我正在尝试我的第一个flex应用程序。并且在将数据从xml http服务添加到datagid时遇到问题。
我的xml文件如下所示:
<players>
<player>
<name>test</name>
<status>F</status>
<claimed>1</claimed>
</player>
<player>
<name>meta</name>
<status>F</status>
<claimed>1</claimed>
</player>
</players>
首先,我尝试以原始方式填充数据,因此为HTTP服务创建了mxml标记,并添加了处理程序。
但很快我意识到主应用程序文件变得不可读(因为代码量很大),所以我决定以某种方式组织它。
所以决定用一个单独的类替换服务。
我的新代码如下:
MXML:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute" creationComplete="main()" height="756" borderColor="#FFFFFF" width="950" top="10" left="10" horizontalAlign="left" verticalAlign="top" backgroundGradientAlphas="[1.0, 1.0]" backgroundGradientColors="[#FCFCFC, #FCFCFC]">
<mx:Panel width="900" height="727" layout="absolute" title="Игра ГО" horizontalAlign="center" horizontalCenter="0" top="10">
<mx:Script>
<![CDATA[
import goclient.ListOfPlayers;
import goclient.usersList;
import goclient.Tester;
import mx.controls.Alert;
// And makes periodical requests to the server
[Bindable]
public var users:ListOfPlayers;
[Bindable]
public var test:Tester;
public function main():void{
test = new Tester();
users = new ListOfPlayers();
}
]]>
</mx:Script>
<mx:DataGrid doubleClickEnabled="true" dataProvider="{users.getPlayersList()}"
x="10" y="157" width="860" height="520" id="userList">
<mx:columns>
<mx:DataGridColumn dataField="claimed" headerText="Was claimed" width="25"/>
<mx:DataGridColumn dataField="name" headerText="Name of the player" />
<mx:DataGridColumn dataField="status" headerText="Status (Free or Busy)" />
</mx:columns>
</mx:DataGrid>
服务类:
ListOfPlayers.as
package goclient
{
import flash.utils.Timer;
import mx.controls.Alert;
import mx.collections.ArrayCollection;
import mx.rpc.events.ResultEvent;
import mx.rpc.http.mxml.HTTPService;
public class ListOfPlayers
{
public var usersListService:HTTPService;
private var minTimer:Timer = new Timer(100000, 0);
private var playersData:ArrayCollection;
private var person:currentPerson;
public function ListOfPlayers()
{
usersListService = new HTTPService();
usersListService.url = "http://127.0.0.1:8000/go/active/";
usersListService.addEventListener(ResultEvent.RESULT, resultHandler);
//Alert.show("Here");
sendData();
//minTimer.addEventListener(TimerEvent.TIMER, sendData);
//minTimer.start();
}
public function getResp():String
{
return "Resr";
}
public function resultHandler(event:ResultEvent):void
{
//person = new currentPerson(event.result.current.username, event.result.current.img, event.result.current.rank);
playersData = event.result.players.player;
Alert.show("resh");
}
public function sendData():void
{
usersListService.send();
}
public function getPlayersList():ArrayCollection
{
Alert.show(playersData.toString());
return playersData;
}
}
}
问题是数据网格中没有显示任何内容
我只是一个初学者,所以请告诉我错误的课程
答案 0 :(得分:2)
结果函数(在ListOfPlayers类中)应该给出播放器列表而不是调用webservice的函数。
您可以做的是在服务器类中添加它:
[Bindable]
public var playersData:ArrayCollection;
并在您的视图中添加此变量和可绑定标记,并在main()中设置值添加此行: playersData = users.playersData;
然后datagrid dataprovider是“{playersData}”
这应该有效。但是对于XML列表,要知道你在树中的深度总是有点困难;)