Menu栏操作

package com.example.actionbartest;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.Toast;

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) {

//添加菜单项

getMenuInflater().inflate(R.menu.menu, menu);

return super.onCreateOptionsMenu(menu);

}

//对menu栏进行监听

public boolean onOptionsItemSelected(MenuItem item) {

// TODO Auto-generated method stub

switch (item.getItemId()) {

case R.id.add:

Toast.makeText(this, "add", Toast.LENGTH_SHORT).show();

break;

case R.id.delete:

Toast.makeText(this, "delete", Toast.LENGTH_SHORT).show();

break;

case R.id.save:

Toast.makeText(this, "save", Toast.LENGTH_SHORT).show();

break;

case R.id.help:

Toast.makeText(this, "help", Toast.LENGTH_SHORT).show();

break;

default:

break;

}

return super.onOptionsItemSelected(item);

}

}

//menu/menu.xml

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

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

 

    <item

        android:id="@+id/add"

        android:icon="@android:drawable/ic_menu_add"

        android:showAsAction="ifRoom"

        android:title="@string/add"

        android:titleCondensed="@string/add">

    </item>

    <item

        android:id="@+id/delete"

        android:icon="@android:drawable/ic_menu_delete"

        android:showAsAction="ifRoom"

        android:title="@string/delete"

        android:titleCondensed="@string/delete">

    </item>

     <item

        android:id="@+id/save"

        android:icon="@android:drawable/ic_menu_save"

        android:showAsAction="ifRoom"

        android:title="@string/save"

        android:titleCondensed="@string/save">

    </item>

     <item

        android:id="@+id/help"

        android:icon="@android:drawable/ic_menu_help"

        android:showAsAction="ifRoom"

        android:title="@string/help"

        android:titleCondensed="@string/help">

    </item>

 

</menu>

//values/strings.xml

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

<resources>

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

    <string name="save">保存</string>

    <string name="edit">编辑</string>

<string name="add">增加</string>

<string name="delete">删除</string>

<string name="help">帮助</string>

    

</resources>

//截图如下