app/src/main/java/ai/pai/lensman/session/SessionActivity.java

@@ -45,6 +45,8 @@ public class SessionActivity extends BaseActivity implements SessionContract.Vie

                     private SessionContract.Presenter presenter;
              

                     private static final int JOIN_REQUEST_CODE = 3002;
              

                 
              

                +    private boolean isBackground;
              

                +
              

                     private ItemTouchHelper.Callback mCallback = new ItemTouchHelper.SimpleCallback(ItemTouchHelper.UP | ItemTouchHelper.DOWN, ItemTouchHelper.RIGHT|ItemTouchHelper.LEFT) {
              

                 
              

                         @Override
              
@@ -106,6 +108,18 @@ public class SessionActivity extends BaseActivity implements SessionContract.Vie

                     }
              

                 
              

                     @Override
              

                +    protected void onResume() {
              

                +        super.onResume();
              

                +        isBackground = false;
              

                +    }
              

                +
              

                +    @Override
              

                +    protected void onPause() {
              

                +        super.onPause();
              

                +        isBackground = true;
              

                +    }
              

                +
              

                +    @Override
              

                     protected void onDestroy() {
              

                         super.onDestroy();
              

                         presenter.stop();
              
@@ -179,6 +193,9 @@ public class SessionActivity extends BaseActivity implements SessionContract.Vie

                 
              

                     @Override
              

                     public void showToast(final String toast) {
              

                +        if(isBackground){
              

                +            return;
              

                +        }
              

                         if(photosRecyclerView!=null){
              

                             photosRecyclerView.post(new Runnable() {
              

                                 @Override