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大家好，首先感谢您的关注和支持。我是弹性世界的初学者......我想做的事情可能太容易了，但我无法弄清楚。

我正在练习一个简单的移动应用程序，它利用数据库在 phpmyadmin 中创建并连接到我的移动项目。我想要做的是：当我单击任何列表项时，会弹出下一个视图，显示数据库表中所有文本输入中所选项目的值。我知道如何在我正在实现列表的视图中显示它，但是我收到一个错误，因为我在另一个视图中没有（也不想）列表项：

protected function list_changeHandler(event:IndexChangeEvent):void
        {
            titleTextInput.text = list.selectedItem.title;
            dateIntro.selectedDate = list.selectedItem.date;
            photoTextInput.text = list.selectedItem.photo;
            descriptionTextInput.text = list.selectedItem.description;
        }

但是我需要做什么才能在我的其他观点中获得相同的结果？

该项目有2个视图，

这是第一个视图

<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:s="library://ns.adobe.com/flex/spark"
    xmlns:valueObjects="valueObjects.*"
    xmlns:detallesservice="services.detallesservice.*" add="home(event)">

<fx:Script>
    <![CDATA[
        import mx.events.FlexEvent;

        import spark.events.IndexChangeEvent;
        protected function button_clickHandler(event:MouseEvent):void
        {
            var detalles2:Detalles = new Detalles();
            detalles2.title = titleTextInput.text;
            detalles2.date = dateIntro.selectedDate;
            detalles2.photo = photoTextInput.text;
            detalles2.description = descriptionTextInput.text;

            detallesService.createDetalles(detalles2);
            detallesService.getAllDetalles();
        }

        protected function list_creationCompleteHandler(event:FlexEvent):void
        {
            getAllDetallesResult2.token = detallesService.getAllDetalles();
        }


        protected function button2_clickHandler(event:MouseEvent):void
        {
            detallesService.deleteDetalles(list.selectedItem.title);
        }

        protected function list_changeHandler(event:IndexChangeEvent):void
        {
            titleTextInput.text = list.selectedItem.title;
            dateIntro.selectedDate = list.selectedItem.date;
            photoTextInput.text = list.selectedItem.photo;
            descriptionTextInput.text = list.selectedItem.description;

            navigator.pushView(asyouwishView, list.selectedItem);
        }
    ]]>
</fx:Script>

<fx:Declarations>
    <valueObjects:Detalles id="detalles"/>
    <detallesservice:DetallesService id="detallesService"/>
    <s:CallResponder id="createDetallesResult"/>
    <s:CallResponder id="getAllDetallesResult2"/>
    <s:CallResponder id="deleteDetallesResult"/>
</fx:Declarations>
<s:List id="list" x="1100" y="142" width="716" height="372"
        creationComplete="list_creationCompleteHandler(event)" labelField="title" change="list_changeHandler(event)">
    <s:AsyncListView list="{getAllDetallesResult2.lastResult}"/>
</s:List>
<s:Form defaultButton="{button}">
    <s:FormItem label="Title">
        <s:TextInput id="titleTextInput" text="{detalles.title}"/>
    </s:FormItem>
    <s:FormItem width="800" label="Date">
        <s:DateSpinner id="dateIntro" displayMode="date" selectedDate="{detalles.date}"/>
    </s:FormItem>
    <s:FormItem label="Photo">
        <s:TextInput id="photoTextInput" text="{detalles.photo}"/>
    </s:FormItem>
    <s:FormItem label="Description">
        <s:TextInput id="descriptionTextInput" text="{detalles.description}"/>
    </s:FormItem>
    <s:Button id="button" label="CreateDetalles" click="button_clickHandler(event)"/>
</s:Form>
<s:Form x="18" y="950">
    <s:FormItem label="CreateDetalles">
        <s:TextInput id="createDetallesTextInput"
                     text="{createDetallesResult.lastResult as String}"/>
    </s:FormItem>
</s:Form>
<s:Button id="myDelete" x="1100" y="558" label="Delete" click="button2_clickHandler(event)"/>

这是第二种观点： 

<fx:Script>
    <![CDATA[
        import spark.events.ViewNavigatorEvent;
        protected function button_clickHandler(event:MouseEvent):void
        {
            // Please uncomment the below line if Data Management is enabled for Detalles and updateDetalles is used as the create function.
            // var detalles:Detalles = new Detalles();
            detalles.title = titleTextInput.text;
            detalles.date = dateIntro.selectedDate;
            detalles.photo = photoTextInput.text;
            detalles.description = descriptionTextInput.text;

            updateDetallesResult.token = detallesService.updateDetalles(detalles);
        }
    ]]>
</fx:Script>

<fx:Declarations>
    <valueObjects:Detalles id="detalles"/>
    <detallesservice:DetallesService id="detallesService"/>
    <s:CallResponder id="updateDetallesResult"/>
</fx:Declarations>

<s:actionContent>
    <s:Button label="BACK" click="{navigator.popView();}"/>
</s:actionContent>

<s:Form x="70" y="68" defaultButton="{button}">
    <s:FormItem label="Title">
        <s:TextInput id="titleTextInput" text="@{detalles.title}"/>
    </s:FormItem>
    <s:FormItem width="766" label="Date">
        <s:DateSpinner id="dateIntro" displayMode="date" selectedDate="@{detalles.date}"/>
    </s:FormItem>
    <s:FormItem label="Photo">
        <s:TextInput id="photoTextInput" text="@{detalles.photo}" />
    </s:FormItem>
    <s:FormItem label="Description">
        <s:TextInput id="descriptionTextInput" text="@{detalles.description}"/>
    </s:FormItem>
    <s:Button id="button" label="UpdateDetalles" click="button_clickHandler(event)"/>
</s:Form>

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1 回答 1

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学习和使用框架是必要的。我推荐Swizframework。

Swiz 中的数据绑定和事件轻而易举。你会喜欢的。

于 2012-10-29T08:46:38.493 回答