Switch between Fragments with onNavigationItemSelected in new Navigation Drawer Activity template (Android Studio 1.4 onward)

Question

IntelliJ has made changes to the Navigation Drawer template Activity in Android Studio with fewer lines of code in the Activity class. The new Activity class looks like this

Answer 1

You should not change the DrawerLayout, you only need to add a frame in the "content_main.xml".

Follow the steps below:

1. open the "content_main.xml" file located in the "layout" folder.

2. use the code below:

3. go to the onNavigationItemSelected method:

   public boolean onNavigationItemSelected(MenuItem item) {
     int id = item.getItemId();
     Fragment fragment;
   
   if (id == R.id.nav_camara) {
       fragment = new YourFragment();
       FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
       ft.replace(R.id.mainFrame, fragment);
       ft.commit();
   }
   else if (id == R.id.nav_gallery) {
   
   }
   else if (id == R.id.nav_slideshow) {
   
   }
   else if (id == R.id.nav_manage) {
   
   } else if (id == R.id.nav_share) {
   
   } else if (id == R.id.nav_send) {
   
   }
   
   DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
   drawer.closeDrawer(GravityCompat.START);
   return true;
   }