protected override bool CanBegin( FingerGestures.IFingerList touches )
{
if( !base.CanBegin( touches ) )
return false;
if( touches.GetAverageDistanceFromStart() < MoveTolerance )
return false;
return true;
}
protected override GestureState OnActive( FingerGestures.IFingerList touches )
{
if( touches.Count != RequiredFingerCount )
return GestureState.Failed;
if( ElapsedTime >= Duration )
{
RaiseOnLongPress();
return GestureState.Recognized;
}
// check if we moved too far from initial position
if( touches.GetAverageDistanceFromStart() > MoveTolerance )
return GestureState.Failed;
return GestureState.InProgress;
}