MainActivity [-]

package com.example.iptea.hearingclub;

import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomNavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
import android.widget.TextView;

import io.realm.Realm;

public class MainActivity extends AppCompatActivity {

    private TextView mTextMessage;

    Realm realm;
    HearingResults savedHearingResults;

    private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
            = new BottomNavigationView.OnNavigationItemSelectedListener() {

        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
            switch (item.getItemId()) {
                case R.id.test_hearing:

                    setTitle("Fragment Title");
                    HearingTestMainFragment fragment = new HearingTestMainFragment();
                    FragmentTransaction fragmentTransaction1 = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction1.replace(R.id.fram,fragment,"FragmentName");
                    fragmentTransaction1.commit();

                    return true;
                case R.id.results_hearing:

                    setTitle("Fragment Title");
                    ResultsMainFragment fragment2 = new ResultsMainFragment();
                    FragmentTransaction fragmentTransaction2 = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction2.replace(R.id.fram,fragment2,"FragmentName");
                    fragmentTransaction2.commit();

                    return true;

                case R.id.trends_hearing:

                    setTitle("Fragment Title");
                    TrendsMainFragment fragment3 = new TrendsMainFragment();
                    FragmentTransaction fragmentTransaction3 = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction3.replace(R.id.fram,fragment3,"FragmentName");
                    fragmentTransaction3.commit();

                    return true;

                case R.id.about_hearing:

                    setTitle("Fragment Title");
                    AboutMainFragment fragment4 = new AboutMainFragment();
                    FragmentTransaction fragmentTransaction4 = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction4.replace(R.id.fram,fragment4,"FragmentName");
                    fragmentTransaction4.commit();

                    return true;
            }
            return false;
        }

    };

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


        savedHearingResults = new HearingResults();
        //Realm init
        Realm.init(this);
        realm.getDefaultInstance();
        //Helper init
        final RealmHelper helper = new RealmHelper(realm);


        BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
        navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);


        setTitle("Fragment Title One");
        HearingTestMainFragment fragment = new HearingTestMainFragment();
        FragmentTransaction fragmentTransaction1 = getSupportFragmentManager().beginTransaction();
        fragmentTransaction1.replace(R.id.fram,fragment,"FragmentName");
        fragmentTransaction1.commit();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        realm.close();
        realm = null;
    }

    private static final String REALM_TAG = "__REALM__";

    public static Realm getRealm(Context context) {
        // noinspection ResourceType
        return (Realm)context.getSystemService(REALM_TAG);
    }

    @Override
    public Object getSystemService(@NonNull String name) {
        if(REALM_TAG.equals(name)) {
            return realm;
        }
        return super.getSystemService(name);
    }
}



 /*Realm.init(this);
        realm.getDefaultInstance();*/

//mTextMessage = (TextView) findViewById(R.id.message);





/*    private static final String REALM_TAG = "__REALM__";

    public static Realm getRealm(Context context) {
        // noinspection ResourceType
        return (Realm)context.getSystemService(REALM_TAG);
    }*/

/*    @Override
    public Object getSystemService(@NonNull String name) {
        if(REALM_TAG.equals(name)) {
            return realm;
        }
        return super.getSystemService(name);
    }*/


    //



/*    @Override
    protected void onDestroy() {
        super.onDestroy();
        realm.close();
        realm = null;
    }*/