protected override bool _isFlingGesture(VelocityEstimate estimate)
{
float minVelocity = minFlingVelocity ?? Constants.kMinFlingVelocity;
float minDistance = minFlingDistance ?? Constants.kTouchSlop;
return(Mathf.Abs(estimate.pixelsPerSecond.dx) > minVelocity && Mathf.Abs(estimate.offset.dx) > minDistance);
}
protected override bool _isFlingGesture(VelocityEstimate estimate)
{
double minVelocity = this.minFlingVelocity ?? Constants.kMinFlingVelocity;
double minDistance = this.minFlingDistance ?? Constants.kTouchSlop;
return(Math.Abs(estimate.pixelsPerSecond.dy) > minVelocity && Math.Abs(estimate.offset.dy) > minDistance);
}
protected override bool _isFlingGesture(VelocityEstimate estimate)
{
float minVelocity = this.minFlingVelocity ?? Constants.kMinFlingVelocity;
float minDistance = this.minFlingDistance ?? Constants.kTouchSlop;
return(estimate.pixelsPerSecond.distanceSquared > minVelocity * minVelocity &&
estimate.offset.distanceSquared > minDistance * minDistance);
}
public Velocity getVelocity()
{
VelocityEstimate estimate = getVelocityEstimate();
if (estimate == null || estimate.pixelsPerSecond == Offset.zero)
{
return(Velocity.zero);
}
return(new Velocity(pixelsPerSecond: estimate.pixelsPerSecond));
}
protected abstract bool _isFlingGesture(VelocityEstimate estimate);
