Develop Reference

onClick event in navigation drawer

I have made a navigation drawer in Android in which I want to implement onClick for it. This is my main activity:
public class MainActivity extends AppCompatActivity {
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle aToggle;
private Toolbar toolbar;
private RecyclerView recyclerView;
private RecyclerAdapter recyclerAdapter;
private RecyclerView.Adapter adapter;
private NavigationView navigationView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer);
aToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.drawable.navig, R.string.open, R.string.Close);
navigationView = (NavigationView) findViewById(R.id.nav_view);
mDrawerLayout.addDrawerListener(aToggle);
toolbar = (Toolbar) findViewById(R.id.nav_action);
toolbar.setNavigationIcon(R.drawable.navig);
setSupportActionBar(toolbar);
aToggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
navigationView.setItemIconTintList(null);
recyclerView = (RecyclerView) findViewById(R.id.recycler);
recyclerAdapter = new RecyclerAdapter(getApplicationContext());
RecyclerView.LayoutManager layoutManager = new GridLayoutManager(this, 2);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(recyclerAdapter);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (aToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}}
This is my XML layout for the activity:
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.alpit.formula2.MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="0dp"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/recycler"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="58dp"
android:orientation="vertical"></android.support.v7.widget.RecyclerView>
<android.support.v7.widget.Toolbar
android:id="#+id/nav_action"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#EF6C00"
android:orientation="vertical"
android:theme="#style/ThemeOverlay.AppCompat.Dark"></android.support.v7.widget.Toolbar>
</RelativeLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#FFA726"
app:menu="#menu/navigation_menu"
app:theme="#style/NavigationTheme">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
This is my menu items:
<group
android:id="#+id/gp1"
android:checkableBehavior="single">
<item
android:id="#+id/nav_maths"
android:icon="#drawable/maths"
android:title="Maths" />
<item
android:id="#+id/nav_physics"
android:icon="#drawable/physics"
android:title="Physics" />
<item
android:id="#+id/nav_chem"
android:icon="#drawable/chem"
android:title="Chemistry" />
<item
android:id="#+id/EEE"
android:icon="#drawable/lightbulb"
android:title="Electronics Electrical" />
</group>
<group
android:id="#+id/gp2"
android:checkableBehavior="single">
<item
android:id="#+id/unitconversion"
android:icon="#drawable/unitconversion"
android:title="Unit Conversion" />
<item
android:id="#+id/Scientist"
android:icon="#drawable/scientist"
android:title="Scientist" />
<item
android:id="#+id/favourite"
android:icon="#drawable/favourite"
android:title="Favourite" />
</group>
<group
android:id="#+id/gp3"
android:checkableBehavior="single">
<item
android:id="#+id/Share"
android:icon="#drawable/share"
android:title="Share" />
<item
android:id="#+id/Rate"
android:icon="#drawable/rate"
android:title="Rate" />
<item
android:id="#+id/ads"
android:icon="#drawable/ad"
android:title="Remove Ads" />
<item
android:id="#+id/aboutus"
android:icon="#drawable/aboutus"
android:title="About Us" />
</group>
</menu>
The problem is I am not able to understand how to implement the onClick on the navigation drawer as it is populated by the list given by us not by any listView.
How can I implement onClick on the items of navigation drawer?

You need to add implements NavigationView.OnNavigationItemSelectedListener
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener
and add method
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
// Handle navigation view item clicks here.
switch (item.getItemId()) {
case R.id.nav_maths: {
//do somthing
break;
}
}
//close navigation drawer
mDrawerLayout.closeDrawer(GravityCompat.START);
return true;
}
method to set Listener
private void setNavigationViewListener() {
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
call method in onCreate()
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setNavigationViewListener()
}

Add NavigationItemSelectedListener event to nav_view
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
Implement your Activity with NavigationView.OnNavigationItemSelectedListener
and add this code for click item
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}

class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val nav_view: NavigationView = findViewById(R.id.nav_view)
nav_view.setNavigationItemSelectedListener(this)
nav_view.bringToFront();
}
override fun onNavigationItemSelected(item: MenuItem): Boolean {
when(item.itemId){
R.id.miid_log_out -> Toast.makeText(this, "Working", Toast.LENGTH_SHORT).show()
}
return false
}
}

in your
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (aToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}}
add these lines:
switch (item.getItemId()) {
case R.id.nav_maths:
// your logic here.
return true;
case R.id.nav_physics:
//your logic here
return true;
default:
return super.onOptionsItemSelected(item);
}

Below code is for adding toggle to DrawerLayout
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);
And to add listener to Navigation menu items
implements NavigationView.OnNavigationItemSelectedListener
and override below method
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if(id == R.id. nav_maths){
//Handle your stuff here
}
}
Add below code to onCreate method
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);

Step-1: Extends the NavigationView.OnNavigationItemSelectedListener on your Activity
Step2:
Then there will show an error then override the method:
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem menuItem) {
return false;
}
get the Id with menuItem.getId() .And Perform Your Action as per your need.
final Step: Add This line in onCreate navigationView.setNavigationItemSelectedListener(this);
That's it.

binding.navigationView.setNavigationItemSelectedListener {
when(it.itemId){
R.id.book -> Toast.makeText(applicationContext, "Booked", Toast.LENGTH_SHORT).show()
}
true
}

fab=(FloatingActionButton)findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
}

Navigation Drawer is not displaying and no error is thrown

The following code is of BaseActivity and this activity is used to implement navigation drawer for different activity
public class BaseActivity extends AppCompatActivity implements
NavigationView.OnNavigationItemSelectedListener {
private NavigationView navigationView;
private DrawerLayout fullLayout;
private Toolbar toolbar;
private ActionBarDrawerToggle drawerToggle;
private int selectedNavItemId;
#Override
public void setContentView(#LayoutRes int layoutResID) {
fullLayout = (DrawerLayout) getLayoutInflater().inflate(R.layout.activity_base, null);
FrameLayout activityContainer = (FrameLayout) fullLayout.findViewById(R.id.activity_content);
getLayoutInflater().inflate(layoutResID, activityContainer, true);
/**
* Note that we don't pass the child's layoutId to the parent,
* instead we pass it our inflated layout.
*/
super.setContentView(fullLayout);
toolbar = (Toolbar) findViewById(R.id.toolbar);
navigationView = (NavigationView) findViewById(R.id.navigationView);
if (useToolbar())
{
setSupportActionBar(toolbar);
}
else
{
toolbar.setVisibility(View.GONE);
}
setUpNavView();
}
protected boolean useToolbar()
{
return true;
}
protected void setUpNavView()
{
navigationView.setNavigationItemSelectedListener(this);
if( useDrawerToggle()) { // use the hamburger menu
drawerToggle = new ActionBarDrawerToggle(this, fullLayout, toolbar,
R.string.nav_drawer_opened,
R.string.nav_drawer_closed);
fullLayout.setDrawerListener(drawerToggle);
drawerToggle.syncState();
} else if(useToolbar() && getSupportActionBar() != null) {
// Use home/back button instead
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(getResources()
.getDrawable(R.drawable.abc_ic_ab_back_mtrl_am_alpha));
}
}
protected boolean useDrawerToggle()
{
return true;
}
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
fullLayout.closeDrawer(GravityCompat.START);
selectedNavItemId = menuItem.getItemId();
return onOptionsItemSelected(menuItem);
}
#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
switch (id)
{
case R.id.action_main:
startActivity(new Intent(this, MainActivity.class));
return true;
case R.id.action_order:
startActivity(new Intent(this, Orders.class));
return true;
case R.id.rate_card:
startActivity(new Intent(this,RateCard.class));
return true;
}
return super.onOptionsItemSelected(item);
}
And here is xml file design which is used for implementation purpose
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
android:id="#+id/activity_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:fitsSystemWindows="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:background="?attr/colorPrimary"
app:theme="#style/MainActionBar"/>
<FrameLayout
android:id="#+id/activity_content"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigationView"
android:layout_width="wrap_content"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="#menu/menu_base"/>
</android.support.v4.widget.DrawerLayout>
I tried all thing but not getting proper way to implement.Any suggestion how to correct this will be helpful

Android: How to set android.support.design.widget.NavigationView open from right in android studio 1.5.1?

I am using android studio 1.5.1. this version makes navigation drawer activity by its own:
<?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">
<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"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
But the slider menu opens from left. I want to set it to open from write.
so I changed the above code to this code:
<?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="right">
<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="right"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
so in the design mode, the drawer menu comes to the right position.
and I write this code (accourding to an answer in the stack overflow) in my MainActivity.java:
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
DrawerLayout drawer;
#Override
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, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
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.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item != null && item.getItemId() == android.R.id.home) {
if (drawer.isDrawerOpen(Gravity.RIGHT)) {
drawer.closeDrawer(Gravity.RIGHT);
} else {
drawer.openDrawer(Gravity.RIGHT);
}
} else {
return false;
}
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
but when I run the program, in genymotion, the menu button is still on the left upper side and when I click on it, the program crash...
what is the problem and how can I set this menu to open from right?!

Try to not use ActionBarDrawerToggle class and in your R.menu.main, create a menu item (with a hamburger icon for example) which will be always visible for your Toolbar. When Activity is rendered, this menu item will be placed to the right in your Toolbar. So instead of using android.R.id.home, use your own menu item id when onOptionsItemSelected is called. And in your xml file, change android:layout_gravity="right" to android:layout_gravity="end". When you call drawer.openDrawer();, use the correct parameter accordingly for this method.

Why android navigation drawer creating two headers?

I followed a tutorial to push facebook info from login into an activity with a navigation, then put the into on top, as shown, which, after days of altering code, I finally got it to work.
But now I cant get the original header to go away. I've tried changing every part of the code, but I always end up with all or nothing. I know two heads are better than one, but this is an exception to the rule.
Also, I guess I cant post images, so, the original header is on top, where it should be.
The new header with my facebook profile picture and info, is underneath that.
And below that, starts the navigation drawer menu.
public class HomeActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
JSONObject response, profile_pic_data, profile_pic_url;
TextView user_name, user_email, tokens;
ImageView user_picture;
NavigationView navigation_view;
String name;
Button button2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
tokens = (TextView)findViewById(R.id.textView17);
button2 = (Button)findViewById(R.id.button2);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
Intent intent = getIntent();
String jsondata = intent.getStringExtra("jsondata");
final String uid = intent.getStringExtra("Uid");
setNavigationHeader(); // call setNavigationHeader Method.
setUserProfile(jsondata, uid);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setVisibility(View.INVISIBLE);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Firebase ref = new Firebase("https://luckycashslots.firebaseio.com/data/users/" + MainActivity.uID + "/");
Tokens token = new Tokens("100");
ref.setValue(token);
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);
//Toast.makeText(getApplicationContext(), uid, Toast.LENGTH_LONG).show();
button2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Toast.makeText(getApplicationContext(), name, Toast.LENGTH_LONG).show();
updateText();
}
});
Firebase ref = new Firebase("https://luckycashslots.firebaseio.com/data/users/" + MainActivity.uID + "/");
Firebase tokRef = ref.child("tokens");
//tokRef.setValue(mAuthData.getProvider());
//Tokens token = new Tokens(100);
//ref.setValue(token);
ref.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(DataSnapshot dataSnapshot) {
if (dataSnapshot.child("tokens").getValue() != null) {
name = (String) dataSnapshot.child("tokens").getValue().toString();
tokens.setText(name);
//tokens.setText(dataSnapshot.getValue().toString());
// Toast.makeText(getApplicationContext(), name, Toast.LENGTH_LONG).show();
// System.out.println(dataSnapshot.getValue());
// String woot = dataSnapshot.getValue().toString();
// tokens.setText(woot);
}
}
#Override
public void onCancelled(FirebaseError firebaseError) {
Toast.makeText(getApplicationContext(), "couldnt update token text", Toast.LENGTH_LONG).show();
}
});
}
public void updateText(){
Firebase ref = new Firebase("https://luckycashslots.firebaseio.com/data/users/" + MainActivity.uID + "/");
Firebase tokRef = ref.child("tokens");
//tokRef.setValue(mAuthData.getProvider());
// Tokens token = new Tokens(100);
// ref.setValue(token);
ref.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot tokenSnapshot: dataSnapshot.getChildren()){
Tokens token = tokenSnapshot.getValue(Tokens.class);
System.out.println(token.toString());
name = token.toString();
// name = (String) dataSnapshot.child("tokens").getValue();
tokens.setText(name);
}
// name = (String) dataSnapshot.child("tokens").getValue().toString();
// tokens.setText(name);
}
#Override
public void onCancelled(FirebaseError firebaseError) {
Toast.makeText(getApplicationContext(), "couldnt update token text", Toast.LENGTH_LONG).show();
}
});
}
public void setNavigationHeader(){
navigation_view = (NavigationView) findViewById(R.id.nav_view);
navigation_view.removeHeaderView(null);
View header = LayoutInflater.from(this).inflate(R.layout.nav_header_home, null);
navigation_view.addHeaderView(header);
user_name = (TextView) header.findViewById(R.id.username);
user_picture = (ImageView) header.findViewById(R.id.profile_pic);
user_email = (TextView) header.findViewById(R.id.email);
}
public void setUserProfile(String jsondata, String uid){
try
{
response = new JSONObject(jsondata);
user_email.setText(response.get("email").toString());
// user_email.setText(MainActivity.uEmail);
user_name.setText(response.get("name").toString());
// user_name.setText(MainActivity.uName);
profile_pic_data = new JSONObject(response.get("picture").toString());
profile_pic_url = new JSONObject(profile_pic_data.getString("data"));
Picasso.with(this).load(profile_pic_url.getString("url")).into(user_picture);
}
catch
(Exception e) {
e.printStackTrace();
}
}
#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.home, 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);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_slots) {
// Handle the camera action1
Intent intent2 = new Intent(this, SlotPageView.class);
startActivity(intent2);
} else if (id == R.id.nav_spin) {
Intent intent2 = new Intent(this, DailySpinActivity.class);
startActivity(intent2);
} else if (id == R.id.nav_offers) {
} else if (id == R.id.nav_prizes) {
Intent intent2 = new Intent(this, PrizesActivity.class);
startActivity(intent2);
} else if (id == R.id.nav_winners) {
Intent intent2 = new Intent(this, WinnersActivity.class);
startActivity(intent2);
} else if (id == R.id.nav_stats) {
} else if (id == R.id.nav_account) {
Intent intent2 = new Intent(this, AccountActivity.class);
startActivity(intent2);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
activity_home.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="start">
<include layout="#layout/app_bar_home" 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"
app:headerLayout="#layout/nav_header_home" app:menu="#menu/activity_home_drawer" />
App bar home xml
<?xml version="1.0" encoding="utf-8"?>
<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="learn2crack.learn2crackfb.HomeActivity">
<android.support.design.widget.AppBarLayout android:layout_height="wrap_content"
android:layout_width="match_parent" android:theme="#style/AppTheme.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:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_home" />
<android.support.design.widget.FloatingActionButton android:id="#+id/fab"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_gravity="bottom|end" android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
Nav header home xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="#dimen/nav_header_height"
android:background="#drawable/side_nav_bar"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:theme="#style/ThemeOverlay.AppCompat.Dark" android:orientation="vertical"
android:gravity="bottom">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profile_pic"
android:layout_width="80dp"
android:layout_height="80dp"
android:paddingTop="#dimen/nav_header_vertical_spacing"
android:src="#android:drawable/sym_def_app_icon"
/>
<TextView android:id="#+id/username"
android:layout_width="match_parent" android:layout_height="wrap_content"
android:paddingTop="#dimen/nav_header_vertical_spacing"
android:text="Android Studio"
android:textSize="14dp"
android:textAppearance="#style/TextAppearance.AppCompat.Body1"
android:textColor="#000000" />
<TextView
android:id="#+id/email"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="android.studio#android.com" />
</LinearLayout>

u have to pass the header view into
navigation_view.removeHeaderView(navigation_view.getHeaderView(0);
and not null
navigation_view.removeHeaderView(null);

when you add header using app:headerLayout="#layout/nav_header_home" just like below
<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"
app:headerLayout="#layout/nav_header_home" app:menu="#menu/activity_home_drawer" />
then no need to add header again from code
remove below lines from setNavigationHeader() method
navigation_view.removeHeaderView(null);
View header = LayoutInflater.from(this).inflate(R.layout.nav_header_home, null);
navigation_view.addHeaderView(header);
after remove method look like below
Edit /
public void setNavigationHeader(){
navigation_view = (NavigationView) findViewById(R.id.nav_view);
View header = LayoutInflater.from(this).inflate(R.layout.nav_header_home, null);
user_name = (TextView) navigation_view.findViewById(R.id.username);
user_picture = (ImageView) navigation_view.findViewById(R.id.profile_pic);
user_email = (TextView) navigation_view. findViewById(R.id.email);
}

Try this, It's workable and tested.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
navigationView.removeHeaderView(navigationView.getHeaderView(0));
View headerLayout = navigationView.inflateHeaderView(R.layout.nav_header_main);
ImageView user_dp = headerLayout.findViewById(R.id.user_dp);
TextView user_fullname = headerLayout.findViewById(R.id.user_fullname);
TextView user_email = headerLayout.findViewById(R.id.user_email);
user_dp.setBackgroundResource(R.drawable.user);
user_fullname.setText(fullName);
user_email.setText(uemail);
}

Android-NavigationView from right to left

I'm using The last version of Android Studio (1.5) and I want to make a menu using Drawer Layout, for position its call GravityCompat.
I'm trying to use this components and modify it, putting the Drawer out from right to left. Here is my code.
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.END)) {
drawer.closeDrawer(GravityCompat.END);
} 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.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);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.END);
return true;
}
}
The 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="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="wrap_content"
android:layout_gravity="end"
android:fitsSystemWindows="true"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
As you can see, GravityCompat don't let me to put right instead of END or START, and if I put it in the XML, it crash.
with the next error:
java.lang.IllegalArgumentException: No drawer view found with gravity LEFT

First of all replace on DrawerLayout the tools:openDrawer="start" with tools:openDrawer="end". Now your problem is on the toggle, which opens the left drawer, and because you have only right drawer it throws the exception. You can add your own button on the actionbar (on the right side) to open the drawer. To do that change your app_bar.xml like this
<?xml version="1.0" encoding="utf-8"?>
<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">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<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" />
<FrameLayout
android:id="#+id/drawer_button"
android:layout_width="50dp"
android:layout_height="?attr/actionBarSize"
android:layout_alignParentRight="true"
android:clickable="true">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center_vertical"
android:src="#mipmap/ic_drawer" />
</FrameLayout>
</RelativeLayout>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
Then change your onCreate method from your Activity like this
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
findViewById(R.id.drawer_button).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// open right drawer
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.openDrawer(GravityCompat.END);
}
});
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
Also you can find the image for your drawer here or here.
I hope this will help you. :)

use a custom drawerLayout just like this :
public class TaskManagerDrawerLayout extends DrawerLayout {
public TaskManagerDrawerLayout(Context context) {
super(context);
}
public TaskManagerDrawerLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public TaskManagerDrawerLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
try {
return super.onInterceptTouchEvent(ev);
} catch (IllegalArgumentException e) {
e.printStackTrace();
return false;
}
}
#Override
public void closeDrawer(int gravity) {
super.closeDrawer(GravityCompat.END);
}
#Override
public void openDrawer(int gravity) {
super.openDrawer(GravityCompat.END);
}
}

After implementing left side navigation drawer change the following properties.
tools:openDrawer="start" in DrawerLayout
android:layout_gravity="end" in NavigationView
toolbar.setNavigationIcon (R.color.transparent); mDrawerToggle.setDrawerIndicatorEnabled (false);
toolbar.setNavigationOnClickListener (new View.OnClickListener () { #Override public void onClick(View view) { if (mDrawerLayout.isDrawerOpen (Gravity.END)) { mDrawerLayout.closeDrawer (Gravity.END); } else { mDrawerLayout.openDrawer (Gravity.END); } } });