How to open Navigation Drawer with no actionbar, open with just a button

Question

I have a navigation bar without any actionbar (I don\'t want an actionbar). I\'m trying to make it so that I have a button that can open the navigation drawer.

I kn

Answer 1

I have a simpler solution which uses isDrawerOpen() of DrawerLayout.

The code below closes or opens the navigation drawer based on the drawer's current state (Opened/Closed)

Button hamMenu = findViewById(R.id.ham_menu);
hamMenu.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        DrawerLayout navDrawer = findViewById(R.id.drawer_layout);
        // If navigation drawer is not open yet, open it else close it.
        if(!navDrawer.isDrawerOpen(GravityCompat.START)) navDrawer.openDrawer(Gravity.START);
        else navDrawer.closeDrawer(Gravity.END);
    }
});