Android学习笔记之PopupMenu弹出菜单

本文主要是介绍Android学习笔记之PopupMenu弹出菜单，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

（1）布局文件：用于弹出菜单的处罚button：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"tools:context=".MainActivity" ><Buttonandroid:id="@+id/button1"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentLeft="true"android:layout_alignParentTop="true"android:layout_marginLeft="96dp"android:layout_marginTop="111dp"android:onClick="showPopup"android:text="弹出菜单" /></RelativeLayout>

（2）res-menu目录下的main.xml文件：

<menu xmlns:android="http://schemas.android.com/apk/res/android" ><itemandroid:id="@+id/open"android:orderInCategory="100"android:showAsAction="never"android:title="@string/open"/><itemandroid:id="@+id/close"android:orderInCategory="100"android:showAsAction="never"android:title="@string/close"/></menu>

（3）类的文件：

package com.example.menu_popupmenu;import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.PopupMenu;public class MainActivity extends Activity {private Button button;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}public void showPopup(View view) {PopupMenu popupMenu = new PopupMenu(MainActivity.this, view);popupMenu.getMenuInflater().inflate(R.menu.main, popupMenu.getMenu());popupMenu.show();}@Overridepublic 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;}}