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Android Error [Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)]

I am trying to create a menu activity that uses a navigation drawer. At first I was using the getActionBar() and then i found out that i was supposed to change to getSupportActionBar() and extend AppCompactActivity which iI did but I still seem to be getting the same error:
java.lang.NullPointerException: Attempt to invoke virtual method 'void
android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)'
on a null object reference
could anyone know what could be causing the issue. (Please let me know if i should upload any code)
Here is my corresponding code:
mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
// nav drawer icons from resources
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
navDrawerItems = new ArrayList<NavDrawerItem>();
// adding nav drawer items to array
// Home
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
// Find People
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// Photos
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
// Communities, Will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1), true, "22"));
// Pages
navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
// What's hot, We will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1), true, "50+"));
// Recycle the typed array
navMenuIcons.recycle();
// setting the nav drawer list adapter
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setAdapter(adapter);
// enabling action bar app icon and behaving it as toggle button
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.app_name, // nav drawer open - description for accessibility
R.string.app_name // nav drawer close - description for accessibility
){
public void onDrawerClosed(View view) {
getSupportActionBar().setTitle(
Html.fromHtml("<font color=\"black\">" + mTitle + "</font>"));
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
getSupportActionBar().setTitle(
Html.fromHtml("<font color=\"black\">" + mDrawerTitle + "</font>"));
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
//displayView(0);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_menu, menu);
return true;
}

In your onCreate method do the following
public class ActivityDemo extends AppCompatActivity{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_demo);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
//other statements
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
this.finish();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
Corresponding xml should be having content like this
<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="com.dev.ActivityDemo">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay"
android:id="#+id/settingsToolBar"
>
<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 layout="#layout/content_settings"
/>

adding tab in action bar with navigation drawer in material design

i am new in material concept so as am stuck with some lack of knowledge. Kindly help me out with the problem am running threw currently.
MAINACTIVITY
package com.sample.mpassbook.mpassbook_d;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
public class MainActivity extends AppCompatActivity implements FragmentDrawer.FragmentDrawerListener {
private Toolbar mtoolbar;
private FragmentDrawer drawerFragment;
ViewPager pager;
ViewPagerAdapter adapter;
SlidingTabLayout tabs;
CharSequence Titles[]={"CURRENT","DEBIT","CREDIT"};
int Numboftabs =3;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mtoolbar = (Toolbar) findViewById(R.id.toolbar);
if (mtoolbar != null) {
mtoolbar.setTitle(R.string.app_name);
setSupportActionBar(mtoolbar);
// getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
drawerFragment = (FragmentDrawer)
getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mtoolbar);
drawerFragment.setDrawerListener(this);
Transactionfragment fragment = new Transactionfragment();
FragmentManager fm = getSupportFragmentManager(); //or getFragmentManager() if you are not using support library.
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.container_body, fragment);
ft.commit();
}
#Override
protected void onStart() {
super.onStart();
adapter = new ViewPagerAdapter(getSupportFragmentManager(),Titles,Numboftabs);
// Assigning ViewPager View and setting the adapter
pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(adapter);
// Assiging the Sliding Tab Layout View
tabs = (SlidingTabLayout) findViewById(R.id.tabs);
tabs.setDistributeEvenly(true); // To make the Tabs Fixed set this true, This makes the tabs Space Evenly in Available width
// Setting Custom Color for the Scroll bar indicator of the Tab View
tabs.setCustomTabColorizer(new SlidingTabLayout.TabColorizer() {
#Override
public int getIndicatorColor(int position) {
return getResources().getColor(R.color.tabsScrollColor);
}
});
// Setting the ViewPager For the SlidingTabsLayout
tabs.setViewPager(pager);
}
#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) {
// 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);
}
#Override
public void onDrawerItemSelected(View view, int position) {
displayView(position);
}
private void displayView(int position) {
Fragment fragment = null;
String title = getString(R.string.app_name);
switch (position) {
case 0:
fragment = new Transactionfragment();
title = getString(R.string.title_transaction);
break;
case 1:
fragment = new Settingsfragment();
title = getString(R.string.title_settings);
break;
// case 2:
// fragment = new MessagesFragment();
// title = getString(R.string.title_messages);
// break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.container_body, fragment);
fragmentTransaction.commit();
// set the toolbar title
getSupportActionBar().setTitle(title);
}
}
}
Activity_layout
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:orientation="vertical">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
<com.sample.mpassbook.mpassbook_d.SlidingTabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="2dp"
android:background="#color/colorPrimary"/>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:layout_weight="1">
</android.support.v4.view.ViewPager>
</LinearLayout>
<FrameLayout
android:id="#+id/container_body"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" >
</FrameLayout>
</LinearLayout>
<fragment
android:id="#+id/fragment_navigation_drawer"
android:name="com.sample.mpassbook.mpassbook_d.FragmentDrawer"
android:layout_width="#dimen/nav_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
app:layout="#layout/fragment_navigation_drawer"
tools:layout="#layout/fragment_navigation_drawer" />
</android.support.v4.widget.DrawerLayout>
Here my navigation drawer intent was working fine while but after adding tabs to the actionbar i cant intent to other pages from navigation bar.
For example: if i click navigation bar and select "settings" tab it's not directing to settings layout. Kindly give better suggestions so as it helps me out in future.

Android how toggle with the button in toolbar to open/close navigation drawer with Fragments

I am new in Android Development after reading so many tutorials and documentation and spending some time finally i managed to create a navigation drawer with the toolbar. but currently the problem is i can only open drawer by swiping from left side of the screen (not capable open/close drawer with toolbar) i don't know how in onCreateView i can access to navigation drawer id which is not set in onCreateView's setContentView but it is set in onCreate's SetContentView of that class. I use Fragments. i attach my entire code , would appreciate if somebody would say with the button in toolbar ( id burger_btn) how can i change my code to open and close the drawer. Thanks
############### DashboardActivity.java
public class DashboardActivity extends ActionBarActivity implements MessageReceived,NavigationDrawerFragment.NavigationDrawerCallbacks {
/**
* Fragment managing the behaviors, interactions and presentation of the navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
/**
* Used to store the last screen title. For use in
*/
private CharSequence mTitle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.navigation_drawer);
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) {
// update the main content by replacing fragments
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, PlaceholderFragment.newInstance(position + 1))
.commit();
}
#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.
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();
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) {
final View rootView = inflater.inflate(R.layout.dashboard_activity, container, false);
lbl_notifications_amount = (TextView) rootView.findViewById(R.id.lbl_notifications_amount);
// Set a toolbar to replace the action bar.
Toolbar toolbar = (Toolbar) rootView.findViewById(R.id.toolbar);
((ActionBarActivity) getActivity()).setSupportActionBar(toolbar);
((ActionBarActivity) getActivity()).getSupportActionBar().setDisplayShowTitleEnabled(false);
toolbar.setTitleTextColor(getResources().getColor(android.R.color.white));
// here i don't know how to get the navigation drawer id from layout which is connected to onCreate not onCreateView?
/*
DrawerLayout mDrawerLayout = (DrawerLayout) rootView.findViewById(R.id.drawer_layout);
ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(
getActivity(), mDrawerLayout, toolbar,
R.string.navigation_drawer_open, R.string.navigation_drawer_close
);
mDrawerLayout.setDrawerListener(mDrawerToggle);
((ActionBarActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
((ActionBarActivity) getActivity()). getSupportActionBar().setHomeButtonEnabled(true);
mDrawerToggle.syncState();
*/
return rootView;
}
}
}
########################## NavigationDrawerFragment.java
/**
* Fragment used for managing interactions for and presentation of a navigation drawer.
* See the <a href="https://developer.android.com/design/patterns/navigation-drawer.html#Interaction">
* design guidelines</a> for a complete explanation of the behaviors implemented here.
*/
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 callbacks 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, true);
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) {
View simpleFragmentView = inflater.inflate(R.layout.fragment_navigation_drawer,container,false);
return simpleFragmentView;
}
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
// 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.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).apply();
}
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 (mDrawerLayout != null) {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
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()) {
}
super.onCreateOptionsMenu(menu, inflater);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
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);
}
}
#################### navigation_drawer.xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:id="#+id/drawer_layout"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context=".DashboardActivity">
<FrameLayout android:id="#+id/container" android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<fragment android:id="#+id/navigation_drawer"
android:layout_width="240dp" android:layout_height="match_parent"
android:layout_gravity="start"
android:name="com.packageName.NavigationDrawerFragment"
tools:layout="#layout/fragment_navigation_drawer" />
</android.support.v4.widget.DrawerLayout>
#################### fragment_navigation_drawer.xml
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#color/light_green">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#string/dashboard"
android:textColor="#color/white"
android:textStyle="bold"
android:id="#+id/dashboardTextView"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="95dp" />
</RelativeLayout>
################ dashboard_activity.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/dark_blue">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:minHeight="?attr/actionBarSize"
android:height="#dimen/activity_header_height"
android:background="#color/light_green"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v7.widget.Toolbar>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="#string/dashboard"
android:paddingTop="15dp"
android:textSize="20sp"
android:id="#+id/titleToolbar"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:textColor="#color/white"
android:layout_alignBottom="#+id/toolbar" />
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="15dp"
android:id="#+id/burger_btn"
android:src="#drawable/burger_btn"
android:background="#color/light_green"
android:layout_marginRight="5dp"
/>
<RelativeLayout
android:id="#+id/badges_area"
android:layout_width="match_parent"
android:layout_height="#dimen/dashboard_badges_height"
android:layout_above="#+id/btn_notifications"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginLeft="#dimen/dashboard_horizontal_margin"
android:background="#drawable/badge_dashboard_area">
...
...
P.S:my intent is with id of burger_btn (the layout of dashboard_activity) open and close the navigation drawer. would appreciate if somebody could help me what changes in code i need to do so.

If you want to open/close Navigation Drawer from Toolbar, then try to change your layout of navigation_drawer to be:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:minHeight="?attr/actionBarSize"
android:height="#dimen/activity_header_height"
android:background="#color/light_green"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v7.widget.Toolbar>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context=".DashboardActivity">
<FrameLayout android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<fragment android:id="#+id/navigation_drawer"
android:layout_width="240dp" android:layout_height="match_parent"
android:layout_gravity="start"
android:name="com.packageName.NavigationDrawerFragment"
tools:layout="#layout/fragment_navigation_drawer" />
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
and accordingly, move toolbar related codes from Fragment to Activity

Working with android actionbar

I have a code for making a slide menu navdrawer in android, which is provided as a slide.jar i downloaded from somewhere in internet and it is working fine. when i click the icon in action bar, the drawer slides well. The problem is that, i dont want my action bar to slide, but the left menu drawer only should slide, below the action bar.
and also, sliding is possible when i click the icon, but how to make the icon and title as a slingle clickable item as in gmail's app.
my code is:
#TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public class MainActivity extends Activity {
SimpleSideDrawer slide_me;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActionBar a= getActionBar();
a.setTitle("ashwin");
a.setIcon(R.drawable.ic_home);
a.setHomeButtonEnabled(true);
slide_me = new SimpleSideDrawer(this);
slide_me.setLeftBehindContentView(R.layout.left_menu);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
slide_me.toggleLeftDrawer();
break;
default:
return super.onOptionsItemSelected(item);
}
return true;
}
}
Thankyou in advance

In order to have the correct implementation of a Navigation Drawer, I recommend staying away from 3rd party libraries as the Android provided ones work. The first thing you're going to want to write is your XML layout with a DrawerLayout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--The main content view, put your content here-->
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!--The navigation drawer-->
<ListView
android:id="#+id/left_drawer"
android:layout_width="304dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#color/white"/>
</android.support.v4.widget.DrawerLayout>
Then in code:
String mDrawerTitle = getTitle();
String[] nav_items = getResources().getStringArray(R.array.nav_drawer_menu_items);
DrawerLayout mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.drawer_open, R.string.drawer_close) {
/**
* Called when a drawer has settled in a completely closed state
*/
public void onDrawerClosed(View view) {
setTitle(mActionBarTitle);
invalidateOptionsMenu(); // Creates a call to onPrepareOptionsMenu()
}
/**
* Called when a drawer has settled in a completely open state
*/
public void onDrawerOpened(View drawerView) {
setTitle(mDrawerTitle);
invalidateOptionsMenu(); // Creates a call to onPrepareOptionsMenu()
}
};
// Set the drawerToggle as the DrawerListener
mDrawerLayout.setDrawerListener(mDrawerToggle);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
mDrawerList.setAdapter(new NavigationDrawerListAdapter(this));

What is best example for Navigation Drawer in Material Design in low API

I trying find more info how create best Navigation Drawer panel with Material Desing's guidelines.
Google recommended page Creating a Navigation Drawer. This example based on Support Library v4.
Also link about v7 AppCompat v21 — Material Design for Pre-Lollipop Devices!. This work fine only on Android API 21+. I can't use this Material Desing in lower OS's vesion, because If I set target=android-20 (or less) in project.properties I get errors in Eclipse (several hundred):
C:\<workspace>\android-support-v7-appcompat\res\values-v21\styles_base.xml:75: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton'
....
:( several hundred error in 'values-v21' directory
....
I use features of low Android API, that was deprecated or undefined in Android API 21+. But I need support Material Design in low API (14+).
Please give examples of creating Navigation Drawer on low Android API 14+.

Use this as a dependency :
compile "com.android.support:appcompat-v7:21.0.2" (or use newer)
Layout :
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include layout="#layout/toolbar"
android:id="#+id/mytoolbardrawer"
/>
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_below="#id/mytoolbardrawer"
android:layout_height="match_parent"
/>
</RelativeLayout>
<RelativeLayout
android:id="#+id/rel_drawer"
android:layout_width="304dp"
android:layout_height="match_parent"
android:layout_gravity="start"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="171dp"
android:id="#+id/img_drawer"
android:scaleType="centerCrop"
android:src="#drawable/photo_4"/>
<ListView
android:id="#+id/list_slidermenu"
android:layout_below="#id/img_drawer"
android:layout_width="304dp"
android:listSelector="#drawable/list_selector"
android:checkable="true"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:paddingStart="16dp"
android:paddingEnd="16dp"
android:dividerHeight="1dp"
android:theme="#style/ThemeOverlay.AppCompat.Light"
android:background="#android:color/white" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
Drawer Activity :
import android.content.res.Configuration;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.Toolbar;
import android.text.Html;
import android.text.SpannableString;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.RelativeLayout;
public class DrawerActivity extends ActionBarActivity {
Toolbar t;
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private RelativeLayout mRelativeLayout;
private ActionBarDrawerToggle mDrawerToggle;
private CharSequence mDrawerTitle,mTitle;
private String[] navMenuItems;
private SpannableString[] navmenuItems;
private ArrayAdapter<SpannableString> adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drawer);
t=(Toolbar)findViewById(R.id.mytoolbardrawer);
setSupportActionBar(t);
initStuffs();
if (savedInstanceState == null) {
new SliderMenuClickListener().displayView(0);
}
}
private void initStuffs() {
mTitle=mDrawerTitle=getTitle();
navMenuItems=getResources().getStringArray(R.array.Titles);
mDrawerLayout=(DrawerLayout)findViewById(R.id.drawer_layout);
mDrawerList=(ListView)findViewById(R.id.list_slidermenu);
mRelativeLayout=(RelativeLayout)findViewById(R.id.rel_drawer);
navmenuItems=new SpannableString[navMenuItems.length];
for(int i=0;i<navMenuItems.length;i++) {
navmenuItems[i] = new SpannableString(Html.fromHtml("<font color='#000000'>" + navMenuItems[i] + "</font>"));
}
adapter=new ArrayAdapter<SpannableString>(DrawerActivity.this,android.R.layout.simple_list_item_1,navmenuItems);
mDrawerList.setAdapter(adapter);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
mDrawerToggle=new ActionBarDrawerToggle(DrawerActivity.this,mDrawerLayout,t,R.string.app_name,R.string.app_name){
public void onDrawerClosed(View view){
getSupportActionBar().setTitle(mTitle);
invalidateOptionsMenu();
}
public void onDrawerOpened(View view){
getSupportActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerList.setOnItemClickListener(new SliderMenuClickListener());
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.drawer, menu);
return true;
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
boolean drawerOpen=mDrawerLayout.isDrawerOpen(mRelativeLayout);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public void setTitle(CharSequence title) {
super.setTitle(title);
mTitle=title;
getSupportActionBar().setTitle(mTitle);
}
#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.
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private class SliderMenuClickListener implements ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id){
displayView(position);
}
private void displayView(int position) {
Fragment fragment=null;
switch (position){
case 0:
fragment=new HomeFragment();
break;
case 1:
fragment=new HomeFragment();
break;
case 2:
fragment=new HomeFragment();
break;
case 3:
fragment=new HomeFragment();
break;
default:break;
}
if(fragment!=null){
FragmentManager fm=getSupportFragmentManager();
fm.beginTransaction().replace(R.id.frame_container,fragment).commit();
mDrawerList.setItemChecked(position,true);
mDrawerList.setSelection(position);
setTitle(navMenuItems[position]);
mDrawerLayout.closeDrawer(mRelativeLayout);
}else{
Log.e("DrawerActivity","Error creating fragment");
}
}
}
}