java - Android: Inflate menu (add items to action bar) only on click of a button

Question

I am trying to inflate a menu only onclick of a button in android. How do i achieve it without creating it automatically by calling onCreateOptionsMenu. I want the menu to appear only after button is click.

Answer 1

First add this icon in you action R.menu... file and set the visibility as false.

Have a boolean instance variable in our java file.

private boolean isTickVisible = false;

Then you need to override OnPrepareOptions menu like below and set the visibility of the tick menu.

 @Override
    public void onPrepareOptionsMenu(Menu menu) {
        super.onPrepareOptionsMenu(menu);

        MenuItem someMenuItem = menu.findItem(R.id.tick_menu_item);
        someMenuItem.setVisible(isTickVisible);
    }

Finally onClick event of your button do the following :

isTickVisible = true;
invalidateOptionsMenu(); //this will redraw your menu.