KakaoTalk_20241004_172800054.mp4

Swipe Listener 설정?

• setOnTouchListener를 통해 감지한다
  • MotionEvent.ACTION_DOWN 에서, 스와이프 동작 시작 → 클릭 위치 y 좌표를 받기
  • MotionEvent.ACTION_MOVE 에서, 드래그 동작 감지해, 초기 위치 y와의 차이를 통해, → 위로 스와이프, 아래로 스와이프 구분
  • MotionEvent.UP 에서, 스와이프 동작 끝났을때 → 처리할 로직 구현

@SuppressLint("ClickableViewAccessibility")
private fun setSwipeListener() {
    binding.viewSwipable.setOnTouchListener { v, event ->
        when (event.action) {
            MotionEvent.ACTION_DOWN -> {
                initialY = event.y
                true
            }

            MotionEvent.ACTION_MOVE -> {
                val deltaY = event.y - initialY

                swipingAction = if (deltaY > 0) SwipingAction.SWIPE_DOWN
                else SwipingAction.SWIPE_UP

                true
            }

            MotionEvent.ACTION_UP -> {

                when (swipingAction) {
                    SwipingAction.SWIPE_UP -> {
                        if (curRating < 5) curRating++
                    }

                    SwipingAction.SWIPE_DOWN -> {
                        if (curRating > 0) curRating--
                    }

                    else -> {}
                }

                changeSwipeViewHeight()
                swipingAction = SwipingAction.NO_SWIPE
                true
            }

            else -> false
        }
    }
}

View의 높이 동적으로 변경

• 기존높이, 타겟높이를 인자로 받아, 높이 변화 애니메이션을 적용

private fun changeSwipeViewHeight() {
    val ummPoint =
        binding.root.height - binding.tvUmm.y.toInt() - resources.getDimensionPixelSize(R.dimen.estimate_text_half_height)
    val notBadPoint =
        binding.root.height - binding.tvNotBad.y.toInt() - resources.getDimensionPixelSize(R.dimen.estimate_text_half_height)
    val goodPoint =
        binding.root.height - binding.tvGood.y.toInt() - resources.getDimensionPixelSize(R.dimen.estimate_text_half_height)
    val veryGoodPoint =
        binding.root.height - binding.tvVeryGood.y.toInt() - resources.getDimensionPixelSize(R.dimen.estimate_text_half_height)
    val awesomePoint =
        binding.root.height - binding.tvAwesome.y.toInt() - resources.getDimensionPixelSize(R.dimen.estimate_text_half_height)

    val currentHeight = binding.swipeView.height
    val targetHeight = when (curRating) {
        0 -> 0
        1 -> ummPoint
        2 -> notBadPoint
        3 -> goodPoint
        4 -> veryGoodPoint
        5 -> awesomePoint
        else -> 0
    }

    startViewHeightChangeAnimation(currentHeight, targetHeight)
}

private fun startViewHeightChangeAnimation(curHeight: Int, targetHeight: Int) {
    val animator = ValueAnimator.ofInt(curHeight, targetHeight)
    animator.addListener(object : Animator.AnimatorListener {
        override fun onAnimationEnd(animation: Animator) {
            when (curRating) {
                0 -> {
                    binding.ivUmm.visibility = View.INVISIBLE
                    RecordFormData.rating = 3
                }

                1 -> {
                    binding.ivUmm.visibility = View.VISIBLE
                    binding.ivNotBad.visibility = View.INVISIBLE
                    RecordFormData.rating = 1
                }

                2 -> {
                    binding.ivUmm.visibility = View.INVISIBLE
                    binding.ivNotBad.visibility = View.VISIBLE
                    binding.ivGood.visibility = View.INVISIBLE
                    RecordFormData.rating = 2
                }

                3 -> {
                    binding.ivNotBad.visibility = View.INVISIBLE
                    binding.ivGood.visibility = View.VISIBLE
                    binding.ivVeryGood.visibility = View.INVISIBLE
                    RecordFormData.rating = 3
                }

                4 -> {
                    binding.ivGood.visibility = View.INVISIBLE
                    binding.ivVeryGood.visibility = View.VISIBLE
                    binding.ivAwsome.visibility = View.INVISIBLE
                }

                5 -> {
                    binding.ivVeryGood.visibility = View.INVISIBLE
                    binding.ivAwsome.visibility = View.VISIBLE
                    RecordFormData.rating = 5
                }
            }
        }

        override fun onAnimationRepeat(animation: Animator) {}
        override fun onAnimationStart(animation: Animator) {}
        override fun onAnimationCancel(animation: Animator) {}
    })

    animator.duration = 150
    animator.interpolator = AccelerateDecelerateInterpolator()
    animator.addUpdateListener { animation ->
        val animatedHeight = animation.animatedValue as Int
        binding.swipeView.layoutParams.height = animatedHeight
        binding.swipeView.requestLayout()
    }
    animator.start()
}