Android 片段之间的数据传输

我正在开发一个餐厅项目。我有个问题。现在，我将告诉您在产品选择过程中发生的事件

**该应用程序由两个片段组成。活动名称为“MasaDetay”。FragmentOne的名字是“MasaUrunler”，FragmentTwo的名字是“MasaAdisyon”**

在“马索伦勒”片段中的动作

我从数据库中截取产品，并在屏幕上列出它们，这要归功于一个RecycleView

我打印列出的产品，并在其他活动中选择这些产品的数量、部分和属性

我在onActivityResult函数中获取所有数据

我将数组中的数据发送到另一个片段中

在“MasaAdisyon”片段中，发生以下事件

我正在onCreateView中执行LayoutManager事件，我绑定了一个适配器和回收适配器

我在RecycleServiceAdapter中的getItemCount函数中查看数组的大小在此步骤中，新数据不会进入RecycleViewAdapter

MasaUrunler-Kotlin代码

var ADISYONLISTESI = ArrayList<AdisyonListesiBilgileri>()
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
        if(requestCode == 1){
            var gecici = AdisyonListesiBilgileri(
                    data?.extras!!.getDouble("MIKTAR"),
                    data?.extras!!.getDouble("PORSIYON"),
                    data?.extras!!.getSerializable("URUNANABILGILERI") as UrunBilgileri,
                    data?.extras!!.getSerializable("SECILENOZELLIKLER") as ArrayList<secilenOzellikler>,
                    data?.extras!!.getSerializable("OZELLIKLISTESI") as ArrayList<UrunOzellikBilgileri>,
                    0,
                    0,
                    null,
                    null,
                    null
            )
            ADISYONLISTESI.add(gecici)
            var bundle = Bundle()
            bundle.putSerializable("ADISYONLISTESI",ADISYONLISTESI)
            var masaAdisyon = MasaAdisyon()
            masaAdisyon.arguments = bundle
            var fragmentManager = getFragmentManager()
            fragmentManager?.beginTransaction()?.detach(masaAdisyon)?.attach(masaAdisyon)?.commit()
        }
}

var adapter : MasaAdisyonListesiAdapter? = null
var ADISYONLISTESI = ArrayList<AdisyonListesiBilgileri>()
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                          savedInstanceState: Bundle?): View? {

    var thisView = inflater.inflate(R.layout.fragment_masa_adisyon, container, false)
    var args = arguments
    var layoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)
    thisView?.findViewById<RecyclerView>(R.id.masaAdisyonListesiRecycle)?.layoutManager = layoutManager
    adapter = MasaAdisyonListesiAdapter(ADISYONLISTESI)
    if(args?.getSerializable("ADISYONLISTESI") != null){
        ADISYONLISTESI = args?.getSerializable("ADISYONLISTESI") as ArrayList<AdisyonListesiBilgileri>
        adapter?.notifyDataSetChanged()
    }
    thisView?.findViewById<RecyclerView>(R.id.masaAdisyonListesiRecycle)?.adapter = adapter
    return thisView
}
inner class MasaAdisyonListesiAdapter(_ADISYONLISTESI : ArrayList<AdisyonListesiBilgileri>) : RecyclerView.Adapter<MasaAdisyonListesiAdapter.MasaAdisyonListesiViewHolder>(){
    var ADISYONLAR = _ADISYONLISTESI
    override fun getItemCount(): Int {
        Log.e("ADISYONBOYUTU",ADISYONLAR.size.toString())
        return ADISYONLAR.size
    }
    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MasaAdisyonListesiViewHolder {
        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
    }
    override fun onBindViewHolder(holder: MasaAdisyonListesiViewHolder, position: Int) {
        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
    }
    inner class MasaAdisyonListesiViewHolder(itemView : View) : RecyclerView.ViewHolder(itemView) {

    }
}

var adisynlistesi=ArrayList（）
重写activityResult（请求代码：Int，结果代码：Int，数据：Intent？）{
super.onActivityResult（请求代码、结果代码、数据）
if（requestCode==1）{
var gecici=AdisynListeibelgileri(
数据？.extras！！.getDouble（“MIKTAR”），
数据？.extras！！.getDouble（“PORSIYON”），
数据？.extras！！.getSerializable（“URUNANABILGILERI”）作为UrunBilgileri，
data？.extras！！.getSerializable（“SECILENOZELLIKLER”）作为ArrayList，
data？.extras！！.getSerializable（“OZELLIKLISTESI”）作为ArrayList，
0,
0,
无效的
无效的
无效的
)
ADISYONLISTESI.add（gecici）
var bundle=bundle（）
bundle.putSerializable（“adisonlistesi”，adisonlistesi）
var masaAdisyon=masaAdisyon（）
masaAdisyon.arguments=bundle
var fragmentManager=getFragmentManager（）
fragmentManager？.beginTransaction（）？.detach（masaAdisyon）？.attach（masaAdisyon）？.commit（）
}
}

MasaAdisyon Kotlin代码

var ADISYONLISTESI = ArrayList<AdisyonListesiBilgileri>()
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
        if(requestCode == 1){
            var gecici = AdisyonListesiBilgileri(
                    data?.extras!!.getDouble("MIKTAR"),
                    data?.extras!!.getDouble("PORSIYON"),
                    data?.extras!!.getSerializable("URUNANABILGILERI") as UrunBilgileri,
                    data?.extras!!.getSerializable("SECILENOZELLIKLER") as ArrayList<secilenOzellikler>,
                    data?.extras!!.getSerializable("OZELLIKLISTESI") as ArrayList<UrunOzellikBilgileri>,
                    0,
                    0,
                    null,
                    null,
                    null
            )
            ADISYONLISTESI.add(gecici)
            var bundle = Bundle()
            bundle.putSerializable("ADISYONLISTESI",ADISYONLISTESI)
            var masaAdisyon = MasaAdisyon()
            masaAdisyon.arguments = bundle
            var fragmentManager = getFragmentManager()
            fragmentManager?.beginTransaction()?.detach(masaAdisyon)?.attach(masaAdisyon)?.commit()
        }
}

var adapter : MasaAdisyonListesiAdapter? = null
var ADISYONLISTESI = ArrayList<AdisyonListesiBilgileri>()
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                          savedInstanceState: Bundle?): View? {

    var thisView = inflater.inflate(R.layout.fragment_masa_adisyon, container, false)
    var args = arguments
    var layoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)
    thisView?.findViewById<RecyclerView>(R.id.masaAdisyonListesiRecycle)?.layoutManager = layoutManager
    adapter = MasaAdisyonListesiAdapter(ADISYONLISTESI)
    if(args?.getSerializable("ADISYONLISTESI") != null){
        ADISYONLISTESI = args?.getSerializable("ADISYONLISTESI") as ArrayList<AdisyonListesiBilgileri>
        adapter?.notifyDataSetChanged()
    }
    thisView?.findViewById<RecyclerView>(R.id.masaAdisyonListesiRecycle)?.adapter = adapter
    return thisView
}
inner class MasaAdisyonListesiAdapter(_ADISYONLISTESI : ArrayList<AdisyonListesiBilgileri>) : RecyclerView.Adapter<MasaAdisyonListesiAdapter.MasaAdisyonListesiViewHolder>(){
    var ADISYONLAR = _ADISYONLISTESI
    override fun getItemCount(): Int {
        Log.e("ADISYONBOYUTU",ADISYONLAR.size.toString())
        return ADISYONLAR.size
    }
    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MasaAdisyonListesiViewHolder {
        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
    }
    override fun onBindViewHolder(holder: MasaAdisyonListesiViewHolder, position: Int) {
        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
    }
    inner class MasaAdisyonListesiViewHolder(itemView : View) : RecyclerView.ViewHolder(itemView) {

    }
}

var适配器：MasaAdisyonListesiAdapter？=无效的
var ADISYONLISTESI=ArrayList（）
覆盖创建视图（充气机：布局充气机，容器：视图组？，
savedInstanceState:捆绑？：查看？{
var thisView=充气机。充气（R.layout.fragment\u masa\u adisyon，容器，false）
var args=参数
var layoutManager=LinearLayoutManager（上下文，LinearLayoutManager.VERTICAL，false）
此视图？.findViewById（R.id.masaadisyonListSireCycle）？.layoutManager=layoutManager
适配器=MasaAdisyonListesiAdapter（ADISYONLISTESI）
if（args？.getSerializable（“adisonListesi”）！=null）{
ADISYONLISTESI=args？.getSerializable（“ADISYONLISTESI”）作为ArrayList
适配器？.notifyDataSetChanged（）
}
thisView？.findViewById（R.id.MasaaDisyonListSireCycle）？.adapter=适配器
返回此视图
}
内部类MasaAdisyonListesiAdapter（_adisonlistesi:ArrayList）：RecyclerView.Adapter（）{
var ADISYONLAR=\u ADISYONLISTESI
重写getItemCount（）：Int{
Log.e（“ADISYONBOYUTU”，adisonlar.size.toString（））
返回ADISYONLAR.size
}
override fun onCreateViewHolder（父级：ViewGroup，viewType:Int）：MasaaDisyonListeSiveWholder{
TODO（“未实现”）//要更改已创建函数的主体，请使用文件|设置|文件模板。
}
覆盖BindViewHolder（holder:MasaaDisyonListeSiveWholder，位置：Int）{
TODO（“未实现”）//要更改已创建函数的主体，请使用文件|设置|文件模板。
}
内部类masaaDisyonListeSiveWholder（itemView:View）：RecyclerView.ViewHolder（itemView）{
}
}

---

**我期待你的答案。谢谢你*

我看不到任何问题，回收服务适配器不会再次运行@timcastelijn这不是问题