private async Task <bool> TryStopDialAppAsync(DialApp app)
{
bool stopped = false;
//Get the current application state
DialAppStateDetails stateDetails = await app.GetAppStateAsync();
switch (stateDetails.State)
{
case DialAppState.NetworkFailure:
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser("Network Failure while getting application state", NotifyType.ErrorMessage);
break;
}
case DialAppState.Stopped:
{
stopped = true;
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser("Application was already stopped.", NotifyType.StatusMessage);
break;
}
default:
{
DialAppStopResult result = await app.StopAsync();
if (result == DialAppStopResult.Stopped)
{
stopped = true;
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser("Application stopped successfully.", NotifyType.StatusMessage);
}
else
{
if (result == DialAppStopResult.StopFailed || result == DialAppStopResult.NetworkFailure)
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser(string.Format("Error occured trying to stop application. Status: '{0}'", result.ToString()), NotifyType.StatusMessage);
}
else //in case of DialAppStopResult.OperationNotSupported, there is not much more you can do. You could implement your own
// mechanism to stop the application on that device.
{
stopped = true;
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser(string.Format("Stop is not supported by device: '{0}'", activeDevice.Name), NotifyType.ErrorMessage);
}
}
break;
}
}
return(stopped);
}
private async void Picker_DisconnectButtonClicked(DialDevicePicker sender, DialDisconnectButtonClickedEventArgs args)
{
//Casting must occur from the UI thread. This dispatches the casting calls to the UI thread.
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
try
{
rootPage.NotifyUser(string.Format("Picker DisconnectButtonClicked event fired for device '{0}'", activeDeviceInformation.Name), NotifyType.StatusMessage);
// Get the DialDevice instance for the selected device
DialDevice selectedDialDevice = await DialDevice.FromIdAsync(args.Device.Id);
// Update the picker status
picker.SetDisplayStatus(selectedDialDevice, DialDeviceDisplayStatus.Connecting);
DialApp app = selectedDialDevice.GetDialApp(this.dial_appname_textbox.Text);
//Get the current application state
//DialAppStateDetails stateDetails = await app.GetAppStateAsync();
DialAppStopResult result = await app.StopAsync();
if (result == DialAppStopResult.Stopped)
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser("Application stopped successfully.", NotifyType.StatusMessage);
picker.SetDisplayStatus(args.Device, DialDeviceDisplayStatus.Disconnected);
activeDialDevice = null;
activeDeviceInformation = null;
picker.Hide();
}
else
{
if (result == DialAppStopResult.StopFailed || result == DialAppStopResult.NetworkFailure)
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser(string.Format("Error occured trying to stop application. Status: '{0}'", result.ToString()), NotifyType.StatusMessage);
picker.SetDisplayStatus(args.Device, DialDeviceDisplayStatus.Error);
}
else //in case of DialAppStopResult.OperationNotSupported, there is not much more you can do. You could implement your own
// mechanism to stop the application on that device.
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser(string.Format("Stop is not supported by device: '{0}'", activeDeviceInformation.Name), NotifyType.ErrorMessage);
activeDialDevice = null;
activeDeviceInformation = null;
}
}
}
catch (Exception ex)
{
UnhandledExceptionPage.ShowUnhandledException(ex);
}
});
}
private async void Picker_DisconnectButtonClicked(DialDevicePicker sender, DialDisconnectButtonClickedEventArgs args)
{
// casting 必須在 UI Thread 下執行
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
try
{
// 取得被選擇的 dial device
DialDevice selectedDialDevice = await DialDevice.FromIdAsync(args.Device.Id);
// 更新 picker status
picker.SetDisplayStatus(selectedDialDevice, DialDeviceDisplayStatus.Connecting);
// 取得 dial app
DialApp app = selectedDialDevice.GetDialApp(txtAppName.Text);
// 請求斷綫
DialAppStopResult result = await app.StopAsync();
if (result == DialAppStopResult.Stopped)
{
picker.SetDisplayStatus(args.Device, DialDeviceDisplayStatus.Disconnected);
activeDialDevice = null;
activeDeviceInformation = null;
picker.Hide();
tblMsg.Text += "Stoped, success";
}
else
{
if (result == DialAppStopResult.StopFailed || result == DialAppStopResult.NetworkFailure)
{
// 如果失敗的話要記得多 retry 的機制
picker.SetDisplayStatus(args.Device, DialDeviceDisplayStatus.Error);
tblMsg.Text += $"Stoped, {result}";
}
else
{
// 如果設備沒有支援 Stop 機制，則直接清楚連綫就好
activeDialDevice = null;
activeDeviceInformation = null;
tblMsg.Text += "the device does not support Stop";
}
}
}
catch (Exception ex)
{
tblMsg.Text += ex.Message;
}
});
}
private async Task StopDialConnection(DevicePicker picker, DeviceInformation device)
{
try
{
// 取得被選擇的 dial device
DialDevice selectedDialDevice = await DialDevice.FromIdAsync(device.Id);
// 更新 picker status
picker.SetDisplayStatus(device, "connecting", DevicePickerDisplayStatusOptions.ShowProgress);
// 取得 dial app
DialApp app = selectedDialDevice.GetDialApp("castingsample");
// 請求斷綫
DialAppStopResult result = await app.StopAsync();
if (result == DialAppStopResult.Stopped)
{
picker.SetDisplayStatus(device, "Disconnected", DevicePickerDisplayStatusOptions.None);
activeDevice = null;
picker.Hide();
}
else
{
if (result == DialAppStopResult.StopFailed || result == DialAppStopResult.NetworkFailure)
{
// 如果失敗的話要記得多 retry 的機制
picker.SetDisplayStatus(device, "Error", DevicePickerDisplayStatusOptions.ShowDisconnectButton);
}
else
{
// 如果設備沒有支援 Stop 機制，則直接清楚連綫就好
activeDevice = null;
}
}
}
catch (Exception ex)
{
}
}
private async void Picker_DisconnectButtonClicked(DialDevicePicker sender, DialDisconnectButtonClickedEventArgs args)
{
//Casting must occur from the UI thread. This dispatches the casting calls to the UI thread.
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
// The args.SelectedCastingDevice is proxied from the picker process. The picker process is
// dismissmed as soon as you break into the debugger. Creating a non-proxied version
// allows debugging since the proxied version stops working once the picker is dismissed.
DialDevice selectedDevice = await DialDevice.FromIdAsync(args.Device.Id);
// Get the DeviceInformation instance for the the selected device
DeviceInformation selectedDeviceInfo = await DeviceInformation.CreateFromIdAsync(selectedDevice.Id);
// Update the picker status
try { picker.SetDisplayStatus(selectedDevice, DialDeviceDisplayStatus.Disconnecting); } catch { }
DialApp app = args.Device.GetDialApp(this.dial_appname_textbox.Text);
//Get the current application state
DialAppStateDetails stateDetails = await app.GetAppStateAsync();
switch (stateDetails.State)
{
case DialAppState.NetworkFailure:
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser("Network Failure while getting application state", NotifyType.ErrorMessage);
// Update the picker status
try { picker.SetDisplayStatus(selectedDevice, DialDeviceDisplayStatus.Error); } catch { }
break;
}
case DialAppState.Stopped:
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser("Application was already stopped.", NotifyType.StatusMessage);
try { picker.SetDisplayStatus(selectedDevice, DialDeviceDisplayStatus.Disconnected); } catch { }
break;
}
default:
{
DialAppStopResult result = await app.StopAsync();
if (result == DialAppStopResult.Stopped)
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser("Application stopped successfully.", NotifyType.StatusMessage);
try { picker.SetDisplayStatus(selectedDevice, DialDeviceDisplayStatus.Disconnected); } catch { }
}
else
{
if (result == DialAppStopResult.StopFailed || result == DialAppStopResult.NetworkFailure)
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser(string.Format("Error occured trying to stop application. Status: '{0}'", result.ToString()), NotifyType.StatusMessage);
try { picker.SetDisplayStatus(selectedDevice, DialDeviceDisplayStatus.Error); } catch { }
}
else //in case of DialAppStopResult.OperationNotSupported, there is not much more you can do. You could implement your own
// mechanism to stop the application on that device.
{
// In case getting the application state failed because of a network failure, you could add retry logic
rootPage.NotifyUser(string.Format("Stop is not supported by device: '{0}'", selectedDeviceInfo.Name), NotifyType.ErrorMessage);
}
}
break;
}
}
});
}
