Nothing happens when i click the items from my navigation drawer. I've tried putting the block of code to replace fragments in the onCreate() method just to test if my FragmentTransaction is working and they work well. I don't know what i am doing wrong. Here's my code for the navigation drawer that i learned from tutorials
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout mDrawerLayout;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar actionbar = getSupportActionBar();
actionbar.setDisplayHomeAsUpEnabled(true);
actionbar.setHomeAsUpIndicator(R.drawable.ic_menu);
mDrawerLayout = findViewById(R.id.drawer_layout);
mDrawerLayout.addDrawerListener(
new DrawerLayout.DrawerListener() {
@Override
public void onDrawerSlide(@NonNull View drawerView, float slideOffset) {
}
@Override
public void onDrawerOpened(@NonNull View drawerView) {
}
@Override
public void onDrawerClosed(@NonNull View drawerView) {
}
@Override
public void onDrawerStateChanged(int newState) {
}
}
);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, mDrawerLayout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
mDrawerLayout.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView)findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
item.setChecked(true);
mDrawerLayout.closeDrawers();
int id = item.getItemId();
FragmentTransaction ft = getFragmentManager().beginTransaction();
switch (id) {
case R.id.nav_budget:
BudgetMain fragBudgetMain = new BudgetMain();
ft.replace(R.id.flContent, fragBudgetMain);
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
break;
case R.id.nav_expenses:
Expenses fragExp = new Expenses();
ft.replace(R.id.flContent, fragExp);
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
break;
case R.id.nav_selfassessment:
SelfAssessment fragSelf = new SelfAssessment();
ft.replace(R.id.flContent, fragSelf);
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
break;
case R.id.nav_mealcard:
MealCard fragMeal = new MealCard();
ft.replace(R.id.flContent, fragMeal);
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
break;
case R.id.nav_ranking:
Ranking fragRanking = new Ranking();
ft.replace(R.id.flContent, fragRanking);
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
break;
}
mDrawerLayout.closeDrawer(GravityCompat.START);
return true;
}
This is my activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<!-- Use DrawerLayout as root container for activity -->
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:background="@drawable/gradient2">
<!-- Layout to contain contents of main body of screen (drawer will slide over this) -->
<!-- Container for contents of drawer - use NavigationView to make configuration easier -->
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="@menu/drawer_view"
app:headerLayout="@layout/nav_header"/>
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v4.widget.DrawerLayout>This is my app_bar_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.activity.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?android:attr/actionBarSize"
android:background="@drawable/gradient"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="@+id/flContent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="?android:attr/actionBarSize"/>
</android.support.design.widget.CoordinatorLayout>My drawer_view.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<group android:checkableBehavior="single">
<item
android:id="@+id/nav_home"
android:icon="@drawable/ic_home"
android:title="Home"/>
<item
android:id="@+id/nav_budget"
android:icon="@drawable/ic_budget"
android:title="Budget"/>
<item
android:id="@+id/nav_expenses"
android:icon="@drawable/ic_expenses"
android:title="Expenses"/>
<item
android:id="@+id/nav_mealcard"
android:icon="@drawable/ic_mealcard"
android:title="Meal Card"/>
<item
android:id="@+id/nav_selfassessment"
android:icon="@drawable/ic_selfassessment"
android:title="Self-Assessment"/>
<item
android:id="@+id/nav_ranking"
android:icon="@drawable/ic_ranking"
android:title="Ranking"/>
</group>
</menu>
