public override bool OnFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)
{
if (view.fling != null)
{
//
// If a previous fling is still active, it should be cancelled so that two flings
// are not run simultaenously.
//
view.fling.CancelFling();
}
view.fling = new Fling(view, (int)velocityX, (int)velocityY);
view.CompatPostOnAnimation(view.fling);
return(base.OnFling(e1, e2, velocityX, velocityY));
}
public void Run()
{
float t = Interpolate();
float deltaScale = CalculateDeltaScale(t);
view.ScaleImage(deltaScale, bitmapX, bitmapY, stretchImageToSuper);
TranslateImageToCenterTouchPosition(t);
view.FixScaleTrans();
view.ImageMatrix = view.matrix;
if (t < 1f)
{
//
// We haven't finished zooming
//
view.CompatPostOnAnimation(this);
}
else
{
//
// Finished zooming
//
view.SetState(TouchState.NONE);
}
}
public void Run()
{
if (scroller.IsFinished)
{
scroller = null;
return;
}
if (scroller.ComputeScrollOffset())
{
int newX = scroller.CurrX;
int newY = scroller.CurrY;
int transX = newX - currX;
int transY = newY - currY;
currX = newX;
currY = newY;
view.matrix.PostTranslate(transX, transY);
view.FixTrans();
view.ImageMatrix = view.matrix;
view.CompatPostOnAnimation(this);
}
}
public override void OnScaleEnd(ScaleGestureDetector detector)
{
base.OnScaleEnd(detector);
view.SetState(TouchState.NONE);
bool animateToZoomBoundary = false;
float targetZoom = view.normalizedScale;
if (view.normalizedScale > view.maxScale)
{
targetZoom = view.maxScale;
animateToZoomBoundary = true;
}
else if (view.normalizedScale < view.minScale)
{
targetZoom = view.minScale;
animateToZoomBoundary = true;
}
if (animateToZoomBoundary)
{
DoubleTapZoom doubleTap = new DoubleTapZoom(view, targetZoom, view.viewWidth / 2, view.viewHeight / 2, true);
view.CompatPostOnAnimation(doubleTap);
}
}