OPTIONS MENU IN ANDROID EXAMPLE

   OPTIONS MENU IN ANDROID EXAMPLE

In Android there are mainly 3 types of menus are acaiable

•    options menu

•    context menu

•    popup menu

          following is the example for the options menu.in this first we want to create a menu folder in the res and inside the menu create a xml file

menuj.xml  

<?xml version="1.0" encoding="utf-8"?>

<menu

  xmlns:android="http://schemas.android.com/apk/res/android">

    <item 

    android:id="@+id/item1"

     android:title="add" 

     android:icon="@drawable/bb"  >

     </item>

    <item 

    android:id="@+id/item2" 

    android:title="delete" 

    android:icon="@drawable/cc">

    </item>

    <item 

    android:id="@+id/item3" 

    android:title="exit" 

    android:icon="@drawable/aa">

    </item>

    

</menu>

OptionalmenuActivity.java

package a.b;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.widget.Toast;

public class OptionalmenuActivity extends Activity {

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        MenuInflater inflater = getMenuInflater();

        inflater.inflate(R.menu.menuj, menu);

        return true;

    }

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        // Handle item selection

        switch (item.getItemId()) {

            case R.id.item1:

                add();

                return true;

            case R.id.item2:

                delete();

                return true;

            case R.id.item3:

                exit();

                return true;

            default:

                return super.onOptionsItemSelected(item);

        }

    }

private void exit() {

// TODO Auto-generated method stub

Toast.makeText(this, "jithu exit demo", Toast.LENGTH_SHORT).show();

}

private void add() {

Intent i=new Intent(this,abc.class);

startActivity(i);

// TODO Auto-generated method stub\

Toast.makeText(this, "function 2 called", Toast.LENGTH_SHORT).show();

}

private void delete() {

// TODO Auto-generated method stub

Toast.makeText(this, "jithu", Toast.LENGTH_SHORT).show();

}

}

then the menu is created.then write the xml file

main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

<TextView  

    android:layout_width="fill_parent" 

    android:layout_height="wrap_content" 

    android:text="@string/hello"

    />

</LinearLayout>

main1.xml

<?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">

    <Button 

    android:text="Button" 

    android:id="@+id/button1" 

    android:layout_width="wrap_content" 

    android:layout_height="wrap_content">

    </Button>

    <Button 

    android:text="Button" 

    android:id="@+id/button2" 

    android:layout_width="wrap_content" 

    android:layout_height="wrap_content"></Button>

    <Button 

    android:text="Button" 

    android:id="@+id/button3" 

    android:layout_width="wrap_content" 

    android:layout_height="wrap_content">

    </Button>

    

</LinearLayout>