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Android Navigation Drawer with a Floating Action Button [duplicate]

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Android navigationview with header set , onItemClick not working
(3 answers)
NavigationView OnNavigationItemSelectedListener not being called
(3 answers)
Closed 2 years ago.
I am using an android navigation drawer to work with a Floating Action Button. I have coded for that but when the app runs, the navigation drawer opens and closes, but when I click on an Item it doesn't do the task that I want it to do.
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/btn_menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_menu"
/>
The following is the Java code for my Navigation Drawer
final DrawerLayout drawer = findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, R.string.navigation_drawer_open,R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = findViewById(R.id.nav_view);
Menu menu = navigationView.getMenu();
FloatingActionButton btnMenu = findViewById(R.id.btn_menu);
btnMenu.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!drawer.isDrawerOpen(Gravity.LEFT)) drawer.openDrawer(Gravity.LEFT);
else drawer.closeDrawer(Gravity.RIGHT);
}
});
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.item_1) {
//Update App
} else if (id == R.id.item_2) {
Intent i = new Intent(HomeActivity.this, ProfileActivity.class);
startActivity(i);
} else if (id == R.id.item_3) {
Intent i = new Intent(HomeActivity.this, SubscriptionsActivity.class);
startActivity(i);
} else if (id == R.id.item_4) {
//Share App
} else if (id == R.id.item_5) {
Intent i = new Intent(HomeActivity.this, SupportActivity.class);
startActivity(i);
} else if (id == R.id.item_6) {
Intent i = new Intent(HomeActivity.this, AboutActivity.class);
startActivity(i);
} else if (id == R.id.item_7) {
//Privacy Policy
} else if (id == R.id.item_8) {
//Our Website
}
DrawerLayout drawer = findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
Also I have implemented implements NavigationView.OnNavigationItemSelectedListener to my class
The following is the drawer layout
<?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:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:background="#color/bgcolor"
tools:openDrawer="start">
<com.google.android.material.navigation.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" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/btn_menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="start|top"
android:layout_margin="10dp"
app:elevation="2dp"
app:fabCustomSize="40dp"
android:src="#drawable/ic_menu"
/>
</RelativeLayout>
</androidx.drawerlayout.widget.DrawerLayout>

Navigation Drawer App does not change fragments when clicked

Good Morning, I am a newbie programmer, and I use Navigation Drawer Android Studio Activity to start. Everything is ok when I compile, but when I use the app and click on the different options, nothing happens (I mean that the layout doesn't change and remain on the activity_main.xml). I look for other questions but (I think) no one has had my problem.
MainActivity:
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout drawer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Ma giusto a provare", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
drawer = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
}
#Override
public void onBackPressed() {
DrawerLayout drawer = 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) {
// 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.
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
switch(item.getItemId()) {
case R.id.nav_home:
ft.replace(R.id.fragment_container
, new CulturaClass()).commit();
break;
case R.id.nav_gallery:
ft.replace(R.id.fragment_container
, new CulturaClass()).commit();
break;
}
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:title="#string/action_settings"
app:showAsAction="never" />
</menu>
content_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".MainActivity"
tools:showIn="#layout/app_bar_main">
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
</android.support.constraint.ConstraintLayout>
activity_main_drawer.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:showIn="navigation_view">
<group android:checkableBehavior="single">
<item
android:id="#+id/nav_home"
android:icon="#drawable/ic_menu_camera"
android:title="#string/menu_home" />
<item
android:id="#+id/nav_gallery"
android:icon="#drawable/ic_menu_gallery"
android:title="#string/menu_Cultura" />
<item
android:id="#+id/nav_slideshow"
android:icon="#drawable/ic_menu_slideshow"
android:title="#string/menu_organizer" />
<item
android:id="#+id/nav_tools"
android:icon="#drawable/ic_menu_manage"
android:title="#string/menu_tools" />
</group>
<item android:title="Communicate">
<menu>
<item
android:id="#+id/nav_share"
android:icon="#drawable/ic_menu_share"
android:title="#string/menu_share" />
<item
android:id="#+id/nav_send"
android:icon="#drawable/ic_menu_send"
android:title="#string/menu_send" />
</menu>
</item>
</menu>
fragment_cultura.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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">
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cultura generale!"
tools:layout_editor_absoluteX="171dp"
tools:layout_editor_absoluteY="320dp" />
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="VVVVai!"
tools:layout_editor_absoluteX="161dp"
tools:layout_editor_absoluteY="403dp" />
</android.support.constraint.ConstraintLayout>
CulturaClass.java
public class CulturaClass extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_cultura,container,false);
}
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="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" />
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="hello" />
</android.support.v4.widget.DrawerLayout>

Instead of R.id.fragment_container provide name for FrameLayout in activity_main.xml and pass that name while replacing fragment i.e.
case R.id.nav_home:
ft.replace(R.id.<name_of_framelayout>, new CulturaClass()).commit();
break;
case R.id.nav_gallery:
ft.replace(R.id.<name_of_framelayout>, new CulturaClass()).commit();
break;
This might work for you

Because you are replacing fragment with same class:
case R.id.nav_home:
ft.replace(R.id.fragment_container
, new CulturaClass()).commit(); //Same Class
break;
case R.id.nav_gallery:
ft.replace(R.id.fragment_container
, new CulturaClass()).commit(); //Same Class
break;

You can do this thing simple and easy way using common function or method and You never do mistake.
You have two option to use this One is using JAVA and second, is KOTLIN
The first Method I write below check this:
If you are using java, use like this method
First, create one function i.e name setFragment and pass the parameter Fragment class and second is a title (a Title is an optional if you use or not)
Declare the globally variable
private Fragment fragment = null;
//create function for replace fragment
private void setFragment(Fragment fragmentName, String title) {
fragment = fragmentName;
if (fragment != null) {
// Insert the fragment by replacing any existing fragment
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.framelayout, fragment, fragment.getTag()).commit();
}
setTitle("Dashboard");
// Close the navigation drawer
drawerLayout.closeDrawers();
}
If you are using KOTLIN:
First, create one function i.e name openFragment and pass the parameter Fragment class and second is a title (a Title is an optional if you use or not)
Declare the globally variable
private var fragment: Fragment? = null
//create function for replace fragment
fun openFragment(fragmentClass: Fragment, titleName: String) {
//pass the current fragment class name which you replace
fragment = fragmentClass
//check first fragment is null or not
if (fragment != null) {
val fragmentManager = supportFragmentManager
fragmentManager.beginTransaction()
.replace(R.id.framelayout, fragment!!, fragment!!.tag).commit()
}
title = titleName // replace the titlename
//check the drawerLayout close or not
if (drawerLayout.isDrawerOpen(GravityCompat.START)) {
drawerLayout.closeDrawer(GravityCompat.START)
}
}

ViewPager in navigation drawer - Please give some advice

So overall idea is to in first (main page) have swiping gallery and I did it BUT when I choose options from navigation menu I'm having pager layout witch is my navigation drawer layout and its blank cuz just contain android.support.v4.view.ViewPager
CONTENT_MAIN.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.view.ViewPager
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:orientation="vertical"
android:id="#+id/pager"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.example.marcj.justtest.drawer"
>
</android.support.v4.view.ViewPager>
But now I want to go to my navigation drawer choose on of the options there and have OTHER swiping gallery.. but I don't know How to do it because when I choose option for example SOLD I'm having blank layout.
enter image description here
drawer.java file:
package com.example.marcj.justtest;
import java.math.BigDecimal;
public class drawer extends AppCompatActivity implements
NavigationView.OnNavigationItemSelectedListener {
ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drawer);
viewPager = (ViewPager) findViewById(R.id.pager);
PageAdapter padapter = new PageAdapter(getSupportFragmentManager());
viewPager.setAdapter(padapter);
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.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView)
findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
View headerView = navigationView.getHeaderView(0);
String username = getIntent().getStringExtra("username");
TextView text2 = (TextView) headerView.findViewById(R.id.TVusername);
text2.setText(username);
}
#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.navigation, 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;
} else if (id == R.id.action_contact) {
Toast.makeText(this, "Contact Form", Toast.LENGTH_SHORT).show();
Intent i = new Intent(drawer.this, AcContact.class);
startActivity(i);
contact contactForm = new contact();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.pager,
contactForm, contactForm.getTag()).commit();
} else if (id == R.id.nav_clicked) {
}
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_homepage) {
Intent i= new Intent (drawer.this, drawer.class );
startActivity(i);
} else if (id == R.id.nav_clicked) {
Toast.makeText(this, "Clicked Items", Toast.LENGTH_SHORT).show();
clicked clickedItems = new clicked();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.pager,
clickedItems, clickedItems.getTag()).commit();
} else if (id == R.id.nav_won) {
Toast.makeText(this, "Won Items", Toast.LENGTH_SHORT).show();
won wonItems = new won();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.pager,
wonItems, wonItems.getTag()).commit();
} else if (id == R.id.nav_selling) {
Toast.makeText(this, "Item that you Selling",
Toast.LENGTH_SHORT).show();
selling sellingItems = new selling();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.pager,
sellingItems, sellingItems.getTag()).commit();
} else if (id == R.id.nav_sold) {
Toast.makeText(this, "Sold Items", Toast.LENGTH_SHORT).show();
sold soldItems = new sold();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.pager,
soldItems, soldItems.getTag()).commit();
} else if (id == R.id.nav_topup) {
Toast.makeText(this, "Top-Up Clicks", Toast.LENGTH_SHORT).show();
topup topupItems = new topup();
FragmentManager manager = getSupportFragmentManager();
manager.beginTransaction().replace(R.id.pager,
topupItems, topupItems.getTag()).commit();
} else if (id == R.id.nav_share) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
PageAdapter.java
package com.example.marcj.justtest;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class PageAdapter extends FragmentPagerAdapter {
public PageAdapter (FragmentManager fm){
super(fm);
}
public Fragment getItem (int arg0){
switch (arg0){
case 0:
return new FragmentOne();
case 1:
return new FragmentTwo();
case 2:
return new FragmentThree();
default:
break;
}
return null;
}
public int getCount(){
return 3;
}
}
Activity_drawer.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.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<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_drawer_menu" />
</android.support.v4.widget.DrawerLayout>
app_bar_main.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=".drawer">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme">
<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" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
activity_drawer.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.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<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_drawer_menu" />
</android.support.v4.widget.DrawerLayout>

activity_drawer file:
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.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<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_drawer_menu" />
content_main
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/pager"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.example.marcj.justtest.drawer"
>

Navigation drawer not showing

So literally I copied everything from sample android app for navigation drawer, in sample app it shows, in my it does not.
I'll paste the code below, you tell me if you need any more files!
Here's the code
public class NavigacijskiIzbornik extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_navigacijski_izbornik);
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);
FragmentManager fm = getSupportFragmentManager();
fm.beginTransaction().replace(R.id.content_frame, new NavigacijaPrviFragment()).commit();
}
#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.navigacijski_izbornik, 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) {
FragmentManager fm = getSupportFragmentManager();
int id = item.getItemId();
if (id == R.id.nav_prviLayout) {
fm.beginTransaction().replace(R.id.content_frame, new NavigacijaDrugiFragment()).commit();
} else if (id == R.id.nav_drugiLayout) {
} else if (id == R.id.nav_treciLayout) {
} 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;
}
}
Activity of drawer
<?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_prviLayout" android:icon="#android:drawable/ic_menu_camera"
android:title="Import" />
<item android:id="#+id/nav_drugiLayout" android:icon="#android:drawable/ic_menu_gallery"
android:title="Gallery" />
<item android:id="#+id/nav_treciLayout" android:icon="#android:drawable/ic_menu_slideshow"
android:title="Slideshow" />
<item android:id="#+id/nav_manage" android:icon="#android:drawable/ic_menu_manage"
android:title="Tools" />
</group>
<item android:title="Communicate">
<menu>
<item android:id="#+id/nav_share" android:icon="#android:drawable/ic_menu_share"
android:title="Share" />
<item android:id="#+id/nav_send" android:icon="#android:drawable/ic_menu_send"
android:title="Send" />
</menu>
</item>
</menu>
Activity navigacijski izbornik
<?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_navigacijski_izbornik"
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_navigacijski_izbornik"
app:menu="#menu/activity_navigacijski_izbornik_drawer" />
</android.support.v4.widget.DrawerLayout>

do like bellow..
<RelativeLayout
android:id="#+id/drawer_container"
android:layout_width="280dp"
android:layout_height="match_parent"
android:layout_gravity="left"
android:background="#android:color/white"
android:visibility="visible">
<include
android:id="#+id/rel_drawer_app"
layout="#layout/home_drawer" />
</RelativeLayout>

How to add back button arrow functionality in navigation bar

I am beginner programmer and just resent started android developing.
Watched many answers and couldn't find answer witch would fit for me.
I have added back arrow button in my action bar, but couldn't figure out how to add navigation to first loaded screen.
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);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null){
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
final 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);
getSupportFragmentManager().addOnBackStackChangedListener(new FragmentManager.OnBackStackChangedListener() {
#Override
public void onBackStackChanged() {
toggle.setDrawerIndicatorEnabled(getSupportFragmentManager().getBackStackEntryCount() == 0);
}
});
}
#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) {
// 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;
}
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
Toast.makeText(getApplicationContext(),"Back button clicked", Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
TextView text = (TextView) findViewById(R.id.container_text);
Fragment fragment = null;
if (id == R.id.nav_about) {
fragment = DemoFragment.newInstance("about");
text.setText("1");
} else if (id == R.id.nav_settings) {
fragment = DemoFragment.newInstance("nav settings");
}
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.container, fragment)
.addToBackStack(fragment.getClass().getSimpleName())
.commit();
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
DemoFragment.java
public class DemoFragment extends Fragment {
public static final String TEXT = "text";
public static DemoFragment newInstance(String text) {
Bundle args = new Bundle();
args.putString(TEXT, text);
DemoFragment fragment = new DemoFragment();
fragment.setArguments(args);
return fragment;
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_demo, container, false);
String text = getArguments().getString(TEXT);
return view;
}
AndroidManifest.xml
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
activity_main.xml
<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" />
app_bar_main.xml
<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="lt.simbal.drawer.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
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
android:id="#+id/container"
layout="#layout/content_main" />
<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" />
content_main.xml
<FrameLayout 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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="lt.simbal.drawer.MainActivity"
tools:showIn="#layout/app_bar_main">
<TextView
android:id="#+id/container_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="MAIN_ACTIVITY" />
fragment_demo.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/text"
android:layout_width="match_parent"
android:layout_height="match_parent" />
nav_header_main.xml
<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:gravity="bottom"
android:orientation="vertical"
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">
<ImageView
android:id="#+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="#dimen/nav_header_vertical_spacing"
android:src="#android:drawable/sym_def_app_icon" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/nav_header_vertical_spacing"
android:text="Android Studio"
android:textAppearance="#style/TextAppearance.AppCompat.Body1" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="android.studio#android.com" />
activity_main_drawer.xml
<group android:checkableBehavior="single">
<item
android:id="#+id/nav_about"
android:icon="#drawable/ic_menu_camera"
android:title="#string/about" />
<item
android:id="#+id/nav_settings"
android:icon="#drawable/ic_menu_manage"
android:title="#string/settings" />
</group>

You need to call setHomeAsUpIndicator & setDisplayHomeAsUpEnabled
Set an alternate drawable to display next to the icon/logo/title when
DISPLAY_HOME_AS_UP is enabled. This can be useful if you are using
this mode to display an alternate selection for up navigation, such as
a sliding drawer.
ActionBar actionBar = getSupportActionBar();
if (actionBar != null)
{
......
actionBar.setDisplayHomeAsUpEnabled(true); //Set this to true if selecting "home" returns up by a single level in your UI rather than back to the top level or front page.
actionBar.setHomeAsUpIndicator(R.drawable.Your_Icon); // set a custom icon for the default home button
}
Now
For this handling need to override onOptionsItemSelected(MenuItem item) method in your Activity .
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case R.id.home:
// Add your LOGIC Here
break;
default:
return super.onOptionsItemSelected(item);
}
return true;
}

Alright make sure u do declare activity layout as below -
<activity
android:name="com.example.myfirstapp.DisplayMessageActivity"
android:parentActivityName="com.example.myfirstapp.MainActivity" >
<!-- The meta-data element is needed for versions lower than 4.1 -->
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.myfirstapp.MainActivity" />
</activity>
Now in every activity add below code
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}

add below code in onCreate
final ActionBar actionBar = getSupportActionBar();
if (actionBar != null){
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeAsUpIndicator(R.drawable.back_dark);
}
R.drawable.back_dark is back button image
remove this actionBar.setHomeButtonEnabled(true); from your code
EDITED: found one thing, change below method
#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;
//}
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
Toast.makeText(getApplicationContext(),"Back button clicked", Toast.LENGTH_SHORT).show();
return true;
case R.id.action_settings:
return true;
}
return super.onOptionsItemSelected(item);
}
otherwise your all code is perfect! no need to change naythig
#JonasSeputis: i have use your activity and run in android device its showing toast "Back button clicked" check below code and comment other code for sometime
public class MainActivity extends AppCompatActivity {
private DrawerLayout mDrawerLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
}
/*DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
final 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);
getSupportFragmentManager().addOnBackStackChangedListener(new FragmentManager.OnBackStackChangedListener() {
#Override
public void onBackStackChanged() {
toggle.setDrawerIndicatorEnabled(getSupportFragmentManager().getBackStackEntryCount() == 0);
}
});*/
}
#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;
}*/
switch (item.getItemId()) {
// Respond to the action bar's Up/Home button
case android.R.id.home:
Toast.makeText(getApplicationContext(), "Back button clicked", Toast.LENGTH_SHORT).show();
return true;
case R.id.action_settings:
return true;
}
return super.onOptionsItemSelected(item);
}
}

In your
#Override
public boolean onOptionsItemSelected(MenuItem item){
if (id == android.R.id.home){
// add intent to class you wish to navigate
Intent i = new Intent("com.your.package.classname");
startActivity(i);
}
}

just add this line in
onCreate:
getSupportActionBar().setDisplayHomeAsUpEnabled(true);