private async Task <IList <TemporaryExposureKey> > GetReleasedTemporaryExposureKeys(
ExposureNotificationClient enClient,
Context appContext
)
{
TaskCompletionSource <Intent> taskCompletionSource = new TaskCompletionSource <Intent>(TaskCreationOptions.RunContinuationsAsynchronously);
BroadcastReceiver receiver = new PreAuthorizeReleasePhoneUnlockedBroadcastReceiver(taskCompletionSource);
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource(API_TIMEOUT_MILLIS);
using (cancellationTokenSource.Token.Register(() =>
{
Logger.D("cancellationTokenSource canceled.");
taskCompletionSource.TrySetCanceled();
appContext.UnregisterReceiver(receiver);
}))
{
appContext.RegisterReceiver(
receiver,
INTENT_FILTER_PRE_AUTHORIZE_RELEASE_PHONE_UNLOCKED
);
await enClient.RequestPreAuthorizedTemporaryExposureKeyReleaseAsync();
Intent intent = await taskCompletionSource.Task;
IList <TemporaryExposureKey> temporaryExposureKeys = intent.GetParcelableArrayListExtra(EXTRA_TEMPORARY_EXPOSURE_KEY_LIST)
.Cast <AndroidTemporaryExposureKey>()
.Select(tek => (TemporaryExposureKey) new PlatformTemporaryExposureKey(tek))
.ToList();
return(temporaryExposureKeys);
}
}
private async Task <(ExposureSummary, IList <ExposureInformation> exposureInformations)> GetExposureV1Async(
ExposureNotificationClient enClient,
string token
)
{
Logger.D($"GetExposureV1Async");
AndroidExposureSummary exposureSummary = await enClient.EnClient.GetExposureSummaryAsync(token);
IList <AndroidExposureInformation> eis = await enClient.EnClient.GetExposureInformationAsync(token);
IList <ExposureInformation> exposureInformations = eis.Select(ei => (ExposureInformation) new PlatformExposureInformation(ei)).ToList();
return(new PlatformExposureSummary(exposureSummary), exposureInformations);
}
private async Task <(List <DailySummary> dailySummaries, List <ExposureWindow> exposureWindows)> GetExposureV2Async(
ExposureNotificationClient enClient,
ExposureConfiguration exposureConfiguration
)
{
Logger.D($"GetExposureV2Async");
IList <AndroidDailySummary> dss = await enClient.EnClient.GetDailySummariesAsync(
exposureConfiguration.GoogleDailySummariesConfig.ToAndroidDailySummariesConfig()
);
List <DailySummary> dailySummaries = dss.Select(ds => (DailySummary) new PlatformDailySummary(ds)).ToList();
IList <AndroidExposureWindow> ews = await enClient.EnClient.GetExposureWindowsAsync();
List <ExposureWindow> exposureWindows = ews.Select(ew => (ExposureWindow) new PlatformExposureWindow(ew)).ToList();
return(dailySummaries, exposureWindows);
}