<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
    <item 
        android:id="@+id/action_search"
        android:icon="@drawable/ic_action_search"
        android:title="查找"
        android:showAsAction="ifRoom"/>
    <item 
        android:id="@+id/action_setting"
        android:title="设置"
        android:showAsAction="never"/>
</menu>

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch(item.getItemId()){
        case R.id.action_search:
            Toast.makeText(this, "正在查找。。。", Toast.LENGTH_SHORT).show();
            break;
        case R.id.action_overflow:
            Toast.makeText(this, "更多选项。。。", Toast.LENGTH_SHORT).show();
        }
        return super.onOptionsItemSelected(item);
    }

        <activity 
            android:name=".ActionBarActivity"
            android:parentActivityName="com.njulya.demo_view.MainActivity" >
            <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value="com.njulya.demo_view.MainActivity" />
        </activity>

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = this.getMenuInflater();
        inflater.inflate(R.menu.actionbar_actions, menu);
        //添加返回主Activity功能
        getActionBar().setDisplayHomeAsUpEnabled(true);
        return super.onCreateOptionsMenu(menu);
    }

    <item 
        android:id="@+id/action_search"
        android:icon="@drawable/ic_action_search"
        android:title="查找"
        android:showAsAction="ifRoom|collapseActionView"
        android:actionViewClass="android.widget.SearchView"/>