Android 如何正确创建可拖动的浮动视图

我使用下面的代码在屏幕上拖动一个视图，它起作用了.但是，当用户第一次touch moveIcon时，floatingView突然移动到屏幕的中心，尽管我希望它保持在原来的位置.我怎么才能解决这个问题呢？我怀疑问题出在updatePosition()方法中.

    windowManager = getSystemService(Context.WINDOW_SERVICE) as WindowManager
    val layoutInflater = LayoutInflater.from(this)
    floatingView = layoutInflater.inflate(R.layout.floating_layout, null)

    // Set up the layout parameters for the floating view
    val params = WindowManager.LayoutParams(
        WindowManager.LayoutParams.WRAP_CONTENT,
        WindowManager.LayoutParams.WRAP_CONTENT,
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY
        } else {
            @Suppress("DEPRECATION")
            WindowManager.LayoutParams.TYPE_PHONE
        },
        WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
        PixelFormat.TRANSLUCENT
    )


    windowManager!!.addView(floatingView, params)

    // Moving the views:
    moveIcon = floatingView!!.findViewById(R.id.moveIcon)

    moveIcon.setOnTouchListener { view, event ->
        when (event.action) {
            MotionEvent.ACTION_DOWN -> {
                // Save the initial touch coordinates relative to the moveIcon view
                initialTouchX = event.rawX - view.x
                initialTouchY = event.rawY - view.y
            }
            MotionEvent.ACTION_MOVE -> {
                // Calculate the new position based on the movement and initial touch coordinates
                val newX = event.rawX - initialTouchX
                val newY = event.rawY - initialTouchY

                updatePosition(newX.toInt(), newY.toInt())
            }
        }
        true
    }
}

private fun updatePosition(x: Int, y: Int) {
    val windowManager = getSystemService(Context.WINDOW_SERVICE) as WindowManager

    val layoutParams = floatingView!!.layoutParams as WindowManager.LayoutParams
    layoutParams.x = x
    layoutParams.y = y
    windowManager.updateViewLayout(floatingView, layoutParams)
}