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When I click the bottom navigation item more times the fragment loading again

This is my code I have created a bottom navigation view and I am connected the items to fragment separately. When I click the the navigation item more time the fragment load again again.
I don't know what is the problem here.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
BottomNavigationView bottomNav = findViewById(R.id.bottom_navigation);
bottomNav.setOnNavigationItemSelectedListener(navListener);
}
private BottomNavigationView.OnNavigationItemSelectedListener navListener =
new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
Fragment SelectedFragment=null;
FragmentManager fm=getSupportFragmentManager();
FragmentTransaction ft=fm.beginTransaction();
ft.commit();
switch (item.getItemId()) {
case R.id.navigation_home:
setTitle("Playing11");
HomeFragment fragment = new HomeFragment();
ft.replace(R.id.fragment_container, fragment);
return true;
case R.id.navigation_dashboard:
HomeFragment1 fragment1 = new HomeFragment1();
ft.replace(R.id.fragment_container, fragment1);
return true;
case R.id.navigation_notifications:
setTitle("Safe11");
HomeFragment2 fragment2 = new HomeFragment2();
ft.replace(R.id.fragment_container, fragment2);
return true;
case R.id.navigation_notification:
setTitle("More");
HomeFragment3 fragment3 = new HomeFragment3();
ft.replace(R.id.fragment_container, fragment3);
return true;
}
return false;
}
};
}

Try to change your code like this:
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
switch (item.getItemId()) {
case R.id.menu_home:
HomeFragment homeFragment = new HomeFragment();
fragmentTransaction.replace(R.id.frameContentPlace, homeFragment, "HomeFragment").addToBackStack("HomeFragment");
break;
case R.id.menu_profile:
HomeFragment1 fragment1 = new HomeFragment1();
fragmentTransaction.replace(R.id.frameContentPlace, fragment1).addToBackStack("HomeFragment1");
break;
case R.id.menu_bookings:
HomeFragment2 fragment2 = new HomeFragment2();
fragmentTransaction.replace(R.id.frameContentPlace, fragment2).addToBackStack("HomeFragment2");
break;
}
fragmentTransaction.commit();
return true;
}

When you adding fragment use tag. So write
ft.replace(R.id.fragment_container, fragment, "MyFragment);
instead of
ft.replace(R.id.fragment_container, fragment);
And check if this fragment is visible for not loading this fragment again
switch (item.getItemId())
{
case R.id.navigation_home:
HomeFragment fragment = (HomeFragment)getFragmentManager().findFragmentByTag("MyFragment");
if (fragment != null && !fragment.isVisible())
{
setTitle("Playing11");
HomeFragment fragment = new HomeFragment();
ft.replace(R.id.fragment_container, fragment);
return true;
}
}

getting wrong fragment onclick of bottomnavigation

Hi i'm making an app where i'm using fragments with bottom navigation however when i click on home button it doesnt load home fragment instead it loads the second fragment and moreover when i start the app home fragment doesnt load by default i know it may sound naive but i'm having this problem plaese if someone may guide me
my code for fragment navigation
public class MainActivity extends AppCompatActivity {
FrameLayout frameLayout;
FragmentManager fragmentManager;
Fragment fragment;
BottomNavigationView bottomNavigationView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//BottomNavigationView b=findViewById(R.id.bottom_nav);
fragmentManager = getSupportFragmentManager();
if(findViewById(R.id.frame_container)!=null){
if(savedInstanceState!=null){
return;
}
/*HomeFragment homeFragment = new HomeFragment();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.frame_container, homeFragment,null);
transaction.addToBackStack(null);
/* Comment this line and it should work!*/
//transaction.addToBackStack(null);
//transaction.commit();
}
bottomNavigationView = (BottomNavigationView) findViewById(R.id.bottom_nav);
//final SeekBar sb = (SeekBar) findViewById(R.id.sb);
bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
Fragment fragment = null;
switch (item.getItemId()){
case R.id.navigation_home:
fragment = new HomeFragment();
loadFragment(fragment);
case R.id.navigation_feed:
fragment = new FeedFragment();
loadFragment(fragment);
return true;
case R.id.navigation_event:
fragment = new EventsFragment();
loadFragment(fragment);
return true;
case R.id.navigation_nearby:
fragment = new NearbyFragment();
loadFragment(fragment);
return true;
case R.id.navigation_profile:
fragment = new ProfileFragment();
loadFragment(fragment);
return true;
}
return false;
}
});
}
private void loadFragment(Fragment fragment) {
// HomeFragment homeFragment = new HomeFragment();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.frame_container, fragment,null);
transaction.addToBackStack(null);
/* Comment this line and it should work!*/
//transaction.addToBackStack(null);
transaction.commit();
// load fragment
//HomeFragment homeFragment = new HomeFragment();
}
}

You just forgot to return true; inside case R.id.navigation_home: check it
Try this
bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
Fragment fragment = null;
switch (item.getItemId()){
case R.id.navigation_home:
fragment = new HomeFragment();
loadFragment(fragment);
return true;
case R.id.navigation_feed:
fragment = new FeedFragment();
loadFragment(fragment);
return true;
case R.id.navigation_event:
fragment = new EventsFragment();
loadFragment(fragment);
return true;
case R.id.navigation_nearby:
fragment = new NearbyFragment();
loadFragment(fragment);
return true;
case R.id.navigation_profile:
fragment = new ProfileFragment();
loadFragment(fragment);
return true;
}
return false;
}
});

How to implement default activity (fragment) on app load. (Drawer Layout)

I am using fragments and have successfully set up all the activities. Everything is fully functional.
My issue is that I can't seem to have a default layout or fragment class load when the app starts up initially.
I have tried a few methods with weird results. Here is my code from MainActivity.
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#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.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView)
findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
int id = item.getItemId();
Fragment fragment = null;
if (id == home) {
fragment = new Home();
} else if (id == services) {
fragment = new Services();
} else if (id == beforeAfter) {
fragment = new BeforeAfter();
} else if (id == staff) {
fragment = new Staff();
} else if (id == patientInfo) {
fragment = new Patient();
} else if (id == blog) {
fragment = new Blog();
} else if (id == contactUs) {
fragment = new Contact();
}
if (fragment != null) {
android.support.v4.app.FragmentManager fragmentManager =
getSupportFragmentManager();
FragmentTransaction ft = fragmentManager.beginTransaction();
ft.replace(R.id.screen_area, fragment);
ft.commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
This is my fragment code for Home.class
public class Home extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup
container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.home, null);
}
}
After editing my MainActivity java file and appending onCreate with
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.screen_area, new Home());
ft.commit();
It now works. I guess I was assigning the name of the XML layout page for Home fragment instead of the ID of the FrameLayout under content_main.

call the fragment in your onCreate
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.content_frame, new Fragment1());
ft.commit();

your code looks fine. I guess the problem is in your activity_main.xml
make sure you have only two childs inside the DrawerLayout
one for your main container and one the NavigationView
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- The main content view -->
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- The navigation drawer -->
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="#menu/my_navigation_items" />
</android.support.v4.widget.DrawerLayout>
you need to show your fragments inside onCreate
FragmentTransaction mFragmentTransaction = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.content_frame, new YourFragment());
ft.commit(); //important

How to create a Image gallery inside a fragment in Android Studio

So I've created a Gallery Fragment in my navigation drawer. Now my question is, how do I create an image gallery once you clicked the "gallery" in my drawer step by step using gridView. Other tutorials in the internet uses MainActivity, which in my case, I need to put it in my GalleryFragment, but a fragment is in a whole new level. My codes are below.
for my MainActivity.java:
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
NavigationView navigationView = null;
Toolbar toolbar = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//set the fragment initially
MainFragment fragment = new MainFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction =
getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
//-------------------------'
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
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) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
#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_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_home) {
//Set the fragment initially
MainFragment fragment = new MainFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction =
getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
// Handle the camera action
} else if (id == R.id.nav_gallery) {
GalleryFragment fragment = new GalleryFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction =
getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
} else if (id == R.id.nav_about) {
AboutFragment fragment = new AboutFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction =
getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
} else if (id == R.id.nav_contact) {
ContactFragment fragment = new ContactFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction =
getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
GalleryFragment.java:
public class GalleryFragment extends Fragment {
public GalleryFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_gallery, container, false);
}
}
fragment_gallery.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.guitarista.citem.GalleryFragment">
<!-- TODO: Update blank fragment layout
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="#string/hello_blank_fragment" />
-->
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="GALLERY"
android:padding="8dp"
android:textColor="#fff"
android:background="#color/colorPrimary"
android:textSize="28sp"
android:id="#+id/main_button"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>

how to change Action bar icon to back arrow when open a fragment

I am trying to create an app. I want to change navigation drawer icon to back Arrow in Action Bar and when i open a fragment and go back to main activity when i click on back arrow in fragment Using the following code-
public class MainActivity extends FragmentActivity implements OnMapReadyCallback, ConnectionCallbacks, OnConnectionFailedListener,LocationListener{
DrawerLayout mDrawerLayout;
ListView mDrawerList;
#SuppressWarnings("deprecation")
ActionBarDrawerToggle mDrawerToggle;
String mTitle="";
private final String TAG = this.getClass().getSimpleName();
LocationRequest mLocationRequest;
GoogleApiClient mGoogleApiClient;
LatLng latLng;
GoogleMap mMap;
SupportMapFragment mFragment;
Marker CurrentMarker,NearbyPlace,FindMarker;
EditText editplace = null;
Button findbtn = null;
boolean firstRun = true;
private Boolean exit = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//for connectivity service
ConnectivityManager cManager = (ConnectivityManager) getSystemService(this.CONNECTIVITY_SERVICE);
NetworkInfo nInfo = cManager.getActiveNetworkInfo();
if (nInfo != null && nInfo.isConnected()) {
Toast.makeText(this, "Network is available ", Toast.LENGTH_SHORT).show();
AdView adView = (AdView)findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
//.addTestDevice("abc")
.build();
adView.loadAd(adRequest);
mFragment=(SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map);
mFragment.getMapAsync(this);
}
else{
Toast.makeText(this, "Network is not available ", Toast.LENGTH_SHORT).show();
Fragment newFragment;
FragmentTransaction transaction = getFragmentManager().beginTransaction();
newFragment = new NetworkCheck();
transaction.replace(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();
}
editplace = (EditText) findViewById(R.id.editplace);
findbtn = (Button) findViewById(R.id.findbtn);
setListnerOnWidget();
mTitle = (String) getTitle();
// Getting reference to the DrawerLayout
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.drawer_list);
// Getting reference to the ActionBarDrawerToggle
mDrawerToggle = new ActionBarDrawerToggle( this,
mDrawerLayout,
R.drawable.ic_drawer,
R.string.drawer_open,
R.string.drawer_close){
/** Called when drawer is closed */
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
invalidateOptionsMenu();
}
/** Called when a drawer is opened */
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle("Select a menu");
invalidateOptionsMenu();
}
};
// Setting DrawerToggle on DrawerLayout
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerToggle.setDrawerIndicatorEnabled(true);
// Creating an ArrayAdapter to add items to the listview mDrawerList
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
getBaseContext(),
R.layout.drawer_list_item ,
getResources().getStringArray(R.array.menu)
);
mDrawerList.setAdapter(adapter);
getActionBar().setHomeButtonEnabled(true);
getActionBar().setDisplayHomeAsUpEnabled(true);
// Setting item click listener for the listview mDrawerList
mDrawerList.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent,
View view,
int position,
long id) {
displayView(position);
// Updating the action bar title
String[] menu = getResources().getStringArray(R.array.menu);
mTitle = menu[position];
mDrawerLayout.closeDrawer(mDrawerList);
}
private void displayView(int position) {
// TODO Auto-generated method stub
Fragment newFragment;
FragmentTransaction transaction = getFragmentManager().beginTransaction();
switch (position) {
case 0:
newFragment = new Help();
transaction.replace(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();
break;
case 1:
newFragment = new ContactUs();
transaction.replace(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();
break;
case 2:
transaction.addToBackStack(null);
getActionBar().setTitle("IQWINER");
try
{
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(Intent.EXTRA_SUBJECT, "My application name");
String sAux = "\nLet me recommend you this application\n\n";
sAux = sAux + "https://play.google.com/store/apps/details?id=com.iqwiner\n\n";
i.putExtra(Intent.EXTRA_TEXT, sAux);
startActivity(Intent.createChooser(i, "Choose an action"));
}
catch(Exception e)
{ //e.toString();
}
break;
case 3:
newFragment = new Suggestion_Address();
transaction.replace(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();
Log.e(TAG, "Suggestion Address button is clicked");
break;
}
}
});
}
private void setListnerOnWidget() {
// TODO Auto-generated method stub
OnClickListener listener = new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String location = editplace.getText().toString();
if(location!=null && !location.equals("")){
new GeocoderTask().execute(location);
}
}
};
findbtn.setOnClickListener(listener);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
//for back button
#Override
public void onBackPressed() {
if(mDrawerLayout.isDrawerOpen(Gravity.START)){
mDrawerLayout.closeDrawer(Gravity.START);
}
else if(getFragmentManager().getBackStackEntryCount() > 1){
super.onBackPressed();
}
else{
if (exit){
finish(); // finish activity
}
else{
Toast.makeText(this, "Tap Back again to Exit.",
Toast.LENGTH_SHORT).show();
exit = true;
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
exit = false;
}
}, 3 * 1000);
}
}
}
I want to change navigation drawer icon to back arrow icon when i open a fragment and when i click on back arrow then go back to main activity from a fragment.
Thanks

Remove the below code :
mDrawerToggle.setDrawerIndicatorEnabled(true);
// Creating an ArrayAdapter to add items to the listview mDrawerList
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
getBaseContext(),
R.layout.drawer_list_item ,
getResources().getStringArray(R.array.menu)
);
mDrawerList.setAdapter(adapter);
getActionBar().setHomeButtonEnabled(true);
getActionBar().setDisplayHomeAsUpEnabled(true);
// Setting item click listener for the listview mDrawerList
mDrawerList.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent,
View view,
int position,
long id) {
displayView(position);
// Updating the action bar title
String[] menu = getResources().getStringArray(R.array.menu);
mTitle = menu[position];
mDrawerLayout.closeDrawer(mDrawerList);
}
private void displayView(int position) {
// TODO Auto-generated method stub
Fragment newFragment;
FragmentTransaction transaction = getFragmentManager().beginTransaction();
switch (position) {
case 0:
newFragment = new Help();
transaction.replace(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();
break;
case 1:
newFragment = new ContactUs();
transaction.replace(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();
break;
case 2:
transaction.addToBackStack(null);
getActionBar().setTitle("IQWINER");
try
{
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(Intent.EXTRA_SUBJECT, "My application name");
String sAux = "\nLet me recommend you this application\n\n";
sAux = sAux + "https://play.google.com/store/apps/details?id=com.iqwiner\n\n";
i.putExtra(Intent.EXTRA_TEXT, sAux);
startActivity(Intent.createChooser(i, "Choose an action"));
}
catch(Exception e)
{ //e.toString();
}
break;
case 3:
newFragment = new Suggestion_Address();
transaction.replace(R.id.content_frame, newFragment);
transaction.addToBackStack(null);
transaction.commit();
Log.e(TAG, "Suggestion Address button is clicked");
break;
}
}
});
and change it with below code:
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
// This method will trigger on item Click of navigation menu
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
//Checking if the item is in checked state or not, if not make it in checked state
if (menuItem.isChecked()) menuItem.setChecked(false);
else menuItem.setChecked(true);
//Closing drawer on item click
drawerLayout.closeDrawers();
//Check to see which item was being clicked and perform appropriate action
switch (menuItem.getItemId()) {
//Replacing the main content with ContentFragment Which is our Inbox View;
case R.id.drawer_home:
txt_title.setText("Home");
Intent intent=new Intent(HomeActivity.this, HomeActivity.class);
startActivity(intent);
finish();
return true;
case R.id.drawer_artist:
txt_title.setText("Artists");
android.support.v4.app.FragmentManager fragmentManager=getSupportFragmentManager();
android.support.v4.app.FragmentTransaction fragmentTransaction=fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.content_frame, new ArtistsFragment());
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
return true;
case R.id.drawer_myplaylist:
txt_title.setText("My Playlists");
fragmentManager = getSupportFragmentManager();
fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.content_frame, new PlayListFragment());
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
return true;
default:
Toast.makeText(getApplicationContext(), "Somethings Wrong", Toast.LENGTH_SHORT).show();
return true;
}
}
});
Edit
xml:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:elevation="4dp"
android:layout_height="fill_parent"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<include
android:id="#+id/tool_bar"
layout="#layout/toolbar"
android:layout_height="wrap_content"
android:layout_width="match_parent"
/>
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/home">
//Your layout
</FrameLayout>
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
android:background="#drawable/bg_all"
app:itemIconTint="#android:color/white"
app:itemTextColor="#android:color/white"
app:theme="#style/list_item_appearance"
app:menu="#menu/drawer_menu" >
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>

getSupportFragmentManager().addOnBackStackChangedListener(
new FragmentManager.OnBackStackChangedListener() {
#Override
public void onBackStackChanged() {
if (getSupportFragmentManager()
.getBackStackEntryCount() > 0) {
getSupportActionBar()
.setDisplayHomeAsUpEnabled(true); // show
// back button
mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
onBackPressed();
}
});
} else {
// show hamburger
getSupportActionBar()
.setDisplayHomeAsUpEnabled(false);
mDrawerToggle.syncState();
mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
drawerLayout
.openDrawer(GravityCompat.START);
}
});
}
}
});
Use the following after mDrawerLayout.setDrawerListener(mDrawerToggle);