Chapter II Example: Android Window menu display

 PackageTest.main.cls;ImportCOM.EXAMPLE.POPUPWINDOW.R;Importandroid.app.Activity;ImportAndroid.os.Bundle;ImportAndroid.view.ContextMenu;ImportAndroid.view.ContextMenu.ContextMenuInfo;Importandroid.view.Gravity;ImportAndroid.view.Menu;ImportAndroid.view.MenuItem;ImportAndroid.view.SubMenu;ImportAndroid.view.View;ImportAndroid.view.View.OnClickListener;ImportAndroid.view.ViewGroup;ImportAndroid.view.ViewGroup.LayoutParams;ImportAndroid.widget.Button;ImportAndroid.widget.PopupMenu;ImportAndroid.widget.PopupMenu.OnMenuItemClickListener;ImportAndroid.widget.PopupWindow;ImportAndroid.widget.Toast; Public classPopupwindowsextendsActivity {@Override Public voidOncreatecontextmenu (ContextMenu menu, View V, contextmenuinfo menuinfo) {Menu.setheadericon (R.draw        Able.ic_launcher); Submenu submenu= Menu.addsubmenu ("system fix");//This method returns the submenu interface object, presumably the menu implements the submenu interfaceSubmenu.add (0, 0, 0, "Auto Fix"). SetIcon (R.drawable.ic_launcher); Submenu.add (0, 1, 0, "Repair external memory"). SetIcon (R.drawable.ic_launcher); Submenu.add (0, 2, 0, "Repair hardware"). SetIcon (R.drawable.ic_launcher); //------------------------------------------Menu.setheadericon (R.drawable.ic_launcher); submenu submenus= Menu.addsubmenu ("global Fix");//This method returns the submenu interface object, presumably the menu implements the submenu interfaceSubmenus.add (0, 0, 0, "full repair"). SetIcon (R.drawable.ic_launcher); Submenus.add (0, 1, 0, "non-destructive repair"). SetIcon (R.drawable.ic_launcher); Submenus.add (0, 2, 0, "perfect fix"). SetIcon (R.drawable.ic_launcher); Super. Oncreatecontextmenu (menu, V, menuinfo); } @Override Public BooleanOncreateoptionsmenu (Menu menu) {submenu submenu= Menu.addsubmenu ("Destruction system");//This method returns the submenu interface object, presumably the menu implements the submenu interfaceSubmenu.add (0, 0, 0, "total destruction"). SetIcon (R.drawable.ic_launcher); Submenu.add (0, 1, 0, "Destroy external memory"). SetIcon (R.drawable.ic_launcher); Submenu.add (0, 2, 0, "hardware Destruction"). SetIcon (R.drawable.ic_launcher); //submenu.add (0, 4, 0, "destruction battery"). SetIcon (R.drawable.ic_launcher). Setintent (/*intent*/); //submenu.add (0, 3, 0, "destruction screen"). Setshortcut (' F ', ' 5 '); //submenu.setgroupcheckable (0, True, true); whether the button group can be checked//-----------------------------------------submenu submenu1 = Menu.addsubmenu ("Send scam Information"); Submenu1.add (0, 0, 0, "Send to all Friends"); Submenu1.add (0, 1, 0, "Send to nearest contact"); Submenu1.add (0, 2, 0, "random send"); Submenu1.add (0, 3, 0, "Send Abroad"); return Super. Oncreateoptionsmenu (menu); } @Override Public voidonoptionsmenuclosed (Menu menu) {//TODO auto-generated Method Stub        Super. onoptionsmenuclosed (menu); } @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); View Contentv= This. Getlayoutinflater (). Inflate (R.layout.main_layout,NULL);  This. Setcontentview (CONTENTV); //-------------------------------------------Button BTN =(Button) Findviewbyid (R.ID.CLICKSSSS); FinalPopupMenu Pmenu =NewPopupMenu (popupwindows. This, BTN);  This. Getmenuinflater (). Inflate (R.menu.popup_menu, Pmenu.getmenu ()); Btn.setonclicklistener (NewOnclicklistener () {@Override Public voidOnClick (View v) {pmenu.show ();        }        }); Pmenu.setonmenuitemclicklistener (NewOnmenuitemclicklistener () {@Override Public BooleanOnmenuitemclick (MenuItem Item) {Toast.maketext (popupwindows. This, Item.gettitle (), Toast.length_long). Show (); return true;        }        }); ///------------------------------------------        //Note: Findviewbyid requires setcontentview after use         This. Registerforcontextmenu (CONTENTV);//to a View binding context menu}}

Xml:
 main_layout<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "/http Schemas.android.com/apk/res/android "    android:layout_width=" Match_parent "    android:layout_ Height= "match_parent"    android:orientation= "vertical" >    <button         Android:id = "@+id/clickssss"        android:layout_width= "Match_parent"        android:layout_height = "Wrap_content"        android:text= "Eject"/></linearlayout>

xml: // menu/popup_menu.xml<?xml version= "1.0" encoding= "Utf-8"? ><menu xmlns:android= "/http Schemas.android.com/apk/res/android ">    <group android:checkablebehavior=" None ">        <item Android : id= "@+id/menu_1"            android:title= "This is a popup menu"/>        <item android:id= "@+id/menu_2"             Android:title= "Its usage is also very simple"/>        <item android:id= "@+id/menu_3"            android:title= " Control use is not the focus "/>        <item android:id=" @+id/menu_4 "            android:title=" Focus is to understand the code "/>                 </ Group></menu>

Chapter II Example: Android Window menu display