Develop Reference

Getting troubles making status bar hovering the activity

I have a web site, and I decided to make an Android application for it, but I actually write under win32 on c++, and have never programming under Android. So I decided to make just a Blink render instance, fit it the screen size in my app and load automatically my site. Also I want the status bar hovering on the "activity", searched the internet but can't do this, so please point me, where am I wrong. Stuff should work from Android 4.4 and above. Working in Android Studio
What do I have now:
What do I want to:
My code:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myapplication">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
activity_main.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=".MainActivity"
android:fitsSystemWindows="true">
<WebView
android:id="#+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
/>
styles.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#000000</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="android:windowTranslucentStatus">true</item>
</style>
MainActivity.java
package com.example.myapplication;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE|View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
WebView myWebView = findViewById(R.id.webview);
myWebView.setWebViewClient(new WebViewClient());
myWebView.loadUrl("http://somesite.com");
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
}
}

Try this on onCreate this will make both transparent
getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS,WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
or try
getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION,WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS,WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);

Add progress bar on top of your webview
<ProgressBar android:id="#+id/pB1"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:padding="2dip">
</ProgressBar>
And then you need to set progress status on the progressbar like this:
myWebView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
if(progress < 100 && pbar.getVisibility() == ProgressBar.GONE){
pbar.setVisibility(ProgressBar.VISIBLE);
}
pbar.setProgress(progress);
if(progress == 100) {
pbar.setVisibility(ProgressBar.GONE);
}
}
});

How to add a toolbar at the bottom?

I'm trying to have my toolbar at the bottom. I already tried some tips but the toolbar rests at the top.
So: What do I have to change so my toolbar appears at the bottom?
If you need more code - there isn't much more - or other informations, just say so.
My XML file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MapsActivity">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.testingmapingmarker23.MapsActivity"
/>
<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/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</LinearLayout>
And the .java:
package com.example.testingmapingmarker23;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ListView;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import static com.example.testingmapingmarker23.R.id.map;
public class MapsActivity extends AppCompatActivity implements OnMapReadyCallback {
private GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(map);
mapFragment.getMapAsync(this);
final Toolbar customToolbar = (Toolbar) findViewById(R.id.toolbar);
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
}
}
Styles.xml:
<resources>
<!-- Base application theme. -->
<!--<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!– Customize your theme here. –>
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>-->
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar" />
</resources>
Android Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testingmapingmarker23">
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<permission android:name="android.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value=" API-Key (I removed mine)" />
<activity
android:name=".MapsActivity"
android:label="#string/title_activity_maps">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

You can use Relative layout like this,
<?xml version="1.0" encoding="utf-8"?>
<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">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/toolbar"
tools:context="com.example.testingmapingmarker23.MapsActivity"
/>
<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/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"/>
</RelativeLayout>

First of all you need to Add navigationToolBar instead of ToolBar
try this Link
See This
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/colorPrimary"
app:itemIconTint="#color/nav_item_state_list"
app:itemTextColor="#color/nav_item_state_list"
app:menu="#menu/bottom_navigation_items"/>

How to get a button image into the Action bar

A button with a given image shall appear in the action bar. The Image below illustrates what I need:
In order to isolate the problem, I used the template from Android Studio which has an action bar and added an item to the menu list pointing to my png file in the drawable resource folder.
Here the Code:
MainActivity:
package com.pm.pmactionbaricon;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
}
The menu Definition:
<menu 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"
tools:context="com.pm.pmactionbaricon.MainActivity">
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:title="#string/action_settings"
app:showAsAction="never" />
<item
android:id="#+id/distance_button"
android:icon="#drawable/distance_waiting"
android:title="#string/Distance"
android:orderInCategory="100"
android:showAsAction="ifRoom"/>
</menu>
The main layout file:
<?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.pm.pmactionbaricon.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
The manifest file:
<?xml version="1.0" encoding="utf-8"?>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
What I get from this is an Action bar without icon even though there is sufficient room:
The relevant menu item instead appears in the overflow menu:
Perhaps I have a fundamental misunderstanding about this. Any explanation would be welcome. Is it not possible to achieve this trivial task in Android? Which method do I have to apply to make a custom image visable as button and to control ist appearance and size in the action bar?

Make a custom_toolbar.xml and include it in your layout.()
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
app:layout_collapseMode="pin"
android:id="#+id/toolbar"
android:layout_height="?attr/actionBarSize"
android:padding="0dp"
android:layout_width="match_parent"
android:background="#android:color/transparent"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="left">
//define your own layout here ,whatever you want to include
</RelativeLayout>
</android.support.v7.widget.Toolbar>

v7 widget toolbar not showing, why?

I am so close. I have the android studio project set up correctly with libs, the project compiles, and the emulators and device run the app. I am trying to get rid of the bottom button popup menu of older devices and replace with v7 appcompat toolbar. The old action bar is gone but the menu inflate still inflates to the old popup menu.
I start off using a splashscreen then the app main shows the database view activity. This means I have to dynamically load the toolbar.
My thinking now is the only place I have left to work out is the styles/themes or the order of setcontent(this) to display the main app/database view screen.
Also I dont have the correct emulator for the HTC evo device so the device buttons dont show. I believe this is why alot of developers post that the toolbar doesnt show. When I install apk on real device i can the use the menu button. This is how I am able to see that the menu is not in the toolbar. The emulator shows no buttons plus no toolbar so a developer on an emulator of newer devices would never see this.
I hope this enough to go on for any one to catch my pitfall here.
Thanks in advance.
Here are codes snippets:
styles.xml:
<resources>
<!--
Base application theme, dependent on API level. This theme is replaced
by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
-->
<style name="AppBaseTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!--
Theme customizations available in newer API levels can go in
res/values-vXX/styles.xml, while customizations related to
backward-compatibility can go here.
-->
</style>
<!-- Application theme. -->
<!--<style name="AppTheme" parent="AppBaseTheme">-->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- All customizations that are NOT specific to a particular API-level can go here. -->
<item name="windowNoTitle">true</item>
<item name="windowActionBar">true</item>
<item name="android:textColor">#000000</item>
</style>
</resources>
Toolbarmenu.xml:
<?xml version="1.0" encoding="utf-8"?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
<item
android:id="#+id/add"
android:icon="#android:drawable/ic_menu_add"
app:showAsAction="ifRoom"
android:title="#string/app_name"/>
<item
android:id="#+id/reset"
android:icon="#android:drawable/ic_menu_revert"
app:showAsAction="ifRoom"
android:title="#string/action_settings"/>
<item
android:id="#+id/about"
android:icon="#android:drawable/ic_dialog_info"
app:showAsAction="ifRoom"
android:title="#string/hello_world">
</item>
<item
android:id="#+id/exit"
app:showAsAction="ifRoom"
android:title="#string/Menu">
</item>
</menu>
Manifest.xlm:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.loadrunner"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.loadrunner.SplashScreenActivity"
android:label="#string/app_name"
android:theme="#android:style/Theme.Translucent.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.loadrunner.MainActivity"
android:exported="true"
android:label="#string/app_name"
android:theme="#style/Theme.AppCompat.Light.NoActionBar">
<intent-filter>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
lrtoolbar.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:background="#2196f3"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="4dp"
android:minHeight="200dp">
</android.support.v7.widget.Toolbar>
</LinearLayout>
Layout_main.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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".SplashScreenActivity"
android:visibility="visible"
android:background="#color/black">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageViewSplashLogo"
android:src="#drawable/shoppingcartloading"
android:visibility="visible"
android:contentDescription="#string/app_name"
android:scaleType="fitCenter"
android:cropToPadding="true"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:background="#color/black" />
</RelativeLayout>
And finally the code:
import android.app.ActionBar;
import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.SpinnerAdapter;
import android.widget.Toast;
import com.Table.TableMainLayout;
public class MainActivity extends AppCompatActivity {
final String TAG = "MainActivity.java";
public static DatabaseHandler db;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Log.d("SplashMainActivityonCre", "made it");
db = new DatabaseHandler(this);
db.getWritableDatabase();
db.insertFast(100);
int dbreccnt = db.countRecords();
//Log.d("SplashAfterDBCreate", "made it");
//Log.d("AppLoadrunner ", "Loadrunner record count " + dbreccnt);
Toolbar LrToolBar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(LrToolBar);
//getSupportActionBar().setDisplayShowHomeEnabled(true);
//LrToolBar.setNavigationContentDescription(getResources().getString(R.string.app_name));
setContentView(new TableMainLayout(this));
TableMainLayout start:
package com.Table;
import android.content.Context;
import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.widget.HorizontalScrollView;
import android.widget.RelativeLayout;
import android.widget.ScrollView;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
//import android.database.Cursor;
import com.loadrunner.DatabaseHandler;
import com.loadrunner.R;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
public class TableMainLayout extends RelativeLayout {
public final String TAG = "TableMainLayout.java";

I have maybe the answer : you just get your toolbar before setContentView() method...
Just try this :
setContentView(new TableMainLayout(this));
Toolbar LrToolBar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(LrToolBar);
//getSupportActionBar().setDisplayShowHomeEnabled(true);
//LrToolBar.setNavigationContentDescription(getResources().getString(R.string.app_name));
Hope it will help you

Make your Toolbar layout like thie:
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:background="#2196f3"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="4dp"
android:minHeight="200dp" />
and in your Activity code replace the Toolbar LrToolBar = (Toolbar) findViewById(R.id.toolbar); with the:
Toolbar toolbar = LayoutInflater.from(this).inflate(R.layout.toolbar_layout_name, null)
setSupportActionBar(toolbar);
Hope it works.

Try this:
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="windowActionModeOverlay">true</item>
<item name="windowActionBar">false</item> //see this line
<item name="android:windowNoTitle">true</item>
</style>
Try setting <item name="windowActionBar">false</item>
I hope this helps!

Android: Missing overflow menu in Material Design

My overflow menu is not appearing in my action bar/App bar (even running emulator) but it only appears in menu_main.xml. What can I do?
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mo.thesis">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/title_activity_main">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
app_bar.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:background="#ccc">
</android.support.v7.widget.Toolbar>
MainActivity.java
package com.mo.thesis;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
private Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
}
protected boolean onCreateOptionMenu(Menu menu) {
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);
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<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"
tools:context="com.mo.thesis.MainActivity">
<include
android:id="#+id/app_bar"
layout="#layout/app_bar" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="#+id/textView"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:layout_marginStart="78dp"
android:layout_marginTop="119dp" />
</RelativeLayout>
activity_main.xml Screen Preview:
menu_main.xml
<menu 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"
tools:context=".MainActivity">
<item
android:id="#+id/action_settings"
android:title="#string/action_settings"
android:orderInCategory="100"
app:showAsAction="never" />
</menu>
menu_main.xml Screen Preview:
styles.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="AppTheme.Base">
<!-- Customize your theme here. -->
</style>
<style name="AppTheme.Base" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#color/primaryColor</item>
<item name="colorPrimaryDark">#color/primaryColorDark</item>
<item name="colorAccent">#color/accentColor</item>
</style>
</resources>

Hope this helps, From your code did not found any issue.
There might be other issue ---
The on-screen overflow menu button only appears in the action bar on devices that lack an off-screen MENU button. Try pressing the MENU button on your device or emulator.
please read this Menu Button - Missing answer.

Your menu is set to never show
<item
android:id="#+id/action_settings"
android:title="#string/action_settings"
android:orderInCategory="100"
app:showAsAction="never" />
Change last line there to "always"