public override Task <AccessState> RequestAccess()
{
if (!PlatformExtensions.HasBackgroundMode("fetch"))
{
return(Task.FromResult(AccessState.NotSetup));
}
var app = UIApplication.SharedApplication;
var fetch = BackgroundFetchInterval ?? UIApplication.BackgroundFetchIntervalMinimum;
app.SetMinimumBackgroundFetchInterval(fetch);
var status = app.BackgroundRefreshStatus;
var grantResult = AccessState.Unknown;
switch (status)
{
case UIBackgroundRefreshStatus.Available:
grantResult = AccessState.Available;
break;
case UIBackgroundRefreshStatus.Denied:
grantResult = AccessState.Denied;
break;
case UIBackgroundRefreshStatus.Restricted:
grantResult = AccessState.Restricted;
break;
}
return(Task.FromResult(grantResult));
}
public JobManager(IServiceProvider container, IRepository repository) : base(container, repository)
{
if (PlatformExtensions.HasBackgroundMode("fetch"))
{
UIApplication.SharedApplication.SetMinimumBackgroundFetchInterval(BackgroundFetchInterval ?? UIApplication.BackgroundFetchIntervalMinimum);
}
//UIApplication.SharedApplication.ObserveValue(UIApplication.BackgroundRefreshStatusDidChangeNotification)
}
public override Task <AccessState> RequestAccess()
{
var result = AccessState.Available;
if (!UIDevice.CurrentDevice.CheckSystemVersion(13, 0))
{
result = AccessState.NotSupported;
}
else if (iOSExtensions.IsSimulator)
{
result = AccessState.NotSupported;
}
else if (!PlatformExtensions.HasBackgroundMode("processing"))
{
result = AccessState.NotSetup;
}
return(Task.FromResult(result));
}
public override async Task <AccessState> RequestAccess()
{
if (!PlatformExtensions.HasBackgroundMode("fetch"))
{
return(AccessState.NotSetup);
}
var app = UIApplication.SharedApplication;
var fetch = BackgroundFetchInterval ?? UIApplication.BackgroundFetchIntervalMinimum;
app.SetMinimumBackgroundFetchInterval(fetch);
var status = app.BackgroundRefreshStatus;
var grantResult = AccessState.Unknown;
switch (status)
{
case UIBackgroundRefreshStatus.Available:
grantResult = AccessState.Available;
break;
case UIBackgroundRefreshStatus.Denied:
grantResult = AccessState.Denied;
break;
case UIBackgroundRefreshStatus.Restricted:
grantResult = AccessState.Restricted;
break;
}
await this.platform.InvokeOnMainThreadAsync(() =>
UIApplication.SharedApplication.SetMinimumBackgroundFetchInterval(
BackgroundFetchInterval ?? UIApplication.BackgroundFetchIntervalMinimum
)
);
//UIApplication.SharedApplication.ObserveValue(UIApplication.BackgroundRefreshStatusDidChangeNotification)
return(grantResult);
}