Develop Reference

Target action bar item from navigation drawer

I am currently working on an app that i implemented a toolbar and a search functionality on the toolbar with a searchview to filter list views which is working fine.
I also have a navigation drawer whereby i also want one of its items to do exactly what the search functionality is doing on the toolbar. How do implement an intent to lead me to SearchViewon toolbar when searchitem is clicked from navigation drawer.
menu_main for toolbar
<menu 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"
tools:context=".MainActivity">
<item
android:id="#+id/viewMode"
android:orderInCategory="100"
app:showAsAction="never"
android:icon="#drawable/ic_view_compact_black_24dp"
android:title="#string/view" />
<item
// my search functionality
android:id="#+id/search"
android:orderInCategory="100"
app:actionViewClass= "android.support.v7.widget.SearchView"
app:showAsAction="ifRoom"
android:icon="#drawable/ic_search"
android:title="#string/search" />
</menu>
activity_navdrawer
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<group android:checkableBehavior="single">
<item
android:id="#+id/nav_notes"
android:icon="#drawable/ic_note_add_black_24dp"
android:title="#string/first_layout" />
<item
// search functionality which should lead me to searchview on toolbar
android:id="#+id/nav_search"
android:icon="#drawable/ic_search_black_24dp"
android:title="#string/third_layout" />
</group>
<item android:title="#string/app_communicate">
<menu>
<item
android:id="#+id/nav_share"
android:icon="#drawable/ic_share_black_24dp"
android:title="#string/app_share" />
<item
android:id="#+id/nav_send"
android:icon="#drawable/ic_email_black_24dp"
android:title="#string/app_send" />
</menu>
</item>
</menu>
from main activity
public boolean onNavigationItemSelected(MenuItem item) {
// Handling navigation view item clicks here.
int id = item.getItemId();
if(id == R.id.nav_notes) {
Intent noteIntent = new Intent(this, MainActivity.class);
startActivity(noteIntent);
} else if(id == R.id.nav_search) {
MenuItem searchMenuItem = mOptionsMenu.findItem(R.id.search);
searchMenuItem.expandActionView();
// what should i implement here?
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public boolean onCreateOptionsMenu(`final` Menu menu) {
mOptionsMenu = menu;
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_main, menu);
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
searchView = (SearchView) menu.findItem(R.id.search).getActionView();
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setMaxWidth(Integer.MAX_VALUE);
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
ArrayAdapter<Note> arrayAdapter = (ArrayAdapter<Note>) mListNotes.getAdapter();
arrayAdapter.getFilter().filter(newText);
return false;
}
});
return true;
}

Try the following code below:
private Menu mOptionsMenu;
...
#Override
public boolean onCreateOptionsMenu(final Menu menu) {
mOptionsMenu = menu;
...
}
...
public boolean onNavigationItemSelected(MenuItem item) {
...
} else if(id == R.id.nav_search) {
MenuItem searchMenuItem = mOptionsMenu.findItem(R.id.menu_search);
searchMenuItem.expandActionView();
}
...

Add <category android:name="android.intent.category.DEFAULT" /> to your search activity in manifest. Then do this:
else if(id == R.id.nav_search) {
startActivity(new Intent(Intent.ACTION_SEARCH));
}
If this works, courtesy - Start Activity Using Custom Action

Android navigation drawer default selected on start

I have created a new android studio project using the navigation drawer activity. Currently, the main activity starts when the app is loaded (which is fine), but I want to associate this main activity with a particular menu item in the drawer such that 1) when this menu item is selected the main activity will load, and 2) I want that menu item to be selected/highlighted by default when the app first starts
I think I would handle issue 1 with intents in the onNavigationItemSelected method, but I'm not sure how to have a menu item selected by default.
I've searched around and the only solutions I've found refer to fragments, but I'm not using fragments in this project (and those solutions didn't work). For example I have tried selectItem(0); in onCreate(), and navigationView.getMenu().getItem(0).setChecked(true); but neither seem to work.
Here is my base code:
MainActivity.java:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "FAB Pressed", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
activity_main_drawer.xml:
<item android:title="Menu">
<menu>
<group android:checkableBehavior="single">
<item
android:id="#+id/nav_new"
android:icon="#drawable/ic_menu_share"
android:title="#string/nav_new" />
<item
android:id="#+id/nav_start"
android:icon="#drawable/ic_menu_slideshow"
android:title="#string/nav_start" />
<item
android:id="#+id/nav_delete"
android:icon="#drawable/ic_menu_manage"
android:title="#string/nav_delete" />
</group>
</menu>
</item>
Not much has changed from the starting project apart from the menu items. I want to have the New menu item selected by default as I want to associate that item with the MainActivity

You only need to add code:
navigationView.setCheckedItem(R.id.nav_new);

I thing the best approach to this is to include android:checked="true"
<item android:title="Menu">
<menu>
<group android:checkableBehavior="single">
<item
android:id="#+id/nav_new"
android:icon="#drawable/ic_menu_share"
android:checked="true"
android:title="#string/nav_new" />
<item
android:id="#+id/nav_start"
android:icon="#drawable/ic_menu_slideshow"
android:title="#string/nav_start" />
<item
android:id="#+id/nav_delete"
android:icon="#drawable/ic_menu_manage"
android:title="#string/nav_delete" />
</group>
</menu>
</item>
Hope this helps you more

How to display ActionBar in the entire App Android

Hello i'm making an application for Android and I added an ActionBarDrawerToggle to the app. When i select an item, the ActionBarDrawerToggle disappear.
What I want to do :
Create the ActionBarDrawerToggle in MainWindow.java [Done]
Create Profil.java and Planning.java and extend MainWindow into Profil and Planning to display the ActionBarDrawerToggle. [Problem]
I'm using :
UPDATE
Mainactivity :
public class MainWindow extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTheme(R.style.AppTheme_NoActionBar);
setContentView(R.layout.activity_mainwindow);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.mainwindow, 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.nav_profil) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_profil) {
Intent intent = new Intent(this, Profil.class);
startActivity(intent);
} else if (id == R.id.nav_planning) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
the Profil :
public class Profil extends MainWindow {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.content_profil);
System.out.println("Profil");
}
}
AndroidManifest.xml :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.main">
<!-- To auto-complete the email text field in the login form with the user's emails -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".Login"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainWindow"
android:label="#string/title_activity_mainwindow"></activity>
<activity
android:name=".Connection"></activity>
<activity
android:name=".Profil"></activity>
</application>
</manifest>

if you are using a material support lib you will have to add the action bar manually in the XML file
<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/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:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/PopupOverlay"/>
</android.support.design.widget.AppBarLayout>
and in the java Activity file in onCreate() method add the following lines
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
Hope this works for you

Be sure #style/AppTheme theme not NoActionBar.

How to link local HTML pages with strings in a navigation drawer?

I have a simple app with a webview to load local HTML pages, I put all my files inside assets, now in my navigation drawer I want to have some text/links that open these pages, I tried to follow some tuts on the web but somehow I can't make it happen.
Any help would be greatly appreciated!
My code on android studio:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.INTERNET" />
activity_main.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">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivity"
android:background="#ffffffff">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="History Of S.Johnson High School"
android:textSize="24sp"
android:gravity="center"
android:layout_marginTop="100dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/sjohnson"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"/>
<WebView
android:id="#+id/activity_main_webview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<!-- Side navigation drawer UI -->
<ListView
android:id="#+id/navList"
android:layout_width="250dp"
android:layout_height="match_parent"
android:layout_gravity="left|start"
android:background="#ffeeeeee"/>
MainActivity.java
public class MainActivity extends ActionBarActivity {
private WebView mWebView;
private ListView mDrawerList;
private DrawerLayout mDrawerLayout;
private ArrayAdapter<String> mAdapter;
private ActionBarDrawerToggle mDrawerToggle;
private String mActivityTitle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (WebView) findViewById(R.id.activity_main_webview);
mDrawerList = (ListView)findViewById(R.id.navList);mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
mActivityTitle = getTitle().toString();
addDrawerItems();
setupDrawer();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
mWebView.setWebViewClient(new MyAppWebViewClient());
mWebView.loadUrl("file:///android_asset/www/index.html");
}
#Override
public void onBackPressed() {
if(mWebView.canGoBack()) {
mWebView.goBack();
} else {
super.onBackPressed();
}
}
private void addDrawerItems() {
String[] osArray = { "Android", "iOS", "Windows", "OS X", "Linux" };
mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, osArray);
mDrawerList.setAdapter(mAdapter);
mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this, "Time for an upgrade!", Toast.LENGTH_SHORT).show();
}
});
}
private void setupDrawer() {
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.drawer_open, R.string.drawer_close) {
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getSupportActionBar().setTitle("Navigation!");
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
getSupportActionBar().setTitle(mActivityTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
};
mDrawerToggle.setDrawerIndicatorEnabled(true);
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
#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;
}
// Activate the navigation drawer toggle
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
MyAppWebViewClient.java
public class MyAppWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(Uri.parse(url).getHost().length() == 0) {
return false;
}
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
view.getContext().startActivity(intent);
return true;
}
themes.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme"
parent="#style/Theme.AppCompat.Light.DarkActionBar">
<item name="android:actionBarStyle">#style/MyActionBar</item>
<!-- Support library compatibility -->
<item name="actionBarStyle">#style/MyActionBar</item>
</style>
<!-- ActionBar styles -->
<style name="MyActionBar"
parent="#style/Widget.AppCompat.Light.ActionBar.Solid.Inverse">
<item name="android:background">#drawable/actionbar_background</item>
<!-- Support library compatibility -->
<item name="background">#drawable/actionbar_background</item>
</style>
strings.xml
<?xml version="1.0" encoding="utf-8"?>
<string name="app_name">Info</string>
<string name="hello_world">Hello world!</string>
<string name="action_settings">Settings</string>
<string name="drawer_open">Open navigation drawer</string>
<string name="drawer_close">Close navigation drawer</string>

As I understand you want to load yours html file from assets into WebView by clicking items in drawerMenu? If it's so you you need to add this lines to onClickListener of yours listView in drawer:
mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this, "Time for an upgrade!", Toast.LENGTH_SHORT).show();
//load file to webView
mWebView.loadUrl("REPLACE_IT_WITH_PATH_TO_FILE");
//close drawer
mDrawerLayout.closeDrawers();
}
});

java.lang.NullPointerException: Attempt to invoke virtual method 'ActionBar.setNavigationMode(int)' on a null object reference

I am getting this error at runtime.
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setNavigationMode(int)' on a null object reference
Main Activity.java
public class MainActivity <T extends Fragment> extends ActionBarActivity implements ListView.OnItemClickListener
{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionBar.setDisplayShowTitleEnabled(false);
ActionBar.Tab tab;
tab = actionBar.newTab()
.setText("Categories")
.setTabListener(new TabListener<CategoriesFragment>(
this, "Categories", CategoriesFragment.class));
actionBar.addTab(tab);
tab = actionBar.newTab()
.setText("Acceuil")
.setTabListener(new TabListener<AcceuilFragment>(
this, "Acceuil", AcceuilFragment.class));
actionBar.addTab(tab);
tab = actionBar.newTab()
.setText("Topics")
.setTabListener(new TabListener<TopicsFragment>(
this, "Topics", TopicsFragment.class));
actionBar.addTab(tab);
tab = actionBar.newTab()
.setText("Tendances")
.setTabListener(new TabListener<TendancesFragment>(
this, "Tendances", TendancesFragment.class));
actionBar.addTab(tab);
setRef();
//Set the custom toolbar
if (toolbar != null)
{
toolbar.setTitle(R.string.app_name);
setSupportActionBar(toolbar);
}
drawerToggle = new ActionBarDrawerToggle(
this,
drawerLayout,
toolbar,
R.string.open,
R.string.close
)
{
public void onDrawerClosed(View view)
{
Log.d("MainActivity", "OnDrawerClosed");
super.onDrawerClosed(view);
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView)
{
Log.d("MainActivity", "OnDrawerOpened");
super.onDrawerOpened(drawerView);
invalidateOptionsMenu();
}
};
drawerLayout.setDrawerListener(drawerToggle);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
// use this setting to improve performance if you know that changes
// in content do not change the layout size of the RecyclerView
mRecyclerView.setHasFixedSize(true);
// use a linear layout manager
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
mRecyclerView.setItemAnimator(new DefaultItemAnimator());
// specify an adapter (see also next example)
mAdapter = new MyAdapter(myDataset);
mRecyclerView.setAdapter(mAdapter);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
private void setRef()
{
// create reference to the xml views
mRecyclerView = (android.support.v7.widget.RecyclerView) findViewById(R.id.my_recycler_view);
fab = (Button) findViewById(R.id.addButton);
drawerLayout = (android.support.v4.widget.DrawerLayout) findViewById(R.id.drawer_layout);
drawerLayout.setStatusBarBackground(R.color.primarydark);
toolbar = (android.support.v7.widget.Toolbar) findViewById(R.id.toolbar);
leftDrawerList = (ListView) findViewById(R.id.list_drawer);
View list_header = getLayoutInflater().inflate(R.layout.drawerlist_header, null);
leftDrawerList.addHeaderView(list_header);
navigationDrawerAdapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_expandable_list_item_1, leftSliderData);
leftDrawerList.setAdapter(navigationDrawerAdapter);
leftDrawerList.setOnItemClickListener(this);
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
Toast.makeText(getApplicationContext(), "Clicked on " + leftSliderData[position - 1], Toast.LENGTH_LONG).show();
}
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
// Check if the fragment is already initialized
if (mFragment == null) {
// If not, instantiate and add it to the activity
mFragment = Fragment.instantiate(mActivity, mClass.getName());
ft.add(android.R.id.content, mFragment, mTag);
} else {
// If it exists, simply attach it in order to show it
ft.attach(mFragment);
}
}
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
if (mFragment != null) {
// Detach the fragment, because another one is being attached
ft.detach(mFragment);
}
}
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
// User selected the already selected tab. Usually do nothing.
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<!-- Setting this one to true makes the status bar
to have a non-transparent shitty background -->
<!--
As the main content view, the view below consumes the entire
space available using match_parent in both dimensions.
-->
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="false">
<include layout="#layout/actionbarlayout"></include>
<include layout="#layout/content_view"></include>
<Button
android:id="#+id/addButton"
android:text="+"
android:textSize="25sp"
android:textColor="#android:color/white"
android:textAlignment="center"
android:layout_marginRight="15dp"
android:layout_marginBottom="15dp"
android:background="#drawable/circlebtn"
android:layout_width="56dp"
android:layout_height="56dp"
android:stateListAnimator="#animator/anim"
android:elevation="4dp"
style="?android:buttonStyleSmall"
android:layout_gravity="right|bottom" >
</Button>
</FrameLayout>
<com.androprogrammer.test.materialapp1.ScrimInsetsFrameLayout
android:id="#+id/container"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:elevation="8dp"
android:layout_gravity="start"
app:insetForeground="#4000">
<ListView
android:id="#+id/list_drawer"
android:layout_width="#dimen/drawer_width"
android:layout_height="match_parent"
android:choiceMode="singleChoice"
android:background="#android:color/white"
android:fitsSystemWindows="true">
</ListView>
</com.androprogrammer.test.materialapp1.ScrimInsetsFrameLayout>
</android.support.v4.widget.DrawerLayout>
values/styles.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="AppTheme.Base"/>
<style name="AppTheme.Base" parent="Theme.AppCompat.Light">
<item name="colorPrimary">#color/primary</item>
<item name="colorPrimaryDark">#color/primarydark</item>
<item name="colorAccent">#color/primary</item>
<item name="colorControlHighlight">#color/primary</item>
<item name="android:windowNoTitle">true</item>
<item name="windowActionBar">false</item>
<item name="drawerArrowStyle">#style/DrawerArrowStyle</item>
<item name="windowActionModeOverlay">true</item>
</style>
<style name="DrawerArrowStyle" parent="Widget.AppCompat.DrawerArrowToggle">
<item name="spinBars">true</item>
<item name="color">#android:color/white</item>
</style>
</resources>
v21/styles.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="AppTheme" parent="AppTheme.Base">
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">#android:color/transparent</item>
<item name="android:windowContentTransitions">true</item>
<item name="android:windowAllowEnterTransitionOverlap">true</item>
<item name="android:windowAllowReturnTransitionOverlap">true</item>
<item name="android:windowSharedElementEnterTransition">#android:transition/move</item>
<item name="android:windowSharedElementExitTransition">#android:transition/move</item>
</style>
</resources>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.androprogrammer.test.materialapp1" >
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Help Please :)

Try to change the parent style
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
and ActionBarActivity is deprecated, you should use AppCompatActivity

In your style.xml you have to have the actionbar enabled. If the actionbar is disabled (set to false) then it will not be added in to the activity at runtime (ie getActionBar() returns null).