Android-Menu[使用C#AndJava实现]

王朝学院·作者佚名 2016-08-27

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usingAndroid.App;usingAndroid.OS;usingAndroid.Views;usingAndroid.Widget;namespaceMenuDemo

{

[Activity(Label="@string/applicationName", MainLauncher =true, Icon ="@drawable/Icon")]publicclassMainActivity : Activity

{PRotectedoverridevoidOnCreate(Bundle bundle)

{base.OnCreate(bundle);

SetContentView(Resource.Layout.Main);variv = FindViewById<ImageView>(Resource.Id.iv);

iv.SetImageResource(Resource.Drawable.test);

RegisterForContextMenu(iv);

}//与一个活动关联publicoverrideboolOnCreateOptionsMenu(IMenu menu)

{base.OnCreateOptionsMenu(menu);constintmenuItemId =Menu.First;constintmenuItemOrder =Menu.None;constintmunuItemText =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");varsubMenu = menu.AddSubMenu(0, menuItemId +30, menuItemOrder +3,"子菜单");

subMenu.SetHeaderIcon(Resource.Drawable.more);varsubMenuItem1 = subMenu.Add(0, menuItemId +40, menuItemOrder +4,"子菜单-1");

subMenuItem1.SetIcon(Resource.Drawable.more);varsubMenuItem2 = 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);returntrue;

}publicoverrideboolOnOptionsItemSelected(IMenuItem item)

{

Toast.MakeText(this,"当前菜单编号"+item.ItemId, ToastLength.Long).Show();returnbase.OnOptionsItemSelected(item);

}publicoverridevoidOnCreateContextMenu(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");varsubMenu = menu.AddSubMenu("子菜单");

subMenu.Add("子菜单选项");

}

Layout<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns: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"><ImageViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:id="@+id/iv"/></LinearLayout>

运行效果

Java实现packagecom.example.halower.menudemo;importandroid.app.Activity;importandroid.os.Bundle;importandroid.view.ContextMenu;importandroid.view.MenuInflater;importandroid.view.View;importandroid.widget.ImageView;publicclassMainActivityextendsActivity {

@OverrideprotectedvoidonCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ImageView iv=(ImageView)findViewById(R.id.iamgeView);

iv.setImageResource(R.drawable.test);

registerForContextMenu(iv);

}

@OverridepublicvoidonCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {super.onCreateContextMenu(menu, v, menuInfo);

MenuInflater inflater=newMenuInflater(this);

inflater.inflate(R.menu.menu_main,menu);

menu.setHeaderIcon(R.drawable.blue);

menu.setHeaderTitle(R.string.menuTitle);

}

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

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

<string name="action_settings">Settings</string>

<string name="menuTitle">XML中解析菜单</string>

</resources>