Develop Reference

Always getting the error messsage: No drawer view found with gravity LEFT

I'm working on an app but I have some troubles with drawer layout. I always getting the error message like I mentioned in the title but I have no such Gravity with LEFT value. All I have are gravities with END values and that's all.
Here is my Java code:
public class HomeActivity extends AppCompatActivity {
private ActionBarDrawerToggle toggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
Toolbar mainToolBar =findViewById(R.id.main_page_toolbar);
DrawerLayout mainDrawerLayout = findViewById(R.id.main_page_drawer_layout);
NavigationView mainNavigationView = findViewById(R.id.main_page_navigation_view);
setSupportActionBar(mainToolBar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowTitleEnabled(false);
getSupportActionBar().setHomeButtonEnabled(true);
toggle = new ActionBarDrawerToggle(this,mainDrawerLayout,mainToolBar,R.string.openDrawer,R.string.closeDrawer);
mainDrawerLayout.addDrawerListener(toggle);
toggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
toggle.onConfigurationChanged(newConfig);
}
}
And here is my XML code:
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:openDrawer="end"
tools:context=".Activities.HomeActivity"
android:id="#+id/main_page_drawer_layout"
android:fitsSystemWindows="true">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include layout="#layout/home_main_page"
android:layout_height="match_parent"
android:layout_width="match_parent"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="end"
app:headerLayout="#layout/home_side_menu_header_layout"
app:menu="#menu/home_side_menu"
android:layoutDirection="rtl"
android:id="#+id/main_page_navigation_view"/>

You need to handle navigation click on Toolbar like below:
mainToolBar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mainDrawerLayout.isDrawerOpen(GravityCompat.END))
mainDrawerLayout.closeDrawer(GravityCompat.END);
else
mainDrawerLayout.openDrawer(GravityCompat.END);
}
});
Also don't forgot to close drawer whenever needed like below:
mainDrawerLayout.closeDrawer(GravityCompat.END)

How to load the drawer as in the image on a button click

I have an app that displays the default activity as:
When clicked the hamburger icon opens left main navigation drawer as:
And when clicked the FILTER button opens another drawer from the right as:
I know how the left navigation drawer is displayed (all java codes and layouts)
What is the code for displaying the drawer that is opening from the right ?
and also i wanna know, how the on click listener is set up even if the FILTER button is outside the toolbar ?
Can anyone help?

Just change the value of tools:openDrawer to end (i.e tools:openDrawer="end"), also add android:layout_gravity="end" in <android.support.design.widget.NavigationView>. Here's the solution.
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: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="end">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="end"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
MainActivity.java
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
final 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();
//Add this piece of code
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(drawer.isDrawerOpen(Gravity.RIGHT)){
drawer.closeDrawer(Gravity.RIGHT);
}else{
drawer.openDrawer(Gravity.RIGHT);
}
}
});
}

Check out this -http://updateunlimited.blogspot.in/2015/12/double-sided-nav-drawers.html
it will take less time
also check how it open from right -https://stackoverflow.com/a/19358114/4741746 and https://stackoverflow.com/a/32155976/4741746 and https://stackoverflow.com/a/17156831/4741746
Best of luck

How to disable manual sliding-out of navigation view

I have two navigation views in my Activity. One enters from the right and the other enters from the left.
In the navigtionview that enters from from the left, different fragments are started when when the items are clicked. And also, this same navigationview has menu items which is common to all the launched fragments. I don't have any problem with this one.
Now, the navigationview that enters from the right has menu items which are only peculiar to the particular fragment started when the first item in the left entering navigationview is clicked. What this means is that, when you clicked the first item in the left entering navigation drawer, a fragament is started, and items in the right entering navigationview has items related to this fragment.
So, this right navigationview is stared when a menuitem in the toolbar is clicked. And this menu item is not visible when other fragments (apart from the aforementioned) is in view.
The problem I have is that, even when the right entering navigationview cannot be launched through the menuitem in other fragments, it can still be started by sliding the right edge of the screen. So I want to totally disable the sliding feature of this right entering navigationview, so it can only be launched when the menu item is clicked.
Codes
activity_main
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
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:openDrawer="start">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="false"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer"/>
<android.support.design.widget.NavigationView
android:id="#+id/cat_nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="end"
android:fitsSystemWindows="false">
/** This navigationview enters from the right, I start a fragment with framelayout below.
The fragment contains a recyclerview **/
<FrameLayout
android:id="#+id/transport_cat_container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
Snippets of MainActivity
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close) {
#Override
public void onDrawerClosed(View v){
super.onDrawerClosed(v);
}
#Override
public void onDrawerOpened(View v) {
super.onDrawerOpened(v);
}
};
drawer.addDrawerListener(mDrawerToggle);
mDrawerToggle.syncState();
navigationView.setNavigationItemSelectedListener(this);
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else if (drawer.isDrawerOpen(GravityCompat.END)) {
drawer.closeDrawer(GravityCompat.END);
} else {
super.onBackPressed();
}
}
ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close) {
#Override
public void onDrawerClosed(View v){
super.onDrawerClosed(v);
}
#Override
public void onDrawerOpened(View v) {
super.onDrawerOpened(v);
}
};
drawer.addDrawerListener(mDrawerToggle);
mDrawerToggle.syncState();
navigationView.setNavigationItemSelectedListener(this);
Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
Fragment fragment;
if (id == R.id.menu_cars) {
fragment = new CarsFragment();
startCarsFrag() //Method to start CarsFragment()
//The right entering drawer should only be enabled for this fragment
}
if (id == R.id.menu_trains) {
fragment = new TrainsFragment();
startTrainFrag() //Method to start TrainsFragment
}
if (id == R.id.menu_lorries) {
fragment = new LorriesFragment();
startLorriesFrag() //Method to start LorriesFragment
}
if (drawer != null) {
drawer.closeDrawer(GravityCompat.START);
}
return true;
}

The DrawerLayout#setDrawerLockMode() method is what you're looking for. When locked, a drawer View cannot be dragged open/closed, though it will still respond to the openDrawer() and closeDrawer*() methods.
Since you're using two drawers, and want to lock only the one, you'll need to call the method with a second argument to indicate which drawer to lock/unlock. For example, to lock your secondary drawer closed:
drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED, GravityCompat.END);

Navigation Drawer Header is not hiding

I tried to create one simple app with Drawer Menu. I created a project with Android Studio and select Navigation Drawer Layout. I'm trying to hide navigation drawer header and put it on toolbar... I found the way to put on toolbar but I can't find hide RED part of header in picture. Can you help me please.
Here is my layout page xml codes
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
android:layout_marginTop="?attr/actionBarSize" //With this code i put menu under toolbar
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
Here is my MainActivity.java
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
FragmentManager fragmentManager = getFragmentManager();
if (id == R.id.nav_first_layout) {
fragmentManager.beginTransaction().replace(R.id.content_frame,new FirstFragment()).commit();
} else if (id == R.id.nav_second_layout) {
fragmentManager.beginTransaction().replace(R.id.content_frame,new SecondFragment()).commit();
} else if (id == R.id.nav_third_layout) {
fragmentManager.beginTransaction().replace(R.id.content_frame,new ThirdFragment()).commit();
} else if (id == R.id.nav_home) {
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(intent);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
How can I hide that red part??

Set fitsystemwindow=false under android.support.design.widget.NavigationView in xml.

Use this In your MainActivity if you want to do it programmatically else see the second option below.
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
View header = navigationView.getHeaderView(0);
header.setVisibility(View.GONE);
OR if you not wanna use that and want to accomplish this via xml then check below option.
In your xml file of main activity you should have NavigationView like this
<android.support.design.widget.NavigationView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/navigation_view_I"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="#menu/drawer_menu"
app:headerLayout="#layout/navigation_drawer_header">
Remove last line from the above NavigationView which is this
app:headerLayout="#layout/navigation_drawer_header"

Add below code inside of onCreateView() of NavigationDrawer Fragment class
View headerView= LayoutInflater.from(this).inflate(R.layout.drawer_header, null);
navigationView.addHeaderView(headerView);
navigationView.getHeaderView(0).setVisibility(View.GONE);
Note:- relace R.layout.drawer_header by your header view resource file.

Android 5 Hamburger doen't open the drawer

I'm trying to make a simple navigation drawer, matching the material guidelines. I'm following along the official training. Everything is running well, only a tap on the hamburger icon won't open the drawer. I can open the drawer with a swipe from the side, only the hamburger isn't working. I already looked up some other questions like this one, but nothing helped. What did I miss?
Here is my code:
Activity.java:
public class stream extends ActionBarActivity {
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private String[] mDrawerTitles;
private ListView mDrawerList;
private Toolbar mToolbar;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_stream);
// Init the Support-toolbar
mToolbar = (Toolbar) findViewById(R.id.toolbar);
if (mToolbar != null) {
setSupportActionBar(mToolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, mToolbar,
R.string.navigation_drawer_open, R.string.navigation_drawer_close);
mDrawerLayout.setDrawerListener(mDrawerToggle);
// enable ActionBar app icon to behave as action to toggle nav drawer
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = new MenuInflater(this);
inflater.inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public void onBackPressed() {
if(mDrawerLayout.isDrawerOpen(Gravity.START|Gravity.LEFT)){
mDrawerLayout.closeDrawers();
return;
}
super.onBackPressed();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggle
mDrawerToggle.onConfigurationChanged(newConfig);
}
}
Layout.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="de.square7.gtz.lwenzahn.stream"
android:background="#color/ColorBackground">
<!-- Toolbar -->
<include layout="#layout/toolbar"/>
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- Content View -->
<FrameLayout
android:id="#+id/content_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="56dp"/>
<!-- Drawer -->
<ListView
android:id="#+id/left_drawer"
android:layout_width="270dp"
android:layout_height="match_parent"
android:focusableInTouchMode="false"
android:choiceMode="singleChoice"
android:background="#ffffffff"
android:layout_gravity="start"
android:elevation="8dp" >
</ListView>
</android.support.v4.widget.DrawerLayout>

You are not using the DrawerLayout as the root layout of the activity. You are almost there but you see how you use the RelativeLayout as the root (or at least that is what I infer from the posted xml - the RelativeLayout does not look like it has a closing tag so maybe you just missed it)?
The NavigationDrawer opens on the tap of the "hamburger" (or icon) only when it is the root so that Android knows that the DrawerLayout is encompassing everything. My guess is the toolbar you are including is interfering with the layout.