建立action bar item

建立action bar item

MainActivity

package com.sample.t2014722;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}

if (id == R.id.action_search) {

Log.d("ACTION", "Search Pressed");

return true;
}

if(id == R.id.action_share){

Log.d("ACTION","Share Pressed");

return true;
}


return super.onOptionsItemSelected(item);
}
}

Menu

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context="com.sample.t2014722.MainActivity" >

    <item android:id="@+id/action_share"
      android:icon="@drawable/ic_launcher"
      android:title="@string/action_share"
      android:showAsAction="ifRoom" />
   
   
     <item android:id="@+id/action_search"
      android:icon="@drawable/ic_launcher"
      android:title="@string/action_search"
      android:showAsAction="ifRoom" />
   
    <item
        android:id="@+id/action_settings"
        android:orderInCategory="100"
        android:showAsAction="never"
        android:title="@string/action_settings"/>

</menu>

String

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

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

    <string name="app_name">T2014722</string>

    <string name="hello_world">Hello world!</string>

    <string name="action_settings">Settings</string>

    <string name="action_search">Search</string>

    <string name="action_share">Share</string>

</resources>