<UWP> Debug LOG、休眠、线程、定时器

最新推荐文章于 2020-08-11 19:41:36 发布

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最新推荐文章于 2020-08-11 19:41:36 发布

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分类专栏： Windows 文章标签： UWP

本文链接：https://blog.youkuaiyun.com/Meta_Cpp/article/details/88642142

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Debug LOG

System.Diagnostics.Debug.WriteLine("Debug Info");
System.Diagnostics.Debug.WriteLine("Debug: {0}", debugLine);

UWP 休眠

使用AutoResetEvent 模拟休眠

private void Sleep(int msTime)
{
    AutoResetEvent h = new AutoResetEvent(false);
    h.WaitOne(msTime);
}

UWP 异步线程

不更新UI：


WorkItemHandler workItemHandler;
IAsyncAction m_checkAction;

workItemHandler = new WorkItemHandler((IAsyncAction action) =>
{
    while (action.Status == AsyncStatus.Started)
    {
         // do something UI-unrelated
        Sleep(TimerPeriod * 1000);
    }

});
m_checkAction = ThreadPool.RunAsync(workItemHandler, WorkItemPriority.High, WorkItemOptions.None);

更新UI：

Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
() =>
{
    // Your UI update code goes here!
});

UWP定时器

  
ThreadPoolTimer CheckTimer;

// start timer
TimeSpan delay = TimeSpan.FromSeconds(TimerPeriod);
CheckTimer = ThreadPoolTimer.CreatePeriodicTimer(new TimerElapsedHandler(CheckNetworkStatus), delay);

private async void CheckNetworkStatus(ThreadPoolTimer timer)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.High, () =>
   {
       //
       // UI components can be accessed within this scope.
       //
   });
}

// Cancel Timer
CheckTimer.Cancel();