Navigation drawer is below toolbar in Android [duplicate] - android

This question already has answers here:
How do I use DrawerLayout to display over the ActionBar/Toolbar and under the status bar?
(10 answers)
Closed 6 years ago.
Hello everyone,
I am a newcomer to Android programming and currently working on a practice app that is more or less a patchwork of tutorial codes.
Right now I have navigation drawer below toolbar. I would like to readjust xml hierarchy so that it stays consistent with Material Design guideline and have navigation drawer above toolbar. It seems like a simple enough task, but for the life of me I can't seem to get it.
Can anyone offer any suggestions?
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:apps="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/background_color">
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/primary_color"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
apps:title="#string/app_name"/>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:apps="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/frame_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</FrameLayout>
<android.support.design.widget.NavigationView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:apps="http://schemas.android.com/apk/res-auto"
android:id="#+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
apps:itemTextColor="#000"
android:fitsSystemWindows="true"
apps:headerLayout="#layout/navigation_header"
apps:menu="#menu/drawer_menu"/>
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
package android.dohyun.projectannie;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
public class MainActivity extends AppCompatActivity {
DrawerLayout mDrawerLayout;
NavigationView mNavigationView;
FragmentManager mFragmentManager;
FragmentTransaction mFragmentTransaction;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mNavigationView = (NavigationView) findViewById(R.id.navigation_view);
mFragmentManager = getSupportFragmentManager();
mFragmentTransaction = mFragmentManager.beginTransaction();
mFragmentTransaction.replace(R.id.frame_layout, new NotesFragment()).commit();
mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
mDrawerLayout.closeDrawers();
if(menuItem.getItemId() == R.id.menu_notes) {
FragmentTransaction fragmentTransactionNotes = mFragmentManager.beginTransaction();
fragmentTransactionNotes.replace(R.id.frame_layout, new NotesFragment()).commit();
}
if(menuItem.getItemId() == R.id.menu_folders) {
FragmentTransaction fragmentTransactionFolders = mFragmentManager.beginTransaction();
fragmentTransactionFolders.replace(R.id.frame_layout, new FoldersFragment()).commit();
}
if(menuItem.getItemId() == R.id.menu_trash) {
FragmentTransaction fragmentTransactionTrash = mFragmentManager.beginTransaction();
fragmentTransactionTrash.replace(R.id.frame_layout, new TrashFragment()).commit();
}
if(menuItem.getItemId() == R.id.menu_settings) {
FragmentTransaction fragmentTransactionSettings = mFragmentManager.beginTransaction();
fragmentTransactionSettings.replace(R.id.frame_layout, new SettingsFragment()).commit();
}
if(menuItem.getItemId() == R.id.menu_info) {
FragmentTransaction fragmentTransactionInfo = mFragmentManager.beginTransaction();
fragmentTransactionInfo.replace(R.id.frame_layout, new InfoFragment()).commit();
}
return false;
}
});
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
ActionBarDrawerToggle mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, toolbar, R.string.app_name, R.string.app_name);
mDrawerLayout.setDrawerListener(mDrawerToggle);
mDrawerToggle.syncState();
}
}
The above code is a slightly modified version of the one found here, written by Ratan:
https://androidbelieve.com/navigation-drawer-with-swipe-tabs-using-design-support-library/

DrawerLayout is a special FrameLayout that supports navigation drawer.
The child view that doesn't have a layout_gravity is the main view. The child view that has a layout_gravity e.g. android:layout_gravity="start" is the nav drawer.
This means that DrawerLayout should be the top level view group. In other words, put your layout with the Toolbar inside the DrawerLayout.

Related

Navigation menu and add button on selective fragments in android

I need your help to understand the concept of menu in android.
I am using a navigation menu(bar) in android and load it on the MainActivity and put three different fragments.
On app start the navigation menu opened and default fragment also loaded as mentioned below.
Here everything is ok, but when i click on the third menu option (Credit Cards) then a fragment opened in that fragment, i am using ListView as mentioned below:
Now i want the add button on the bar, here you can see its below the bar.
How i can achive this? please help me out. Here i want the burger icon for navigation at left side and add icon/button at right side on same bar.
Note: I tried to add the button on the toolbar i am using inside the DrawerLayout but this button appears on all the fragments.
Here is the code for activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.ac 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:context=".MainActivity"
android:id="#+id/drawer_layout"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorPrimary"
android:id="#+id/toolbar"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
>
</android.support.v7.widget.Toolbar>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/fragement_container"/>
</LinearLayout>
<android.support.design.widget.NavigationView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:id="#+id/nav_view"
app:headerLayout="#layout/nav_header"
app:menu="#menu/drawer_menu" >
</android.support.design.widget.NavigationView>
</android.support.v4.widget.ac>
MainActivity.java
package com.mas.mas;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout drawerLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
drawerLayout = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
ActionBarDrawerToggle drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.nagivation_drawer_open, R.string.nagivation_drawer_close);
drawerLayout.addDrawerListener(drawerToggle);
drawerToggle.syncState();
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction().replace(R.id.fragement_container, new TransactionsListFragment()).commit();
setTitle("Transactions");
navigationView.setCheckedItem(R.id.transactions);
}
}
#Override
public void onBackPressed() {
if (drawerLayout.isDrawerOpen(GravityCompat.START)) {
drawerLayout.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.transactions:
getSupportFragmentManager().beginTransaction().replace(R.id.fragement_container, new TransactionsListFragment()).commit();
setTitle("Email");
break;
case R.id.banks:
// getSupportFragmentManager().beginTransaction().replace(R.id.fragement_container, new MessageFragement()).commit();
setTitle("Banks");
break;
case R.id.cards:
setTitle("Cards");
getSupportFragmentManager().beginTransaction().replace(R.id.fragement_container, new CardsFragment()).commit();
break;
}
drawerLayout.closeDrawer(GravityCompat.START);
return true;
}
}
Thanks.
Add button in tool bar in mainActivity
<androidx.appcompat.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">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/adimage"
android:layout_marginBottom="#dimen/padd_10"
android:layout_marginTop="#dimen/padd_10"
android:layout_alignParentRight="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ad"></ImageView>
</RelativeLayout>
then use this for onClick Listner In mainActivity.java
Toolbar toolbar = findViewById(R.id.toolbar);
adsImageView=toolbar.findViewById(R.id.adimage);
adsImageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
hope it helps

Action Bar is not visible?

In my android application,I am having a drawer but in order to get the drawer i have to manually click and drag that drawer. How can i add the symbol to my tool bar? ( by clicking that i want to handle my drawer ) Also how can i make that toolbar visible in the all other layouts as well?
Here is my 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:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/drawer"
tools:context=".drawer">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:minHeight="?android:attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar" />
<android.support.design.widget.NavigationView
app:headerLayout="#layout/header_drawer"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#color/colorPrimary"
app:itemTextColor="#color/grey"
app:itemIconTint="#color/grey"
app:menu="#menu/menudrawer"
android:layout_gravity="start">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
here is my drawer.java
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
public class drawer extends AppCompatActivity {
private DrawerLayout mDrawer;
private ActionBarDrawerToggle mToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drawer);
mDrawer = (DrawerLayout) findViewById(R.id.drawer);
mToggle = new ActionBarDrawerToggle(this,mDrawer,R.string.Open,R.string.Close);
mDrawer.addDrawerListener(mToggle);
mToggle.syncState();
Toolbar toolbar = findViewById(R.id.toolbar);
if (getSupportActionBar()!=null){
setSupportActionBar(toolbar);
}
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mToggle.onOptionsItemSelected(item))
{
return true;
}
return super.onOptionsItemSelected(item);
}
}
Try with this version of action bar drawer toggle
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
For the question about toolbar, you need to change this:
if (getSupportActionBar()!=null){
setSupportActionBar(toolbar);
}
to just this:
setSupportActionBar(toolbar);
and it should work.
About propagating this behavior on the other screens - you either need to:
Add the toolbar and drawer everywhere
or
Have this as a base layout in base activity
and inherit from base activity, adding proper layouts on children
Use below code it helping you according to your need :
ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.str_drawer_o, R.string.str_drawer_clos)
if (getSupportActionBar()!=null)
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
Drawable drawable = ResourcesCompat.getDrawable(getResources(), R.drawable.ic_nav_icon, this.getTheme());
actionBarDrawerToggle.setHomeAsUpIndicator(drawable);
drawerLayout.addDrawerListener(actionBarDrawerToggle);
actionBarDrawerToggle.setToolbarNavigationClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (drawerLayout.isDrawerOpen(GravityCompat.START)) {
drawerLayout.closeDrawer(GravityCompat.START);
} else {
drawerLayout.openDrawer(GravityCompat.START);
}
}
});
actionBarDrawerToggle.syncState();

How can I implement my custom toolbar in my Fragment

I read so much article and watched so many videos but I still don't know, how to set up an action bar in an Fragment. I have a activity X with an custom toolbar and one navigation view on the top left(the toolbar is separated in an xml file), I import it in the xml for the activity X.
Here is my toolbar in one single 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/drawerChooser"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/new_gradients"
android:fitsSystemWindows="true"
tools:context=".ChoosingActivity">
<!--tools:openDrawer="start"-->
<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="?attr/actionBarSize"
android:background="#color/colorPrimary"
android:elevation="4dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</LinearLayout>
<FrameLayout
android:id="#+id/fragment_container_toolbar"
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"
app:headerLayout="#layout/header"
app:menu="#menu/drawer_menu">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
EDIT, new toolbar:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:tools="http://schemas.android.com/tools"
android:background="#drawable/new_gradients"
android:orientation="vertical">
<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="?attr/actionBarSize"
android:background="#color/colorPrimary"
android:elevation="4dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/new_gradients"
android:fitsSystemWindows="true"
tools:context=".ChoosingActivity">
<FrameLayout
android:id="#+id/fragment_container_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v4.widget.DrawerLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="#layout/header"
app:menu="#menu/drawer_menu">
</android.support.design.widget.NavigationView>
</LinearLayout>
</LinearLayout>
Here is my activity X:
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
public class ChoosingActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout drawer;
public void userChoosed(View view) {
Intent choosedIntent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(choosedIntent);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_choosing);
Toolbar toolbar = findViewById(R.id.toolbarxml);
setSupportActionBar(toolbar);
drawer = findViewById(R.id.drawerChooser);
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 boolean onNavigationItemSelected(#NonNull MenuItem item) {
// Item will be Selected
switch (item.getItemId()) {
case R.id.nav_meetings:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new Ausstehende_Treffen_Fragment()).commit();
break;
case R.id.nav_finished_meetings:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new Abgeschlossene_Treffen_Fragment()).commit();
break;
case R.id.nav_rate:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new Treffen_Bewerten_Fragment()).commit();
break;
case R.id.nav_edit_profile:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new Profil_Bearbeiten_Fragment()).commit();
break;
case R.id.nav_settings:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new Einstellungen_Fragment()).commit();
break;
}
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
}
EDIT, new activity X ( look at my comment "Toolbar_chooser or toolbar"):
public class ChoosingActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout drawer;
public void userChoosed(View view) {
Intent choosedIntent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(choosedIntent);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_choosing);
Toolbar toolbar = findViewById(R.id.toolbar_chooser); // Toolbar_chooser or toolbar?
setSupportActionBar(toolbar);
drawer = findViewById(R.id.drawerChooser);
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 boolean onNavigationItemSelected(#NonNull MenuItem item) {
// Item will be Selected
switch (item.getItemId()) {
case R.id.nav_meetings:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container_toolbar, new Ausstehende_Treffen_Fragment()).commit();
break;
case R.id.nav_finished_meetings:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container_toolbar, new Abgeschlossene_Treffen_Fragment()).commit();
break;
case R.id.nav_rate:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container_toolbar, new Treffen_Bewerten_Fragment()).commit();
break;
case R.id.nav_edit_profile:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container_toolbar, new Profil_Bearbeiten_Fragment()).commit();
break;
case R.id.nav_settings:
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container_toolbar, new Einstellungen_Fragment()).commit();
break;
}
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
}
And here my Fragment where I want to add the toolbar with the navigation view:
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.design.widget.NavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
public class Ausstehende_Treffen_Fragment extends Fragment {
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_ausstehende_treffen,container,false);
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);
((AppCompatActivity)getActivity()).getSupportActionBar(toolbar); // HOW???
}
}
EDIT, new Fragment:
public class Ausstehende_Treffen_Fragment extends Fragment {
// Toolbar toolbar = (Toolbar) getActivity().findViewById(R.id.toolbarreal);
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_ausstehende_treffen,container,false);
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
Toolbar toolbar = ((ChoosingActivity)getActivity()).findViewById(R.id.toolbar_ausstehende_treffen);
}
}
Here is also my xml for the fragment, where I want to have the toolbar:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_orange_light">
<include
android:id="#+id/toolbar_ausstehende_treffen"
layout= "#layout/toolbar"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Ausstehende Treffen Fragment"
android:textSize="25sp"
android:layout_centerInParent="true"/>
</RelativeLayout>
Im not able anymore to open my navigation bar in my choosing activity and I don't know why..
I include the toolbars manually in the xml files, its necessary right? + some code in the fragment itself. Man I hope you understand my code and my problems. Pls help me I just want to keep my custom toolbar in any fragment and activity.
Pls help me, its so frustrating, waste so many hours for just a toolbar, which already exists..
Try adding toolbar in you activity :
mTopToolbar = (Toolbar) findViewById(R.id.my_toolbar);
setSupportActionBar(mTopToolbar);
Get the Activity that owns the fragment (Fragment.getActivity()) and set its ActionBar property.
Then juse use the same setDisplayHomeAsUpEnabled method you mentioned to begin with on the ActionBar after setting your toolbar as the ActionBar to get the back / up button.
sample to access it from fragment :
((AppCompatActivity)getActivity()).getSupportActionBar().setSubtitle();
Hope it helps.
As simple as this.
Toolbar toolbar = ((ChoosingActivity)getActivity()).findViewById(R.id.toolbar);
Now do whatever you want to do man ;).
It's probably because your Toolbar is covered by everything else in DrawerLayout. Try swapping LinearLayout and DrawerLayout, so that the vertical LinearLayout is your root layout, something like this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorPrimary"
android:elevation="4dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawerChooser"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/new_gradients"
android:fitsSystemWindows="true"
tools:context=".ChoosingActivity">
<FrameLayout
android:id="#+id/fragment_container_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v4.widget.DrawerLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="#layout/header"
app:menu="#menu/drawer_menu">
</android.support.design.widget.NavigationView>
</LinearLayout>
Something approximately like that, the key is that your Toolbar has to be outside your DrawerLayout.

Adding FragmentTabHost from inside a Fragment created by an activity with NavigationDrawer

What I have been Trying to Do
What I have been aiming to do for several days is, using an Activity that implements NavigationView.OnNavigationItemSelectedListener. I want this to create two Tabs inside a android.support.v4.app.Fragment in the FrameLayout provided by the template for the Navigation Drawer on Android Studio 1.5.1.
- My Current Activity uses a toolbar not an ActionBar.
- I was hoping to use a ViewPager; hence needing to use Support Fragments.
- I have followed several code examples online and have looked at Android Developers Reference.
Other Linked Posts:
Unable to add Tabs inside Fragment of Navigation Drawer Android | This uses Fragments and the ActionBar
Android TabHost inside Fragment | Chosen Answer -> using FragmentActivity | Unfortunatly uses a new FragmentActivity but I need to keep my NavigationDrawer so am using one activity
Android TabHost only inside one Fragment (NavigationDrawer) | This didnt really provide me much help as I am very new to using tabs
Android Adding Tab inside Fragment | Chosen Answer -> using FragmentTabHost | I have taken FragmentTabHost XML and Java code from this example but It has not worked
Tabs in a class that extends fragment | The andswer refers to googles documentation which is not working for me.
Adding Tab inside Fragment In Android? | Uses android.app.Fragment and the suggested answer didnt work.
Using TabLayout inside a Fragment; tab text invisible | I am using Design Library v23.1.1 | Bugs reported in v22.2.1. The code here gave me no tabs either
Any Suggestion would be appreciated.
MY CODE
NavActivity Class
import android.support.design.widget.NavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
public class NavigationMenuActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
Toolbar toolbar;
DrawerLayout drawerLayout;
ActionBarDrawerToggle toggle;
NavigationView navigationView;
FragmentManager fragmentManager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.navmenu_act);
//Setting up the Toolbar
toolbar = (Toolbar) findViewById(R.id.navmenu_appbar_tbar);
setSupportActionBar(toolbar);
//Set up the action bar toggle
drawerLayout = (DrawerLayout) findViewById(R.id.navmenu_act_drawerlay);
toggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar,
R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawerLayout.setDrawerListener(toggle);
toggle.syncState();
//Set up the navigation View
navigationView = (NavigationView) findViewById(R.id.navmenu_nav_view);
navigationView.setNavigationItemSelectedListener(this);
//SET THE FRAGMENT
fragmentManager = getSupportFragmentManager();
Fragment fragment = fragmentManager.findFragmentById(R.id.navmenu_appbar_fl);
if(fragment==null) { //If no fragment exists relate the fragment
fragment = new TabLayoutFragmentExample();
fragmentManager.beginTransaction()
.add(R.id.navmenu_appbar_fl, fragment)
.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
.commit();
}
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.navmenu_act_drawerlay);
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();
if (id == R.id.nav_profile) {
fragmentManager = getSupportFragmentManager();
Fragment fragment = fragmentManager.findFragmentById(R.id.navmenu_appbar_fl);
if(fragment!=null) { //If a fragment exists replace the fragment
fragment = new TestFragmentNoTabs();
fragmentManager.beginTransaction()
.replace(R.id.navmenu_appbar_fl, fragment)
.commit();
}
} else if (id == R.id.nav_near_me) {
// Handle the near me action here
} else if (id == R.id.nav_proximity) {
// Handle the proximity action
fragmentManager = getSupportFragmentManager();
Fragment fragment = fragmentManager.findFragmentById(R.id.navmenu_appbar_fl);
if(fragment!=null) {//If A fragment exists replace the fragment
fragment = new TestFragmentNoTabsTWO();
fragmentManager.beginTransaction()
.replace(R.id.navmenu_appbar_fl, fragment)
.commit();
}
}
//Close the drawerLayout after it is clicked?
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.navmenu_act_drawerlay);
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
//sync the toggle
toggle.syncState();
}
}
navmenu_appbar.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=".NavigationMenuActivity">
<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/navmenu_appbar_tbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="#style/JethrosTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/navmenu_appbar_fl"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
</android.support.design.widget.CoordinatorLayout>
TablayoutFragmentExample Class
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
public class TabLayoutFragmentExample extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View inflatedView = inflater.inflate(R.layout.tab_layout_frag, container, false);
TabLayout tabLayout = (TabLayout) inflatedView.findViewById(R.id.tab_layout_frag_tl);
tabLayout.addTab(tabLayout.newTab().setText("Tab1"));
tabLayout.addTab(tabLayout.newTab().setText("Tab2"));
final ViewPager viewPager = (ViewPager) inflatedView.findViewById(R.id.tab_layout_frag_vp);
viewPager.setAdapter(new PagerAdapter //ChildFragManager; Tnx #Luksprog
(getChildFragmentManager(), tabLayout.getTabCount()));
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setupWithViewPager(viewPager); //Set Viewpager; Tnx #Luksprog
return inflatedView;
}
public class PagerAdapter extends FragmentStatePagerAdapter {
int mNumOfTabs;
public PagerAdapter(FragmentManager fm, int NumOfTabs) {
super(fm);
this.mNumOfTabs = NumOfTabs;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
TestFragmentNoTabs tab1 = new TestFragmentNoTabs();
return tab1;
case 1:
TestFragmentNoTabsTWO tab2 = new TestFragmentNoTabsTWO();
return tab2;
default:
return null;
}
}
#Override
public int getCount() {
return mNumOfTabs;
}
}
}
tab_layout_frag.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.AppBarLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout_frag_tl"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app:tabGravity="fill"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="#+id/tab_layout_frag_vp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/white"/>
</android.support.design.widget.AppBarLayout>
TestFragmentNoTabs & TestFragmentNoTabsTWO (Fragment 1 and fragment 2)
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
public class TestFragmentNoTabs extends Fragment {
public final String TAG = "TestFragmentNoTabs";
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
//Inflate the fragment view
View view = inflater.inflate(R.layout.testfragnotabs, container, false);
return view; //Return the view to the activity
}
#Override
public void onPause() {
super.onPause();
}
}
testfragnotabs.xml (similar to testfragnotabstwo.xml)
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/nearme_frag_rlay"
android:clickable="false">
<TextView
android:id="#+id/nearme_frag_tv_seclab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" TestFragmentNoTabsOne -> testfragnotabs.xml" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:id="#+id/textView1"
android:layout_above="#+id/nearme_frag_tv_seclab" />
</RelativeLayout>
Current Situation with Above Code
The project builds fine and the navigation drawer is working fine as well. However the frame layout where the fragment and the TabLayout should appear is empty with a white background (Just like the Design preview in tab_layout_frag.xml; this could mean there is a problem with the ViewPager or the TabLayout?).

fragment to activity Backstack returns blank view

I had Created a Home activity which includes Tablayout and Navigation Drawer onclick with fragment. I had included fragmentTransaction.addToBackStack(null).commit(); with the fragment transaction code to go back to previous Activity.
My Desired requirement was From Activity with tablayout-->NavigationDrawer-->Fragment1--> On BackButtonPress-->MainActivity with tablayout.
But,Now i am able to move to Fragment1,and when return to MainActivity,the view becomes filled with white(if i use mainLayout.removeAllViews(); and if wont use mainLayout.removeAllViews(); ,then the fragment is overlapping with the MainActivity)
1.My mainactivty
2.fragment
3.when i return to mainactivty
Now i cant see tablayout in my MainActivity.
Can anyone please help me.
mainactivity_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".HomeActivity"
android:id="#+id/mainlayout"
tools:showIn="#layout/app_bar_home">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rel">
<RelativeLayout
android:id="#+id/main_layout1"
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=".MainActivity">
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="#+id/pager1"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_below="#id/tab_layout1"/>
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>
MainActivity.java
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.design.widget.TabLayout;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.GravityCompat;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.RelativeLayout;
import java.io.File;
import java.util.ArrayList;
public class HomeActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
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);
TabLayout tabLayout1 = (TabLayout) findViewById(R.id.tab_layout1);
tabLayout1.addTab(tabLayout1.newTab().setIcon(R.drawable.tab_ic_home));
tabLayout1.addTab(tabLayout1.newTab().setIcon(R.drawable.tab_ic_map));
tabLayout1.addTab(tabLayout1.newTab().setIcon(R.drawable.tab_ic_login));
tabLayout1.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager1 = (ViewPager) findViewById(R.id.pager1);
final PagerAdapter1 adapter = new PagerAdapter1
(getSupportFragmentManager(), tabLayout1.getTabCount());
viewPager1.setAdapter(adapter);
viewPager1.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout1));
tabLayout1.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager1.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
#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) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
// Handle navigation view item clicks here.
int id = item.getItemId();
RelativeLayout mainLayout=(RelativeLayout)findViewById(R.id.main_content);
if (id == R.id.nav_login) {
LoginFragment fragment = new LoginFragment();
// mainLayout.removeAllViews();
fragmentTransaction.replace(R.id.mainlayout, fragment);
fragmentTransaction.addToBackStack(null).commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
Fragment.java
import android.annotation.SuppressLint;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class ContactFragment extends Fragment implements OnMapReadyCallback {
private GoogleMap mMap;
Button call;
public ContactFragment() {
// Required empty public constructor
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.activity_contact,container,false);
call = (Button) v.findViewById(R.id.button5);
call.setOnClickListener(new View.OnClickListener() {
#SuppressLint("NewApi")
#Override
public void onClick(View v) {
Intent i = new Intent(Intent.ACTION_DIAL);
i.setData(Uri.parse("tel:7034409615"));
startActivity(i);
}
});
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getChildFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
return v;
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(9.2700, 76.7800);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Pathanamthitta"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
}
As I suggested in the comments, in order to figure out the problem with displaying of fragments you can try to view what kind of fragments are being added into back stack as follows
Log.d("FragmentList",getSupportFragmentManager().getFragments().toString();
You can put it inside onBackPressed() ,onNavigationItemSelected()
According to your feedback it was helpful for you and you figured out the problem.
Also there are some layout design issues:
Your current approach is to adding fragment into relative layout. I believe it leads to some problems with view. The recommended approach is to add fragments into FrameLayout as described in docs
Also you may want to move everything outside view used for fragments
I have rewritten your layout following recommended guidelines in the docs. P.S I haven't tested how it displayed.. you may have to tweak some layout params.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--
Layout for fragments
-->
<FrameLayout
android:id="#+id/mainlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/app_bar_home">
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rel">
<RelativeLayout
android:id="#+id/main_layout1"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar" android:orientation="horizontal"/>
<android.support.v4.view.ViewPager
android:id="#+id/pager1"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_below="#id/tab_layout1"/>
</RelativeLayout>
</RelativeLayout>
</LinearLayout>
Also You defined multiple activities in your layout like tools:context=".MainActivity" and tools:context=".HomeActivity" I guess it's just unedited copy paste, but may lead some issues as well.
Hope you find it useful :)
In your MainActivity.java add this:
protected OnBackPressedListener onBackPressedListener;
public interface OnBackPressedListener {
void doBack();
}
public void setOnBackPressedListener(OnBackPressedListener onBackPressedListener) {
this.onBackPressedListener = onBackPressedListener;
}
#Override
public void onBackPressed() {
if (onBackPressedListener != null)
onBackPressedListener.doBack();
else
super.onBackPressed();
}
Than in Fragment.java implements class like this:
implements MainActivity.OnBackPressedListener
And implements method:
#Override
public void doBack() {
Intent yourMainActivity = new Intent(getActivity(), MainActivity.class);
startActivity(yourMainActivity);
}
Rubin Nellikunnathu. I had the same issue. Make replacing of your NavigationView fragments in FrameLayout, not RelativeLayout. So you always would have TabLayout and ViewPager loaded.
Place it in mainactivity_layout.xml or in app_bar_home.xml (I do not see your full code, so you try these combinations).
mainactivity_layout.xml
<RelativeLayout 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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".HomeActivity"
android:id="#+id/mainlayout"
tools:showIn="#layout/app_bar_home">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rel">
<RelativeLayout
android:id="#+id/main_layout1"
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=".MainActivity">
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="#+id/pager1"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_below="#id/tab_layout1"/>
</RelativeLayout>
</RelativeLayout>
// Replace NavigationView fragments in this FrameLayout
<FrameLayout
android:id="#+id/flForReplace"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".FrameLayout" />
</RelativeLayout>
and your code should be
fragmentTransaction.replace(R.id.flForReplace, fragment);
also replace fragmentTransaction.addToBackStack(null).commit(); with fragmentTransaction.commit(); as ρяσѕρєя K suggested.

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