android - 具有数据绑定(bind)的约束布局无响应

Question

我面临的问题是约束布局完全没有响应。不显示边距，onCLick 处理程序不工作。下面我附上了 2 张图片。一探究竟。我哪里错了？需要更多代码..？我可以更新，请告诉我。

1. 行布局类

    <?xml version="1.0" encoding="utf-8"?>
    <layout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
   <data>
   <variable
       name="lead"
       type="com.goplannr.model.LeadPojo" />
   
   <variable
       name="eventHandler"
      type="com.goplannr.fragment.contact.adapter.LeadClientRVAdapter" />
   
    </data>
   
   <android.support.constraint.ConstraintLayout
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_margin="8dp"
   android:background="@color/colorControlActivated"
   android:onClick="@{(v) -> eventHandler.onRowItemClick(v)}">
   
   .... got 4 items inside
   
   </android.support.constraint.ConstraintLayout>
   
   </layout>
   

2. 回收 View 适配器

    class LeadClientRVAdapter (private val leadDetailsList:ArrayList<LeadPojo>) :
   RecyclerView.Adapter<LeadClientRVAdapter.MyViewHolder>() {
   
    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
   val inflater = LayoutInflater.from(parent.context)
   val binding = RowLeadsClientsBinding.inflate(inflater)
   return MyViewHolder(binding)
   }
   
   override fun getItemCount(): Int = leadDetailsList.size
   
   override fun onBindViewHolder(holder: MyViewHolder, position: Int) = holder.bind(leadDetailsList[position])
   
   inner class MyViewHolder(private val binding: RowLeadsClientsBinding): RecyclerView.ViewHolder(binding.root){
   fun bind(item : LeadPojo){
       binding.lead = item
       binding.executePendingBindings()
   }}
   
   fun onRowItemClick(v: View){
   v.findNavController().navigate(R.id.action_contacts_fragment_to_lead_details_fragment)
   }}
   

具有数据绑定(bind) - 没有 -

另一点——我只在 Gradle 中有这个依赖 -> dataBinding { 启用真

没有别的

Answer 1

通货膨胀代码不正确。用这个

 val binding = RowLeadsClientsBinding.inflate(inflater, parent, false)