PhotoViewAttacher.java 文件源码

public final boolean onSingleTapConfirmed(MotionEvent e) {
    ImageView imageView = getImageView();

    if (null != imageView) {
        if (null != mPhotoTapListener) {
            final RectF displayRect = getDisplayRect();

            if (null != displayRect) {
                final float x = e.getX(), y = e.getY();

                // Check to see if the user tapped on the photo
                if (displayRect.contains(x, y)) {

                    float xResult = (x - displayRect.left) / displayRect.width();
                    float yResult = (y - displayRect.top) / displayRect.height();

                    mPhotoTapListener.onPhotoTap(imageView, xResult, yResult);
                    return true;
                }
            }
        }
        if (null != mViewTapListener) {
            mViewTapListener.onViewTap(imageView, e.getX(), e.getY());
        }
    }

    return false;
}