How to use Android Studio default Navigation Drawer in all Activities

Question

How to use the Android default Navigation in other Activities?

I don't want to use the back button.

MainActivity:

public class MainActivity extends AppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener {

TextView tvhead,tv6,tv7,tv8,tv9,tvbottom;
Typeface schriftart_courier_prime;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);


    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
            this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawer.setDrawerListener(toggle);
    toggle.syncState();

    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    navigationView.setNavigationItemSelectedListener(this);

    FragmentManager fm = getFragmentManager();
    fm.beginTransaction().replace(R.id.content_frame, new MainFragment()).commit();
}

@Override
public void onBackPressed() {
    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    if (drawer.isDrawerOpen(GravityCompat.START)) {
        drawer.closeDrawer(GravityCompat.START);
    } else {
        super.onBackPressed();
    }
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_about) {

        Intent getNameScreenIntent2 = new Intent (this, AboutActivity.class);


        final int result = 1;

        startActivity(getNameScreenIntent2);

        return true;

        //Actionbar element für später
    }else if (id == R.id.action_phone){

    }

    return super.onOptionsItemSelected(item);
}


@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {

    FragmentManager fm = getFragmentManager();

    int id = item.getItemId();

    if (id == R.id.nav_home) {
        fm.beginTransaction().replace(R.id.content_frame, new MainFragment()).commit();
    } else if (id == R.id.nav_experiments) {

        Intent getNameScreenIntent = new Intent(this, ExperimentsList.class);

        final int result = 1;

        startActivity(getNameScreenIntent);
    } else if (id == R.id.nav_website) {

        Intent getNameScreenIntent = new Intent(this, Web.class);

        final int result = 1;

        startActivity(getNameScreenIntent);
    } else if (id == R.id.nav_share) {

        Intent share = new Intent(Intent.ACTION_SEND);
        share.setType("text/plain");
        share.putExtra(Intent.EXTRA_TEXT, getString(R.string.share_text));
        startActivity(Intent.createChooser(share, getString(R.string.share_title)));
    }

    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    drawer.closeDrawer(GravityCompat.START);
    return true;
}

Answer 1

Have all the activities that need that drawer inherit from a custom abstract Activity class, that adds the drawer in its onCreate method.

make a class something like:

public abstract class MyNavigationActivity extends AppCompatActivity { 
   @Override 
   protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
     setSupportActionBar(toolbar);
     DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
     ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
        this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
     drawer.setDrawerListener(toggle);
     toggle.syncState();

     NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
     navigationView.setNavigationItemSelectedListener(this);
   } 
} 

then:

public class MyActivity extends MyNavigationActivity{ 
   @Override 
   protected void onCreate(Bundle savedInstanceState) { 
       super.onCreate(savedInstanceState);
       FragmentManager fm = getFragmentManager();
       fm.beginTransaction().replace(R.id.content_frame, new MainFragment()).commit();
   }
}