month": 10,
"release_day": 8,
"original_format": "mp3",
"license": "all-rights-reserved",
"uri": "https://api.soundcloud.com/tracks/112820793",
"user": {
"id": 1520490,
"kind": "user",
"permalink": "dfa-records",
"username": "DFA Records",
"uri": "https://api.soundcloud.com/users/1520490",
"permalink_url": "http://soundcloud.com/dfa-records",
"avatar_url": "https://i1.sndcdn.com/avatars-000002067008-el39h6-large.jpg?3eddc42"
},
"user_playback_count": 1,
"user_favorite": false,
"permalink_url": "http://soundcloud.com/dfa-records/museum-of-love-monotronic",
"artwork_url": "https://i1.sndcdn.com/artworks-000058798982-ogzv3j-large.jpg?3eddc42",
"waveform_url": "https://w1.sndcdn.com/0m0pwUhjvenc_m.png",
"stream_url": "https://api.soundcloud.com/tracks/112820793/stream",
"playback_count": 10047,
"download_count": 0,
"favoritings_count": 309,
"comment_count": 18,
"attachments_uri": "https://api.soundcloud.com/tracks/112820793/attachments",
"sharing_note": {
"text": "",
"created_at": "2013/09/27 21:39:16 +0000"
}
},
"tags": "affiliated"
},
我正在尝试将响应存储在 NSArray 中，我认为这可能是问题所在......有人可以指出我正确的方向来获取关联.json 的 JSON 吗？第二个 JSON 的响应是字典吗？我是否需要以不同的方式存储该响应？我以为我可以在 NSArray 中存储字典...
我什么也没得到的原因是由于这一行：
NSLog(@"json %@",(NSArray *)jsonResponse);jsonResponse(NSDictionary *)jsonResponse在我收到 JSON 数据后，这也是尝试不同方法来挖掘数据中嵌套信息的好方法。例如，我创建了一个字典来保存 jsonResponse。我可以通过多种方式获取我想要的密钥的信息：
dictionary[@"user"][@"avatar_url]avatar_urluser我也可以通过致电
[dictionary valueForKeyPath:@"user.avatar_url"];