[Android]fix multi video track bug(NMS-13863).

xgfd3 · xgfd3 · commit de3dc538aeb7 · 2023-06-27T15:55:14.000+08:00
diff --git a/Android/APIExample/app/src/main/java/io/agora/api/example/examples/advanced/MultiVideoSourceTracks.java b/Android/APIExample/app/src/main/java/io/agora/api/example/examples/advanced/MultiVideoSourceTracks.java
@@ -206,6 +206,7 @@ public void onClick(View v) {
                 joined = false;
                 join.setText(getString(R.string.join));
                 resetAllVideoLayout();
+                destroyAllPushingVideoTrack();
                 engine.leaveChannel();
                 engine.stopPreview();
                 myUid = 0;
