How to close Drawer layout on BackPress in Android?

Question

I press the navigation drawer, then if I press back button, the app exits rather than returning to the previous activity. If I change the xml file, then this problem doesn\'

Answer 1

ListView mDrawerList;

@Override
public void onBackPressed() {
// TODO Auto-generated method stub

if(mDrawerLayout.isDrawerOpen(mDrawerList)){
    mDrawerLayout.closeDrawer(mDrawerList);
}else{
    super.onBackPressed();
}
}