Appcompatv7 - v21 Navigation drawer not showing hamburger icon
You need to call
mDrawerToggle.syncState();
Make sure that you're importing the correct drawer toggle.
When I imported the v4 version I had the arrow (below).
import android.support.v4.app.ActionBarDrawerToggle;Changing it to this (below, v7) fixed my issue.
import android.support.v7.app.ActionBarDrawerToggle;
Make sure that you call
mDrawerToggle.syncState();
AFTER calling
getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setHomeButtonEnabled(true);