/// <summary>
/// Activity Life cycle method
///
/// This is method is called automatically whenever the activity state is updated, usually after
/// its creation.
/// </summary>
protected override void OnSaveInstanceState(Bundle outState)
{
setLatestAppState(outState);
if (verifyLocationPermissions() && !AndroidController.hasInitialized())
{
initMaps();
initControllersAndStartServices();
// Clean initilization variables, set the state of the activity and register services.
dismissPermissionsDialogs();
AndroidController.setHasInitialized(true);
OnResume();
}
}
/// <summary>
/// Handles the runtime permissions.
/// </summary>
private bool verifyLocationPermissions()
{
if (AndroidController.hasGrantedLocationPermission())
{
return(true);
}
else if ((int)Build.VERSION.SdkInt < 23)
{
AndroidController.setHasGrantedLocationPermission(true);
return(true);
}
else
{
getLocationPermissionAsync();
return(false);
}
}
/// <summary>
/// Activity Life cycle method
///
/// This method receives the response of the permission dialogs that were presented to user.
/// </summary>
public override void OnRequestPermissionsResult(int requestCode, string[] permissions, Permission[] grantResults)
{
switch (requestCode)
{
case mRequestLocationId: {
if (grantResults[0] == Permission.Granted)
{
AndroidController.setHasGrantedLocationPermission(true);
OnSaveInstanceState(getLatestAppState());
}
else
{
showGiveLocationPermissionsDialog();
}
}
break;
}
}
void getLocationPermissionAsync()
{
if ((int)Build.VERSION.SdkInt >= 23)
{
const string permission = Manifest.Permission.AccessFineLocation;
if (CheckSelfPermission(permission) == (int)Permission.Granted)
{
AndroidController.setHasGrantedLocationPermission(true);
OnSaveInstanceState(getLatestAppState());
}
else if (CheckSelfPermission(permission) == Permission.Denied ||
ShouldShowRequestPermissionRationale(permission))
{
showGiveLocationPermissionsDialog();
}
else
{
RequestPermissions(mPermissionsLocation, mRequestLocationId);
}
}
}