constraints

val set = motion.getConstraintSet(R.id.start)
set.clear(R.id.img_motion)
set.constrainWidth(R.id.img_motion, img.width)
set.constrainHeight(R.id.img_motion, img.height)
set.connect(
    R.id.img_motion,
    ConstraintSet.START,
    ConstraintSet.PARENT_ID,
    ConstraintSet.START,
    rect.left
)
when (clipType) {
    CLIP_TOP -> set.connect(
        R.id.img_motion,
        ConstraintSet.BOTTOM,
        ConstraintSet.PARENT_ID,
        ConstraintSet.BOTTOM,
        motion.bottom - rect.bottom
    )
    else -> set.connect(
        R.id.img_motion,
        ConstraintSet.TOP,
        ConstraintSet.PARENT_ID,
        ConstraintSet.TOP,
        rect.top
    )
}