如何在Flex移动项目中显示本地PDF？ [英] How to display local PDF in Flex Mobile Project?

问题描述

我正在运行Flex移动项目，我希望我的移动应用程序能够加载和显示本地保存的PDF文件。我不想出去访问这些pdf文件。

我无法弄清楚如何使这个代码适用于本地保存的文件。

错误MSG：错误＃2044：未处理的ErrorEvent :. text =载入错误。

有没有人有一个建议？

谢谢！

 <？xml version =1.0encoding =utf-8？> 
< s：查看xmlns：fx =http://ns.adobe.com/mxml/2009
 xmlns：s =library：//ns.adobe.com/flex/spark 
 overlayControls =truetitle =PDF Display
 viewActivate =view1_viewActivateHandler（event）
 viewDeactivate =removeStageWebViewHandler（event）> 
 
< fx：Script> 
<！[CDATA [
 import mx.events.FlexEvent; 
导入spark.events.ViewNavigatorEvent; 
 
 private var myWebView：StageWebView; 
 $ b保护功能view1_viewActivateHandler（event：ViewNavigatorEvent）：void {
 myWebView = new StageWebView（）; 
 myWebView.viewPort = new Rectangle（5,60，stage.stageWidth-10，stage.stageHeight-140）; 
 myWebView.stage = this.stage; 
 myWebView.loadURL（assets / sample.pdf）; 
 
 $ b覆盖保护函数updateDisplayList（unscaledWidth：Number，unscaledHeight：Number）：void {
 if（myWebView）{
 var point：Point = localToGlobal点（））; 
 myWebView.viewPort = new Rectangle（5,60，stage.stageWidth-10，stage.stageHeight-140）; 
 
 
 $ b保护函数goBackHandler（event：MouseEvent）：void {
 navigator.popToFirstView（）; 
 
 
保护函数removeStageWebViewHandler（event：ViewNavigatorEvent）：void {
 myWebView.stage = null; 
 //只要移除目标，就会离开。 
} 
 
]]> 
< / fx：Script> 
 
< s：actionContent> 
< s：Button label =BACKclick =goBackHandler（event）/> 
< / s：actionContent> 
  
< / s：查看> 
  

解决方案

Android问题实际上是一个基本的Android浏览器操作系统问题。如果您的操作系统支持查看PDF文件，那么您的应用程序的StageWebView也将会在您的应用程序中显示出来，并显示出您的浏览器及其所有功能。 。在Android 1.0 - 3.0中，当您尝试查看PDF时，它将下载文档并将其移到其他应用程序（如Acrobat）上。

离开以执行如下操作：
http://forums.adobe.com/thread/864113

这个问题将会在Android的最新版本中得到解决... 4.0

I am running Flex mobile project and I would like my mobile app to be able to load and display pdf files that are saved locally. I do not want to go out to the web to access these pdf files.

I cant figure out how to make this code work for a locally saved file.

Error MSG: "Error #2044: Unhandled ErrorEvent:. text=Load error."

Does anyone have a suggestion?
Thanks!

<?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"
    overlayControls="true" title="PDF Display"
    viewActivate="view1_viewActivateHandler(event)"
    viewDeactivate="removeStageWebViewHandler(event)">

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

        private var myWebView:StageWebView;

        protected function view1_viewActivateHandler(event:ViewNavigatorEvent):void {
            myWebView = new StageWebView();
            myWebView.viewPort = new Rectangle(5,60,stage.stageWidth-10,stage.stageHeight-140);
            myWebView.stage = this.stage;
            myWebView.loadURL( "assets/sample.pdf");
        }

        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
            if (myWebView) {
                var point:Point = localToGlobal(new Point());
                myWebView.viewPort = new Rectangle(5,60,stage.stageWidth-10,stage.stageHeight-140);
            }
        }  

        protected function goBackHandler(event:MouseEvent):void {   
            navigator.popToFirstView();
        }

        protected function removeStageWebViewHandler(event:ViewNavigatorEvent):void {
            myWebView.stage = null;
            // just remove the target and will leave.
        }

    ]]>
</fx:Script>

<s:actionContent>
    <s:Button label="BACK" click="goBackHandler(event)"/>
</s:actionContent>
<s:Image x="-1" y="2" source="assets/eventsback.jpg"/>

</s:View>

解决方案

The Android Issue is actually a fundamental Android Browsers OS Issue. Think of the AIR StageWebView as a Hole carved out of your app showing you the browser and all its capabilities.

If your OS supports viewing PDFs, then your App's StageWebView will also. on Android 1.0 - 3.0 when you try and view a PDF it will download the doc it and Hand Shake it off onto another application like Acrobat.

leaving to do something like: http://forums.adobe.com/thread/864113

Hopfully this will be fixed in the newest version of Android...4.0

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