Error In Navigation Drawer
Somehow I am getting a null pointer Exception in this method @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); acti
Solution 1:
I found the problem actually I was doing this
actionBarToggle = new ActionBarDrawerToggle(this, drawerLayout,
R.drawable.ic_drawer, R.string.drawerOpen, R.string.drawerClose) {
publicvoidonDrawerClosed(View view) {
getSupportActionBar().setTitle("Close");
ActivityCompat.invalidateOptionsMenu(activity);
}
publicvoidonDrawerOpened(View main) {
getSupportActionBar().setTitle("Open");
ActivityCompat.invalidateOptionsMenu(activity);
}
};
drawerLayout.setDrawerListener(actionBarToggle);
drawerLayout = (DrawerLayout) findViewById(R.id.navigationDrawer);//This should be before actionBarToggle
So I was intailizing the drawerLayout after using it in actionBarToggle.
Solution 2:
Follow the instructions here.
http://developer.android.com/training/implementing-navigation/nav-drawer.html
Your actionBarToggle object is null. Create the ActionBarDrawerToggle
and assign it to your variable before you try to use it.
Solution 3:
I also had NullPointerException. That was a silly mistake, I was doing:
drawerToggle = newActionBarDrawerToggle(this,
drawerLayout,
R.drawable.ic_drawer,
1,
2){ ... }
I hardcoded those two strings for accesibility by saying 1,2, because I found those strings unimportant. As far as I was running Android 2.3-4.3 everything was ok, but on 4.4 I was getting an exception. Solution is simple: just create those two strings in values/strings.xml
Sorry for my english :)
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