Develop Reference

java.lang.IllegalStateException - Can not perform this action after onSaveInstanceState

I am receiving the following crash reports from fabric.io (mainly after I added a SettingsActivity which can be loaded from my SlidingMenue to my App):
The code of to post the pendingRunnable has not been changed recently, anyway it started to receive the exceptions.
Fatal Exception: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1842)
at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1860)
at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:650)
at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:609)
at my.app.ui.activity.MainActivity$2.run(MainActivity.java:271)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5530)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:733)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:623)
This is my MainActivity.java
public class MainActivity extends AppCompatActivity implements MyAppFragment.OnListFragmentInteractionListener, AsyncResponse {
private MyAppDatabaseHandler myAppDatabaseHandler;
private SharedPreferences sharedpreferences;
private SharedPreferences defaultPrefs;
private FragmentA fragmentA;
public static boolean activityVisible = true;
private boolean isAttached;
private NavigationView navigationView;
private DrawerLayout drawer;
private View navHeader;
private Toolbar toolbar;
// index to identify current nav menu item
private static int navItemIndex = 0;
public static String CURRENT_TAG = MyAppConstants.TAG_A;
// toolbar titles respected to selected nav menu item
private String[] activityTitles;
// flag to load home fragment when user presses back key
private boolean shouldLoadHomeFragOnBackPress = true;
private Handler mHandler;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.myAppDatabaseHandler= MyAppDatabaseHandler.getInstance(this);
defaultPrefs = PreferenceManager.getDefaultSharedPreferences(this);
sharedpreferences = getSharedPreferences(MyAppConstants.PREFERENCES, Context.MODE_PRIVATE);
setContentView(R.layout.activity_main);
fragmentA = new FragmentA();
// Init UI
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mHandler = new Handler();
drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
navigationView = (NavigationView) findViewById(R.id.nav_view);
// load toolbar titles from string resources
activityTitles = getResources().getStringArray(R.array.sliding_menu_item_activity_titles);
// load nav menu header data
loadNavHeader();
// initializing navigation menu
setUpNavigationView();
if (savedInstanceState == null) {
navItemIndex = 0;
CURRENT_TAG = MyAppConstants.TAG_A;
loadNextFragment();
}
}
/***
* Load navigation menu header information
* like background image, profile image
* name, website, notifications action view (dot)
*/
private void loadNavHeader() {
// Init NavigationHeader
}
/***
* Returns respected fragment that user
* selected from navigation menu
*/
private void loadNextFragment() {
// if user select the current navigation menu again, don't do anything
// just close the navigation drawer
if (getSupportFragmentManager().findFragmentByTag( CURRENT_TAG) != null && navItemIndex != 4) {
drawer.closeDrawers();
return;
}
if (navItemIndex == 4) {
startActivity(new Intent(MainActivity.this, SettingsActivity.class));
} else {
// set toolbar title
setToolbarTitle();
// Sometimes, when fragment has huge data, screen seems hanging
// when switching between navigation menus
// So using runnable, the fragment is loaded with cross fade effect
// This effect can be seen in GMail app
Runnable mPendingRunnable = new Runnable() {
#Override
public void run() {
// update the activity_main_header_with_item content by replacing fragments
Fragment fragment = getNextFragment();
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out);
fragmentTransaction.replace(R.id.frame, fragment, CURRENT_TAG);
fragmentTransaction.commit();
}
};
// If mPendingRunnable is not null, then add to the message queue
if (mPendingRunnable != null) {
mHandler.post(mPendingRunnable);
}
}
//Closing drawer on item click
drawer.closeDrawers();
// refresh toolbar menu
invalidateOptionsMenu();
}
private Fragment getNextFragment() {
switch (navItemIndex) {
case 0:
// home
return this.fragmentA;
case 1:
FragmentB fragmentB = new FragmentB();
return fragmentB;
case 2:
// About Fragment
AboutFragment aboutFragment = new AboutFragment();
return aboutFragment;
case 3:
// Licence Fragment
LicenceFragment licenceFragment = new LicenceFragment();
return licenceFragment;
default:
return this.fragmentA;
}
}
private void setToolbarTitle() {
getSupportActionBar().setTitle(activityTitles[navItemIndex]);
}
private void setUpNavigationView() {
//Setting Navigation View Item Selected Listener to handle the item click of the navigation menu
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
// This method will trigger on item Click of navigation menu
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
//Check to see which item was being clicked and perform appropriate action
switch (menuItem.getItemId()) {
//Replacing the activity_main_header_with_item content with ContentFragment Which is our Inbox View;
case R.id.nav_home:
navItemIndex = 0;
CURRENT_TAG = MyAppConstants.TAG_A;
break;
case R.id.nav_recently:
navItemIndex = 1;
CURRENT_TAG = MyAppConstants.TAG_B;
break;
case R.id.nav_about_us:
navItemIndex = 2;
CURRENT_TAG = MyAppConstants.TAG_ABOUT;
break;
case R.id.nav_licences:
navItemIndex = 3;
CURRENT_TAG = MyAppConstants.TAG_LICENCES;
break;
case R.id.nav_settings:
navItemIndex = 4;
// do not set CURRENT_TAG
break;
default:
navItemIndex = 0;
}
loadNextFragment();
return true;
}
});
ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.openDrawer, R.string.closeDrawer) {
#Override
public void onDrawerClosed(View drawerView) {
// Code here will be triggered once the drawer closes as we dont want anything to happen so we leave this blank
super.onDrawerClosed(drawerView);
}
#Override
public void onDrawerOpened(View drawerView) {
// Code here will be triggered once the drawer open as we dont want anything to happen so we leave this blank
super.onDrawerOpened(drawerView);
}
};
//Setting the actionbarToggle to drawer layout
drawer.setDrawerListener(actionBarDrawerToggle);
//calling sync state is necessary or else your hamburger icon wont show up
actionBarDrawerToggle.syncState();
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawers();
return;
}
// This code loads home fragment when back key is pressed
// when user is in other fragment than home
if (shouldLoadHomeFragOnBackPress && CURRENT_TAG != MyAppConstants.TAG_A) {
// checking if user is on other navigation menu
// rather than home
if (navItemIndex != 0) {
navItemIndex = 0;
CURRENT_TAG = MyAppConstants.TAG_A;
loadNextFragment();
return;
}
}
finish();
super.onBackPressed();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main_header_with_item, menu);
// Disable Player Icon in case no player is found on device
Intent intent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, MyAppConstants.MUSIC_APP);
List<ResolveInfo> activities = getPackageManager().queryIntentActivities(intent, 0);
if(activities == null || activities.size() <= 0) {
MenuItem player = menu.findItem(R.id.player);
if(player != null){
player.setVisible(false);
}
}
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
return super.onOptionsItemSelected(item);
}
public void notifyOnDelete(View v) {
myAppDatabaseHandler.deleteAll();
}
#Override
public void onListFragmentInteraction(Song item) {
}
#Override
public void processFinish(String output) {
if (isAttached) {
...
}
}
#Override
public void onAttachedToWindow() {
isAttached = true;
super.onAttachedToWindow();
}
#Override
public void onDetachedFromWindow() {
isAttached = false;
super.onDetachedFromWindow();
}
#Override
public void onResume() {
activityVisible = true;
updateFragmentA();
super.onResume();
}
#Override
public void onPause() {
activityVisible = false;
super.onPause();
}
#Override
protected void onDestroy() {
super.onDestroy();
}
#Override
protected void onStart() {
super.onStart();
}
public void updateFragmentA() {
if (CURRENT_TAG == MyAppConstants.TAG_A) {
Timber.i( "updating FragmentA");
fragmentA.swap();
}
}
}
Any ideas about the cause of this issue?

Try this first setContentView(R.layout.activity_main); than perform your action
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.myAppDatabaseHandler= MyAppDatabaseHandler.getInstance(this);
defaultPrefs = PreferenceManager.getDefaultSharedPreferences(this);
sharedpreferences = getSharedPreferences(MyAppConstants.PREFERENCES, Context.MODE_PRIVATE);

Is There any Possible to Achieve Use SlideMenu With TabView In Android Studio

Actually i'm designing one app now.
Slide menu control, this menu have 5 categories like 5 fragments.
Each fragment have different different datas.I implemented slide menu also working perfectly.
Here first fragment is home fragment,In that i need to use tab swipe view control i mean two tabs will be there like tab names recent and all tabs.
So when i press recent tab needs to show something and when i press all tab needs to show something.
But here i don't know how to use i researched for lot but i didn't get those.
What i exactly need is in slide menu home fragment i need tab based fragment
For your reference this screen shot
I need those codes please.And let me know is it possible or not.
Thanks in advance
this is my home fragment
public class HomeFragment extends Fragment {
View view;
private TabLayout tabLayout;
private ViewPager viewPager;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
view = inflater.inflate(R.layout.fragment_home, container, false);
viewPager = (ViewPager) view.findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) view.findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
return view;
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new
ViewPagerAdapter(getFragmentManager());
adapter.addFragment(new MoviesFragment(), "ONE");
adapter.addFragment(new PhotosFragment(), "TWO");
adapter.addFragment(new SettingsFragment(), "THREE");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
These Fragments are for tab
adapter.addFragment(new MoviesFragment(), "ONE");
adapter.addFragment(new PhotosFragment(), "TWO");
adapter.addFragment(new SettingsFragment(), "THREE");
all are just empty fragments..thanks in advance
this is my main activity
public class MainActivity extends AppCompatActivity {
private NavigationView navigationView;
private DrawerLayout drawer;
private View navHeader;
private ImageView imgNavHeaderBg, imgProfile;
private TextView txtName, txtWebsite;
private Toolbar toolbar;
private FloatingActionButton fab;
// urls to load navigation header background image
// and profile image
private static final String urlNavHeaderBg = "http://api.androidhive.info/images/nav-menu-header-bg.jpg";
private static final String urlProfileImg = "https://lh3.googleusercontent.com/eCtE_G34M9ygdkmOpYvCag1vBARCmZwnVS6rS5t4JLzJ6QgQSBquM0nuTsCpLhYbKljoyS-txg";
// index to identify current nav menu item
public static int navItemIndex = 0;
// tags used to attach the fragments
private static final String TAG_HOME = "home";
private static final String TAG_PHOTOS = "photos";
private static final String TAG_MOVIES = "movies";
private static final String TAG_NOTIFICATIONS = "notifications";
private static final String TAG_SETTINGS = "settings";
public static String CURRENT_TAG = TAG_HOME;
// toolbar titles respected to selected nav menu item
private String[] activityTitles;
// flag to load home fragment when user presses back key
private boolean shouldLoadHomeFragOnBackPress = true;
private Handler mHandler;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mHandler = new Handler();
drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
navigationView = (NavigationView) findViewById(R.id.nav_view);
fab = (FloatingActionButton) findViewById(R.id.fab);
// Navigation view header
navHeader = navigationView.getHeaderView(0);
txtName = (TextView) navHeader.findViewById(R.id.name);
txtWebsite = (TextView) navHeader.findViewById(R.id.website);
imgNavHeaderBg = (ImageView) navHeader.findViewById(R.id.img_header_bg);
imgProfile = (ImageView) navHeader.findViewById(R.id.img_profile);
// load toolbar titles from string resources
activityTitles = getResources().getStringArray(R.array.nav_item_activity_titles);
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();
}
});
// load nav menu header data
loadNavHeader();
// initializing navigation menu
setUpNavigationView();
if (savedInstanceState == null) {
navItemIndex = 0;
CURRENT_TAG = TAG_HOME;
loadHomeFragment();
}
}
/***
* Load navigation menu header information
* like background image, profile image
* name, website, notifications action view (dot)
*/
private void loadNavHeader() {
// name, website
txtName.setText("Ravi Tamada");
txtWebsite.setText("www.androidhive.info");
// loading header background image
Glide.with(this).load(urlNavHeaderBg)
.crossFade()
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imgNavHeaderBg);
// Loading profile image
Glide.with(this).load(urlProfileImg)
.crossFade()
.thumbnail(0.5f)
.bitmapTransform(new CircleTransform(this))
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imgProfile);
// showing dot next to notifications label
navigationView.getMenu().getItem(3).setActionView(R.layout.menu_dot);
}
/***
* Returns respected fragment that user
* selected from navigation menu
*/
private void loadHomeFragment() {
// selecting appropriate nav menu item
selectNavMenu();
// set toolbar title
setToolbarTitle();
// if user select the current navigation menu again, don't do anything
// just close the navigation drawer
if (getSupportFragmentManager().findFragmentByTag(CURRENT_TAG) != null) {
drawer.closeDrawers();
// show or hide the fab button
toggleFab();
return;
}
// Sometimes, when fragment has huge data, screen seems hanging
// when switching between navigation menus
// So using runnable, the fragment is loaded with cross fade effect
// This effect can be seen in GMail app
Runnable mPendingRunnable = new Runnable() {
#Override
public void run() {
// update the main content by replacing fragments
Fragment fragment = getHomeFragment();
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.setCustomAnimations(android.R.anim.fade_in,
android.R.anim.fade_out);
fragmentTransaction.replace(R.id.frame, fragment, CURRENT_TAG);
fragmentTransaction.commitAllowingStateLoss();
}
};
// If mPendingRunnable is not null, then add to the message queue
if (mPendingRunnable != null) {
mHandler.post(mPendingRunnable);
}
// show or hide the fab button
toggleFab();
//Closing drawer on item click
drawer.closeDrawers();
// refresh toolbar menu
invalidateOptionsMenu();
}
private Fragment getHomeFragment() {
switch (navItemIndex) {
case 0:
// home
HomeFragment homeFragment = new HomeFragment();
return homeFragment;
case 1:
// photos
PhotosFragment photosFragment = new PhotosFragment();
return photosFragment;
case 2:
// movies fragment
MoviesFragment moviesFragment = new MoviesFragment();
return moviesFragment;
case 3:
// notifications fragment
NotificationsFragment notificationsFragment = new NotificationsFragment();
return notificationsFragment;
case 4:
// settings fragment
SettingsFragment settingsFragment = new SettingsFragment();
return settingsFragment;
default:
return new HomeFragment();
}
}
private void setToolbarTitle() {
getSupportActionBar().setTitle(activityTitles[navItemIndex]);
}
private void selectNavMenu() {
navigationView.getMenu().getItem(navItemIndex).setChecked(true);
}
private void setUpNavigationView() {
//Setting Navigation View Item Selected Listener to handle the item click of the navigation menu
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
// This method will trigger on item Click of navigation menu
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
//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.home:
navItemIndex = 0;
CURRENT_TAG = TAG_HOME;
break;
case R.id.nav_photos:
navItemIndex = 1;
CURRENT_TAG = TAG_PHOTOS;
break;
case R.id.nav_movies:
navItemIndex = 2;
CURRENT_TAG = TAG_MOVIES;
break;
case R.id.nav_notifications:
navItemIndex = 3;
CURRENT_TAG = TAG_NOTIFICATIONS;
break;
case R.id.nav_settings:
navItemIndex = 4;
CURRENT_TAG = TAG_SETTINGS;
break;
case R.id.nav_about_us:
// launch new intent instead of loading fragment
startActivity(new Intent(MainActivity.this, AboutUsActivity.class));
drawer.closeDrawers();
return true;
case R.id.nav_privacy_policy:
// launch new intent instead of loading fragment
startActivity(new Intent(MainActivity.this, PrivacyPolicyActivity.class));
drawer.closeDrawers();
return true;
default:
navItemIndex = 0;
}
//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);
}
menuItem.setChecked(true);
loadHomeFragment();
return true;
}
});
ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.openDrawer, R.string.closeDrawer) {
#Override
public void onDrawerClosed(View drawerView) {
// Code here will be triggered once the drawer closes as we dont want anything to happen so we leave this blank
super.onDrawerClosed(drawerView);
}
#Override
public void onDrawerOpened(View drawerView) {
// Code here will be triggered once the drawer open as we dont want anything to happen so we leave this blank
super.onDrawerOpened(drawerView);
}
};
//Setting the actionbarToggle to drawer layout
drawer.setDrawerListener(actionBarDrawerToggle);
//calling sync state is necessary or else your hamburger icon wont show up
actionBarDrawerToggle.syncState();
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawers();
return;
}
// This code loads home fragment when back key is pressed
// when user is in other fragment than home
if (shouldLoadHomeFragOnBackPress) {
// checking if user is on other navigation menu
// rather than home
if (navItemIndex != 0) {
navItemIndex = 0;
CURRENT_TAG = TAG_HOME;
loadHomeFragment();
return;
}
}
super.onBackPressed();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
// show menu only when home fragment is selected
if (navItemIndex == 0) {
getMenuInflater().inflate(R.menu.main, menu);
}
// when fragment is notifications, load the menu created for notifications
if (navItemIndex == 3) {
getMenuInflater().inflate(R.menu.notifications, 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_logout) {
Toast.makeText(getApplicationContext(), "Logout user!", Toast.LENGTH_LONG).show();
return true;
}
// user is in notifications fragment
// and selected 'Mark all as Read'
if (id == R.id.action_mark_all_read) {
Toast.makeText(getApplicationContext(), "All notifications marked as read!", Toast.LENGTH_LONG).show();
}
// user is in notifications fragment
// and selected 'Clear All'
if (id == R.id.action_clear_notifications) {
Toast.makeText(getApplicationContext(), "Clear all notifications!", Toast.LENGTH_LONG).show();
}
return super.onOptionsItemSelected(item);
}
// show or hide the fab
private void toggleFab() {
if (navItemIndex == 0)
fab.show();
else
fab.hide();
}
}

NavigationDrawer not show the view

I have a Navigation Drawer with Navigation View, there are four tabs, one of them is a fragment, which includes ViewPager, ie is a host for the other fragments. Everything works fine, but when switched from fragment with ViewPager any other fragment of NavigationDrawer shows nothing. Checked logs, onCreate, onCreateView these fragments are called, but why does not display... Who knows why?
NavigationDrawer
public class NavigationDrawerHost extends AppCompatActivity implements
NavigationView.OnNavigationItemSelectedListener {
//буду использовать эту активность как хост под все фрагменты, чтобы верно работал мой drawer!
public static String WHERE_FROM = NavigationDrawerHost.class.getSimpleName();
public static Toolbar toolbar;
public static ProgressBar progressBar;
private DrawerLayout drawer;
private NavigationView navigationView;
private ActionBarDrawerToggle drawerToggle;
private int navItemId;
private static final String NAV_ITEM_ID = "NAV_ITEM_ID";
private TextView userFirstNameTextView, userLastNameTextView;
private ImageView userPhotoImageView;
private VKAccessToken access_token; //токен это информация о правах доступа
private VKApiUser user; //текущий пользователь
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.navigation_drawer_host);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
// Find the toolbar view inside the activity layout
toolbar = (Toolbar) findViewById(R.id.toolbar);
// Set a Toolbar to replace the ActionBar.
setSupportActionBar(toolbar);
//setTitle(R.string.drawer_menu_posts);
// load saved navigation state if present
if (null == savedInstanceState) {
navItemId = R.id.posts_fragment;
} else {
navItemId = savedInstanceState.getInt(NAV_ITEM_ID);
}
// Find our drawer view
navigationView = (NavigationView) findViewById(R.id.nvView);
navigationView.setNavigationItemSelectedListener(this);
// select the correct nav menu item
navigationView.getMenu().findItem(navItemId).setChecked(true);
// если хотим добавить какие-то элементы в наш header,
// то нужно добавить их в layout, а затем инициализировать нижеприведенным способом
// Inflate the header view at runtime
View headerLayout = navigationView.inflateHeaderView(R.layout.nav_header);
// We can now look up items within the header if needed
userFirstNameTextView = (TextView) headerLayout.findViewById(R.id.user_first_name);
userLastNameTextView = (TextView) headerLayout.findViewById(R.id.user_last_name);
userPhotoImageView = (ImageView) headerLayout.findViewById(R.id.user_photo);
drawerToggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.drawer_open, R.string.drawer_close);
// Tie DrawerLayout events to the ActionBarToggle
drawer.setDrawerListener(drawerToggle);
drawerToggle.syncState();
selectItem(navItemId);
}
#Override
protected void onSaveInstanceState(final Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(NAV_ITEM_ID, navItemId);
}
// Menu icons are inflated just as they were with actionbar
#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_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_exit:
//quitDialog();
VKSdk.logout();
finish();
return true;
default:
return drawerToggle.onOptionsItemSelected(item) || super.onOptionsItemSelected(item);
}
}
// Make sure this is the method with just `Bundle` as the signature
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggles
drawerToggle.onConfigurationChanged(newConfig);
}
private void selectItem(final int itemId) {
// perform the actual navigation logic, updating the main content fragment etc
// Create a new fragment and specify the planet to show based on position
Fragment fragment = null;
Class fragmentClass = null;
switch (itemId) {
case R.id.posts_fragment:
fragmentClass = PostsFragment.class;
fragment = new PostsFragment();
break;
case R.id.albums_fragment:
fragmentClass = FragmentTest.class;
fragment = new FragmentTest();
break;
case R.id.friends_fragment:
fragmentClass = FragmentTest.class;
fragment = new FragmentTest();
break;
case R.id.likes_fragment:
fragmentClass = LikesFragment.class;
fragment = new LikesFragment();
break;
/*default:
fragmentClass = PostsFragment.class;*/
}
/*try {
fragment = (Fragment) fragmentClass.newInstance();
} catch (Exception e) {
e.printStackTrace();
}*/
// Insert the fragment by replacing any existing fragment
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.replace(R.id.fragment_container, fragment);
transaction.addToBackStack(null);
transaction.commit();
drawer.closeDrawers();
}
#Override
public boolean onNavigationItemSelected(final MenuItem item) {
// update highlighted item in the navigation menu
item.setChecked(true);
setTitle(item.getTitle());
navItemId = item.getItemId();
// allow some time after closing the drawer before performing real navigation
// so the user can see what is happening
drawer.closeDrawer(GravityCompat.START);
selectItem(item.getItemId());
return true;
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else if (getSupportFragmentManager().getBackStackEntryCount() == 0) {
quitDialog();
} else {
getSupportFragmentManager().popBackStack();
}
}
private void quitDialog() {
AlertDialog.Builder quitDialog = new AlertDialog.Builder(this);
quitDialog.setTitle("Вы хотите выйти?");
quitDialog.setPositiveButton("Да", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
//стираем БД
Delete.tables(PostTable.class, PictureTable.class, PostTableMyLikes.class, PictureTableMyLikes.class);
FlowManager.getDatabase(WallDatabase.DB_NAME).reset(NavigationDrawerHost.this);
FlowManager.getDatabase(WallDatabaseMyLikes.DB_NAME).reset(NavigationDrawerHost.this);
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
});
quitDialog.setNegativeButton("Нет",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
});
quitDialog.show();
}
}
ViewPager host for fragments, which needs to display through ViewPager
//этот фрагмент является хостом для MyLikesFragment и FriendLikesFragment, так же тут содержатся табы
public class LikesFragment extends Fragment {
public static String WHERE_FROM_FRIENDS_LIKES = LikesFragment.class.getSimpleName() + "_FRIENDSLIKES";
private ViewPager viewPager;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.likes_fragment, container, false);
TabLayout tabLayout = (TabLayout) v.findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText("Мои лайки"));
tabLayout.addTab(tabLayout.newTab().setText("Лайки друзей"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
viewPager = (ViewPager) v.findViewById(R.id.view_pager);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
viewPager.setAdapter(new LikesPagerAdapter(getChildFragmentManager()));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
return v;
}
public static class LikesPagerAdapter extends FragmentPagerAdapter {
public LikesPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return 2;
}
//сделано так, чтобы передавать те аргументы, от которых будет зависеть функционал фрагмента
#Override
public Fragment getItem(int position) {
return (position == 0) ? new MyLikesPostsFragment() : new PostsFragment();
}
#Override
public CharSequence getPageTitle(int position) {
return (position == 0) ? "Мои лайки" : "Лайки друзей";
}
}
}
P.S. And after going to the same fragment ViewPager select several items in drawer, this should not be

The problem was that I called adapter.notifyDataSetChanged() in the main thread and onPostExecute() in AsyncTask. My carelessness...

How to Call Navigation Drawer Fragment from Activity?

I have a Navigation Drawer which is created by Android studio. I Called a Activity from the Navigation Drawer.In that Activity, the navigation drawer is not showing up ?
How can i Call the Navigation Drawer from the below Activity ?
PlayerActivity
import com.google.android.youtube.player.YouTubeInitializationResult;
import com.google.android.youtube.player.YouTubeStandalonePlayer;
public class PlayerActivity extends Activity {
private static final int REQ_START_STANDALONE_PLAYER = 1;
private static final int REQ_RESOLVE_SERVICE_MISSING = 2;
private static final String PLAYLIST_ID = "PL5BxbbBpI7r";
public static final String DEVELOPER_KEY = "AIwXEZQLS-U";
private NavigationDrawerFragment mNavigationDrawerFragment;
private CharSequence mTitle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_player);
}
public void Play(View v) {
int startIndex = 0;
int startTimeMillis = 0;
boolean autoplay = true;
boolean lightboxMode = false;
Intent intent = null;
intent = YouTubeStandalonePlayer.createPlaylistIntent(this, DEVELOPER_KEY,
PLAYLIST_ID, startIndex, startTimeMillis, autoplay, lightboxMode);
if (intent != null) {
if (canResolveIntent(intent)) {
startActivityForResult(intent, REQ_START_STANDALONE_PLAYER);
} else {
// Could not resolve the intent - must need to install or update the YouTube API service.
YouTubeInitializationResult.SERVICE_MISSING
.getErrorDialog(this, REQ_RESOLVE_SERVICE_MISSING).show();
}
}
}
private boolean canResolveIntent(Intent intent) {
List<ResolveInfo> resolveInfo = getPackageManager().queryIntentActivities(intent, 0);
return resolveInfo != null && !resolveInfo.isEmpty();
}
}
Navigation.java
public class Navigation extends Activity
implements HomeFragment.OnFragmentInteractionListener, NavigationDrawerFragment.NavigationDrawerCallbacks, NewsFragment.OnFragmentInteractionListener{
#Override
public void onFragmentInteraction(Uri uri) {
}
private NavigationDrawerFragment mNavigationDrawerFragment;
private CharSequence mTitle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_navigation);
mNavigationDrawerFragment = (NavigationDrawerFragment)getFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
#Override
public void onNavigationDrawerItemSelected(int position) {
// update the main content by replacing fragments
FragmentManager fragmentManager = getFragmentManager();
switch(position){
case 0:
HomeFragment homeFragment = new HomeFragment();
fragmentManager.beginTransaction().replace(R.id.container, HomeFragment.newInstance("",""))
.commit();
break;
case 1:
NewsFragment newsFragment = new NewsFragment();
fragmentManager.beginTransaction()
.replace(R.id.container, NewsFragment.newInstance("",""))
.commit();
break;
case 2:
Intent intent= new Intent(this,PlayerActivity.class);
startActivity(intent);
break;
}
}
public void onSectionAttached(int number) {
switch (number) {
case 1:
mTitle = getString(R.string.title_section1);
break;
case 2:
mTitle = getString(R.string.title_section2);
break;
case 3:
mTitle = getString(R.string.title_section3);
break;
}
}
public void restoreActionBar() {
ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(mTitle);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.navigation, menu);
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
#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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
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";
/**
* 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;
}
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_navigation, container, false);
return rootView;
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((Navigation) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}

NavigationDrawer is meant to work with fragments, because the drawer is a fragment itself. You can access that drawer as long as you stay in the same Activity but once you change Activity you can't access to the drawer (Unless you create another instance of the drawer, but then you are missing the whole point of it). In order to accomplish what you want I'd recommend two things.
1) Instead of launching a new Activity make PlayerActivity a fragment.
2) Create a BaseActivity with a drawer and make all your other Activities extend it, that way you only have one single reference to the drawer in your project.

You should use fragment instead of activity! You should have two fragments as default when you create the project. One is for navigation drawer, and the other one is for content. You should replace that content fragment with your new content which you put in second activity..

You need to do the same thing in the PlayerActivity
mNavigationDrawerFragment = (NavigationDrawerFragment)getFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
Also put navigation drawer inside R.layout.activity_player.
Like you did in R.layout.activity_navigation

How to navigate to different activities through the navigation drawer

I have a problem in which I know how to add a navigation drawer. However, I do not know how to link my activities with it e.g. if I click the help button on my navigation drawer how do I take it to the help page?
This is my MainActivity:
public class MainActivity extends ActionBarActivity implements
NavigationDrawerFragment.NavigationDrawerCallbacks {
/**
* Fragment managing the behaviours, interactions and presentation of the
* navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
/**
* Used to store the last screen title. For use in
* {#link #restoreActionBar()}.
*/
private CharSequence mTitle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mNavigationDrawerFragment = (NavigationDrawerFragment) getSupportFragmentManager()
.findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
#Override
public void onNavigationDrawerItemSelected(int position) {
switch (position) {
case 0: {
Intent intent = new Intent(MainActivity.this, Bmi.class);
startActivity(intent);
break;
}
case 1:{
Intent intent = new Intent(MainActivity.this, CC.class);
startActivity(intent);
break;
}
case 2:{
// if this position is to add fragment
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager
.beginTransaction()
.replace(R.id.container,
PlaceholderFragment.newInstance(position + 1)).commit();
break;
}
default:
break;
}
}
public void onSectionAttached(int number) {
switch (number) {
case 1:
mTitle = getString(R.string.title_BMI);
break;
case 2:
mTitle = getString(R.string.title_CC);
break;
case 3:
mTitle = getString(R.string.title_W2E);
break;
case 4:
mTitle = getString(R.string.title_FC);
break;
case 5:
mTitle = getString(R.string.title_FB);
break;
case 6:
mTitle = getString(R.string.title_LOG);
break;
}
}
public void restoreActionBar() {
ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(mTitle);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.main, menu);
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
#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();
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";
/**
* 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;
}
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
TextView textView = (TextView) rootView
.findViewById(R.id.section_label);
textView.setText(Integer.toString(getArguments().getInt(
ARG_SECTION_NUMBER)));
return rootView;
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(getArguments().getInt(
ARG_SECTION_NUMBER));
}
}
}
and this is my navigation drawer fragment
public class NavigationDrawerFragment extends Fragment {
/**
* Remember the position of the selected item.
*/
private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position";
/**
* Per the design guidelines, you should show the drawer on launch until the user manually
* expands it. This shared preference tracks this.
*/
private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned";
/**
* A pointer to the current callback instance (the Activity).
*/
private NavigationDrawerCallbacks mCallbacks;
/**
* Helper component that ties the action bar to the navigation drawer.
*/
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private ListView mDrawerListView;
private View mFragmentContainerView;
private int mCurrentSelectedPosition = 0;
private boolean mFromSavedInstanceState;
private boolean mUserLearnedDrawer;
public NavigationDrawerFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Read in the flag indicating whether or not the user has demonstrated awareness of the
// drawer. See PREF_USER_LEARNED_DRAWER for details.
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity());
mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER, false);
if (savedInstanceState != null) {
mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION);
mFromSavedInstanceState = true;
}
// Select either the default item (0) or the last selected item.
selectItem(mCurrentSelectedPosition);
}
#Override
public void onActivityCreated (Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Indicate that this fragment would like to influence the set of actions in the action bar.
setHasOptionsMenu(true);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mDrawerListView = (ListView) inflater.inflate(
R.layout.fragment_navigation_drawer, container, false);
mDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
});
mDrawerListView.setAdapter(new ArrayAdapter<String>(
getActionBar().getThemedContext(),
android.R.layout.simple_list_item_1,
android.R.id.text1,
new String[]{
getString(R.string.title_BMI),
getString(R.string.title_CC),
getString(R.string.title_W2E),
getString(R.string.title_FC),
getString(R.string.title_FB),
getString(R.string.title_LOG),
}));
mDrawerListView.setItemChecked(mCurrentSelectedPosition, true);
return mDrawerListView;
}
public boolean isDrawerOpen() {
return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView);
}
/**
* Users of this fragment must call this method to set up the navigation drawer interactions.
*
* #param fragmentId The android:id of this fragment in its activity's layout.
* #param drawerLayout The DrawerLayout containing this fragment's UI.
*/
public void setUp(int fragmentId, DrawerLayout drawerLayout) {
mFragmentContainerView = getActivity().findViewById(fragmentId);
mDrawerLayout = drawerLayout;
// set a custom shadow that overlays the main content when the drawer opens
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
// set up the drawer's list view with items and click listener
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
// ActionBarDrawerToggle ties together the the proper interactions
// between the navigation drawer and the action bar app icon.
mDrawerToggle = new ActionBarDrawerToggle(
getActivity(), /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
R.string.navigation_drawer_open, /* "open drawer" description for accessibility */
R.string.navigation_drawer_close /* "close drawer" description for accessibility */
) {
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
if (!isAdded()) {
return;
}
getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if (!isAdded()) {
return;
}
if (!mUserLearnedDrawer) {
// The user manually opened the drawer; store this flag to prevent auto-showing
// the navigation drawer automatically in the future.
mUserLearnedDrawer = true;
SharedPreferences sp = PreferenceManager
.getDefaultSharedPreferences(getActivity());
sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).commit();
}
getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
};
// If the user hasn't 'learned' about the drawer, open it to introduce them to the drawer,
// per the navigation drawer design guidelines.
if (!mUserLearnedDrawer && !mFromSavedInstanceState) {
mDrawerLayout.openDrawer(mFragmentContainerView);
}
// Defer code dependent on restoration of previous instance state.
mDrawerLayout.post(new Runnable() {
#Override
public void run() {
mDrawerToggle.syncState();
}
});
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
private void selectItem(int position) {
mCurrentSelectedPosition = position;
if (mDrawerListView != null) {
mDrawerListView.setItemChecked(position, true);
}
if (mDrawerLayout != null) {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
// for the numbers bottom code fix now
if (mCallbacks != null) {
mCallbacks.onNavigationDrawerItemSelected(position);
}
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mCallbacks = (NavigationDrawerCallbacks) activity;
} catch (ClassCastException e) {
throw new ClassCastException("Activity must implement NavigationDrawerCallbacks.");
}
}
#Override
public void onDetach() {
super.onDetach();
mCallbacks = null;
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(STATE_SELECTED_POSITION, mCurrentSelectedPosition);
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Forward the new configuration the drawer toggle component.
mDrawerToggle.onConfigurationChanged(newConfig);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// If the drawer is open, show the global app actions in the action bar. See also
// showGlobalContextActionBar, which controls the top-left area of the action bar.
if (mDrawerLayout != null && isDrawerOpen()) {
inflater.inflate(R.menu.global, menu);
showGlobalContextActionBar();
}
super.onCreateOptionsMenu(menu, inflater);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
if (item.getItemId() == R.id.action_example) {
Toast.makeText(getActivity(), "Dont Forget To Rate The App", Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* Per the navigation drawer design guidelines, updates the action bar to show the global app
* 'context', rather than just what's in the current screen.
*/
private void showGlobalContextActionBar() {
ActionBar actionBar = getActionBar();
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setTitle(R.string.app_name);
}
private ActionBar getActionBar() {
return ((ActionBarActivity) getActivity()).getSupportActionBar();
}
/**
* Callbacks interface that all activities using this fragment must implement.
*/
public static interface NavigationDrawerCallbacks {
/**
* Called when an item in the navigation drawer is selected.
*/
void onNavigationDrawerItemSelected(int position);
}
}

You need to handle the drawer item clicks , in onNavigationDrawerItemSelected . When user select the item in Drawer list, onNavigationDrawerItemSelected will be called and depending on the item position you can start the Activity or add/replace the fragment with in the MainActivity .
#Override
public void onNavigationDrawerItemSelected(int position) {
// depending on the position in your drawer list change this
switch (position) {
case 0: {
Intent intent = new Intent(MainActivity.this, HelpActivity.class);
startActivity(intent);
break;
}
case 1:{
Intent intent = new Intent(MainActivity.this, SettingsActivity.class);
startActivity(intent);
break;
}
case 2:{
// if this position is to add fragment
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager
.beginTransaction()
.replace(R.id.container,
PlaceholderFragment.newInstance(position + 1)).commit();
break;
}
default:
break;
}