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c# - cortana 调用导致启动时崩溃

转载 作者:太空狗 更新时间:2023-10-29 22:26:12 26 4
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我有一个 Windows Phone 8.1 通用应用程序,我正在努力为它添加基本的 Cortana 支持。许多关于此的文章都是针对 Silverlight 等的。我发现很难找到关于此的真正好的信息。

到目前为止,如果应用程序已经在运行或暂停,我可以激活。但是,如果应用程序完全退出,则在激活后它会立即崩溃。我已经尝试使用 Hockey 和一个简单的“LittleWatson”例程来捕捉崩溃,但它似乎发生得太快而无法被捕捉到。我已经看到一些关于进行私有(private)测试版并尝试获取故障转储的引用资料,但到目前为止我还没有运气。

这是我的激活码在 app.xaml.cs 中的样子:

    protected override void OnActivated(IActivatedEventArgs args) {
base.OnActivated(args);
ReceivedSpeechRecognitionResult = null;
if (args.Kind == ActivationKind.VoiceCommand) {
var commandArgs = args as VoiceCommandActivatedEventArgs;
if (commandArgs != null) {
ReceivedSpeechRecognitionResult = commandArgs.Result;
var rootFrame = Window.Current.Content as Frame;
if (rootFrame != null) {
rootFrame.Navigate(typeof(CheckCredentials), null);
}
}
}
}

这是我对命令结果的检查:

    private async Task CheckForVoiceCommands() {
await Task.Delay(1); // not sure why I need this
var speechRecognitionResult = ((App)Application.Current).ReceivedSpeechRecognitionResult;
if (speechRecognitionResult == null) {
return;
}
var voiceCommandName = speechRecognitionResult.RulePath[0];

switch (voiceCommandName) {
// omitted
}

((App)Application.Current).ReceivedSpeechRecognitionResult = null;
}

通过插入消息等,我很确定它在到达这里之前很久就失败了。

我可能缺少一些简单的东西,但我不知道是什么......

是什么导致这么早崩溃?

编辑 我尝试的一件事是使用“不启动调试”配置来 try catch 异常。当我这样做时,应用程序似乎在启动画面上的调试器中永远挂起。然而,这确实让我强行休息了。它卡在

global::Windows.UI.Xaml.Application.Start((p) => new App());

据我所知,这只是告诉我该应用程序卡在某处。这是调用堆栈中唯一的一行。

最佳答案

将一段 OnLaunched 代码复制到 OnActivated 中,如下例所示。激活应用程序时不会调用 OnLaunched,它会执行一些基本工作,例如激活窗口。

protected override void OnActivated(IActivatedEventArgs args)
{
// When a Voice Command activates the app, this method is going to
// be called and OnLaunched is not. Because of that we need similar
// code to the code we have in OnLaunched
Frame rootFrame = Window.Current.Content as Frame;
 
if (rootFrame == null)
{
rootFrame = new Frame();
rootFrame.CacheSize = 1;
Window.Current.Content = rootFrame;
rootFrame.Navigate(typeof(MainPage));
}
 
Window.Current.Activate();
 
// For VoiceCommand activations, the activation Kind is ActivationKind.VoiceCommand
if(args.Kind == ActivationKind.VoiceCommand)
{
// since we know this is the kind, a cast will work fine
VoiceCommandActivatedEventArgs vcArgs = (VoiceCommandActivatedEventArgs)args;
 
// The NavigationTarget retrieved here is the value of the Target attribute in the
// Voice Command Definition xml Navigate node
string target = vcArgs.Result.SemanticInterpretation.Properties["NavigationTarget"][0];

关于c# - cortana 调用导致启动时崩溃,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27975837/

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