Quite simply, the first option in the navigation drawer, that I currently have functioning with fragments, I want that first open to open up my view with the bottom navigation items which has its own fragments. I know i'm going about this all wrong but any assistance would be helpful. I also want to keep the action bar at the top whilst I'm in my bottom navigation view activity or fragment if I can transform it, I clearly don't know much.
Navigation Drawer Activity
public class HomeActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout drawer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
drawer = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.main_nav_view);
navigationView.setNavigationItemSelectedListener(this);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment_container, new AccountFragment()).commit();
navigationView.setCheckedItem(R.id.nav_account);
}
}
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.nav_account:
getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment_container, new AccountFragment()).commit();
break;
case R.id.nav_nfc:
getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment_container, new NfcFragment()).commit();
break;
case R.id.nav_report:
getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment_container, new ReportUserFragment()).commit();
break;
case R.id.nav_settings:
getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment_container, new SettingsFragment()).commit();
break;
case R.id.nav_about:
getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment_container, new AboutFragment()).commit();
break;
case R.id.nav_help:
getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment_container, new HelpFragment()).commit();
break;
case R.id.nav_logout:
getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment_container, new LogoutFragment()).commit();
break;
}
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
}
Navigation Drawer XML
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout 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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/drawer_layout"
android:fitsSystemWindows="true"
tools:context=".MainActivity"
tools:openDrawer="start">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.appcompat.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/darkgrey"
android:id="#+id/toolbar"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
android:elevation="4dp"/>
<FrameLayout
android:id="#+id/main_fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:id="#+id/main_nav_view"
app:headerLayout="#layout/nav_header"
app:menu="#menu/drawer_menu"/>
</androidx.drawerlayout.widget.DrawerLayout>
Bottom Navigation View Activity
public class BottomNavigation extends AppCompatActivity implements BottomNavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_bottom_navigation);
BottomNavigationView navView = findViewById(R.id.nav_view);
navView.setOnNavigationItemSelectedListener(this);
loadFragment(new PeopleFragment());
}
private boolean loadFragment(Fragment fragment) {
if(fragment != null) {
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.fragment_container, fragment)
.commit();
return true;
}
return false;
}
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem menuItem) {
Fragment fragment = null;
switch (menuItem.getItemId()) {
case R.id.navigation_people:
fragment = new PeopleFragment();
break;
case R.id.navigation_products:
fragment = new ProductsFragment();
break;
case R.id.navigation_scanner:
fragment = new ScannerFragment();
break;
/*case R.id.navigation_nfc:
fragment = new NfcFragment();
break;*/
case R.id.navigation_collection:
fragment = new CollectionFragment();
break;
case R.id.navigation_profile:
fragment = new ProfileFragment();
break;
}
return loadFragment(fragment);
}
}
Bottom Navigation View XML
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white"
tools:context=".BottomNavigation">
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="56dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"></FrameLayout>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/nav_view"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#color/darkgrey"
app:itemIconTint="#color/grey"
app:itemTextColor="#color/grey"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="#menu/bottom_nav_menu" />
</androidx.constraintlayout.widget.ConstraintLayout>
I do that, with this code in my onCreate
public class MainActivity extends AppCompatActivity {
private AppBarConfiguration mAppBarConfiguration;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = 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 = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
mAppBarConfiguration = new AppBarConfiguration.Builder(
R.id.nav_home, R.id.nav_perfil, R.id.nav_carrito, R.id.nav_pedidos, R.id.nav_soporte, R.id.nav_articulos)
.setDrawerLayout(drawer)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
NavigationUI.setupWithNavController(navigationView, navController);
//al dar click sobre las opciones del menu de navegacion inferior entra aqui
BottomNavigationView btnMenu=(BottomNavigationView) findViewById(R.id.bottomNavigationView);
NavigationUI.setupWithNavController(btnMenu, navController);
}
#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 onSupportNavigateUp() {
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
return NavigationUI.navigateUp(navController, mAppBarConfiguration)
|| super.onSupportNavigateUp();
}
}
Related
[![AS you can see on clicking nav_home then another nav_menu this seems to overlap the fragment which is really confusing for me. As I might need help to understand this better... Also please focus on emulator only][1]][1]
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = ActivityDashBoard2Binding.inflate(getLayoutInflater());
setContentView(binding.getRoot());
sessionManager = new SessionManager(getApplicationContext());
setSupportActionBar(binding.appBarDashBoard2.toolbar);
DrawerLayout drawer = binding.drawerLayout;
NavigationView navigationView = binding.navView;
mAppBarConfiguration = new AppBarConfiguration.Builder(
R.id.nav_home, R.id.nav_weekly_visit, R.id.nav_visit,
R.id.nav_messages, R.id.nav_expenses, R.id.nav_forms,
R.id.nav_settings, R.id.nav_last_sync, R.id.nav_location_update,
R.id.nav_logout, R.id.nav_my_team)
.setOpenableLayout(drawer)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_content_dash_board2);
NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
NavigationUI.setupWithNavController(navigationView, navController);
navigationView.setNavigationItemSelectedListener(this);
System.out.println(sessionManager.getUserName() +"\n"+ sessionManager.getUserID() +
"\n" + sessionManager.getDesignation());
Log.d("DashBoardActivity", "onChanged: " + sessionManager.getUserID() +"\n"+ sessionManager.getUserName());
}
This is the onNavigationItemSelected() in DashBoardActivity after onCreate()
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
switch (item.getItemId()){
case R.id.nav_visit:
fragment = new VisitFrag();
loadFragment(fragment);
break;
case R.id.nav_weekly_visit:
fragment = new WeeklyVisitFrag();
loadFragment(fragment);
break;
case R.id.nav_logout:
sessionManager.isNotLogin();
sessionManager.logoutUser();
finish();
break;
}
whereas loadFragment() passes individual fragment class object to replace
private boolean loadFragment(Fragment fragment) {
if (fragment != null) {
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.nav_host_fragment_content_dash_board2, fragment)
.commit();
return true;
}
return false;
}
**
Now my doubt about including navigation component how to code in
navigation graph XML ?
**
<?xml version="1.0" encoding="utf-8"?>
<navigation 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:id="#+id/mobile_navigation2"
app:startDestination="#+id/nav_home">
<fragment
android:id="#+id/nav_home"
android:name="com.ocean.suryamfinderdemo.view.activity.ui.fragment.HomeFragment"
android:label="#string/menu_home"
tools:layout="#layout/fragment_home" />
<fragment
android:id="#+id/nav_gallery"
android:name="com.ocean.suryamfinderdemo.view.activity.ui.fragment.VisitFrag"
android:label="Visit Fragment"
tools:layout="#layout/fragment_weekly_visit" />
<fragment
android:id="#+id/nav_slideshow"
android:name="com.ocean.suryamfinderdemo.view.activity.ui.fragment.WeeklyVisitFrag"
android:label="#string/menu_slideshow"
tools:layout="#layout/fragment_visit" />
</navigation>
Here is error
java.lang.NullPointerException: Attempt to invoke virtual method 'void
android.support.v7.widget.Toolbar.setNavigationOnClickListener(android.view.View$
OnClickListener)' on a null object reference
it happen on
toolBar.setNavigationOnClickListener(new View.OnClickListener()
imageView.setOnClickListener(new View.OnClickListener()
bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener()
have the same problem "null object reference".
my team separate file to fragment and all action listener in MainActivity is broke down but we want to separate to fragment like this, but I can't find why separate file to fragment it will null object reference
Here XML fragment_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layoutDirection="rtl"><!--set tool bar right to left set drawer to right-->
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="0dp"
android:layout_height="56dp"
android:background="#color/colorPrimary"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
tools:layout_editor_absoluteY="0dp"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar" />
<ImageView
android:id="#+id/pamba_icon_id"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="0dp"
app:layout_constraintLeft_toLeftOf="#+id/toolbar"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/pambaicon"
app:layout_constraintBottom_toBottomOf="#+id/toolbar"
android:layout_marginBottom="0dp"
app:layout_constraintVertical_bias="0.0" />
<ImageView
android:id="#+id/filter_icon_id"
android:clickable="true"
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginBottom="8dp"
android:layout_marginRight="48dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="#+id/toolbar"
app:layout_constraintRight_toRightOf="#+id/toolbar"
app:layout_constraintTop_toTopOf="#+id/toolbar"
app:srcCompat="#drawable/filter"
app:layout_constraintVertical_bias="0.533" />
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/viewPaper_id"
android:layout_below="#id/toolbar">
</android.support.v4.view.ViewPager>
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.BottomNavigationView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/bottomNavigation_id"
android:layout_gravity="bottom"
android:background="?android:attr/windowBackground"
app:menu="#menu/bottom_navigation_menu"
app:theme="#style/BottomNavigationTheme"
app:itemBackground="#color/colorGray"/>
</android.support.design.widget.CoordinatorLayout>
</android.support.constraint.ConstraintLayout>
Here activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
android:layoutDirection="rtl"><!--set tool bar right to left set drawer to right-->
<android.support.constraint.ConstraintLayout
android:id="#+id/contentContainer"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.constraint.ConstraintLayout>
Here MainFragment
import...
public class MainFragment extends Fragment {
public MainFragment() {
super();
}
public static MainFragment newInstance() {
MainFragment fragment = new MainFragment();
Bundle args = new Bundle();
fragment.setArguments(args);
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
initInstances(rootView);
return rootView;
}
private void initInstances(View rootView) {
// Init 'View' instance(s) with rootView.findViewById here
}
#Override
public void onStart() {
super.onStart();
}
#Override
public void onStop() {
super.onStop();
}
/*
* Save Instance State Here
*/
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// Save Instance State here
}
/*
* Restore Instance State Here
*/
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
if (savedInstanceState != null) {
// Restore Instance State here
}
}
}
and MainActivity
import...
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener{
Toolbar toolBar;
DrawerLayout drawerLayout;
NavigationView navigationView;
ImageView imageView;
BottomNavigationView bottomNavigationView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.navigation_drawer);
setTitle(R.string.title);
drawerLayout = (DrawerLayout) findViewById(R.id.drawe_layout);
navigationView = (NavigationView) findViewById(R.id.navigation_view);
imageView = (ImageView) findViewById(R.id.filter_icon_id);
navigationView.setNavigationItemSelectedListener(this);
final ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawerLayout, toolBar, R.string.open_drawer, R.string.close_drawer);
drawerLayout.setDrawerListener(toggle);
toggle.syncState();
// set own toolbar
toolBar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolBar);
toolBar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (drawerLayout.isDrawerOpen(Gravity.RIGHT)) {
drawerLayout.closeDrawer(Gravity.RIGHT);
} else {
drawerLayout.openDrawer(Gravity.RIGHT);
}
}
});
imageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "filter click", Toast.LENGTH_SHORT).show();
}
});
bottomNavigationView = (BottomNavigationView) findViewById(R.id.bottomNavigation_id);
// select item from bottom navigation
bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
int id = item.getItemId();
switch (id){
case R.id.firstpage_id:
Toast.makeText(getApplicationContext(), "home", Toast.LENGTH_SHORT).show();
break;
case R.id.offergape_id:
Toast.makeText(getApplicationContext(), "offer", Toast.LENGTH_SHORT).show();
break;
case R.id.needpage_id:
Toast.makeText(getApplicationContext(), "need", Toast.LENGTH_SHORT).show();
break;
case R.id.searchpage_id:
Toast.makeText(getApplicationContext(), "search", Toast.LENGTH_SHORT).show();
break;
}
return true;
}
});
}
//close drawer when click back
#Override
public void onBackPressed() {
if(drawerLayout.isDrawerOpen(GravityCompat.END)){
drawerLayout.closeDrawer(GravityCompat.END);
}else {
super.onBackPressed();
}
}
// select item from drawer
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
int id = item.getItemId();
switch (id){
case R.id.account_detail_id:
Toast.makeText(getApplicationContext(), "account", Toast.LENGTH_SHORT).show();
break;
case R.id.trip_detail_id:
Toast.makeText(getApplicationContext(), "detail", Toast.LENGTH_SHORT).show();
break;
case R.id.mail_id:
Toast.makeText(getApplicationContext(), "mail", Toast.LENGTH_SHORT).show();
break;
case R.id.logout_id:
Toast.makeText(getApplicationContext(), "logout", Toast.LENGTH_SHORT).show();
break;
}
drawerLayout.closeDrawer(GravityCompat.END);
return true;
}
}
edit add navigation_drawer.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/drawe_layout"
android:fitsSystemWindows="true"
tools:openDrawer="end">
<!--set drawer open from right-->
<include layout="#layout/activity_main"/>
<android.support.design.widget.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/navigation_view"
android:background="#color/colorGray"
android:fitsSystemWindows="true"
app:headerLayout="#layout/navigation_header"
app:menu="#menu/navigation_menu"
app:theme="#style/NavigationDrawerStyle"
android:layout_gravity="end"/>
<!--set drawer open from right-->
</android.support.v4.widget.DrawerLayout>
Your setContentView in onCreate is setting it to R.layout.navigation_drawer. You didn't provide an example of that, but instead provided an example of R.layout.fragment_main. I'm thinking you want that one to be your layout instead. So in onCreate in your activity set your content view to that layout instead:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_main);
... // The rest of your code here
}
There are three fragments in my app.I showed them in the tabs successfully.Now i want to show fragment of tab1 on the click of navigationdrawer item1 and same for the rest.But there is a problem of overlapping.Can anyone guide me to get rid of this problem?
MainActivity.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
// Set the ViewPagerAdapter into ViewPager
viewPager.setAdapter(new ViewPagerAdapter(getSupportFragmentManager()));
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);
}
#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) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction =
fragmentManager.beginTransaction();
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
fragmentOne f1 = new fragmentOne();
fragmentTransaction.replace(R.id.fragment_container,f1);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
getSupportActionBar().setTitle("Camera");
} else if (id == R.id.nav_gallery) {
fragmentTwo f2 = new fragmentTwo();
fragmentTransaction.replace(R.id.fragment_container,f2);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
getSupportActionBar().setTitle("Gallery");
} else if (id == R.id.nav_slideshow) {
MenuFragment f3 = new MenuFragment();
fragmentTransaction.replace(R.id.fragment_container,f3);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
getSupportActionBar().setTitle("List");
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout)
findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
FragmentOne.java
public class fragmentOne extends Fragment {
TextView t1;
public fragmentOne(){
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment_one_layout,container, false);
}
}
ViewPagerAdapter.java
public class ViewPagerAdapter extends FragmentPagerAdapter {
final int PAGE_COUNT = 3;
// Tab Titles
private String tabtitles[] = new String[] { "Tab1", "Tab2", "Tab3" };
Context context;
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return PAGE_COUNT;
}
#Override
public Fragment getItem(int position) {
switch (position) {
// Open FragmentTab1.java
case 0:
fragmentOne fragmenttab1 = new fragmentOne();
return fragmenttab1;
// Open FragmentTab2.java
case 1:
fragmentTwo fragmenttab2 = new fragmentTwo();
return fragmenttab2;
// Open FragmentTab3.java
case 2:
MenuFragment fragmenttab3 = new MenuFragment();
return fragmenttab3;
}
return null;
}
#Override
public CharSequence getPageTitle(int position) {
return tabtitles[position];
}
}
MainActivity.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:id="#+id/content_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.example.chaitanya.navbar.MainActivity"
tools:showIn="#layout/app_bar_main">
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.view.PagerTabStrip
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:textColor="#000000" />
</android.support.v4.view.ViewPager>
<RelativeLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center|center_horizontal"
></RelativeLayout>
Is there a reason you are using a FragmentTransaction? You could call
viewPager.setCurrentItem(0);
The argument you pass (0 or 1 or 2 or ...) is based on which action you click in the NavigationView. The tabs should update automatically when the ViewPager changes.
This is my Homepage of my application(a work in progress). When I open my navigation drawer and navigate to my Media Page with tabbed fragments. As The Media Main page is an activity, without effecting the Navigation Drawer I manually had to enter the Navigation drawer into my XML Layout.
The issue is when I use the navigation drawer whilst my media page is open, the new fragment that I go to is not displayed properly. It is displayed just totally black.
This is the Homepage that I want that appears when the app opens
This is the Homepage that appears after I leave the Media Main Activity
Here is my Java Code below:
public class media_main extends AppCompatActivity {
DrawerLayout drawerLayout;
ActionBarDrawerToggle actionBarDrawerToggle;
FragmentTransaction fragmentTransaction;
NavigationView navigationView;
ViewGroup container;
/**
* The {#link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a
* {#link FragmentPagerAdapter} derivative, which will keep every
* loaded fragment in memory. If this becomes too memory intensive, it
* may be best to switch to a
* {#link android.support.v4.app.FragmentStatePagerAdapter}.
*/
private SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {#link ViewPager} that will host the section contents.
*/
private ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.media_main_fragment);
final TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setVisibility(View.VISIBLE);
if (findViewById(R.id.tabs) != null)
// However, if we're being restored from a previous state,
// then we don't need to do anything and should return or else
// we could end up with overlapping fragments.
if (savedInstanceState != null)
return;
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ViewGroup mContainer = container;
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close);
drawerLayout.addDrawerListener(actionBarDrawerToggle);
fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.add(R.id.main_container, new HomeFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("Drift Fan");
navigationView = (NavigationView) findViewById(R.id.navigation_view);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.Home:
fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_container, new HomeFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("Home Fragment");
item.setCheckable(true);
tabLayout.setVisibility(View.GONE);
drawerLayout.closeDrawers();
break;
case R.id.my_account:
fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_container, new myAccountFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("My Account");
item.setCheckable(true);
drawerLayout.closeDrawers();
break;
case R.id.nav_about:
fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_container, new AboutDriftingFragment());
findViewById(R.id.tabs).setVisibility(View.GONE);
fragmentTransaction.commit();
getSupportActionBar().setTitle("About Drifting");
item.setCheckable(true);
drawerLayout.closeDrawers();
break;
case R.id.nav_shop:
fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_container, new ShopFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("Shop");
item.setCheckable(true);
drawerLayout.closeDrawers();
break;
case R.id.nav_media:
fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_container, new ShopFragment());
fragmentTransaction.commit();
getSupportActionBar().setTitle("Shop");
item.setCheckable(true);
drawerLayout.closeDrawers();
break;
}
return false;
}
private void finish(media_main media_main) {
}
});
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
tabLayout.setupWithViewPager(mViewPager);
}
#Override
protected void onPostCreate(#Nullable Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
actionBarDrawerToggle.syncState();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_media_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);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
public PlaceholderFragment() {
}
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_media_main, container, false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
media_gallery tb1 = new media_gallery();
return tb1;
case 1:
media_video tb2 = new media_video();
return tb2;
case 2:
media_podcasts tb3 = new media_podcasts();
return tb3;
}
return null;
}
#Override
public int getCount() {
// Show 3 total pages.
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Gallery";
case 1:
return "Video";
case 2:
return "Podcasts";
}
return null;
}}
}
And here is my XML Code Below:
fragment_media_main
<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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".media_main$PlaceholderFragment">
<TextView
android:id="#+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
media_main_fragment
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".media_main"
android:id="#+id/drawer_layout">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/appbar_padding_top"
android:theme="#style/AppTheme.AppBarOverlay"
android:background="#color/splash"
android:animateLayoutChanges="true">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/splash"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/splash"
android:visibility="gone"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:layout_height="wrap_content"
android:layout_width="match_parent"
layout="#layout/toolbar_layout"
/>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/main_container">
</FrameLayout>
</LinearLayout>
<android.support.design.widget.NavigationView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/navigation_view"
android:layout_gravity="start"
android:background="#000"
app:itemTextColor="#color/colorPrimary"
app:itemIconTint="#fff"
app:menu="#menu/drawer_menu"
app:theme="#style/NavigationViewStyle"
app:headerLayout="#layout/navigation_drawer_header">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
I am beginner programmer and just resent started android developing.
Watched many answers and couldn't find answer witch would fit for me.
I have added back arrow button in my action bar, but couldn't figure out how to add navigation to first loaded screen.
MainActivity.java
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);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null){
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
final 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);
getSupportFragmentManager().addOnBackStackChangedListener(new FragmentManager.OnBackStackChangedListener() {
#Override
public void onBackStackChanged() {
toggle.setDrawerIndicatorEnabled(getSupportFragmentManager().getBackStackEntryCount() == 0);
}
});
}
#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;
}
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
Toast.makeText(getApplicationContext(),"Back button clicked", Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
TextView text = (TextView) findViewById(R.id.container_text);
Fragment fragment = null;
if (id == R.id.nav_about) {
fragment = DemoFragment.newInstance("about");
text.setText("1");
} else if (id == R.id.nav_settings) {
fragment = DemoFragment.newInstance("nav settings");
}
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.container, fragment)
.addToBackStack(fragment.getClass().getSimpleName())
.commit();
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
DemoFragment.java
public class DemoFragment extends Fragment {
public static final String TEXT = "text";
public static DemoFragment newInstance(String text) {
Bundle args = new Bundle();
args.putString(TEXT, text);
DemoFragment fragment = new DemoFragment();
fragment.setArguments(args);
return fragment;
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_demo, container, false);
String text = getArguments().getString(TEXT);
return view;
}
AndroidManifest.xml
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
activity_main.xml
<android.support.v4.widget.DrawerLayout 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:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<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:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
app_bar_main.xml
<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"
android:fitsSystemWindows="true"
tools:context="lt.simbal.drawer.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="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include
android:id="#+id/container"
layout="#layout/content_main" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
content_main.xml
<FrameLayout 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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="lt.simbal.drawer.MainActivity"
tools:showIn="#layout/app_bar_main">
<TextView
android:id="#+id/container_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="MAIN_ACTIVITY" />
fragment_demo.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/text"
android:layout_width="match_parent"
android:layout_height="match_parent" />
nav_header_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="#dimen/nav_header_height"
android:background="#drawable/side_nav_bar"
android:gravity="bottom"
android:orientation="vertical"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:theme="#style/ThemeOverlay.AppCompat.Dark">
<ImageView
android:id="#+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="#dimen/nav_header_vertical_spacing"
android:src="#android:drawable/sym_def_app_icon" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/nav_header_vertical_spacing"
android:text="Android Studio"
android:textAppearance="#style/TextAppearance.AppCompat.Body1" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="android.studio#android.com" />
activity_main_drawer.xml
<group android:checkableBehavior="single">
<item
android:id="#+id/nav_about"
android:icon="#drawable/ic_menu_camera"
android:title="#string/about" />
<item
android:id="#+id/nav_settings"
android:icon="#drawable/ic_menu_manage"
android:title="#string/settings" />
</group>
You need to call setHomeAsUpIndicator & setDisplayHomeAsUpEnabled
Set an alternate drawable to display next to the icon/logo/title when
DISPLAY_HOME_AS_UP is enabled. This can be useful if you are using
this mode to display an alternate selection for up navigation, such as
a sliding drawer.
ActionBar actionBar = getSupportActionBar();
if (actionBar != null)
{
......
actionBar.setDisplayHomeAsUpEnabled(true); //Set this to true if selecting "home" returns up by a single level in your UI rather than back to the top level or front page.
actionBar.setHomeAsUpIndicator(R.drawable.Your_Icon); // set a custom icon for the default home button
}
Now
For this handling need to override onOptionsItemSelected(MenuItem item) method in your Activity .
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case R.id.home:
// Add your LOGIC Here
break;
default:
return super.onOptionsItemSelected(item);
}
return true;
}
Alright make sure u do declare activity layout as below -
<activity
android:name="com.example.myfirstapp.DisplayMessageActivity"
android:parentActivityName="com.example.myfirstapp.MainActivity" >
<!-- The meta-data element is needed for versions lower than 4.1 -->
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.myfirstapp.MainActivity" />
</activity>
Now in every activity add below code
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
add below code in onCreate
final ActionBar actionBar = getSupportActionBar();
if (actionBar != null){
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeAsUpIndicator(R.drawable.back_dark);
}
R.drawable.back_dark is back button image
remove this actionBar.setHomeButtonEnabled(true); from your code
EDITED: found one thing, change below method
#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;
//}
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
Toast.makeText(getApplicationContext(),"Back button clicked", Toast.LENGTH_SHORT).show();
return true;
case R.id.action_settings:
return true;
}
return super.onOptionsItemSelected(item);
}
otherwise your all code is perfect! no need to change naythig
#JonasSeputis: i have use your activity and run in android device its showing toast "Back button clicked" check below code and comment other code for sometime
public class MainActivity extends AppCompatActivity {
private DrawerLayout mDrawerLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
}
/*DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
final 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);
getSupportFragmentManager().addOnBackStackChangedListener(new FragmentManager.OnBackStackChangedListener() {
#Override
public void onBackStackChanged() {
toggle.setDrawerIndicatorEnabled(getSupportFragmentManager().getBackStackEntryCount() == 0);
}
});*/
}
#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;
}*/
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
Toast.makeText(getApplicationContext(), "Back button clicked", Toast.LENGTH_SHORT).show();
return true;
case R.id.action_settings:
return true;
}
return super.onOptionsItemSelected(item);
}
}
In your
#Override
public boolean onOptionsItemSelected(MenuItem item){
if (id == android.R.id.home){
// add intent to class you wish to navigate
Intent i = new Intent("com.your.package.classname");
startActivity(i);
}
}
just add this line in
onCreate:
getSupportActionBar().setDisplayHomeAsUpEnabled(true);