CoderzHeaven

August 23, 2012

How to start with ActionBar in Android?

With Android 3.0 Google eliminated the need of hardware menu button which is replaced by Action Bars.

Here is a quick example on how to use ActionBars.

First create a new project and name it ActionBarExample.

Now create a folder named “menu” in res folder and create a new XML file inside it named “action_bar_menu.xml”.

action_bar_menu.xml

<?xml version="1.0" encoding="utf-8"?><menu xmlns:android="http://schemas.android.com/apk/res/android" ><item android:id="@+id/menuitem1" android:showAsAction="ifRoom" android:title="Test1"></item><item android:id="@+id/menuitem2" android:showAsAction="ifRoom" android:title="Test2"></item></menu>

Now the java code for implementing this ActionBar.

MainActivity.java

package com.example.actionbarexample;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 MainActivity extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {MenuInflater inflater = getMenuInflater();inflater.inflate(R.menu.action_bar_menu, menu);return true;}@Overridepublic booleanonOptionsItemSelected(MenuItem item) {switch (item.getItemId()) {case R.id.menuitem1:Toast.makeText(this, "Test 1 Clicked", Toast.LENGTH_SHORT).show();break;case R.id.menuitem2:Toast.makeText(this, "Test 2 Clicked", Toast.LENGTH_SHORT).show();break;default:break;}return true;}}

As there is enough space in the ActionBar otherwise you may see the Overflow menu or you have to use the Option menu button on your phone.

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