creating menu in Android

Question

I am new to Android application development.I want to develop a simple android application which contains menus.Is there any source code on internet.Can anybody tell me how should i pursue

Thanks in advance Tushar

Answer 1

Everything you need to know is in the Android Dev Guide.

What it comes down to - and I'm just copying relevant parts from the Android Dev guide - is creating an XML menu resource, e.g. this one, and saving it as game_menu.xml:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/new_game"
          android:icon="@drawable/ic_new_game"
          android:title="@string/new_game" />
    <item android:id="@+id/help"
          android:icon="@drawable/ic_help"
          android:title="@string/help" />
</menu>

And then inflating it within your activity:

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

When an item is clicked, you can do several actions:

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle item selection
    switch (item.getItemId()) {
    case R.id.new_game:
        newGame();
        return true;
    case R.id.help:
        showHelp();
        return true;
    default:
        return super.onOptionsItemSelected(item);
    }
}

Answer 2

XML CODE:

<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/menu_new"          
          android:title="New" />

     <item android:id="@+id/menu_about"         
          android:title="About" />

    <item android:id="@+id/menu_help"         
          android:title="Help" />
</menu>

Main Code:

package com.menuexample;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.Toast;

public class MenuSample 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 menuInflater = getMenuInflater();
        menuInflater.inflate(R.layout.menus, menu);
        return true;
    } 

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {

        switch (item.getItemId())
        {
        case R.id.menu_about:
            Toast.makeText(MenuSample.this, "You Clicked About", 3000).show();
            return true;
        case R.id.menu_help:
            Toast.makeText(MenuSample.this, "You Clicked Help", 3000).show();
            return true;
        case R.id.menu_new:
            Toast.makeText(MenuSample.this, "You Clicked New", 3000).show();
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }
}