How to open Side bar on icon click in Android?

Question

I have implemented Hamburger bar with App toolbar and both of them are working fine. Following is the snapshot of toolbar and ha

Answer 1

Use Activity's onOptionsItemSelected(MenuItem menuItem) method:

First of all, keep the reference to your DrawerLayout in a class field:

DrawerLayout drawerLayout;

Somewhere in onCreate put this:

drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout)

And implement the method:

@Override
public boolean onOptionsItemSelected(MenuItem menuItem) {
    // if you want the default back/home hamburger menu item just put android.R.id.home instead
    if (menuItem.getItemId() == R.drawable.icon_navigation) { 
        drawerLayout.openDrawer(GravityCompat.END);
    }
    return super.onOptionsItemSelected(menuItem);
}