async Task <bool> CheckLocationAvailability(Android.Gms.Location.LocationRequest locationRequest)
{
// Build a new request with the given location request
var locationSettingsRequest = new Android.Gms.Location.LocationSettingsRequest.Builder()
.AddLocationRequest(locationRequest)
.Build();
//TODO: async issues
// Ask the Settings API if we can fulfill this request
var locationSettingsResult =
//await
Android.Gms.Location.LocationServices.SettingsApi
//.CheckLocationSettingsAsync(googleApiClient, locationSettingsRequest);
.CheckLocationSettings(googleApiClient, locationSettingsRequest);
// If false, we might be able to resolve it by showing the location settings
// to the user and allowing them to change the settings
/*
* if (!locationSettingsResult.Status.IsSuccess)
* {
*
* if (locationSettingsResult.Status.StatusCode == Android.Gms.Location.LocationSettingsStatusCodes.ResolutionRequired)
* locationSettingsResult.Status.StartResolutionForResult(this, 101);
* else
* Toast.MakeText(this, "Location Services Not Available for the given request.", ToastLength.Long).Show();
*
* return false;
* }
*/
return(true);
}
void CreateLocationRequest()
{
locationRequest = new Android.Gms.Location.LocationRequest();
locationRequest.SetInterval(UPDATE_INTERVAL);
locationRequest.SetFastestInterval(FASTEST_INTERVAL);
locationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityHighAccuracy);
locationRequest.SetSmallestDisplacement(DISPLACEMENT);
locationClient = Android.Gms.Location.LocationServices.GetFusedLocationProviderClient(this);
mLocationCallback = new LocationCallbackHelper();
mLocationCallback.MyLocation += MLocationCallback_MyLocation;
Logger.Log("Location mamager initialized. ", "locationProvider");
}
internal void StartLocationUpdates()
{
Android.Gms.Location.LocationRequest mLocationRequest = new Android.Gms.Location.LocationRequest();
mLocationRequest.SetInterval(CrossGeofence.LocationUpdatesInterval == 0 ? 30000 : CrossGeofence.LocationUpdatesInterval);
mLocationRequest.SetFastestInterval(CrossGeofence.FastestLocationUpdatesInterval == 0 ? 5000 : CrossGeofence.FastestLocationUpdatesInterval);
string priorityType = "Balanced Power";
switch (CrossGeofence.GeofencePriority)
{
case GeofencePriority.HighAccuracy:
priorityType = "High Accuracy";
mLocationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityHighAccuracy);
break;
case GeofencePriority.LowAccuracy:
priorityType = "Low Accuracy";
mLocationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityLowPower);
break;
case GeofencePriority.LowestAccuracy:
priorityType = "Lowest Accuracy";
mLocationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityNoPower);
break;
case GeofencePriority.MediumAccuracy:
case GeofencePriority.AcceptableAccuracy:
default:
mLocationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityBalancedPowerAccuracy);
break;
}
System.Diagnostics.Debug.WriteLine(string.Format("{0} - {1}: {2}", CrossGeofence.Id, "Priority set to", priorityType));
//(Regions.Count == 0) ? (CrossGeofence.SmallestDisplacement==0?50 :CrossGeofence.SmallestDisplacement): Regions.Min(s => (float)s.Value.Radius)
if (CrossGeofence.SmallestDisplacement > 0)
{
mLocationRequest.SetSmallestDisplacement(CrossGeofence.SmallestDisplacement);
System.Diagnostics.Debug.WriteLine(string.Format("{0} - {1}: {2} meters", CrossGeofence.Id, "Location smallest displacement set to", CrossGeofence.SmallestDisplacement));
}
Android.Gms.Location.LocationServices.FusedLocationApi.RequestLocationUpdates(mGoogleApiClient, mLocationRequest, GeofenceLocationListener.SharedInstance);
}
async Task RequestLocationUpdates()
{
// Describe our location request
var locationRequest = new Android.Gms.Location.LocationRequest()
.SetInterval(10000)
.SetFastestInterval(1000)
.SetPriority(Android.Gms.Location.LocationRequest.PriorityHighAccuracy);
// Check to see if we can request updates first
if (await CheckLocationAvailability(locationRequest))
{
// Request updates
//await
Android.Gms.Location.LocationServices.FusedLocationApi.RequestLocationUpdates
(
googleApiClient,
locationRequest,
this
);
}
}
protected override async void OnResume()
{
base.OnResume();
// Subscribe for location updates
locationCallback.LocationResult += LocationCallback_LocationResult;
// Build our location request setting interval, priority, etc
var locationRequest = new Android.Gms.Location.LocationRequest()
.SetInterval(10000)
.SetFastestInterval(1000)
.SetPriority(Android.Gms.Location.LocationRequest.PriorityHighAccuracy);
// Start receiving location updates
await fusedClient.RequestLocationUpdatesAsync(locationRequest, locationCallback);
// Get the last known location so we can show the user something immediately
var lastLocation = await fusedClient.GetLastLocationAsync();
if (lastLocation != null)
{
textLastLocation.Text = DescribeLocation(lastLocation);
}
}
internal void StartLocationUpdates()
{
Android.Gms.Location.LocationRequest mLocationRequest = new Android.Gms.Location.LocationRequest();
mLocationRequest.SetInterval(CrossGeofence.LocationUpdatesInterval == 0 ? 30000 : CrossGeofence.LocationUpdatesInterval);
mLocationRequest.SetFastestInterval(CrossGeofence.FastestLocationUpdatesInterval == 0 ? 5000 : CrossGeofence.FastestLocationUpdatesInterval);
string priorityType = "Balanced Power";
switch (CrossGeofence.GeofencePriority)
{
case GeofencePriority.HighAccuracy:
priorityType = "High Accuracy";
mLocationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityHighAccuracy);
break;
case GeofencePriority.LowAccuracy:
priorityType = "Low Accuracy";
mLocationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityLowPower);
break;
case GeofencePriority.LowestAccuracy:
priorityType = "Lowest Accuracy";
mLocationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityNoPower);
break;
case GeofencePriority.MediumAccuracy:
case GeofencePriority.AcceptableAccuracy:
default:
mLocationRequest.SetPriority(Android.Gms.Location.LocationRequest.PriorityBalancedPowerAccuracy);
break;
}
System.Diagnostics.Debug.WriteLine(string.Format("{0} - {1}: {2}", CrossGeofence.Id, "Priority set to", priorityType));
//(Regions.Count == 0) ? (CrossGeofence.SmallestDisplacement==0?50 :CrossGeofence.SmallestDisplacement): Regions.Min(s => (float)s.Value.Radius)
if (CrossGeofence.SmallestDisplacement > 0)
{
mLocationRequest.SetSmallestDisplacement(CrossGeofence.SmallestDisplacement);
System.Diagnostics.Debug.WriteLine(string.Format("{0} - {1}: {2} meters", CrossGeofence.Id, "Location smallest displacement set to", CrossGeofence.SmallestDisplacement));
}
Android.Gms.Location.LocationServices.FusedLocationApi.RequestLocationUpdates(mGoogleApiClient, mLocationRequest, GeofenceLocationListener.SharedInstance);
}
