code: public static void showKeyboard(final View panelLayout, final View focusView) {
          final Activity activity = (Activity) panelLayout.getContext();
  
          KeyboardUtil.showKeyboard(focusView);
          if (isHandleByPlaceholder(activity)) {
              panelLayout.setVisibility(View.INVISIBLE);
          } else if (mIsInMultiWindowMode) {
              panelLayout.setVisibility(View.GONE);
          }
      }
docs: To show the keyboard(hide the panel automatically if the panel is showing) with
  non-layout-conflict.
  
  @param panelLayout the layout of panel.
  @param focusView   the view will be focused.