Android仿微信菜单(Menu)（使用C#和Java分别实现）

本篇是对安卓菜单使用编程方式实现，当然可以使用xml的方式完成同样的功能，基本java和c#写法都是一致的，所以使用xml的方式在本篇中使用java演示，需要注意的是，对于如果不是vs开发的话，那么资源文件名称必须以小写开头，否则会报错。

运行效果

c#实现

using android.app;
using android.os;
using android.views;
using android.widget;

namespace menudemo
{
  [activity(label = "@string/applicationname", mainlauncher = true, icon = "@drawable/icon")]
  public class mainactivity : activity
  {
    protected override void oncreate(bundle bundle)
    {
      base.oncreate(bundle);

      setcontentview(resource.layout.main);
      var iv = findviewbyid<imageview>(resource.id.iv);
      iv.setimageresource(resource.drawable.test);
      registerforcontextmenu(iv);
    }
    //与一个活动关联
    public override bool oncreateoptionsmenu(imenu menu)
    {
      base.oncreateoptionsmenu(menu);
      const int menuitemid = menu.first;
      const int menuitemorder = menu.none;
      const int munuitemtext = resource.string.menuitem1;
      /*
       * 第一个参数：组值
       * 第二个参数：菜单唯一标示
       * 第三个参数：顺序参数
       * 第四个参数：文本
       */
      menu.add(1, menuitemid, menuitemorder, munuitemtext);
      menu.add(2, menuitemid + 10, menuitemorder + 1, "菜单2");
      menu.add(2, menuitemid + 20, menuitemorder + 2, "菜单3" );
      var submenu = menu.addsubmenu(0, menuitemid + 30, menuitemorder + 3, "子菜单" );
      submenu.setheadericon(resource.drawable.more);
      var submenuitem1 = submenu.add(0, menuitemid + 40, menuitemorder + 4,"子菜单-1" );
      submenuitem1.seticon(resource.drawable.more);
      var submenuitem2 = submenu.add(0, menuitemid + 50, menuitemorder + 5,"子菜单-2" ).setcheckable(true);
      submenuitem2.seticon(resource.drawable.blue);
      submenu.add(0, menuitemid + 60, menuitemorder + 6, "子菜单-3" ).setcheckable(true);
      return true;
    }

    public override bool onoptionsitemselected(imenuitem item)
    {
      toast.maketext(this, "当前菜单编号" + item.itemid, toastlength.long).show();
      return base.onoptionsitemselected(item);
    }


    public override void oncreatecontextmenu(icontextmenu menu, view v, icontextmenucontextmenuinfo menuinfo)
    {
      base.oncreatecontextmenu(menu, v, menuinfo);
      menu.setheadertitle("上下文菜单");
      menu.setheadericon(resource.drawable.blue);
      menu.add(0, menu.first, menu.none, "菜单1");
      menu.add(0, menu.first+1,menu.none, "菜单2").setshortcut('2','b');
      menu.add(0, menu.first + 2, menu.none, "菜单3");
      var submenu = menu.addsubmenu("子菜单");
      submenu.add("子菜单选项");
    }
  }
}

layout

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:minwidth="25px"
  android:minheight="25px">
  <imageview
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/iv" />
</linearlayout>

运行效果

java实现

package com.example.halower.menudemo;

import android.app.activity;
import android.os.bundle;
import android.view.contextmenu;
import android.view.menuinflater;
import android.view.view;
import android.widget.imageview;


public class mainactivity extends activity {

  @override
  protected void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    setcontentview(r.layout.activity_main);
    imageview iv=(imageview)findviewbyid(r.id.iamgeview);
    iv.setimageresource(r.drawable.test);
    registerforcontextmenu(iv);
  }

  @override
  public void oncreatecontextmenu(contextmenu menu, view v, contextmenu.contextmenuinfo menuinfo) {
    super.oncreatecontextmenu(menu, v, menuinfo);
    menuinflater inflater=new menuinflater(this);
    inflater.inflate(r.menu.menu_main,menu);
    menu.setheadericon(r.drawable.blue);
    menu.setheadertitle(r.string.menutitle);
  }
}

layout

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

  <string name="app_name">menudemo</string>
  <string name="action_settings">settings</string>
  <string name="item1name" >菜单1</string>
  <string name="item2name" >菜单2</string>
  <string name="item3name" >菜单3--more</string>
  <string name="item4name" >菜单4</string>
  <string name="menutitle">xml中解析菜单</string>
  <string name="subitem1name">子菜单1</string>
  <string name="subitem2name">子菜单2</string>
</resources>