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ConstraintLayout with ListView doesn't show any data

I've constructed a simple app that consist of a FloatingActionButton and a Snackbar.
When the user clicks the FAB, the actual date should be displayed in main content of app.
Unfortunately, when I'm clicking on the FAB only the Snackbar's working. ListItems doesn't show anything.
What's wrong with my code?
MainActivity.java:
public class MainActivity extends AppCompatActivity {
ArrayList<String> listItems = new ArrayList<String>();
ArrayAdapter<String> adapter;
private ListView myListView;
#Override
protected void onStart() {
super.onStart();
myListView = findViewById(R.id.listView);
adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, listItems);
myListView.setAdapter(adapter);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
addListItem();
Snackbar.make(view, "Item added to list", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
#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) {
// 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);
}
private void addListItem(){
SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss MM/dd/yyyy", Locale.US);
listItems.add(dateFormat.format(new Date()));
adapter.notifyDataSetChanged();
}
}
XML of it:
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/Theme.FabExample.AppBarOverlay">
<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/Theme.FabExample.PopupOverlay" />
</com.google.android.material.appbar.AppBarLayout>
<include layout="#layout/content_main" />
<com.google.android.material.floatingactionbutton.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="#drawable/ic_add_entry" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Fragment's java:
public class FirstFragment extends Fragment {
#Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_first, container, false);
}
public void onViewCreated(#NonNull View view, Bundle savedState) {
super.onViewCreated(view, savedState);
}
}
Fragment's XML:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".FirstFragment">
<ListView
android:id="#+id/listView"
android:layout_width="0dp"
android:layout_height="0dp"
tools:layout_editor_absoluteX="117dp"
tools:layout_editor_absoluteY="332dp" />
</androidx.constraintlayout.widget.ConstraintLayout>

I've not run your code, but it looks pretty good overall. Items are being added to the list and adapter.notifyDataSetChanged(); is being called afterwards. But one small item, you can call add directly on the adapter and it will notify regarding the change.
Platform source code for ArrayAdapter:
public void add(#Nullable T object) {
synchronized (mLock) {
if (mOriginalValues != null) {
mOriginalValues.add(object);
} else {
mObjects.add(object);
}
mObjectsFromResources = false;
}
if (mNotifyOnChange) notifyDataSetChanged();
}
One thing that stands out, the ListView layout does not look right:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".FirstFragment">
<ListView
android:id="#+id/listView"
android:layout_width="0dp"
android:layout_height="0dp"
tools:layout_editor_absoluteX="117dp"
tools:layout_editor_absoluteY="332dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
It has no height or width
There are no constraints
I would suggest changing it to:
android:layout_width="match_parent"
android:layout_height="match_parent"
[Perhaps wrap_content depending on your requirements.]
Also be sure to add some constraints to your ConstraintLayout. If you're not sure, press "infer constraints" at the top of the design editor or use a simpler ViewGroup container. But the ones there now in the "tools:" namespace are only used by the Android Studio "design" tab. They are not meant for the actual device.
For example:
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"

DrawerToggle Hamburger icon not showing

I am new to android. currently, I am making an android app with a navigation drawer. I managed to add the drawer. and when slid it works properly. but my problem is I cannot manage to add a hamburger icon.
my minimum sdk version is 17
I tried every solution given in the previous problems but didn't work.
My main activity code
package com.example.myapplication;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.drawerlayout.widget.DrawerLayout;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar myToolbar = (Toolbar) findViewById(R.id.my_toolbar);
setSupportActionBar(myToolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDefaultDisplayHomeAsUpEnabled(true);
DrawerLayout drawer =(DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, R.string.open, R.string.close);
drawer.addDrawerListener(toggle);
toggle.setDrawerIndicatorEnabled(true);
toggle.syncState();
}
// Menu icons are inflated just as they were with actionbar
#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;
}
}
my xml code
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="left">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#E0E0E0"
tools:context=".MainActivity"
android:fitsSystemWindows="true">
<androidx.appcompat.widget.Toolbar
android:id="#+id/my_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#null"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</RelativeLayout>
<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="#menu/activity_main_drawer"
android:fitsSystemWindows="true"/>
</androidx.drawerlayout.widget.DrawerLayout>

Everything looks fine, You just need to pass the toolbar object into the ActionBarDrawerToggle constructer as a third argument.
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, myToolbar, R.string.open, R.string.close);
here

Check out the following example:
MainActivity.class
public class MainActivity extends AppCompatActivity {
private final String TAG = MainActivity.class.getSimpleName();
private ActionBarDrawerToggle toggle = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar myToolbar = (Toolbar) findViewById(R.id.my_toolbar);
setSupportActionBar(myToolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
final ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayShowTitleEnabled(false);
actionBar.setHomeButtonEnabled(true);
actionBar.setDefaultDisplayHomeAsUpEnabled(true);
toggle = new ActionBarDrawerToggle(this, drawer, myToolbar, R.string.open, R.string.close) {
public void onDrawerClosed(View view) {
supportInvalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
supportInvalidateOptionsMenu();
}
};
toggle.setDrawerIndicatorEnabled(true);
drawer.addDrawerListener(toggle);
toggle.syncState();
}
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
if(toggle != null) {
toggle.syncState();
}
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
if (toggle != null) {
toggle.onConfigurationChanged(newConfig);
}
}
}
activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#E0E0E0"
android:fitsSystemWindows="true">
<androidx.appcompat.widget.Toolbar
android:id="#+id/my_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#null"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</RelativeLayout>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Text View"
android:textSize="35sp"
android:background="#color/colorAccent"
android:layout_gravity="start"
android:gravity="center">
</TextView>
</androidx.drawerlayout.widget.DrawerLayout>

Unable to start Activity, No view found for id

I am new with Android development, so this is probably a rookie mistake but, I am stuck.
I want to start an activity when clicking on the menu, but the following exception shows up:
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.mygymroutine.mygymroutine/com.mygymroutine.mygymroutine.activities.ActivitySchedule}:
java.lang.IllegalArgumentException: No view found for id 0x7f0d008b
(com.mygymroutine.mygymroutine:id/fragment_schedule) for fragment
ScheduleFragment{39f1839 #0 id=0x7f0d008b ...
This is the code related:
public class basic extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_basic);
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);
displaySelectedScreen(R.id.nav_schedule);
}
#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.basic, 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);
}
public boolean onNavigationItemSelected(MenuItem item) {
displaySelectedScreen(item.getItemId());
return true;
}
private void displaySelectedScreen(int itemId) {
Intent intent=null;
switch (itemId) {
case R.id.nav_schedule:
intent=new Intent(this, ActivitySchedule.class);
startActivity(intent);
break;
}
Activity code
package com.mygymroutine.mygymroutine.activities;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import com.mygymroutine.mygymroutine.Fragments.ScheduleFragment;
import com.mygymroutine.mygymroutine.R;
public class ActivitySchedule extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.acivity_schedule);
if(savedInstanceState==null){
ScheduleFragment fg = new ScheduleFragment();
getSupportFragmentManager().beginTransaction().add(R.id.fragment_schedule, fg)
.commit();
}
}
}
Fragment
package com.mygymroutine.mygymroutine.Fragments;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.mygymroutine.mygymroutine.R;
public class ScheduleFragment extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
//returning our layout file
//change R.layout.yourlayoutfilename for each of your fragments
View rootView=inflater.inflate(R.layout.fragment_schedule, container, false);
FloatingActionButton fab=(FloatingActionButton)rootView.findViewById(R.id.fab_schedule);
return inflater.inflate(R.layout.fragment_schedule, container, false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
getActivity().setTitle("Schedule");
}
}
Fragment Schedule 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"
android:id="#+id/fragment_schedule"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="17dp"
android:text="Schedule"
android:textAppearance="?android:attr/textAppearanceLarge" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab_schedule"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="41dp"
android:layout_marginEnd="32dp"
android:layout_marginRight="32dp"
android:clickable="true"
android:tint="#android:color/background_light"
app:backgroundTint="#android:color/holo_red_light"
app:fabSize="mini"
app:rippleColor="#android:color/transparent"
app:srcCompat="#android:drawable/ic_menu_add" />
</RelativeLayout>
Activity schedule xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.mygymroutine.mygymroutine.activities.ActivitySchedule">
</android.support.constraint.ConstraintLayout>

Here:
getSupportFragmentManager().beginTransaction().add(R.id.fragment_schedule, fg)
.commit();
You are passing R.id.fragment_schedule as the container of the fragment. Where the fragment will be inserted. However, R.id.fragment_schedule is part of your Fragment. So, it was not inflated yet. You can't use it as container since it was not created yet.
I think you want is:
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.mygymroutine.mygymroutine.activities.ActivitySchedule"
<!-- ADD LINE BELOW -->
android:id="#+id/fragment_container" >
</android.support.constraint.ConstraintLayout>
And change this:
getSupportFragmentManager().beginTransaction().add(R.id.fragment_schedule, fg)
.commit();
to this:
getSupportFragmentManager().beginTransaction().add(R.id.fragment_container, fg)
.commit();

In. The onOptionsItemSelected method add the following
(This method brings a parameter - MenuItem item)
switch (item.getItemId())
case R.id.myFirst
startActivity(new Intent(this, MyFirstActivity.class));
case R.id.mySecond
startActivity (newIntent(this, MySecondActivity.class));
And so on. You may define a layout for the activity with necessary views. You may also declare the activity in the Manifest file.
This works. I am starting my activities from the main like this.

Toolbar content not appearing despite fragment content appearing

I'm trying to show the necessary content within my toolbar (i.e. the title and back button) but for some reason is doesn't appear but yet the main content within my fragment does. What can be done to resolve this issue?
MapActivity.java
public class MapActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_map);
SubsamplingScaleImageView imageView = (SubsamplingScaleImageView)findViewById(R.id.imageView);
imageView.setImage(ImageSource.resource(R.drawable.map));
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
final Intent intent = NavUtils.getParentActivityIntent(this);
intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
NavUtils.navigateUpTo(this, intent);
return true;
}
return false;
}
}
FragmentMap.java
public class FragmentMap extends android.support.v4.app.Fragment {
public FragmentMap() {
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View v = inflater.inflate(R.layout.fragment_map, container, false);
Toolbar toolbar = (Toolbar) v.findViewById(R.id.actionBar);
toolbar.setBackgroundColor(Color.parseColor("#212121"));
AppCompatActivity activity = (AppCompatActivity) getActivity();
activity.setSupportActionBar(toolbar);
activity.getSupportActionBar().setTitle(Html.fromHtml("<font color='#FFFFFF'>" + getResources().getString(R.string.map) + "</font>"));
activity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
activity.getSupportActionBar().setDisplayShowHomeEnabled(false);
return v;
}
}
fragment_map.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/fragmentmap" >
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/actionBar"
android:elevation="4dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentInsetEnd="0dp"
app:contentInsetStart="16dp" >
</android.support.v7.widget.Toolbar>
<com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
styles.xml
<resources>
<style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
</style>
</resources>

Complete Code
MapActivity
import android.graphics.Color;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
public class MapActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
Toolbar toolbar = (Toolbar) findViewById(R.id.actionBar);
if (toolbar != null) {
setSupportActionBar(toolbar);
toolbar.setBackgroundColor(Color.parseColor("#212121"));
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(false);
}
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new MapActivityFragment())
.commit();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_map, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
switch (id) {
case android.R.id.home:
super. onBackPressed();
return true;
}
return super.onOptionsItemSelected(item);
}
}
activity_map.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res /android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/whiteColor"
android:id="#+id/fragmentmap" >
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/actionBar"
android:elevation="4dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentInsetEnd="0dp"
app:contentInsetStart="16dp" >
</android.support.v7.widget.Toolbar>
<LinearLayout
android:id="#+id/container"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
styles.xml
<style name="AppThemeNew" parent="Theme.AppCompat.NoActionBar">
</style>
MapActivityFragment.java
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A placeholder fragment containing a simple view.
*/
public class MapActivityFragment extends Fragment {
public MapActivityFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_map, container, false);
getActivity().setTitle(Html.fromHtml("<font color='#FFFFFF'>" + "Hello Toolbar" + "</font>"));
return rootView;
}
}
fragment_map.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:background="#color/whiteColor"
android:paddingBottom="#dimen/activity_vertical_margin">
<TextView android:text="#string/hello_world"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/blackColor"/>
</RelativeLayout>

Add this
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View v = inflater.inflate(R.layout.fragment_map, container, false);
Toolbar toolbar = (Toolbar) v.findViewById(R.id.actionBar);
toolbar.setBackgroundColor(Color.parseColor("#212121"));
//---- changes ---
((MapActivity) getActivity()).setTitle(Html.fromHtml("<font color='#FFFFFF'>" + getResources().getString(R.string.map) + "</font>"));
((MapActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
((MapActivity) getActivity()).getSupportActionBar().setDisplayShowHomeEnabled(false);
return v;
}

How to Display Navigation Drawer in all activities?

I have a Navigation Drawer which should appear in all my activities.
I saw many questions similar to this & found a solution like Extending the MainActivity with the Other Activities .
So i extended My Main Activity to my Second Activity.But the Drawer is not being showed in the Second Activity
MainActivity
public class MainActivity extends ActionBarActivity
{
private ListView mDrawerList;
private DrawerLayout mDrawer;
private CustomActionBarDrawerToggle mDrawerToggle;
private String[] menuItems;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
supportRequestWindowFeature(WindowCompat.FEATURE_ACTION_BAR);
// getSupportActionBar().hide();
setContentView(R.layout.activity_main_drawer);
// enable ActionBar app icon to behave as action to toggle nav drawer
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout);
// set a custom shadow that overlays the main content when the drawer
// opens
mDrawer.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
_initMenu();
mDrawerToggle = new CustomActionBarDrawerToggle(this, mDrawer);
mDrawer.setDrawerListener(mDrawerToggle);
}
private void _initMenu()
{
NsMenuAdapter mAdapter = new NsMenuAdapter(this);
// Add Header
mAdapter.addHeader(R.string.ns_menu_main_header);
// Add first block
menuItems = getResources().getStringArray(R.array.ns_menu_items);
String[] menuItemsIcon = getResources().getStringArray(R.array.ns_menu_items_icon);
int res = 0;
for (String item : menuItems)
{
int id_title = getResources().getIdentifier(item, "string", this.getPackageName());
int id_icon = getResources().getIdentifier(menuItemsIcon[res], "drawable", this.getPackageName());
NsMenuItemModel mItem = new NsMenuItemModel(id_title, id_icon);
// if (res==1) mItem.counter=12; //it is just an example...
// if (res==3) mItem.counter=3; //it is just an example...
mAdapter.addItem(mItem);
res++;
}
mAdapter.addHeader(R.string.ns_menu_main_header2);
mDrawerList = (ListView) findViewById(R.id.drawer);
if (mDrawerList != null)
mDrawerList.setAdapter(mAdapter);
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
}
#Override
protected void onPostCreate(Bundle savedInstanceState)
{
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig)
{
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.control_menu, menu);
return super.onCreateOptionsMenu(menu);
}
/* Called whenever we call invalidateOptionsMenu() */
#Override
public boolean onPrepareOptionsMenu(Menu menu)
{
// If the nav drawer is open, hide action items related to the content
// view
boolean drawerOpen = mDrawer.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_keyboard).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item)
{
/*
* The action bar home/up should open or close the drawer.
* ActionBarDrawerToggle will take care of this.
*/
if (mDrawerToggle.onOptionsItemSelected(item))
{
return true;
}
// Handle your other action bar items...
return super.onOptionsItemSelected(item);
}
private class CustomActionBarDrawerToggle extends ActionBarDrawerToggle
{
public CustomActionBarDrawerToggle(Activity mActivity, DrawerLayout mDrawerLayout)
{
super(mActivity, mDrawerLayout, R.drawable.ic_drawer, R.string.ns_menu_open, R.string.ns_menu_close);
}
#Override
public void onDrawerClosed(View view)
{
getSupportActionBar().setTitle(getString(R.string.ns_menu_close));
supportInvalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
#Override
public void onDrawerOpened(View drawerView)
{
getSupportActionBar().setTitle(getString(R.string.ns_menu_open));
supportInvalidateOptionsMenu(); // creates call to
// onPrepareOptionsMenu()
}
}
private class DrawerItemClickListener implements ListView.OnItemClickListener
{
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
Intent intent = new Intent(MainActivity.this, Tutorial.class);
startActivity(intent);
}
}
}
SecondActivity
public class Tutorial extends MainActivity
{
#Override
protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.help);
}
}

Here is my implementation.. hope it help
FIRST, this POST is concept.
SECOND, this is also the KEY one.
FINALLY, Here is combination of all answer in one place
BASE ACTIVITY
This is a base activity for all other activity
You can extends Activity or FragmentActivity or etc. base on your requirement.
Navigation Drawer setup here for one time.
public class BaseActivity extends FragmentActivity {
protected DrawerLayout mDrawer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.base_layout);
mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout);
//This is about creating custom listview for navigate drawer
//Implementation for NavigateDrawer HERE !
ArrayList<DrawerListItem> drawerListItems = new ArrayList<DrawerListItem>();
drawerListItems.add(new DrawerListItem(0,"AIR° DEVICES"));
drawerListItems.add(new DrawerListItem(1,"A/C Device [1]"));
drawerListItems.add(new DrawerListItem(1,"A/C Device [2]"));
drawerListItems.add(new DrawerListItem(1,"A/C Device [3]"));
drawerListItems.add(new DrawerListItem(0,"AIR° FEATURES"));
drawerListItems.add(new DrawerListItem(2,"SLEEP MODE"));
drawerListItems.add(new DrawerListItem(2,"TRACKING MODE"));
drawerListItems.add(new DrawerListItem(2,"SETTINGS"));
DrawerAdapter mDrawerAdapter = new DrawerAdapter(this, R.layout.drawer_list_header, drawerListItems);
ListView mDrawerList = (ListView) findViewById(R.id.left_drawer);
mDrawerList.setAdapter(mDrawerAdapter);
}
}
BASE ACTIVITY XML
This xml layout is for Navigation Drawer
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
<!-- The navigation drawer -->
<ListView
android:id="#+id/left_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="left"
android:scrollingCache="false"
android:background="#drawable/drawer_bg"
android:divider="#null"
android:choiceMode="singleChoice"/>
</android.support.v4.widget.DrawerLayout>
ALL OTHERS ACTIVITY
Other Activity just extends BaseActivity and define code as below.
The Navigation Drawer will appear for particular activity.
mDrawer is form BaseActivity. it's a protected variable.
public class Screen1 extends BaseActivity
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
//inflate your activity layout here!
View contentView = inflater.inflate(R.layout.screen1, null, false);
mDrawer.addView(contentView, 0);
//Do the rest as you want for each activity
}
SCREEN 1 XML SAMPLE
Design as you wish it each activity. no more Navigation Drawer Layout !
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
NOTE
In this implementation, The Navigation Drawer doesn't bind with Action Bar. If you wish to do that do it in BaseActivity.Also, This guide is not cover all requirement. It's just a sample.

in onCreate of TutorialActivity don't call setContentView instead do this:
#Override
protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
LayoutInflater inflater = (LayoutInflater) this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View contentView = inflater.inflate(R.layout.help, null, false);
mDrawer.addView(contentView, 0);
}
make mDrawer in MainActivity protected. and in R.layout.activity_main_drawer just keep drawer tag and the element with gravity left(or right).

I made a BaseActivity activity which extends SherlockActivity (or ActionBarActivity if is your case)
public class BaseActivity extends SherlockActivity
Then, make all your activities extends BaseActivity, like:
public class GlossaryActivity extends BaseActivity
Later, you must replace the activity layout with the one that correspond to your activity, I made a method in BaseActivity like that:
protected void replaceContentLayout(int sourceId, int destinationId) {
View contentLayout = findViewById(destinationId);
ViewGroup parent = (ViewGroup) contentLayout.getParent();
int index = parent.indexOfChild(contentLayout);
parent.removeView(contentLayout);
contentLayout = getLayoutInflater().inflate(sourceId, parent, false);
parent.addView(contentLayout, index);
}
I called this method on the onCreate method in each activity:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.replaceContentLayout(R.layout.activity_glossary, super.CONTENT_LAYOUT_ID);
}
super.CONTENT_LAYOUT_ID is the FrameLayout of the BaseActivity, and other param is the layout you want replace with

You omitted the #Override from your derived class onCreate.
UPDATE: I'm not sure what the effects are of calling setContentView twice but that could be the problem. Separate out the code that sets up the drawer, and call that from both of the onCreate methods.

I had this problem too. This is my implementation:
activity_main.xml - the child at index 1 in the CoordinatorLayout is the content_main.xml, this I can change in code.
<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
android:id="#+id/coordinator"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
**<include layout="#layout/content_main" />**
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
android:src="#android:drawable/ic_dialog_email" />
</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/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
I've created a class that uses inflates the others activities UI:
public class MyLayoutInflater {
public void inflate(Activity activity, int LayoutResource, android.app.ActionBar getSupportActionBar, Intent getIntent){
CoordinatorLayout coordinatorLayout = (CoordinatorLayout) activity.findViewById(R.id.coordinator);
android.view.LayoutInflater inflater = (android.view.LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View contentView = inflater.inflate(LayoutResource, null, false);
//change i so that it suits the child number in you coordinator layout
int i = 1;
coordinatorLayout.removeViewAt(i);
coordinatorLayout.addView(contentView, i);
getSupportActionBar.setTitle(actionBarTitle);
}
public void inflate(Activity activity, int LayoutResource, android.support.v7.app.ActionBar getActionBar, String actionBarTitle){
CoordinatorLayout coordinatorLayout = (CoordinatorLayout) activity.findViewById(R.id.coordinator);
android.view.LayoutInflater inflater = (android.view.LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View contentView = inflater.inflate(LayoutResource, null, false);
//change i so that it suits the child number in you coordinator layout
int i = 1;
coordinatorLayout.removeViewAt(i);
coordinatorLayout.addView(contentView, i);
getActionBar.setTitle(actionBarTitle);
}
}
Now on the other activities all you have to do is extend the MainActivity and call this method and give it the necessary parameters:
public class AnotherActivity extends MainActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
new MyLayoutInflater().inflate(this,R.layout.content_activity_another, getSupportActionBar(), getIntent());
}
}

Ok here is hacky way to do this, I use it only for special kind of debug build to set properties of views in realtime (design tool).
It has advantage that you can use your child activities as usual without, special behavior that is required in different answers.
so in BaseActvity you can add:
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// WARNING: Hacky, use carefully!!!
ViewGroup androidBaseView = (ViewGroup) findViewById(android.R.id.content);
//this one in what child activity has just set in setContentView()
ViewGroup childContent = (ViewGroup) androidBaseView.getChildAt(0);
View drawerView = LayoutInflater.from(this)
.inflate(R.layout.base_activity_drawer, androidBaseView, false);
FrameLayout frameLayout = (FrameLayout) drawerView.findViewById(R.id.content);
androidBaseView.removeView(childContent);
frameLayout.addView(childContent);
androidBaseView.addView(drawerView);
}
and xml for drawer is just:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/nav_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<FrameLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<LinearLayout
android:id="#+id/drawer_for_components"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="end"
android:orientation="vertical"
android:fitsSystemWindows="true"
/>
</android.support.v4.widget.DrawerLayout>

Here is a simple and fast way to do it in android studio:
Create a new activity (Navigation drawer activity) from the gallery, and name it whatever you want, android studio will create everything for you (the class and the xml files that you can customize it later)
In other activities you should extend your Navigation drawer activity, and make sure these other activities has "no action bar" in the manifests file (android:theme="#style/AppTheme.NoActionBar")
You should modify your other activities as follows:
public class Mainactivity extends NavActivity
{
super.onCreate(savedInstanceState);
LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
//inflate your activity layout here!
View contentView = inflater.inflate(R.layout.activity_main, null, false);
drawer.addView(contentView, 0);
}
Note: the mainactivity will extend the action bar of the NavActivity, the NavActivity has a full functional action bar that will call the navigation drawer
I hope it will work with you

Nowadays you should use Single-Activity App Architecture (source).
Then simple add Navigation Drawer to Main Activity

you can simply use <include/>
By creating a nav drawer
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
and then include the layout in it
<include
layout="#layout/activity_accounts"
android:layout_width="match_parent"
android:layout_height="match_parent" />
in your main activity make setContentView(R.layout.your_drawer_activity)
take note that if you use this method you have to create a nav drawer layout for every activity you have, unless you found a way to do includes programmatically.