CODEWITHSUNDEEP
androidnavigation-drawer
user2971688
user2971688

Reputation: 123

Open navigation drawer by clicking the app icon

I want to let my user open the navigation drawer by clicking the app icon. This is my code:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_add);
    // Show the Up button in the action bar.

    DrawerLayout mDrawerLayout = (DrawerLayout) findViewById(R.id.left_drawer);
    ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(
            this,                  /* host Activity */
            mDrawerLayout, /* DrawerLayout object */
           R.drawable.ic_drawer,  /* nav drawer icon to replace 'Up' caret */
            R.string.drawer_open,  /* "open drawer" description */
            R.string.drawer_close  /* "close drawer" description */
            ) {

        /** Called when a drawer has settled in a completely closed state. */
        public void onDrawerClosed(View view) {
            getActionBar().setTitle(R.string.title_activity_add);
        }

        /** Called when a drawer has settled in a completely open state. */
        public void onDrawerOpened(View drawerView) {
            getActionBar().setTitle(R.string.drawer_title);
        }
    };


    mDrawerLayout.setDrawerListener(mDrawerToggle);
    getActionBar().setDisplayHomeAsUpEnabled(true); // Pressing the app icon in the action bar will navigate to the parent activity.
    getActionBar().setHomeButtonEnabled(true);

}

But when I tap the icon, nothing happens. Where is the problem.

Upvotes: 10

Views: 14468

Answers (2)

moallemi
moallemi

Reputation: 2467

You should override onOptionsItemSelected of the activity and use this:

@Override
    public boolean onOptionsItemSelected(MenuItem item) {

        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        return super.onOptionsItemSelected(item);
}

Upvotes: 17

Steve Benett
Steve Benett

Reputation: 12933

Have a look here for an example of the docs. You need additional code in

  • onPostCreate() to sync your Drawer state
  • onOptionsItemSelected() to handle the touch event of the App icon

  • onConfigurationChanged() to provide the new configuration to the drawer

    public class YourActivity extends Activity {

public ActionBarDrawerToggle mDrawerToggle;

@Override
protected void onCreate(Bundle savedInstanceState) {
    ...
    mDrawerToggle = new ActionBarDrawerToggle();
    ...
}

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

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    mDrawerToggle.onConfigurationChanged(newConfig);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
     // Pass the event to ActionBarDrawerToggle, if it returns
     // true, then it has handled the app icon touch event
     if (mDrawerToggle.onOptionsItemSelected(item)) {
         return true;
     }
     // Handle your other action bar items...

     return super.onOptionsItemSelected(item);
}

}

Upvotes: 22

Related Questions