Clicking hamburger icon on Toolbar does not open Navigation Drawer

Question

I have a simple android.support.v7.widget.Toolbar and all I am trying to do is to open a NavigationDrawer by pressing the \"hamburger\" icon in the top left cor

Answer 1

Simply call function onOptionsItemSelected(MenuItem menuItem) of ActionBarDrawerToggle class on activity options menu managing function like below.

mDrawerToggle= new ActionBarDrawerToggle(activity, drawerLayout, R.string.nav_drawer_accessbility_drawer_open,
            R.string.nav_drawer_accessbility_drawer_close);


 @Override
public boolean onOptionsItemSelected(final android.view.MenuItem item) {
    navigation().getOptionsMenuInflater(this).closeSearchView();
    // The action bar home/up action should open or close the drawer.
    // ActionBarDrawerToggle will take care of this behavior.
    mDrawerToggle.onOptionsItemSelected(item);

    return super.onOptionsItemSelected(item);
}

OR

override onOptionsItemSelected of activity like below

public boolean onOptionsItemSelected(MenuItem item) {
    if (item != null && item.getItemId() == android.R.id.home) {
        toggle();

    }
    return super.onOptionsItemSelected(item);
}

 private void toggle() {
    if (mDrawerLayout.isDrawerVisible(GravityCompat.START)) {
        mDrawerLayout.closeDrawer(GravityCompat.START);
    } else {
        mDrawerLayout.openDrawer(GravityCompat.START);
    }
}