MostafaAnter/TrymotionLayout

TrymotionLayout

To start motionLayout programically i used this snipt

private fun coordinateMotion() {
    val appBarLayout: AppBarLayout = findViewById(R.id.appbar_layout)
    val motionLayout: MotionLayout = findViewById(R.id.motion_layout)

    val listener = AppBarLayout.OnOffsetChangedListener { unused, verticalOffset ->
        val seekPosition = -verticalOffset / appBarLayout.totalScrollRange.toFloat()
        motionLayout.progress = seekPosition
    }

    appBarLayout.addOnOffsetChangedListener(listener)
}

To scal views i add KeyFrameSet to my Transition

<KeyFrameSet>
       <KeyAttribute
           android:scaleX="0.5"
           android:scaleY="0.5"
           motion:framePosition="100"
           motion:motionTarget="@id/avatar"
           />
   </KeyFrameSet>