public bool OnDoubleTap(Android.Views.MotionEvent ev)
{
if (photoViewAttacher == null)
{
return(false);
}
try {
float scale = photoViewAttacher.GetScale();
float x = ev.GetX();
float y = ev.GetY();
if (scale > photoViewAttacher.GetMinimumScale())
{
photoViewAttacher.SetScale(photoViewAttacher.GetMinimumScale(), x, y, true);
}
else
{
photoViewAttacher.SetScale(photoViewAttacher.GetMediumScale(), x, y, true);
}
/*
* if (scale < photoViewAttacher.GetMediumScale()) {
* photoViewAttacher.SetScale(photoViewAttacher.GetMediumScale(), x, y, true);
* } else if (scale >= photoViewAttacher.GetMediumScale() && scale < photoViewAttacher.GetMaximumScale()) {
* photoViewAttacher.SetScale(photoViewAttacher.GetMaximumScale(), x, y, true);
* } else {
* photoViewAttacher.SetScale(photoViewAttacher.GetMinimumScale(), x, y, true);
* }*/
} catch (Java.Lang.ArrayIndexOutOfBoundsException e) {
// Can sometimes happen when getX() and getY() is called
}
return(true);
}
public void Run()
{
ImageView imageView = photoViewAttacher.GetImageView();
if (imageView == null)
{
return;
}
float t = Interpolate();
float scale = mZoomStart + t * (mZoomEnd - mZoomStart);
float deltaScale = scale / photoViewAttacher.GetScale();
photoViewAttacher.mSuppMatrix.PostScale(deltaScale, deltaScale, mFocalX, mFocalY);
photoViewAttacher.CheckAndDisplayMatrix();
// We haven't hit our target scale yet, so post ourselves again
if (t < 1f)
{
Compat.PostOnAnimation(imageView, this);
}
}
public float GetScale()
{
return(mAttacher.GetScale());
}