拖拽移动并监听点击事件

class DragMoveListener(private val windowManager: WindowManager,private val onClick:()->Unit={}): View.OnTouchListener {
    private var initialX = 0
    private var initialY = 0 //初始位置中心偏上
    private var initialTouchX = 0f
    private var initialTouchY = 0f
    override fun onTouch(view: View, event: MotionEvent): Boolean {
        val params = view.layoutParams as WindowManager.LayoutParams
        return when (event.action) {
            MotionEvent.ACTION_DOWN -> {
                initialX = params.x
                initialY = params.y
                initialTouchX = event.rawX
                initialTouchY = event.rawY
                true
            }

            MotionEvent.ACTION_MOVE -> {
                val deltaX = (event.rawX - initialTouchX).toInt()
                val deltaY = (event.rawY - initialTouchY).toInt()
                params.x = initialX + deltaX
                params.y = initialY + deltaY
                windowManager.updateViewLayout(view, params)
                true
            }

            MotionEvent.ACTION_UP -> {
                // 判断是否为点击事件（移动距离小于阈值）
                val tolerance = ViewConfiguration.get(view.context).scaledTouchSlop
                val deltaX = (event.rawX - initialTouchX).toInt()
                val deltaY = (event.rawY - initialTouchY).toInt()
                if (abs(deltaX) < tolerance && abs(deltaY) < tolerance) {
                    view.performClick() // 触发点击事件
                    onClick.invoke()
                }
                true
            }

            else -> false
        }
    }
}

使用方式

view.setOnTouchListener(DragMoveListener(windowManager) { sharedViewModel.triggerClick() })