android: changing option menu items programmatically

Question

Is it possible to change the option menu items programmatically? Can anyone provide me with an example please?

Also, I want to disable certain items, so that they do

Answer 1

Try this code:

@Override
public boolean onPrepareOptionsMenu(Menu menu) {
    this.menu=menu;
    updateMenuItems(menu);
    return super.onPrepareOptionsMenu(menu);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.document_list_activity_actions, menu);
    return super.onCreateOptionsMenu(menu);
}


@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle presses on the action bar items
    if (item.getItemId() == android.R.id.home) {
        onHomeButtonPresssed();
    }else if (item.getItemId() == R.id.action_delete) {
        useCheckBoxAdapter=false;
        deleteDocuments();
    } else if (item.getItemId() == R.id.share) {
        useCheckBoxAdapter=false;
        shareDocuments();
    } else if (item.getItemId() == R.id.action_tick) {
        useCheckBoxAdapter=true;
        onShowCheckboxes();
    }
    updateMenuItems(menu);
    return true;
}

private void updateMenuItems(Menu menu){
    if (useCheckBoxAdapter && menu != null) {
        menu.findItem(R.id.action_delete).setVisible(true);
        menu.findItem(R.id.share).setVisible(true);
        menu.findItem(R.id.action_tick).setVisible(false);
    } else {
        menu.findItem(R.id.action_delete).setVisible(false);
        menu.findItem(R.id.share).setVisible(false);
        menu.findItem(R.id.action_tick).setVisible(true);
    }
    invalidateOptionsMenu();
}