版本升级维护

MKRRadioManager/Classes/MKRRadioManager/MKRWIFIDeviceManager/MKRWIFIDeviceManager.m

@@ -353,18 +353,18 @@ static inline void wd_playControl_queue(void (^block)(void)){
     NSString *channelNumString = [NSString stringWithFormat:@"CHANNEL_UPDATE_%zd",song.songChannel];
     libupnp_SetAVTransportURI(
     device.avTransportUrl,
-    song.songUrl,
-    song.songName,
-    song.songArtist,
-    song.songAlbum,
-    song.songAlbumCover,
+    song.songUrl?:@"",
+    song.songName?:@"",
+    song.songArtist?:@"",
+    song.songAlbum?:@"",
+    song.songAlbumCover?:@"",
     @"0",
     @"null",
     @"null",
     timestamp,
     channelNumString,
     @"0",
-    userID,
+    userID?:@"",
     @(song.songID).stringValue,
     @(song.songFrom).stringValue,
     song.songAlbumID?:@""