如何暂停，而不会阻塞UI [英] How to Pause without Blocking the UI

问题描述

我有这将导致手机一旦一个按钮被点击振动的单击事件。这通常顺利，但有时震动犯规停止，直到我完全关闭应用程序。我想给应用程序的时间来完成其振动，然后继续该方法的休息，但我不希望在所有阻止用户界面。我怎么可能做到这一点。

I have a click event which causes the phone to vibrate once a button is clicked. This generally works great, except sometimes the vibration doesnt stop until I completely close the application. I would like to give the application time to complete its vibration and then continue with the rest of the method, but I do not want to block the UI at all. How might I accomplish this

MainPage.xaml.cs中

MainPage.xaml.cs

void newButton_Click(object sender, EventArgs e)
{
    //Button vibration
    if (Settings.EnableVibration.Value)  //boolean flag to tell whether to vibrate or not
    {
        VibrateController.Default.Start(TimeSpan.FromMilliseconds(100));
        //place vibration stop here?
    }        

    this.NavigationService.Navigate(new uri("/NewPage.xaml", UriKind.Relate)); 
}

我已经尝试VibrationController.Default.Stop（）;但这完全消除振动都在一起。有没有办法简单地等到振动已完成，然后导航到一个新的页面，或做任何其他操作方法应该执行？在这个实施或其他任何建议或建议步骤建议？

I have already tried VibrationController.Default.Stop(); but this completely eliminates the vibration all together. Is there a way to simply wait until after the vibration has completed to then navigate to a new page, or do whatever other action the method should perform? Any reccomendations or advice on this implementation or other suggestions?

推荐答案

您可以使用异步性，以防止阻塞UI。而不是实际阻塞UI线程，你需要安排一个动作再次为100ms，从现在​​情况发生。添加continutation到 Task.Delay 电话可以做到这一点：

You can use asynchrony to prevent blocking the UI. Rather than actually blocking the UI thread you need to schedule an action to happen again 100ms from now. Adding a continutation to a Task.Delay call can do just that:

void newButton_Click(object sender, EventArgs e)
{
    Action navigate = () =>
        this.NavigationService.Navigate(new uri("/NewPage.xaml", UriKind.Relate));
    if (Settings.EnableVibration.Value)  //boolean flag to tell whether to vibrate or not
    {
        VibrateController.Default.Start();
        Task.Delay(100).ContinueWith(t =>
        {
            VibrationController.Default.Stop();
            navigate();
        });
    }
    else
        navigate();
}

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