拦截 View 触摸事件，判断滑动方向

anyView.setOnTouchListener(object : View.OnTouchListener {
    private var initialX = 0f
    private var initialY = 0f
    private var hasScrolled = false

    override fun onTouch(v: View?, event: MotionEvent?): Boolean {
        event ?: return false
        when (event.action) {
            MotionEvent.ACTION_DOWN -> {
                // 记录初始触摸位置
                initialX = event.x
                initialY = event.y
                hasScrolled = false
            }
            MotionEvent.ACTION_MOVE -> {
                if (!hasScrolled) {
                    val diffX = event.x - initialX
                    val diffY = event.y - initialY

                    // 判断滑动方向，确保是水平滑动
                    if (abs(diffX) > abs(diffY)) {
                        val direction = if (diffX < 0) Direction.LEFT else Direction.RIGHT

                        handleHorizontalScroll(direction)
                        hasScrolled = true
                    }
                }
            }
            MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> {
                hasScrolled = false
            }
        }

        return false
    }

    private fun handleHorizontalScroll(direction: Direction) {
        when (direction) {
            Direction.LEFT -> { // 向左滑动
                showToast("发生向左滑动")
                // 在这里处理向左滑动的逻辑
            }
            Direction.RIGHT -> { // 向右滑动
                showToast("发生向右滑动")
                // 在这里处理向右滑动的逻辑
            }
        }
    }

    private fun showToast(message: String) {
        Toast.makeText(context, message, Toast.LENGTH_SHORT).show()
    }

    enum class Direction {
        LEFT, RIGHT
    }
}