參考谷歌官網(wǎng)https://developer.android.com/training/appbar/setting-up.html#utility
google圖標(biāo)圖片下載地址：https://design.google.com/icons/
發(fā)現(xiàn)自己建立的Toolbar中沒(méi)有Overflow Menu，查看相關(guān)資料發(fā)現(xiàn)，需要自己新建Menu布局，在Activity中通過(guò)onCreateOptionsMenu(Menu menu)自己加載它

配置文件

<application>android:theme="@style/Theme.AppCompat.Light.NoActionBar" </application>

Toolbar的布局
/res/layout/main_activity.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"xmlns:app="http://schemas.android.com/apk/res-auto"><android.support.v7.widget.Toolbarandroid:id="@+id/my_toolbar"android:layout_width="match_parent"android:layout_height="?attr/actionBarSize"android:background="?attr/colorPrimary"android:elevation="4dp"app:theme="@style/ThemeOverlay.AppCompat.ActionBar"app:popupTheme="@style/ThemeOverlay.AppCompat.Light"></android.support.v7.widget.Toolbar></RelativeLayout>

菜單項(xiàng)
/res/menu/toolbar_menu.xml

<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"android:id="@+id/action_bar_menu"android:layout_width="match_parent"android:layout_height="match_parent"><item android:id ="@+id/search"android:icon="@drawable/ic_action_search"android:title="search"app:showAsAction="ifRoom" /><item android:id="@+id/copy"android:icon="@drawable/ic_action_copy"android:title="copy"app:showAsAction="ifRoom"/><item android:id="@+id/cut"android:title="cut"app:showAsAction="never"/></menu>

注意：app:showAsAction若為ifRoom則，作為app bar的按鈕，若為never則為overflow menu中的選項(xiàng)，若app bar中的空間不足，則會(huì)將超出的部分全部放入overflow menu中

官方解釋：
【The app:showAsAction attribute specifies whether the action should be shown as a button on the app bar. If you set app:showAsAction=”ifRoom” (as in the example code’s favorite action), the action is displayed as a button if there is room in the app bar for it; if there is not enough room, excess actions are sent to the overflow menu. If you set app:showAsAction=”never” (as in the example code’s settings action), the action is always listed in the overflow menu, not displayed in the app bar. 】

MainActivity.java

package com.app.bt;import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem;public class MainActivity extends AppCompatActivity{private Toolbar mToolbar;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mToolbar = (Toolbar) findViewById(R.id.my_toolbar);mToolbar.setTitle("ToolbarTest");setSupportActionBar(mToolbar);mToolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {@Overridepublic boolean onMenuItemClick(MenuItem item) {return false;}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {MenuInflater inflater = getMenuInflater();inflater.inflate(R.menu.main_activity_actions,menu);return super.onCreateOptionsMenu(menu);} }

參考文章
[1]http://blog.csdn.net/suppercoder/article/details/10212875
[2]http://blog.sina.com.cn/s/blog_4e1e357d0102ylri.html
[3]http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2014/1118/2006.html

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