Fragment Drawerlayout

I am new to android and I have implemented android studios drawerlayout. I designed the main page of my app in content_main. But now I want to switch pages by using the DrawerLayou

Solution 1:

Put this layout in your activity_main

<RelativeLayout
                android:id="@+id/fragment_container"
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

and to add different fragment

publicvoidaddYourFragment(){
                YourFragmentmyFragment=newYourFragment();
                FragmentManagerfragmentManager=this.getSupportFragmentManager();
                FragmentTransactionfragmentTransaction= fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.fragment_container, myFragment, tagToUniqlyIdentifiedFramgent);
                fragmentTransaction.addToBackStack(tagToUniqlyIdentifiedFramgent);
                fragmentTransaction.commit();                       
}




@OverridepublicbooleanonNavigationItemSelected(@NonNull MenuItem item) {
    intid= item.getItemId();

    Intent nextIntent;
    switch (id){
        case R.id.item1:
            addYourFragment();
            break;
        case R.id.item2:           
            addYourFragmentTwo()
            break;
        case R.id.item3:
            addYourFragmentThree()
            break;
    }

    drawer.closeDrawer(GravityCompat.START);
    returntrue;
}