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我已成功设置StageWebViewBridge以在我的AIR应用程序和Web托管JavaScript之间进行通信。然而有时,当我启动应用程序时引发以下错误:StageWebViewBridge间歇初始化
_serializeObject =>___onDomReady
_serializeObject =>fnCalledFromJS
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at es.xperiments.media::StageWebViewBridgeExternal/parseCallBack()[Flash/es/xperiments/media/StageWebViewBridgeExternal.as:88]
at es.xperiments.media::StageWebViewBridge/onLocationChange()[Flash/es/xperiments/media/StageWebViewBridge.as:236]
如果应用程序成功发射,这是跟踪输出。
_serializeObject =>___onDomReady
_serializeObject =>___getFilePaths
_serializeObject =>___onDeviceReady
_serializeObject =>fnCalledFromJS
所以看起来注册fnCalledFromJS回调有时被称为太早。
这里是我的代码的事件序列:
StageWebViewDisk.addEventListener(StageWebviewDiskEvent.END_DISK_PARSING, onInit);
StageWebViewDisk.setDebugMode(false);
StageWebViewDisk.initialize(stage);
function onInit(e:StageWebviewDiskEvent):void{
webView1 = new StageWebViewBridge(19, 43, 400, 262);
webView1.addEventListener(StageWebViewBridgeEvent.DEVICE_READY, onDeviceReady);
webView1.loadURL("http:www.domain.com/ipadMap.php);
}
function onDeviceReady(e:StageWebViewBridgeEvent):void {
webView1.addCallback('fnCalledFromJS', fnCalledFromJS);
// all is loaded and ok, show the view
addChild(webView1);
}
有没有人知道如何防止错误被抛出?
感谢,
马克