private void onActionUp() {
    if (mMoveHandler != null) {
      mMoveHandler = null;
      callOnCropWindowChanged(false);
      invalidate();
    }
  }
Clear move handler starting in {@link #onActionDown(float, float)} if exists.
core/src/main/java/com/theartofdev/edmodo/cropper/CropOverlayView.java