Develop Reference

Connecting toolbar with the navigation drawer

I have several activities where I want to use the same navigation drawer. Here's part of my Activity class code related to the drawer:
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
I'm planning to make a DrawerActivity class and extend it from all those activities which want the Navigation drawer. Therefore, I will have to move all the drawer code to that DrawerActivity.
The problem:
toolbar is important for the initialization of ActionBarDrawerToggle. Every activity has a different toolbar depending upon the needs of that activity. Therefore, the toolbar layouts must be kept in their respective layout xml files. How would I use the toolbar then in the DrawerActivity class?
Layout xml for the drawer:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<FrameLayout
android:layout_height="match_parent"
android:layout_width="match_parent"
android:id="#+id/frame_layout"
xmlns:android="http://schemas.android.com/apk/res/android">
</FrameLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
app:itemBackground="#drawable/drawer_list_selector"
style="#style/NavigationDrawer"
app:headerLayout="#layout/sidenav_header"
app:menu="#menu/side_navigation_menu"
app:theme="#style/Drawer"/>
</android.support.v4.widget.DrawerLayout>
Here's the SideNavigation activity (which I'm trying to extend by those classes who need navigation drawer): pastebin.com/hheMXku5
main statement of the log says:
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayShowTitleEnabled(boolean)' on a null object reference
Here's the link to the onCreate of one of the activity class that extends the SideNavigation class: pastebin.com/iKYXVbda

okey so as you want to use drawer with Activity. I am posting my code here. I hope this will help you out.
First of all you need to develop NavigationDrawer. I know you can do it by your self.
Now create child Activity for Example Home.java and extend it with your drawer Activity let's say MainActivity.java.
it will be something like this.
public class Home extends MainActivity{
Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
}
Now usually we perform setContentView in onCreate, bur here do something like this.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getLayoutInflater().inflate(R.layout.home, frameLayout);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
}
Where frameLayout would be your container, which you have take in MainActivity.
Note : don't forget to take another ToolBar in home Activity. because it will override MainActivity's toolbar.
EDIT
I am posting my Whole code please refer it. Although I have took my custom Navigation drawer but it can work with NavigationView too.
activity_main
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
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" >
<RelativeLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="false" >
<!-- ToolBar of MainActivity -->
<include
android:id="#+id/toolbar_headers"
layout="#layout/toolbar_header" />
</RelativeLayout>
<!-- here will be your NavigationView -->
<com.random.extraclasses.ScrimInsetsFrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layout_marginRight="-8dp"
android:elevation="8dp"
android:fitsSystemWindows="true"
app:insetForeground="#4000" >
<include
android:id="#+id/drawar_layout"
layout="#layout/drawar_layout" />
</com.gujarat.property.extraclasses.ScrimInsetsFrameLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity implements OnClickListener {
protected RelativeLayout frameLayout;
protected DrawerLayout mDrawerLayout;
protected ListView mDrawerList;
protected ScrimInsetsFrameLayout mLayout;
protected ActionBarDrawerToggle mDrawerToggle;
protected static boolean isLaunch = true;
Toolbar toolbar;
private CharSequence mTitle;
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
frameLayout = (RelativeLayout) findViewById(R.id.frame_container);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.list);
mLayout = (ScrimInsetsFrameLayout) findViewById(R.id.container);
toolbar = (Toolbar) findViewById(R.id.toolbar_headers);
setSupportActionBar(toolbar);
navDrawerItems = new ArrayList<NavDrawerItem>();
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons
.getResourceId(0, -1)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons
.getResourceId(1, -1)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons
.getResourceId(2, -1)));
navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons
.getResourceId(3, -1)));
navMenuIcons.recycle();
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
selectedPos = position - 1;
displayView(position);
}
});
mDrawerList.setAdapter(adapter);
mDrawerList.setFocusable(false);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, R.string.app_name) {
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (isLaunch) {
isLaunch = false;
displayView(0);
}
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
private void displayView(int position) {
mDrawerLayout.closeDrawer(mLayout);
MainActivity.position = position;
switch (position) {
case 0:
if (this.getClass().getSimpleName().equals("Home")) {
} else {
Intent i = new Intent(this, Home.class);
startActivity(i);
overridePendingTransition(R.anim.fadein, R.anim.fadeout);
}
break;
case 1:
if (this.getClass().getSimpleName().equals("ForSale")) {
} else {
Intent i = new Intent(this, ForSale.class);
startActivity(i);
overridePendingTransition(R.anim.fadein, R.anim.fadeout);
}
break;
case 2:
if (this.getClass().getSimpleName().equals("ForRent")) {
} else {
Intent i = new Intent(this, ForRent.class);
startActivity(i);
overridePendingTransition(R.anim.fadein, R.anim.fadeout);
}
break;
case 3:
if (this.getClass().getSimpleName().equals("NewProjects")) {
} else {
Intent i = new Intent(this, NewProjects.class);
startActivity(i);
overridePendingTransition(R.anim.fadein, R.anim.fadeout);
}
break;
default:
break;
}
}
#Override
public void setTitle(CharSequence title) {
mTitle = title;
getSupportActionBar().setTitle(mTitle);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
#Override
public void onClick(View v) {
}
}
And finally Home.java
public class Home extends MainActivity implements OnClickListener {
Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getLayoutInflater().inflate(R.layout.home, frameLayout);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setTitle("");
}
#Override
public void onBackPressed() {
super.onBackPressed();
if (mDrawerLayout.isDrawerOpen(mLayout)) {
isLaunch = false;
mDrawerLayout.closeDrawer(mLayout);
} else {
finishAffinity();
}
}
And just for reference home.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/main"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/toolbar"
android:background="#drawable/back51" >
<TextView
android:id="#+id/etSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:background="#android:color/transparent"
android:text="Search Property"
android:textColor="#666666" />
</RelativeLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways"
android:background="#color/toobar"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" >
</android.support.v7.widget.Toolbar>
</RelativeLayout>
I hope this will help you out.

How can I extend AppCompatActivity to centralize codes, e.g. DrawerLayout?

I would like to extend AppCompatActivity to centralize codes in order to share codes, e.g. DrawerLayout, etc.
However, I encounter NullPointerException. Here is my code:
MasterActivity
public class MasterActivity extends AppCompatActivity {
public static final String TAG = "MasterActivity";
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
protected void setupDrawer() {
// Drawer
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open_drawer, R.string.close_drawer) {
#Override
public void onDrawerOpened(View drawerView) {
}
#Override
public void onDrawerClosed(View drawerView) {
}
};
mDrawerLayout.addDrawerListener(mDrawerToggle);
}
}
ChildActivity
public class ChildActivity extends MasterActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_child);
setupDrawer();
}
}
activity_child.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/drawer_layout"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".ChildActivity">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<!-- Main Content -->
</LinearLayout>
<LinearLayout android:id="#+id/llv_left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:orientation="vertical"
android:background="#888" >
<!-- Drawer Content -->
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
The NPE appears at:
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
the error message is:
Attempt to invoke virtual method 'void android.support.v4.widget.DrawerLayout.setDrawerShadow(int, int)' on a null object reference
Obviously the variable mDrawerLayout is null, as findViewById() cannot locate it from layout XML. The R.id.drawer_layout is located at R.layout.activity_child. If the ChildActivity extends AppCompatActivity, the NPE does not appear.
How can I resolve it?

How about
protected void setupDrawer(View v) {
mDrawerLayout = (DrawerLayout)v.findViewById(R.id.drawer_layout);
...
and then in ChildActivity
setContentView(R.layout.activity_child);
setupDrawer(findViewById(android.R.id.content));//use root view

Change ActionBarDrawerToggle icon android in toolbar?

I have an activity with navigation drawer and toolbar
Activity
public class MainActivity extends AppCompatActivity {
private Toolbar toolbar;
private CustomTextViewMondaRegular tvTitle;
private ListView mDrawerList;
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.tool_bar);
setSupportActionBar(toolbar);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
tvTitle = (CustomTextViewMondaRegular) findViewById(R.id.actionTitle);
tvTitle.setText(getIntent().getStringExtra("title"));
mDrawerList.setAdapter(new NavAdapter(getApplicationContext()));
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,toolbar,
R.string.title_activity_main, R.string.title_activity_main) {
#Override
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
invalidateOptionsMenu();
// creates call to onPrepareOptionsMenu()
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
}
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
private class DrawerItemClickListener implements ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView parent, View view, int position, long id) {
Logger.e("pos", position + "");
}
}
}
Activity 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"
android:orientation="vertical"
tools:context="com.vf.MainActivity">
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="#+id/tool_bar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#android:color/white"
android:elevation="3dp"
android:minHeight="?attr/actionBarSize"
android:theme="#style/MyDarkToolbarStyle">
<TextView
android:id="#+id/actionTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="5dp"
android:layout_marginRight="5dp"
android:drawableEnd="#drawable/logo"
android:drawableRight="#drawable/logo"
android:gravity="center"
android:text="XXXXXX"
android:textColor="#000000"
android:textSize="18sp" />
</android.support.v7.widget.Toolbar>
</FrameLayout>
<ListView
android:id="#+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#android:color/white"
android:choiceMode="singleChoice"
android:divider="#D8D8D8" />
The toggle icon currently shows the default icon. I need to change that icon. How can I do that?

For people who come across this SO question in future,
We have to disable drawer indicator
mDrawerToggle.setDrawerIndicatorEnabled(false);
and then set ToolBar's navigation button
mToolbar.setNavigationIcon(R.drawable.navIcon);
P.S. after that we have to set Navigation click listner on toolbar and open NavigationDrawer manualy.
like
mToolbar.setNavigationOnClickListener :D

Try the code below:
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_menu_drawer);

mDrawerToggle.setDrawerIndicatorEnabled(false);
and open the drawer with
mImageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
DrawerLayout drawer = findViewById(R.id.drawer_layout);
drawer.openDrawer(Gravity.START);
}
});

You can set the menu icon using setHomeAsUpIndicator, pass a drawable to this method.
See code below:
ActionBar ab = getSupportActionBar();
ab.setHomeAsUpIndicator(R.drawable.ic_menu);
ab.setDisplayHomeAsUpEnabled(true);

drawer icon in Actionbar is show me a error when I click then

Im using Android Studio 1.2
The icon drawer in actionbar is give me an error when I click then but is work fine If I open it sliding with the hand from the left to the rigth.
this is my layout where I have my drawer list from the left; the list of options is in listView "mimenu"
<RelativeLayout xmlns:android="xxxxxx"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="0dp"
android:paddingBottom="0dp"
android:background="#ffffff"
tools:context="xxxx">
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffffff">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<ListView
android:id="#+id/listaxx"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
></ListView>
</LinearLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_gravity="left"
>
<ListView
android:id="#+id/mimenu"
android:layout_width="match_parent"
android:layout_below="#+id/profileBox"
android:choiceMode="singleChoice"
android:layout_height="match_parent"
android:background="#ffffff"
android:divider="#eee"
android:dividerHeight="1dp"
/>
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
In my class java
public class ListaPat extends Activity {
public ArrayList<Pat> lstPat= new ArrayList<Pat>();
private Pat_Adaptador adaptador;
private LinearLayout linearLayout;
ArrayAdapter<CharSequence> navigationDrawerAdapter;
ListView leftDrawerList;
String[] leftSliderData = new String[]{"test1","test2"};
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_lista_patx);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
leftDrawerList = (ListView)findViewById(R.id.mimenu);
navigationDrawerAdapter= new ArrayAdapter<CharSequence>( ListaPat .this, android.R.layout.simple_list_item_1, leftSliderData);
leftDrawerList.setAdapter(navigationDrawerAdapter);
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(
this,
mDrawerLayout,
R.drawable.ic_drawer,
R.string.drawer_open,
R.string.drawer_close) {
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
}
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}
};
RellenarNoticias();
InicializarLista();
mDrawerLayout.setDrawerListener(mDrawerToggle);
getActionBar().setDisplayShowHomeEnabled(true);
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle.syncState();
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
if(mDrawerLayout.isDrawerOpen(leftDrawerList)) {
mDrawerLayout.closeDrawer(leftDrawerList);
}
else {
mDrawerLayout.openDrawer(leftDrawerList);
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}

You need to extend either ActionbarActivity, or AppCompatActivity, and use a Toolbar widget to be in the beginning of your Activity. In your activities on create, do the following:
public class YourActivity extends ActionBarActivity{
...
...
private Toolbar mToolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_layout);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
//Set toggle with toolbar now!
mDrawerToggle = new ActionBarDrawerToggle(
this,
mDrawerLayout,
mToolbar,
R.string.drawer_open,
R.string.drawer_close) {
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
}
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}
};
And for your Toolbar that lives in your activity xml (the very first element for your layout!)
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:background="#color/primary_color"
android:title="#string/app_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
app:theme="CreateSomeStyleHereIfYouNeed"
app:popupTheme="#android:style/Theme.Holo.Light"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
</android.support.v7.widget.Toolbar>

I fix the problem changing this function
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
if(mDrawerLayout.isDrawerOpen(leftDrawerList)) {
mDrawerLayout.closeDrawer(leftDrawerList);
}
else {
mDrawerLayout.openDrawer(leftDrawerList);
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}
New function that fix the problem
#Override public boolean onOptionsItemSelected(MenuItem item) {if (mDrawerToggle.onOptionsItemSelected(item)){ return true; } return super.onOptionsItemSelected(item); }

NavigationDrawer is not working

I have read the documentation for NavigationDrawer and tried to create it in my own application. But there is a trouble: the ListView that should be used as menu just floats over the main content and I can't perform any actions with it (e.g. close by swipe). What is the problem?
<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" >
<LinearLayout
android:id="#+id/mainPageLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#e5e5e5"
android:orientation="vertical" >
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" >
<android.support.v4.view.ViewPager
android:id="#+id/mainScreenViewPager"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" >
<android.support.v4.view.PagerTitleStrip
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top" />
</android.support.v4.view.ViewPager>
</FrameLayout>
</LinearLayout>
<ListView
android:id="#+id/navigationDrawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:choiceMode="singleChoice"
android:divider="#android:color/transparent"
android:dividerHeight="0dp"
android:gravity="start" >
</ListView>
</android.support.v4.widget.DrawerLayout>
And the drawer initialization:
String[] titles = getResources().getStringArray(R.array.lists_titles);
ListView drawer = (ListView) findViewById(R.id.navigationDrawer);
drawer.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, titles));
drawer.setOnItemClickListener(new DrawerItemClickListener());
Thanks.

Here is a rough sample of codes that work for me, they're a combination of things from android developers site and StylingAndroid blog:
DrawerLayout mDrawerLayout;
ActionBarDrawerToggle mDrawerToggle;
#Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_layoutxml_id);
// must initialize mDrawerLayout and mDrawerToggle in main thread
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerToggle = new ActionBarDrawerToggle(
this, /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer icon to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description */
R.string.drawer_close /* "close drawer" description */
) {
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
// do something
}
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
// do something
}
};
String[] titles = getResources().getStringArray(R.array.lists_titles);
ListView drawer = (ListView) findViewById(R.id.navigationDrawer);
drawer.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, titles));
drawer.setOnItemClickListener(new DrawerItemClickListener());
// Set the drawer toggle as the DrawerListener
mDrawerLayout.setDrawerListener(mDrawerToggle);
ActionBar actionbar = getSupportActionBar();
actionbar.setDisplayHomeAsUpEnabled(true);
actionbar.setHomeButtonEnabled(true);
}
#Override
protected void onPostCreate(Bundle savedInstanceState)
{
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
if(item.getItemId() == android.R.id.home) {
if (mDrawerLayout.isDrawerVisible(GravityCompat.START)) {
mDrawerLayout.closeDrawer(GravityCompat.START);
} else {
mDrawerLayout.openDrawer(GravityCompat.START);
}
}
return super.onOptionsItemSelected(item);
}