Use the ListView to populate the item in the Dialog dialog box

The content of the pop-up dialog is a reminder message, or a selection of "Confirm" and "Cancel", if the item is taken from the outside or a lot of things are done, the following is an introduction to using the ListView to populate the item with a click event!

In fact, the writing is very simple, write a adapter class, call can

<span style= "Font-family:microsoft yahei;font-size:14px;" >package com.example.dialoaglistview;import java.util.list;import Java.util.map;import android.content.Context; Import Android.view.layoutinflater;import Android.view.view;import Android.view.viewgroup;import Android.widget.baseadapter;import Android.widget.textview;public class Dialogitemsadapter extends BaseAdapter{ Private Context context;private list<map<string,object>> listitems;private layoutinflater listContainer; Public Dialogitemsadapter (Context context,list<map<string,object>> listItems) {this.context = context; Listcontainer = Layoutinflater.from (context); this.listitems = ListItems;} Public final class Listitemview{public TextView value;} @Overridepublic int GetCount () {return listitems.size ();} @Overridepublic Object getItem (int position) {if (Position < Listitems.size ()) {return listitems.get (position);} return null;} @Overridepublic long Getitemid (int position) {return position;} @OverridepublicView GetView (int position, view Convertview, ViewGroup parent) {Listitemview Listitemview = new Listitemview (); if (convert View = = null) {Convertview = Listcontainer.inflate (r.layout.listview_item,null); listitemview.value = (TextView) Convertview.findviewbyid (R.id.text_item); Convertview.settag (Listitemview);} else {Listitemview = (Listitemview) Convertview.gettag ();} ListItemView.value.setText (String) listitems.get (position). Get ("value")); return Convertview;}} </span>

then write a separate layout file for the ListView

<span style= "Font-family:microsoft yahei;font-size:14px;" ><?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: Gravity= "Center_horizontal"    android:orientation= "vertical" >        <textview android:id=        "@+id/text_ Item "        android:layout_width=" wrap_content "        android:layout_height=" wrap_content "        android:text=" style self-tuning "        android:textsize=" 20SP "/></linearlayout></span>

The rest is to call this adapter, the main code is as follows

<span style= "Font-family:microsoft yahei;font-size:14px;" >private void Showmydialog () {final String items[] = {"Lecture hall", "Multimedia Classroom", "room", "art Department Classroom", "ordinary Classroom", "training base", "laboratory", "Sports", "Music Department classroom", "Voice Room"}; list<map<string, object>> data = new arraylist<map<string,object>> (); for (int i = 0;i< items.length;i++) {map<string,object> item = new hashmap<string,object> (); Item.put ("Value", items[i]); Data.add (item);} ListView listview= New ListView (this);//Constructs a ListView object. Dialogitemsadapter adapter = new Dialogitemsadapter (this, data); Listview.setadapter (adapter); final Alertdialog alertdialog = new Alertdialog.builder (this). Create (); Alertdialog.setcanceledontouchoutside (false);//Make it possible to click Alertdialog.settitle except for dialog ("Select classroom Type"); Alertdialog.setview (ListView); Alertdialog.show (); Listview.setonitemclicklistener (new Onitemclicklistener () {//              The Click event in response to item in the ListView @Override public void Onitemclick (adapterview<?> arg0, View arg1, int arg2,        Long Arg3) {  TODO auto-generated Method Stub TextView TV = (TextView) arg1. Findviewbyid (R.id.text_item)          ;//Gets the TextView control Textview.settext (Tv.gettext (). toString ()) in each item;      Alertdialog.cancel ();  }  }); }</span>

the items above can be obtained from an external file or from a network, in short, getting more than one item can

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Use the ListView to populate the item in the Dialog dialog box