"java.lang.IllegalStateException: not connected to MediaScannerService" when adding a file to the media library in Android -

i'm receiving java.lang.illegalstateexception: not connected mediascannerservice exception in crash reports app.

they not many, don’t know what’s wrong in code, because on phone/emulator works ok. i’m using method call mediascanner adapted question/answer @ how , set (change) id3 tag (metadata) of audio files?

the method:

public static void scanmedia(context context, final file[] file, final string[] mime) {     msc = new mediascannerconnection(context, new mediascannerconnectionclient() {         public void onscancompleted(string path, uri uri) {             utils.logger("d", "scanned " + path + ":", debug_tag);             utils.logger("d", "-> uri: " + uri, debug_tag);             msc.disconnect();           }         public void onmediascannerconnected() {             (int = 0; < file.length; i++) {                 msc.scanfile(file[i].getabsolutepath(), mime[i]);             }         }     });     msc.connect(); } 

my calls:

utils.scanmedia(getapplicationcontext(),                  new file[] {myvideo},                  new string[] {"video/*"}); 

or

utils.scanmedia(getapplicationcontext(),                  new file[] {myothervideo, myaudio},                  new string[] {"video/*", "audio/*"});` 

how can avoid exceptions?

it's race condition. iterating on multiple files in onmediascannerconnected() method. disconnect() connection use add files.

say have 3 files. file 1 starts , file 2 can call scanfile() without problems well. before call scanfile() third file, first 1 has been completed. android calls callback method onscancompleted(). , here calling disconnect() closing connection want use third file. third scanfile()call connection no longer valid!

this might happen, or not. depending on thread runs how fast , gets processing time in particular order. exceptions every , then.

i provide pull request fix ytdownloader if like.