Navigation Drawer opens to different fragments - android-fragments

Question

I am a beginner when it comes to Android. I have spent hours reading tutorials, watching videos, and combing through stackoverflow trying to figure this out. Even with all the online resources available , I still can't figure this out.
I want my list view always on the main screen, but when I swipe I want the navigation drawer to slide in and display a different fragment depending on which item in the list view has been selected. For example if the user selected 'account', when they slide from the right the account fragment would display.
I've left in 'navList' and 'nav2List' for testing, but I would like these to be fragments.
XML
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivity">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/bankMenu"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
</ListView>
</RelativeLayout>
<!-- Side navigation drawer UI -->
<ListView
android:id="#+id/navList"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="right"
android:background="#ffeeeeee"/>
<ListView
android:id="#+id/nav2List"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="right"
android:background="#ffeeeeee"/>
</android.support.v4.widget.DrawerLayout>
JAVA
public class MainActivity extends AppCompatActivity {
private ListView menu;
private ListView mDrawerList;
private ListView secondDrawerList;
private ArrayAdapter<String> mAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
menu = (ListView) findViewById(R.id.bankMenu);
mDrawerList = (ListView)findViewById(R.id.navList);
secondDrawerList = (ListView)findViewById(R.id.nav2List);
addBankingListItems(); // populate the banking items list
menu.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
final int position, long id) {
// ListView Clicked item index
int itemPosition = position;
// ListView Clicked item value
String itemValue = (String) menu.getItemAtPosition(position);
// Show Alert
Toast.makeText(getApplicationContext(),
"Position :" + itemPosition + " ListItem : " + itemValue, Toast.LENGTH_LONG)
.show();
if (itemPosition < 4) { // TESTING FUNCTIONALITY
addDrawerItems();
} else {
addSecondDrawerItems();
}
}
});
}
---EDIT---
This issue has been resolved.
In the xml file, i changed the two ListViews to a RelativeView.
<RelativeLayout
android:id="#+id/frame_to_be_replaced"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="right"
android:layout_below="#+id/topRL"
android:background="#ffeeeeee">
</RelativeLayout>
In the MainActivity, I created a fragment manager, then after my switch statement, i replaced the frame with the required one. Hope this can help someone, send me a pm for more info.
FragmentManager fragmentManager = getFragmentManager();
switch (itemPosition) {
case 0:
fragment = MyFrag1.newInstance("", ""); // fragment declared above
break;
case 1:
fragment = MyFrag2.newInstance("", "");
break;
case 2: etc....
fragmentManager.beginTransaction()
.replace(R.id.frame_to_be_replaced, fragment)
.commit();