OptionsMenu

The Options menu (or) choices menu is the essential gathering of menu things for a movement. It's the place you ought to place activities that globally affect the application, for example, "Look", "Form email," and "Settings."

    Example :-
                   @Override
                       public boolean onCreateOptionsMenu(Menu menu) {
                       MenuInflater inflater=getMenuInflater();
                       inflater.inflate(R.menu.kiran_menu,menu);
                       return true;
                       }

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.example.kiran.optiosmenus.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.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>

activity_status.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" 

 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="com.example.kiran.optiosmenus.SatusActivity">

<TextView 

 android:layout_width="wrap_content" 

 android:layout_height="wrap_content" 

 android:textAppearance="?android:attr/textAppearanceLarge" 

 android:text="Welcome to Status" 

 android:id="@+id/textView2" 

 android:layout_alignParentTop="true"         

 android:layout_alignParentRight="true" 

 android:layout_alignParentEnd="true" 

 android:layout_marginTop="83dp" />
</RelativeLayout>

content_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" 

 android:paddingBottom="@dimen/activity_vertical_margin" 

 android:paddingLeft="@dimen/activity_horizontal_margin" 

 android:paddingRight="@dimen/activity_horizontal_margin" 

 android:paddingTop="@dimen/activity_vertical_margin" 

 app:layout_behavior="@string/appbar_scrolling_view_behavior" 

 tools:context="com.example.kiran.optiosmenus.MainActivity" 

 tools:showIn="@layout/activity_main">

<TextView 

 android:layout_width="wrap_content" 

 android:layout_height="wrap_content" 

 android:textAppearance="?android:attr/textAppearanceLarge" 

 android:text="Welcome to Options Menus" 

 android:id="@+id/textView" 

 android:layout_alignParentTop="true" 

 android:layout_centerHorizontal="true" 

 android:layout_marginTop="105dp" />
</RelativeLayout>

MainActivity.java :-

package com.example.kiran.optiosmenus;

import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

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);
 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();
 }
 });
}

@Override 

 public boolean onCreateOptionsMenu(Menu menu) {
 getMenuInflater().inflate(R.menu.menu_main, menu);
 return super.onCreateOptionsMenu(menu);
 }

@Override

 public boolean onOptionsItemSelected(MenuItem item) {
 switch (item.getItemId()) {
 case R.id.item1:
Toast.makeText(MainActivity.this, "Status is Selected", 

                                                  Toast.LENGTH_SHORT).show();
 Intent in=new Intent(getApplicationContext(),SatusActivity.class);
 startActivity(in);
 break;
 case R.id.item2:
Toast.makeText(MainActivity.this, "Whatsapp Web is Selected", 

                                                  Toast.LENGTH_SHORT).show();
 break;
 case R.id.item3:
Toast.makeText(MainActivity.this, "Wallpaper is Selected", 

                                                   Toast.LENGTH_SHORT).show();
 break;
 case R.id.action_settings:
Toast.makeText(MainActivity.this, "Setting is Selected",

                                                    Toast.LENGTH_SHORT).show();
 break;
 }
 return super.onOptionsItemSelected(item);
 }
}

StatusActivity.java :-

package com.example.kiran.optiosmenus;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class SatusActivity extends AppCompatActivity {

@Override 

 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_satus);
 }
}

Output :-

OptionsMenu fig :1

OptionsMenu fig :2

OptionsMenu fig :3