Why this tab layout doesn't stay in the bottom?

Why this tab layout doesn't stay in the bottom? - android

I've created my application with Navigation Drawer. In my Activity I put this code:
public class MenuActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener
{
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu);
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)
{
public void onDrawerOpened(View view)
{
super.onDrawerOpened(view);
}
public void onDrawerClosed(View v)
{
super.onDrawerClosed(v);
}
};
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
onNavigationItemSelected(navigationView.getMenu().getItem(0));
navigationView.setNavigationItemSelectedListener(this);
}
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item)
{
int id = item.getItemId();
if (id == R.id.action_settings)
{
return true;
}
return super.onOptionsItemSelected(item);
}
public boolean onNavigationItemSelected(MenuItem item) {
Fragment fragment = null;
String title = null;
int id = item.getItemId();
Class fragmentClass=null;
if (id == R.id.Home)
{
fragmentClass = HomeFragment.class;
title="Home";
}
else if (id == R.id.Profile)
{
fragmentClass= ProfileFragment.class;
title="Profile";
}
try {
fragment = (Fragment) fragmentClass.newInstance();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
if (getSupportActionBar() != null)
{
getSupportActionBar().setTitle(title);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
now in the HomeFragment I want to put a tab in the bottom of the screen. So i put this code:
public class HomeFragment extends Fragment {
public static TabLayout tabLayout;
public static ViewPager viewPager;
public static int int_items = 3 ;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View inflatedView = inflater.inflate(R.layout.fragment_home, null);
tabLayout = (TabLayout) inflatedView.findViewById(R.id.tabs);
viewPager = (ViewPager) inflatedView.findViewById(R.id.viewpager);
viewPager.setAdapter(new MyAdapter(getChildFragmentManager()));
tabLayout.post(new Runnable() {
#Override
public void run() {
tabLayout.setupWithViewPager(viewPager);
}
});
return inflatedView;
}
class MyAdapter extends FragmentPagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
/**
* Return fragment with respect to Position .
*/
#Override
public Fragment getItem(int position)
{
switch (position){
case 0 : return new SearchFragment();
case 1 : return new CardFragment();
case 2 : return new MapFragment();
}
return null;
}
public int getCount() {
return int_items;
}
This is fragment_home.xml:
<FrameLayout 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"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".HomeFragment">
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
app:tabGravity="fill"
app:tabMode="fixed"
android:background="#color/material_blue_grey_800"
app:tabIndicatorColor="#color/black_overlay"
app:tabSelectedTextColor="#000"
app:tabTextColor="#FFFFFF"
android:layout_gravity="bottom"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true">
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/tabs">
</android.support.v4.view.ViewPager>
</RelativeLayout>
</FrameLayout>
and this the activity 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_menu"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<FrameLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/containerView">
</FrameLayout>
<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_menu"
app:menu="#menu/activity_menu_drawer" />
</android.support.v4.widget.DrawerLayout>
But finally I get this result:
How could I put this tabLayout in the toolbar?

You don't need to take frame layout for fragment_home as root layout. Simplify your xml file as:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
app:tabGravity="fill"
app:tabMode="fixed"
android:background="#color/material_blue_grey_800"
app:tabIndicatorColor="#color/black_overlay"
app:tabSelectedTextColor="#000"
app:tabTextColor="#FFFFFF"
android:layout_gravity="bottom"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true">
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/tabs">
</android.support.v4.view.ViewPager>
</RelativeLayout>

Related

Issue with Fragment Navigation. Click on my second Fragment, It still shows me my first fragment tabs

I'm trying a fragment navigation drawer, Everything works out fine, but the issue is that I don't want to have a fragment fab on my second fragment.
I really appreciate the help given. Thank you!
I will leave an image of the outcome, So it might be easier to see what I mean
https://imgur.com/a/9U4aGDF
Homepage.java
public class Homepage extends AppCompatActivity implements
NavigationView.OnNavigationItemSelectedListener {
private static final String TAG = "Homepage";
private SectionsPageAdapter mSectionsPageAdapter;
private ViewPager mViewPager;
private DrawerLayout drawer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_homepage);
mSectionsPageAdapter = new
SectionsPageAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.viewpagers);
setupViewPager(mViewPager);
Log.i("viewpager",mViewPager.toString());
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);
Toolbar toolbar = findViewById(R.id.toolbar);
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();
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
new HomeFragment()).commit();
navigationview.setCheckedItem(R.id.nav_home);
}
}
private void setupViewPager(ViewPager viewPager) {
SectionsPageAdapter adapter = new SectionsPageAdapter(getSupportFragmentManager());
adapter.addFragment(new FragmentPopular(), "Popular");
adapter.addFragment(new FragmentUpcoming(), "Upcoming");
Log.i("adaptaerrrrr",adapter.toString());
viewPager.setAdapter(adapter);
}
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem menuItem) {
Fragment fragment = null;
switch (menuItem.getItemId()) {
case R.id.nav_home:
fragment = new HomeFragment();
break;
case R.id.nav_profile:
fragment = new ProfileFragment();
break;
case R.id.nav_discussion:
fragment = new DiscussionFragment();
break;
}
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, fragment).commit();
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
}
super.onBackPressed();
}
}
SectionsPageAdapter.java
public class SectionsPageAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public void addFragment(Fragment fm, String title) {
mFragmentList.add(fm);
mFragmentTitleList.add(title);
}
public SectionsPageAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Popular Games";
case 1 :
return "Upcoming Games";
}
return null;
}
#Override
public int getCount() {
return mFragmentList.size();
}
}
activity_homepage.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_layout"
android:fitsSystemWindows="true"
tools:context=".Activities.Homepage"
android:background="#000000"
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/common_google_signin_btn_text_dark_focused"
android:id="#+id/toolbar"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Dark"
android:elevation="4dp"/>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpagers"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</FrameLayout>
</LinearLayout>
<android.support.design.widget.NavigationView
android:layout_width="wrap_content"
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.v4.widget.DrawerLayout>
profileFragment.java
public class ProfileFragment extends Fragment {
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable
ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_profile, container, false);
}
}
fragment_profile.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FFF"
android:clickable="true">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text ="Profile Fragment"
android:textSize="30sp"
android:layout_centerInParent="true"/>
</RelativeLayout>

getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,fragment).commit();
paste this code before break statement in onNavigationItemSelectedMethod.
you have to attach the fragment to activity.

When I am adding fragment to my view pager (in nested scroll view), I can not exit from application with device back button

This is my activity_main code:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:layoutDirection="rtl"
tools:context=".MainActivity"
tools:openDrawer="start">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:paddingTop="#dimen/appbar_padding_top"
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"
android:layoutDirection="rtl"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay"
app:title="#string/app_name">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layoutDirection="rtl" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<com.duolingo.open.rtlviewpager.RtlViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layoutDirection="rtl"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layoutDirection="rtl"
app:headerLayout="#layout/drawer_header"
app:menu="#menu/menu_drawer" />
</android.support.v4.widget.DrawerLayout>
I want to add some fragments to ViewPager in NestedScrollView.
Without adding fragments to ViewPager everything is ok and I can exit from app by device back button, but when I am adding fragment(s) to ViewPager I can not exit from app by pressing device back button.(Back button is working and for example can close soft keyboard)
this is my fragment code:
(empty fragment!)
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable
ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_jadvalyab,container,false);
}
and this is my adapter:
public class MyFragmentPagerAdapter extends FragmentPagerAdapter {
private ArrayList<Fragment> fragmentsList = new ArrayList<>();
private ArrayList<String> fragsTitleList = new ArrayList<>();
public MyFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
public void addFragment(Fragment fragment,String title){
fragmentsList.add(fragment);
fragsTitleList.add(title);
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return fragsTitleList.get(position);
}
#Override
public Fragment getItem(int position) {
return fragmentsList.get(position);
}
#Override
public int getCount() {
return fragmentsList.size();
}
}
Does anyone have an idea to solving this problem?
Thanks.
Edit:
Problem solved by removing NestedScrollingView from coordinator layout in activity_main and putting that in fragment layout (inside viewpager).
But still I don't know why device back button did not worked in former state.

I think the problem is occurring because you have used a third party library for ViewPager.
Just copy and paste the following code in the place of your "activity_main.xml" file.
<?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">
<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"
tools:context=".Main2Activity">
<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.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main2" />
<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"
app:srcCompat="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
<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/drawer_header"
app:menu="#menu/menu_drawer" />
</android.support.v4.widget.DrawerLayout>
I have initialized fragment to ViewPager like this
ViewPager viewPager2 = findViewById(R.id.viewpager);
MyFragmentPagerAdapter pagerAdapter2 = new MyFragmentPagerAdapter(getSupportFragmentManager());
pagerAdapter2.addFragment(TestFragment.createInstance(),"Home");
viewPager2.setAdapter(pagerAdapter2);
TabLayout tabLayout2 = findViewById(R.id.tabs);
tabLayout2.setupWithViewPager(viewPager2);
Here is the Testfragment.java class
public class TestFragment extends Fragment {
public static TestFragment createInstance() {
TestFragment profileFragment = new TestFragment();
return profileFragment;
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_jadvalyab, container, false);
return rootView;
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
}
}
And the full code of "Main2Activity.java" class is here
public class Main2Activity 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);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
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);
initViewPager();
}
private void initViewPager() {
ViewPager viewPager2 = findViewById(R.id.viewpager);
MyFragmentPagerAdapter pagerAdapter2 = new MyFragmentPagerAdapter(getSupportFragmentManager());
pagerAdapter2.addFragment(TestFragment.createInstance(),"Home");
viewPager2.setAdapter(pagerAdapter2);
TabLayout tabLayout2 = findViewById(R.id.tabs);
tabLayout2.setupWithViewPager(viewPager2);
}
#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.main2, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} 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;
}
}
Edit:
Code of "content_main2.xml"
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView 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:fillViewport="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.v4.widget.NestedScrollView>
Code for "fragment_jadvalyab.xml" is in te following
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Best Wishes"
android:gravity="center"/>
</LinearLayout>

Try this
#Override
public void onBackPressed() {
//Your Action
}

Override onBackPress(){} event in your MainActivity which holds your above xml layout.
#Override
public void onBackPressed() {
finish();
}

override OnBackPressed() method , or you can write your adapter as this.
public class Adapter extends FragmentStatePagerAdapter {
public Adapter (FragmentManager fm) {
super(fm);
}
// you can add fragments according to your requirement
#Override
public Fragment getItem(int position) {
Fragment fragment= null;
switch (position){
case 0:
fragment= new fragmentDay();
break;
case 1:
fragment= new fragmentWeek();
break;
case 2:
fragment= new fragmentMonth();
break;
}
return fragment;
}
#Override
public int getCount() {
return 3;
}
}
and inside activity pass fragment manager to adapter constructor.
fragmentManager= getSupportFragmentManager();
adapter= new Adapter(fragmentManager);
viewPager.setAdapter(adapter);
I have used tablayout with viewpager
tabLayout.setupWithViewPager(viewPager);
tabLayout.setTabsFromPagerAdapter(adapter);
tabLayout.getTabAt(0).setText("Day");
tabLayout.getTabAt(1).setText("Week");
tabLayout.getTabAt(2).setText("Month");
tabLayout.getTabAt(1).select();
tabLayout.setSelectedTabIndicatorColor(Color.WHITE);

android fragment does not show in view pager

I have an application. I use in Main activity tab layout with view pager. I tried to load a fragment in every 3 tab in my view pager.but my fragment does not show in view pager.I did it before several times but now it does not work!!
I dont know where is my mistake.
mainactivity.java:
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
ImageView hamgerMenu;
DrawerLayout drawer;
TabLayout tabLayout;
ViewPager viewPager;
ViewPagerAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
setupviews();
}
private void setupviews() {
drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
tabLayout = (TabLayout) findViewById(R.id.tabLayout);
viewPager = (ViewPager) findViewById(R.id.viewPager);
adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragments(new FragmentFriends(), "فعالیت ها");
adapter.addFragments(new FragmentFriends(), "فعالیت ها");
adapter.addFragments(new FragmentFriends(), "فعالیت ها");
adapter.addFragments(new FragmentFriends(), "فعالیت ها");
viewPager.setAdapter(adapter);
viewPager.setCurrentItem(2);
tabLayout.setupWithViewPager(viewPager);
hamgerMenu = (ImageView) findViewById(R.id.img_mainactivity_hambermenu);
hamgerMenu.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
drawer.openDrawer(Gravity.RIGHT);
}
});
}
#Override
public void onBackPressed() {
if (drawer.isDrawerOpen(Gravity.RIGHT)) {
drawer.closeDrawer(Gravity.RIGHT);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(Gravity.RIGHT);
return true;
}
}
viewpagerAdapter:
public class ViewPagerAdapter extends FragmentPagerAdapter {
ArrayList<Fragment> fragments;
ArrayList<String> titles;
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
fragments=new ArrayList<>();
titles=new ArrayList<>();
}
#Override
public Fragment getItem(int position) {
return fragments.get(position);
}
#Override
public int getCount() {
return fragments.size();
}
public void addFragments(Fragment fragment,String title){
fragments.add(fragment);
titles.add(title);
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return titles.get(position);
}
}
fragment:
public class FragmentFriends extends Fragment {
View view;
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
inflater.inflate(R.layout.friends_fragment,container,false);
return view;
}
}
mainactivity.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:layoutDirection="rtl"
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:layoutDirection="rtl"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="right"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
appbarmain.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:layoutDirection="rtl"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layoutDirection="rtl"
android:elevation="0dp"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<RelativeLayout
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:layoutDirection="rtl">
<ImageView
android:id="#+id/img_mainactivity_hambermenu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="8dp"
android:src="#drawable/ic_hambermenu" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="#string/app_name"
android:textColor="#color/white"
android:textSize="18dp" />
</RelativeLayout>
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:background="#color/colorPrimary"
app:tabIndicatorColor="#color/white"
app:tabSelectedTextColor="#color/colorAccent"
app:tabTextColor="#color/white"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</android.support.design.widget.AppBarLayout>
<include 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"
app:srcCompat="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
contentmain.xml:
<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:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".MainActivity"
tools:showIn="#layout/app_bar_main">
<android.support.v4.view.ViewPager
android:layoutDirection="ltr"
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>

just make this change it will work
view = inflater.inflate(R.layout.friends_fragment,container,false);

How to create a Fragment over the Viewpager in android?

Explanation:
I tried more but i failed to find the how to set the transparent fragment over the Viewpager. I am working in application. The requirement of my client is who will make a application like below url
https://play.google.com/store/search?q=munchery&hl=en
In above url application. In this application they were added more functionality like navigationDrawer, Tabs with viewpager and etc.
One thing is when i click on the actionBar Today's menu it's open something. I am not able to recognized to find what it actually open while i click on actionBar in the Munchery application.
I tried to implement but not implemented as same as the munchery application.
activity_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="com.millu.whatsappdemo.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" >
<TextView
android:id="#+id/action_text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:layout_marginLeft="25dp"
android:layout_marginRight="25dp"
android:textSize="20sp"
android:clickable="true"
android:textColor="#FFFFFF"
android:text="Text view"
android:drawableRight="#drawable/ic_up_arrow">
</TextView>
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
app:tabMode="fixed"
app:tabGravity="fill"/>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity {
public TextView action_text;
public Toolbar toolbar;
TabLayout tabs;
ViewPager viewPager;
List<Fragment> fragmentList;
List<String> tab_title;
boolean flag=false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
tabs = (TabLayout) findViewById(R.id.tabs);
viewPager = (ViewPager) findViewById(R.id.viewpager);
action_text = (TextView) toolbar.findViewById(R.id.action_text);
fragmentList = new ArrayList<>();
tab_title = new ArrayList<>();
tab_title.add("ONE");
tab_title.add("TWO");
fragmentList.add(new OneFragment());
fragmentList.add(new TwoFragment());
ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager(), fragmentList, tab_title);
viewPager.setAdapter(viewPagerAdapter);
viewPager.setCurrentItem(0);
tabs.setupWithViewPager(viewPager);
action_text.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Fragment fragment=new ThirdFragment();
FragmentTransaction fragmentTransaction=getSupportFragmentManager().beginTransaction();
if(!fragment.isHidden()) {
fragmentTransaction.replace(R.id.container,fragment);
flag=true;
}
else{
fragmentTransaction.remove(fragment);
flag=false;
}
fragmentTransaction.commit();
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case R.id.action_settings:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
In above code i set the flat onClick of the textview over the actionBar for hiding and showing the fragment. In my demo the problem is it show the tab when my third fragment is open and it does not hide.
Please help me to recognized what is it open on click of the actionBar?

Try the code as below: activity_main.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"
tools:context=".ScrollingActivity">
<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">
<TextView
android:id="#+id/action_text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="25dp"
android:layout_marginRight="25dp"
android:clickable="true"
android:drawableRight="#mipmap/ic_launcher"
android:gravity="center"
android:text="Text view"
android:textColor="#FFFFFF"
android:textSize="20sp"></TextView>
</android.support.v7.widget.Toolbar>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/toolbar">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/white"
app:tabGravity="fill"
app:tabMode="fixed" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/tabs"
android:background="#android:color/white" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/reltv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/toolbar"
android:background="#80ffffff"
android:visibility="gone">
<RelativeLayout
android:id="#+id/reltv2"
android:layout_width="match_parent"
android:layout_height="100dp"
android:background="#android:color/white">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Do whatever you like it here."
android:textAppearance="?attr/textAppearanceLargePopupMenu" />
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_alignParentBottom="true"
android:background="#android:color/darker_gray" />
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>
And your ManiActivity.java as below:
public class MainActivity extends AppCompatActivity {
public TextView action_text;
public Toolbar toolbar;
TabLayout tabs;
ViewPager viewPager;
List<Fragment> fragmentList;
List<String> tab_title;
boolean flag = false;
RelativeLayout reltv;
RelativeLayout reltv2;
boolean isShown = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
tabs = (TabLayout) findViewById(R.id.tabs);
viewPager = (ViewPager) findViewById(R.id.viewpager);
action_text = (TextView) toolbar.findViewById(R.id.action_text);
reltv = (RelativeLayout) findViewById(R.id.reltv);
reltv2 = (RelativeLayout) findViewById(R.id.reltv2);
fragmentList = new ArrayList<>();
tab_title = new ArrayList<>();
tab_title.add("ONE");
tab_title.add("TWO");
fragmentList.add(new OneFragment());
fragmentList.add(new TwoFragment());
ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager(), fragmentList, tab_title);
viewPager.setAdapter(viewPagerAdapter);
viewPager.setCurrentItem(0);
tabs.setupWithViewPager(viewPager);
action_text.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (!isShown) {
isShown=true;
reltv.setVisibility(View.VISIBLE);
}else {
isShown=false;
reltv.setVisibility(View.GONE);
}
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_scrolling, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_settings:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}

First, you should use some translucent or transparent colour for the android: background of parent's attribute in the fragment layout e.g DayFragment . This is the fragment you will inflate in the overlay FrameLayout.
For a smooth inflation of that fragment, you can use custom animation to make the transition smooth like in the Munchery app(uses slide from top animation)
protected void replaceFragment(int containerViewId, Fragment fragment, boolean isAddToBackStack, boolean isAnimateTransition) {
String backStateName = fragment.getClass().getName();
FragmentManager fm = this.getSupportFragmentManager();
boolean fragmentPopped = fm.popBackStackImmediate(backStateName, 0);
if (!fragmentPopped && getSupportFragmentManager().findFragmentByTag(backStateName) == null) {
FragmentTransaction ft = fm.beginTransaction();
if(isAnimateTransition) {
animateFragmentTransition(ft);
}
ft.replace(containerViewId, fragment, backStateName);
if (isAddToBackStack) {
ft.addToBackStack(backStateName);
}
ft.commit();
}
}
private void animateFragmentTransition(FragmentTransaction ft) {
ft.setCustomAnimations(R.anim.fade_in, R.anim.fade_out, R.anim.slide_in_from_top, R.anim.slide_out_to_top);
}
DayFragment fragment = DayFragment.newInstance(null);
replaceFragment(R.id.container, fragment, false, true);
Alternitively, you can use ObjectAnimators to revael and hide views as you wish. For example:-
private void animate() {
View viewToShiftOut = mNormalModelayoutContainer;
View viewToShiftIn = mEditModelayoutContainer;
ObjectAnimator outAnim = ObjectAnimator.ofFloat(viewToShiftOut, "y", 0, -heightOfScreen);
ObjectAnimator inAnim = ObjectAnimator.ofFloat(viewToShiftIn, "y", heightOfScreen , 0);
outAnim.setDuration(1000);
inAnim.setDuration(1000);
outAnim.start();
inAnim.start();
}

Android kitkat - AppCompat: Doesn't load fragments in my FrameLayout container.(Using a Navigation drawer)

I have implemented a DrawerLayout with Material Design, using AppCompat and it's working ok. The problem is when I try to load a fragment in the container never appear.. and I don't know why.
Below is my activity class
public class MyActivity extends ActionBarActivity {
private Toolbar toolbar;
private DrawerLayout drawerLayout;
private ActionBarDrawerToggle drawerToggle;
private ListView leftDrawerList;
private ArrayAdapter<String> navigationDrawerAdapter;
private String[] leftSliderData = {"Estaciones", "Favorito", "Contacta"};
private int mCurrentSelectedPosition = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
nitView();
if (toolbar != null) {
setSupportActionBar(toolbar);
}
initDrawer();
}
private void nitView() {
leftDrawerList = (ListView) findViewById(R.id.left_drawer);
toolbar = (Toolbar) findViewById(R.id.toolbar);
drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
navigationDrawerAdapter=new ArrayAdapter<String>( MyActivity.this, android.R.layout.simple_list_item_1, leftSliderData);
leftDrawerList.setAdapter(navigationDrawerAdapter);
leftDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.e("TEST", position + "");
FragmentManager fragmentManager = getFragmentManager();
Fragment fragment = new Fragment();
switch(position) {
case 0:
fragment = new Estacion();
break;
case 1:
fragment = new Favorito();
break;
case 2:
fragment = new Contacta();
break;
}
fragmentManager.beginTransaction()
.replace(R.id.container, fragment)
.commit();
}
});
}
private void initDrawer() {
drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) {
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
}
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}
};
drawerLayout.setDrawerListener(drawerToggle);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
drawerToggle.onConfigurationChanged(newConfig);
}
}
my xml layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
tools:context=".MainActivity">
<include layout="#layout/toolbar" />
<android.support.v4.widget.DrawerLayout
android:layout_width="match_parent"
android:id="#+id/drawerLayout"
android:layout_height="match_parent">
<!-- The main content view -->
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- activity view -->
<RelativeLayout
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<TextView
android:layout_centerInParent="true"
android:layout_width="wrap_content"
android:textColor="#android:color/white"
android:text="Activity Content"
android:layout_height="wrap_content" />
</RelativeLayout>
<!-- navigation drawer -->
<RelativeLayout
android:layout_gravity="left|start"
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<ListView
android:id="#+id/left_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#eee"
android:background="#fff"
android:dividerHeight="1dp" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
Thanks!

your main content view of drawer must be one ViewGroup so you must put all your views as children of one viewgroup so put
<!-- The main content view -->
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
as a child of
<!-- activity view -->
<RelativeLayout
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<TextView
android:layout_centerInParent="true"
android:layout_width="wrap_content"
android:textColor="#android:color/white"
android:text="Activity Content"
android:layout_height="wrap_content" />
</RelativeLayout>

Develop Reference

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Android kitkat - AppCompat: Doesn't load fragments in my FrameLayout container.(Using a Navigation drawer)

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