Create ActionBar using XML

In the article "Show Action Item with icon and text", it was shown how to create ActionBar using Java code. The items of ActionBar can be defined using XML also.



Modify from the article "Show Action Item with icon and text".

- Create a XML file /res/menu/menu.xml to define the menu items of the ActionBar.

<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/itemid_0"
        android:title="Action Item 0"
        android:icon="@drawable/ic_launcher"
        android:orderInCategory="0"
        android:showAsAction="ifRoom|withText" />
    <item android:id="@+id/itemid_1"
        android:title="Action Item 1"
        android:orderInCategory="0" />
    <item android:id="@+id/itemid_2"
        android:title="Action Item 2"
        android:orderInCategory="0" />
    <item android:id="@+id/itemid_3"
        android:title="Action Item 3"
        android:orderInCategory="0" />
</menu>

- Modify onCreateOptionsMenu() to inflate the XML file. Also modify onOptionsItemSelected() to change the itemId(s) accordingly.

package com.exercise.AndroidActionBar;

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

public class AndroidActionBarActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        Button showActionBar = (Button)findViewById(R.id.showactionbar);
        Button hideActionBar = (Button)findViewById(R.id.hideactionbar);
        
        showActionBar.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    ActionBar actionBar = getActionBar();
    actionBar.show();
   }});
        
        hideActionBar.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    ActionBar actionBar = getActionBar();
    actionBar.hide();
   }});
        
        
    }

 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  MenuInflater menuInflater = getMenuInflater();
        menuInflater.inflate(R.menu.menu, menu);

        return super.onCreateOptionsMenu(menu);
 }

 @Override
 public boolean onOptionsItemSelected(MenuItem item) {
  
  switch(item.getItemId()){
  case R.id.itemid_0:
   Toast.makeText(AndroidActionBarActivity.this, 
     "Action Item 0 selected!", 
     Toast.LENGTH_LONG).show();
   return true;
  case R.id.itemid_1:
   Toast.makeText(AndroidActionBarActivity.this, 
     "Action Item 1 selected!", 
     Toast.LENGTH_LONG).show();
   return true;
  case R.id.itemid_2:
   Toast.makeText(AndroidActionBarActivity.this, 
     "Action Item 2 selected!", 
     Toast.LENGTH_LONG).show();
   return true;
  case R.id.itemid_3:
   Toast.makeText(AndroidActionBarActivity.this, 
     "Action Item 3 selected!", 
     Toast.LENGTH_LONG).show();
   return true;
  default:
   return false;
  
  }
  
 }
}

Download the files.

Related:
- Split Action Bar for Android 4