How to tell talkback NOT to include header to a count, when reading recycler view using talkback?
I have a RecyclerView with two types of Views: Header and Item When talkback is on, and header is selected it says:
"Header1 in list of 3 items" - including header, header is not really an item, it's just a header/title for the section, so it shouldn't be counted for.
My setup is pretty straightforward:
package com.example.myapplication
import android.content.Context
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val list = listOf<Item>(
Item("Header1", true),
Item("ItemA", false),
Item("ItemB", false),
Item("ItemC", false),
)
val adapter = SharedDataAdapter(this, list)
val recyclerView = findViewById<RecyclerView>(R.id.recyclerView)
recyclerView.layoutManager = LinearLayoutManager(applicationContext)
recyclerView.adapter = adapter
}
}
data class Item(val text: String, val isHeader: Boolean)
class SharedDataAdapter(
private val context: Context, private val dataList: List<Item>
) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
private val VIEW_TYPE_HEADER = 0
private val VIEW_TYPE_ITEM = 1
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
val inflater = LayoutInflater.from(context)
return if(viewType == VIEW_TYPE_HEADER){
val headerView = inflater.inflate(R.layout.header_layout, parent, false)
HeaderViewHolder(headerView)
} else {
val itemView = inflater.inflate(R.layout.list_item_layout, parent, false)
ItemViewHolder(itemView)
}
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
if(getItemViewType(position) == VIEW_TYPE_HEADER){
(holder as HeaderViewHolder).bindHeader(dataList[position])
} else {
(holder as ItemViewHolder).bindItem(dataList[position])
}
}
override fun getItemCount(): Int = dataList.size
override fun getItemViewType(position: Int): Int {
return if(dataList[position].isHeader) VIEW_TYPE_HEADER else VIEW_TYPE_ITEM
}
private class HeaderViewHolder(itemView: View): RecyclerView.ViewHolder(itemView){
private val headerTextView: TextView = itemView.findViewById(R.id.textView)
fun bindHeader(headerText: Item){
headerTextView.text = headerText.text
}
}
private class ItemViewHolder(itemView: View): RecyclerView.ViewHolder(itemView){
val itemTextView: TextView = itemView.findViewById(R.id.textView)
fun bindItem(itemText: Item){
itemTextView.text = itemText.text
}
}
}
ActivityMain.xml:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
header_layout.xml
<TextView android:id="@+id/textView"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:text="Header"
android:accessibilityHeading="true"
/>
list_item_layout.xml
<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="\u2022"
android:importantForAccessibility="no"
tools:ignore="HardcodedText" />
<TextView android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:text="Item"
/>
</androidx.appcompat.widget.LinearLayoutCompat>
