Android Option Menu Example

Android Option Menu Example

1. activity_main.xml
2. <RelativeLayout xmlns:androclass="http://schemas.android.com/apk/res/android"  
3.     xmlns:tools="http://schemas.android.com/tools"  
4.     android:layout_width="match_parent"  
5.     android:layout_height="match_parent"  
6.     android:paddingBottom="@dimen/activity_vertical_margin"  
7.     android:paddingLeft="@dimen/activity_horizontal_margin"  
8.     android:paddingRight="@dimen/activity_horizontal_margin"  
9.     android:paddingTop="@dimen/activity_vertical_margin"  
10.     tools:context=".MainActivity" >  
11.   
12.     <TextView  
13.         android:layout_width="wrap_content"  
14.         android:layout_height="wrap_content"  
15.         android:text="@string/hello_world" />  
16.   
17. </RelativeLayout>  

 menu_main.xml

1. <menu xmlns:androclass="http://schemas.android.com/apk/res/android" >  
2.     <item  android:id="@+id/item1" 
3.         android:title="Item 1"/>  
4.     <item  android:id="@+id/item2"  
5.         android:title="Item 2"/>  
6.     <item  android:id="@+id/item3"  
7.         android:title="Item 3"/>  
8. </menu> 
9. 
   
10. MainActivity.java 

1. import android.os.Bundle;  
2. import android.app.Activity;  
3. import android.view.Menu;  
4. import android.view.MenuItem;  
5. import android.widget.Toast;  
6. public class MainActivity extends Activity {  
7.     @Override  
8.     protected void onCreate(Bundle savedInstanceState) {  
9.         super.onCreate(savedInstanceState);  
10.         setContentView(R.layout.activity_main);  
11.     }  
12.     @Override  
13.     public boolean onCreateOptionsMenu(Menu menu) {  
14.         // Inflate the menu; this adds items to the action bar if it is present.  
15.         getMenuInflater().inflate(R.menu.main, menu);//Menu Resource, Menu  
16.         return true;  
17.     }  
18.     @Override  
19.     public boolean onOptionsItemSelected(MenuItem item) {  
20.         switch (item.getItemId()) {  
21.             case R.id.item1:  
22.               Toast.makeText(getApplicationContext(),"Item 1 Selected",Toast.LENGTH_LONG).show();  
23.             return true;     
24.            case R.id.item2:  
25.                 Toast.makeText(getApplicationContext(),"Item 2 Selected",Toast.LENGTH_LONG).show();  
26.               return true;     
27.             case R.id.item3:  
28.                 Toast.makeText(getApplicationContext(),"Item 3 Selected",Toast.LENGTH_LONG).show();  
29.               return true;     
30.               default:  
31.                 return super.onOptionsItemSelected(item);  
32.         }  
33.     }  
34. }  

    I Am Not The Owner Of These Code .I Merely Have Copied Them From Various Sources. The Only Thing I Did Is That I Am Going To Present Them In More Easy Way To Understand.