I am using a recyclerview(id recyclerView) inside a fragment(viewContractorsFragment), I have inflated the root view of the fragment layout and initialized the recycler view. Also the respective adapter and layout managers are set properly. But when loaded the fragment containing the recyclerview is blank.
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)
}
}
You are inflating the fragment layout into rootView and using a different variable view to return
Modify it as below
If the issue still persists, check if
Supplier.contractorsListhas the data