本文实例讲述了Android中ContextMenu用法。分享给大家供大家参考。具体如下：

main.xml文件如下：

Android:orientation="vertical"

Android:layout_width="fill_parent"

Android:layout_height="fill_parent"

>

Android:id="@android:id/list"

Android:layout_width="fill_parent"

Android:layout_height="fill_parent">

simple_list_item_1.xml文件如下：

xmlns:Android="http://schemas.android.com/apk/res/android"

Android:layout_width="wrap_content"

Android:layout_height="wrap_content"

Android:orientation="vertical">

Android:id="@+id/label"

Android:layout_width="fill_parent"

Android:layout_height="wrap_content"

Android:textSize="30sp">

MenuDemoActivity.java如下：

package com.yyl;

import Android.app.ListActivity;

import Android.os.Bundle;

import Android.view.ContextMenu;

import Android.view.ContextMenu.ContextMenuInfo;

import Android.view.Menu;

import Android.view.MenuItem;

import Android.view.View;

import Android.widget.ArrayAdapter;

public class MenuDemoActivity extends ListActivity {

public static final int EIGHT_ID = Menu.FIRST+1;

public static final int SIXTEEN_ID = Menu.FIRST+2;

public static final int TWENTY_FOUR_ID = Menu.FIRST+3;

public static final int TWO_ID = Menu.FIRST+4;

public static final int THIRTY_TWO_ID = Menu.FIRST+5;

public static final int FORTY_ID = Menu.FIRST+6;

public static final int ONE_ID = Menu.FIRST+7;

String[] items={"lorem", "ipsum", "dolor", "sit", "amet",

"consectetuer", "adipiscing", "elit", "morbi", "vel",

"ligula", "vitae", "arcu", "aliquet", "mollis",

"etiam", "vel", "erat", "placerat", "ante",

"porttitor", "sodales", "pellentesque", "augue", "purus"};

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

setListAdapter(new ArrayAdapter(this,R.layout.simple_list_item_1,R.id.label,items));

//注册ContextView到view中

registerForContextMenu(getListView());

}

//重写该方法，生成ContextMenu菜单

@Override

public void onCreateContextMenu(ContextMenu menu, View v,

ContextMenuInfo menuInfo) {

this.populateMenu(menu);

super.onCreateContextMenu(menu, v, menuInfo);

}

private void populateMenu(Menu menu) {

menu.add(Menu.NONE, ONE_ID, Menu.NONE, "1 Pixel");

menu.add(Menu.NONE, TWO_ID, Menu.NONE, "2 Pixels");

menu.add(Menu.NONE, EIGHT_ID, Menu.NONE, "8 Pixels");

menu.add(Menu.NONE, SIXTEEN_ID, Menu.NONE, "16 Pixels");

menu.add(Menu.NONE, TWENTY_FOUR_ID, Menu.NONE, "24 Pixels");

menu.add(Menu.NONE, THIRTY_TWO_ID, Menu.NONE, "32 Pixels");

menu.add(Menu.NONE, FORTY_ID, Menu.NONE, "40 Pixels");

}

}

希望本文所述对大家的Android程序设计有所帮助。