Hide a Navigation Drawer Menu Item - Android

Question

I have a navigation drawer. When an event is called, I want to hide one of my navigation menu item for user. How can I do that?

protected void onCreate(Bundle sa         


        

Answer 1

NavigationView navigationView;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    hideItem();
  }


private void hideItem()
   {
     navigationView = (NavigationView) findViewById(R.id.nav_view);
     Menu nav_Menu = navigationView.getMenu();
     nav_Menu.findItem(R.id.nav_settings).setVisible(false);
   }

Answer 2

    //hide logout menu item when the user is not loggrd in
    //Checking the condition whether the user is logged in or not

    if (!SharedPrefManager.getmInstance(this).isLoggedIn()){
        Menu nav_Menu = navigationView.getMenu();
    nav_Menu.findItem(R.id.nav_logout).setVisible(false);
    }


 //SharedPrefManager .java class where we define the isLoggedIn Method()

import android.content.Context;
import android.content.SharedPreferences;

import com.motortrade.motortrade.t_Model.User;

public class SharedPrefManager {

private static final String SHARED_PREF_NAME = "my_shared_pref";

private  static SharedPrefManager mInstance;
private Context mCtx;

private SharedPrefManager(Context mCtx){
    this.mCtx = mCtx;
}

public static synchronized SharedPrefManager getmInstance(Context mCtx){
    if (mInstance == null){
        mInstance = new SharedPrefManager(mCtx);
    }
    return mInstance;
}

public boolean isLoggedIn(){
    SharedPreferences preferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);

   return preferences.getInt("user_id", -1) != -1;
}