private async Task StartPreViewAsync()
{
try
{
captureManager = new MediaCapture();
await captureManager.InitializeAsync();
displayRequest.RequestActive();
DisplayInformation.AutoRotationPreferences = DisplayOrientations.Landscape;
}
catch (UnauthorizedAccessException)
{
MyMessageDialogHelper.ShowWebcamErrorMessageAsync();
return;
}
try
{
myCaptureElement.Source = captureManager;
await captureManager.StartPreviewAsync();
_isPreviewing = true;
}
catch (System.IO.FileLoadException)
{
captureManager.CaptureDeviceExclusiveControlStatusChanged += _mediaCapture_CaptureDeviceExclusiveControlStatusChanged;
}
}
private async void _mediaCapture_CaptureDeviceExclusiveControlStatusChanged(MediaCapture sender, MediaCaptureDeviceExclusiveControlStatusChangedEventArgs args)
{
if (args.Status == MediaCaptureDeviceExclusiveControlStatus.SharedReadOnlyAvailable)
{
MyMessageDialogHelper.ShowWebcamErrorMessageAsync("摄像头初始化失败，摄像头正在被其他应用使用");
}
else if (args.Status == MediaCaptureDeviceExclusiveControlStatus.ExclusiveControlAvailable && !_isPreviewing)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
await StartPreViewAsync();
});
}
}
private void Btn_AddDevice_Tapped(object sender, TappedRoutedEventArgs e)
{
Device NewDevice = new Device
{
Name = "MyDevice",
ImagePath = "ms-appx:///Assets/Device/Plug_130.png",
Pin = Device.PinsEnum.D0
};
if (LB_Rooms.SelectedIndex > -1)
{
MainPage.MyHome.Rooms[LB_Rooms.SelectedIndex].AddDevice(NewDevice);
}
else
{
MyMessageDialogHelper.ShowNormalErrorMessageAsync("请选择一个房间！");
}
// Only update device listboc
UpdateListBox(2);
}
private async void Page_Loaded(object sender, RoutedEventArgs e)
{
WeatherpagePrograssRing.IsActive = true;
WeatherpagePrograssRing.Visibility = Visibility.Visible;
TempHighFontIcon.Visibility = Visibility.Collapsed;
TempLowFontIcon.Visibility = Visibility.Collapsed;
AqiTblock.Visibility = Visibility.Collapsed;
if (MyNetHelper.IsNetAdapterWork() != true)
{
var dialog = new MessageDialog("请检查网络适配器是否打开且正常工作", "网络适配器错误");
await dialog.ShowAsync();
}
else if (MyNetHelper.IsNetConnected() != true)
{
var dialog = new MessageDialog("请联系当地网络运营服务商", "网络连接错误");
await dialog.ShowAsync();
}
else
{
if (geoposition == null)
{
try
{
geoposition = await MyGeopositionHelper.GetGeopositionasync();
if (geoposition != null)
{
IsUnauthorizedAccess = false;//
}
}
catch (System.UnauthorizedAccessException)
{
MyMessageDialogHelper.ShowUnauthorizedAccessMessageAsync();
}
if (IsUnauthorizedAccess == false && Pageloadnum != 0) //如果不是第一次访问
{
if (LastHourOfTime - System.DateTime.Now.Date.Hour > 2) //时间距离上次访问是否大于2小时
{
rootObject = await MyWeatherHelper.GetWeatherRootObjectAsync(APIkey, geoposition.Coordinate.Point.Position.Latitude, geoposition.Coordinate.Point.Position.Longitude);
Pageloadnum++;
LastHourOfTime = System.DateTime.Now.Date.Hour;
}
}
else
{
rootObject = await MyWeatherHelper.GetWeatherRootObjectAsync(APIkey, 39.088, 117.696184);
Pageloadnum++;
}
}
if (rootObject.msg != "ok")
{
MyMessageDialogHelper.ShowApiErrorMessageAsync(rootObject.status, rootObject.msg);
}
else
{
todayWeather.CityName = rootObject.result.city; //天津
todayWeather.Temp = rootObject.result.temp + "°"; //23
todayWeather.TempHigh = rootObject.result.temphigh + "°"; //30
todayWeather.TempLow = rootObject.result.templow + "°"; //10
todayWeather.WeatherDescription = rootObject.result.weather; //小雨
todayWeather.LastUpdateTime = rootObject.result.updatetime; //2018-04-12
todayWeather.AirQualityIndex = rootObject.result.aqi.aqi; //83
todayWeather.AqiLevel = "级别:" + rootObject.result.aqi.quality; //良
//todayWeather.Icon = $"ms-appx:///Assets/weathercn02/{rootObject.result.img}.png"; //0.png
todayWeather.Icon = string.Format($"ms-appx:///Assets/weathercn02/{rootObject.result.img}.png");
todayWeather.AqiColor = rootObject.result.aqi.aqiinfo.color; //#FF7E00
todayWeather.Humidity = "湿度:" + rootObject.result.humidity + "％"; //83
DaliyWeatherListView.ItemsSource = DaliyWeather.GetWeathers(rootObject);
}
WeatherpagePrograssRing.IsActive = false;
WeatherpagePrograssRing.Visibility = Visibility.Collapsed;
TempHighFontIcon.Visibility = Visibility.Visible;
TempLowFontIcon.Visibility = Visibility.Visible;
AqiTblock.Visibility = Visibility.Visible;
}
}
