单击按钮时片段中的所有内容都将重置/重新启动

Question

在另一个片段中，我想删除所有内容或重置它们并用新值重新填充它。单击按钮可在另一个片段中实现此目的。也许有更好的方法可以执行此操作，所以我将代码放入问题中。

使用片段B中的ViewModel填充片段A中的值：

将我的数据发送到片段B到A：

 startButton.setOnClickListener { v ->
            Log.d("Hur", activity!!.supportFragmentManager.fragments.size.toString())
            val spinnerVal = sizeSpinner.selectedItem.toString().toInt()
            val map = HashMap<String, Any>()
            wordList.sortByDescending { it.length }
            Log.d("Tag", wordList.toString())
            map["words"] = wordList
            map["rowSize"] = spinnerVal
            map["columnSize"] = spinnerVal
            loaded++
            map["loaded"] = loaded
            gameData?.data?.postValue(map)
            (activity as MainActivity).getViewPager().setCurrentItem(0)
        }

我正在使用ViewPagerListener检索片段A中的值：

片段A-OnCreateView：

val pager = (activity as MainActivity).getViewPager()
        pager.addOnPageChangeListener(object : OnPageChangeListener {
            override fun onPageScrollStateChanged(state: Int) {}
            override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {}

            override fun onPageSelected(position: Int) {
                if(position == 0) {
                    Log.d("Tag", "Inside")
                    activity?.let {
                        Log.d("Tag", "Hello World!")
                        val gameData = ViewModelProviders.of(it).get(GameData::class.java)
                        observeInput(gameData)
                    }
                }
            }
        })

observeInput：

      gameData.data.observe(this, Observer {
            it?.let {
                words = it["words"] as ArrayList<String>
                columnSize = it["columnSize"] as Int
                rowSize = it["rowSize"] as Int
                Log.d("yes", "Starting Game")
                if(rowSize != 0 && columnSize != 0 && !words.isEmpty() && !loaded) {
                    Log.d("inside", "yes")
                    wordGrid = Array(rowSize) { Array(columnSize) { "" } }
                    findLocations()
                    initLayouts()
                }
            }
        })