public async Task SuspendAsync(ISuspendingDeferral deferral)
{
this.LogInfo($"Settings.AutoSuspend: {Settings.AutoSuspend} Settings.AutoExtendExecution: {Settings.AutoExtendExecution}");
try
{
if (!Settings.AutoSuspend)
{
return;
}
else if (Settings.AutoExtendExecution)
{
using (var session = CreateSession())
{
foreach (var nav in ViewService.AllNavigationServices)
{
await nav.SuspendAsync();
}
}
}
else
{
foreach (var nav in ViewService.AllNavigationServices)
{
await nav.SuspendAsync();
}
}
}
finally
{
deferral?.Complete();
}
}
public async Task SuspendAsync(ISuspendingDeferral deferral)
{
this.LogInfo($"Settings.AutoSuspend: {Settings.AutoSuspend} Settings.AutoExtendExecution: {Settings.AutoExtendExecution}");
try
{
if (!Settings.AutoSuspend)
{
return;
}
else if (Settings.AutoExtendExecution)
{
using (var session = CreateSession())
{
foreach (var nav in ViewService.AllNavigationServices)
{
await nav.SuspendAsync();
}
}
}
else
{
foreach (var nav in ViewService.AllNavigationServices)
{
await nav.SuspendAsync();
}
}
}
finally
{
deferral?.Complete();
}
}
// *** Protected Methods ***
protected async void OnSuspending(object sender, ISuspendingEventArgs e)
{
ISuspendingDeferral deferal = GetDeferral(e);
IEnumerable <Task> resumingTasks = registeredServices.Select(service => service.OnSuspending());
await Task.WhenAll(resumingTasks);
deferal.Complete();
}
/// <summary>
/// Runs a function while also getting a suspension deferral from the Windows Runtime.
/// </summary>
private static Func <Func <Task>, Task> RunWithDeferral(ISuspendingEventArgs e)
{
return(async function =>
{
ISuspendingDeferral deferral = e.SuspendingOperation.GetDeferral();
try
{
await function();
}
finally
{
deferral.Complete();
}
});
}
