Я использую обзор рециркулятора (id recyclerView) внутри фрагмента (viewContractorsFragment), я раздул корневой вид макета фрагмента и инициализировал вид рециркулятора.Также соответствующие адаптеры и менеджеры компоновки настроены правильно. Но при загрузке фрагмент, содержащий представление утилита, пуст.
ViewContractorsFragment.kt
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".fragments.ViewContractorsFragment">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v7.widget.RecyclerView>
</FrameLayout>
contract_list_row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusable="true"
android:clickable="true"
android:padding="16dp"
android:background="?android:attr/selectableItemBackground"
android:orientation="vertical">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:backgroundTint="@color/colorWhite"
app:cardCornerRadius="8dp"
app:cardElevation="8dp">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="4dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="16dp"
android:orientation="vertical">
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tv_contractor_name"
android:text="Rana Prathap"
android:textStyle="bold"
android:textSize="24sp"
android:textColor="@android:color/black"
android:paddingTop="16dp"
android:paddingBottom="8dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Event Photographer"
android:id="@+id/tv_contractor_profession"
android:textAllCaps="true"
android:paddingBottom="8dp"
android:textSize="18sp"
android:textStyle="bold"
android:textColor="@android:color/holo_green_dark"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<RatingBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/rb_contractor_rating"
android:rating="4"
android:layout_marginTop="2dp"
android:paddingTop="8dp"
style="?android:attr/ratingBarStyleSmall"
android:numStars="5"
android:stepSize="0.5"
android:clickable="false"
android:focusable="false"
android:isIndicator="true"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tv_contractor_rating"
android:textSize="24sp"
android:layout_marginLeft="8dp"
android:textColor="@android:color/black"
android:textStyle="bold"
android:text="4.5"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:layout_width="125dp"
android:layout_height="100dp"
android:src="@mipmap/ic_health_fitness"
android:scaleType="fitXY"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginTop="4dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_phone_blue_24dp"
android:padding="8dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_message_blue_24dp"
android:padding="8dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_share_blue_24dp"
android:padding="8dp"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
ContractorAdapter.kt
class ContractorAdapter(val context: Context?, val contractorsList: List<Contractor>) : RecyclerView.Adapter<ContractorAdapter.ContractViewHolder>()
{
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ContractViewHolder {
val itemView = LayoutInflater.from(context).inflate(R.layout.contract_list_row,parent,false)
return ContractViewHolder(itemView)
}
override fun getItemCount(): Int {
return contractorsList.size
}
override fun onBindViewHolder(holder: ContractViewHolder, position: Int) {
val contractor = contractorsList[position]
holder.setData(contractor,position)
}
inner class ContractViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView){
fun setData(contractor: Contractor?, position: Int) {
itemView.tv_contractor_name.text = contractor!!.name
itemView.tv_contractor_profession.text = contractor!!.profession
itemView.tv_contractor_rating.text = contractor!!.rating.toString()
itemView.rb_contractor_rating.rating = contractor!!.rating
}
}
}
ViewContractorsFragment.kt
class ViewContractorsFragment : Fragment() {
private lateinit var recyclerViewContractors: RecyclerView
private lateinit var rootView: View
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
rootView = inflater.inflate(R.layout.fragment_view_contractors, container, false)
recyclerViewContractors = rootView.findViewById(R.id.recyclerView) as RecyclerView
initAdapter()
return view
}
override fun onResume() {
super.onResume()
// Showing and setting the title for the dashboard activity when the fragment is loaded
(activity as AppCompatActivity).supportActionBar!!.show()
(activity as AppCompatActivity).supportActionBar!!.title = resources.getString(R.string.view_contracts)
}
override fun onStop() {
super.onStop()
// Hiding the support action bar in the dashboard activity when fragment exits
(activity as AppCompatActivity).supportActionBar!!.hide()
}
private fun initAdapter() {
val layoutManager = LinearLayoutManager(activity)
layoutManager.orientation = LinearLayoutManager.VERTICAL
recyclerViewContractors.layoutManager = layoutManager
recyclerViewContractors.adapter = ContractorAdapter(activity, Supplier.contractorsList)
}
}