RTEditor/src/main/java/com/onegravity/rteditor/media/crop/CropImageView.java
private void recomputeFocus(MotionEvent event) {
        for (int i = 0; i < mHighlightViews.size(); i++) {
            HighlightView hv = mHighlightViews.get(i);
            hv.setFocus(false);
            hv.invalidate();
        }

        for (int i = 0; i < mHighlightViews.size(); i++) {
            HighlightView hv = mHighlightViews.get(i);
            int edge = hv.getHit(event.getX(), event.getY());
            if (edge != HighlightView.GROW_NONE) {
                if (!hv.hasFocus()) {
                    hv.setFocus(true);
                    hv.invalidate();
                }
                break;
            }
        }
        invalidate();
    }
private void recomputeFocus(MotionEvent event) {
        for (int i = 0; i < mHighlightViews.size(); i++) {
            HighlightView hv = mHighlightViews.get(i);
            hv.setFocus(false);
            hv.invalidate();
        }

        for (int i = 0; i < mHighlightViews.size(); i++) {
            HighlightView hv = mHighlightViews.get(i);
            int edge = hv.getHit(event.getX(), event.getY());
            if (edge != HighlightView.GROW_NONE) {
                if (!hv.hasFocus()) {
                    hv.setFocus(true);
                    hv.invalidate();
                }
                break;
            }
        }
        invalidate();
    }
hitting cropping rectangle.