PhotoViewerTest.Droid.PhotoViewDroidAttacher.OnGlobalLayout C# (CSharp) Method

        public void OnGlobalLayout()
        {
            ImageView imageView = GetImageView();

            if (null != imageView) {
                if (mZoomEnabled) {
                    int top = imageView.Top;
                     int right = imageView.Right;
                     int bottom = imageView.Bottom;
                     int left = imageView.Left;

                    /**
                 * We need to check whether the ImageView's bounds have changed.
                 * This would be easier if we targeted API 11+ as we could just use
                 * View.OnLayoutChangeListener. Instead we have to replicate the
                 * work, keeping track of the ImageView's bounds and then checking
                 * if the values change.
                 */
                    if (top != mIvTop || bottom != mIvBottom || left != mIvLeft
                        || right != mIvRight) {
                        // Update our base matrix, as the bounds have changed
                        UpdateBaseMatrix(imageView.Drawable);

                        // Update values as something has changed
                        mIvTop = top;
                        mIvRight = right;
                        mIvBottom = bottom;
                        mIvLeft = left;
                    }
                } else {
                    UpdateBaseMatrix(imageView.Drawable);
                }
            }
        }