public bool OnSingleTapConfirmed(Android.Views.MotionEvent e)
{
if (this.photoViewAttacher == null)
{
return(false);
}
ImageView imageView = photoViewAttacher.GetImageView();
if (null != photoViewAttacher.GetOnPhotoTapListener())
{
RectF displayRect = photoViewAttacher.GetDisplayRect();
if (null != displayRect)
{
float x = e.GetX(), y = e.GetY();
if (displayRect.Contains(x, y))
{
float xResult = (x - displayRect.Left)
/ displayRect.Width();
float yResult = (y - displayRect.Top)
/ displayRect.Height();
photoViewAttacher.GetOnPhotoTapListener().OnPhotoTap(imageView, xResult, yResult);
return(true);
}
}
}
if (null != photoViewAttacher.GetOnViewTapListener())
{
photoViewAttacher.GetOnViewTapListener().OnViewTap(imageView, e.GetX(), e.GetY());
}
return(false);
}
public void Fling(int viewWidth, int viewHeight, int velocityX,
int velocityY)
{
RectF rect = photoViewAttacher.GetDisplayRect();
if (null == rect)
{
return;
}
int startX = (int)Math.Round(-rect.Left);
int minX, maxX, minY, maxY;
if (viewWidth < rect.Width())
{
minX = 0;
maxX = (int)Math.Round(rect.Width() - viewWidth);
}
else
{
minX = maxX = startX;
}
int startY = (int)Math.Round(-rect.Top);
if (viewHeight < rect.Height())
{
minY = 0;
maxY = (int)Math.Round(rect.Height() - viewHeight);
}
else
{
minY = maxY = startY;
}
mCurrentX = startX;
mCurrentY = startY;
if (photoViewAttacher.DEBUG)
{
LogManager.GetLogger().d(
"PhotoViewAttacher",
"fling. StartX:" + startX + " StartY:" + startY
+ " MaxX:" + maxX + " MaxY:" + maxY);
}
// If we actually can move, fling the scroller
if (startX != maxX || startY != maxY)
{
mScroller.Fling(startX, startY, velocityX, velocityY, minX,
maxX, minY, maxY, 0, 0);
}
}
public Android.Graphics.RectF GetDisplayRect()
{
return(mAttacher.GetDisplayRect());
}