Android DrawerLayout doesn't show the right indicator icon

android, drawerlayout

Solution

You need to `syncState()` call of your `ActionBarDrawerToggle` object from `onPostCreate()`

@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    // Sync the toggle state after onRestoreInstanceState has occurred.
    mDrawerToggle.syncState();
}

Problem

I'm trying to use the new DrawerLayout for a list. The problem is though I set the drawer listener, the indicator on the actionbar is still the arrow icon instead of the 3-line icon which I intends to draw. The following is the OnCreate function: ``` public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_front_page); // Swiping Pager set up mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setAdapter(mSectionsPagerAdapter); // Sliding Drawer set up mHabitContract = new HabitsContract(this); mDrawerLayout = (DrawerLayout) findViewById(R.id.front_page_layout); mDrawerList = (ListView) findViewById(R.id.habit_list); mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); mDrawerList.setAdapter(new HabitAdapter(mHabitContract.GetHabitItems(), this)); // Fixme: Indicator image doesn't show up mDrawerToggle = new ActionBarDrawerToggle( this, /* host Activity */ mDrawerLayout, /* DrawerLayout object */ R.drawable.ic_navigation_drawer, /* nav drawer image to replace 'Up' caret */ R.string.drawer_open, /* "open drawer" description for accessibility */ R.string.drawer_close /* "close drawer" description for accessibility */ ) { public void onDrawerClosed(View view) { //getActionBar().setTitle(mTitle); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } public void onDrawerOpened(View drawerView) { //getActionBar().setTitle(mDrawerTitle); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } }; mDrawerLayout.setDrawerListener(mDrawerToggle); // Action Bar set up getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); getActionBar().setDisplayShowHomeEnabled(true); } ``` Can anyone help? Update: I found the problem. I added the onPostCreate function as follows, and now it's working. ``` protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Sync the toggle state after onRestoreInstanceState has occurred. mDrawerToggle.syncState(); } ```

Original source