In some devices the recyclerview are flashing items and nothing more, after that, appear from items in row. I can't debug that because in emulator and my phone it doesn't happen.
Has anyone ever experienced that?
The correct thing would be to keep as the follow img:
I'm creating the RecyclerView as below, in SubItemsActivity:
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
subMainList = ArrayList()
subMainList = db.listSubItems("AND id_main_item=$mainId")
layoutManagerRecycler = LinearLayoutManager(this)
subMainItemsRecycler.layoutManager = layoutManagerRecycler
subMainItemsRecycler.addItemDecoration(DividerItemDecoration(this, 1))
var subMainAdapter = SubMainAdapter(this, subMainList, this, activate)
subMainAdapter.setHasStableIds(true)
subMainItemsRecycler.adapter = subMainAdapter
}
The recyclerView layout is here: I have two ConstraintLayouts, the main is the first, with id "prioritize_edit", the other layout will not appear in the image example.
<?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="wrap_content"
android:orientation="vertical">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/prioritize_edit"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/counter"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:textSize="17sp"
android:textStyle="bold"
android:textColor="@color/white"
android:paddingStart="4dp"
android:paddingEnd="2dp"
android:paddingVertical="7.5dp"
android:layout_marginTop="4dp"
android:layout_marginBottom="1dp"
android:background="#BFBFBF"
android:layout_marginStart="8dp"
android:gravity="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="@+id/arrows"
app:layout_constraintTop_toTopOf="parent" >
</TextView>
<ImageView
android:id="@+id/arrows"
android:src="@drawable/icon_arrow_bottom"
android:layout_height="0dp"
android:layout_width="15dp"
android:paddingEnd="1dp"
android:layout_marginTop="4dp"
android:layout_marginBottom="1dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@+id/counter"
app:layout_constraintEnd_toStartOf="@+id/check_item"
app:layout_constraintTop_toTopOf="parent">
</ImageView>
<CheckBox
android:id="@+id/check_item"
android:layout_width="30dp"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:layout_gravity="start|center_vertical"
android:gravity="start|center_vertical"
android:layout_marginStart="3dp"
android:layout_marginEnd="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@+id/arrows"
app:layout_constraintEnd_toStartOf="@+id/color_picker"
app:layout_constraintTop_toTopOf="parent" />
<Spinner
android:id="@+id/color_picker"
android:layout_width="35dp"
android:layout_height="wrap_content"
android:background="@null"
android:gravity="center"
android:layout_gravity="center"
android:layout_marginRight="5dp"
android:layout_marginEnd="5dp"
android:layout_marginLeft="13dp"
android:layout_marginStart="13dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@+id/check_item"
app:layout_constraintEnd_toStartOf="@+id/list_subitem"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="@+id/list_subitem"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="0dp"
android:layout_marginBottom="0dp"
android:textSize="17sp"
android:fontFamily="sans-serif-black"
android:textColor="@color/text_gray"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
app:layout_constrainedWidth="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@+id/color_picker"
app:layout_constraintEnd_toStartOf="@+id/menu_subitem"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="@+id/menu_subitem"
android:layout_width="40dp"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:paddingEnd="8dp"
android:src="@drawable/round_more_vert_black_36"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@+id/list_subitem"
app:layout_constraintEnd_toStartOf="@+id/draggable_subitem"
app:layout_constraintTop_toTopOf="parent"/>
<ImageView
android:id="@+id/draggable_subitem"
android:layout_width="42dp"
android:layout_height="42dp"
android:adjustViewBounds="true"
android:scaleType="fitCenter"
android:layout_marginStart="0dp"
android:layout_marginEnd="10dp"
android:layout_marginVertical="0dp"
android:src="@drawable/icon_draggable"
android:background="@null"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@+id/menu_subitem"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/prioritize_sub"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="visible"
android:layout_marginBottom="5dp">
<Button
android:id="@+id/prioritizer_button"
android:layout_width="0dp"
android:layout_height="45dp"
android:fontFamily="sans-serif-black"
android:text="@string/prioritize"
android:textColor="@color/white"
android:background="@color/colorPrimary"
android:alpha="0.80"
android:paddingHorizontal="15dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="15dp"
android:textSize="16sp"
app:layout_constrainedWidth="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@id/counter_invisible"/>
<TextView
android:id="@+id/counter_invisible"
android:visibility="invisible"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="17sp"
android:textStyle="bold"
android:textColor="@color/white"
android:paddingHorizontal="10dp"
android:paddingVertical="7.5dp"
android:layout_marginTop="7dp"
android:background="#BFBFBF"
android:layout_marginStart="8dp"
app:layout_constrainedWidth="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="@+id/prioritizer_button"/>
</androidx.constraintlayout.widget.ConstraintLayout>
My Adapter is this:
class SubMainAdapter(
var activity: SubMainActivity,
var items: MutableList<SubItems>,
var clickListener: OnSubMainItemClickListener,
var activate: Boolean
) : RecyclerView.Adapter<SubMainViewHolder>(){
override fun getItemCount(): Int {
return items.size
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SubMainViewHolder {
val itemView = LayoutInflater.from(parent.context).inflate(
R.layout.layout_subitem_view,
parent,
false
)
val viewHolder = SubMainViewHolder(itemView)
return viewHolder
}
@SuppressLint("ClickableViewAccessibility")
override fun onBindViewHolder(holder: SubMainViewHolder, position: Int) {
holder.initialize(
activity, items[position], clickListener, items.size,
items,
position
)
if (activate) {
holder.dragButton.visibility = View.VISIBLE
holder.check_item.visibility = View.GONE
holder.menuButton.visibility = View.GONE
} else {
holder.dragButton.visibility = View.GONE
holder.check_item.visibility = View.VISIBLE
holder.menuButton.visibility = View.VISIBLE
}
holder.dragButton.setOnTouchListener { v, event ->
if(event.actionMasked== MotionEvent.ACTION_DOWN){
v.performClick()
activity.touchHelper?.startDrag(holder)
}
false
}
}
override fun getItemId(position: Int): Long {
val subItems: SubItems = items[position]
return subItems.id.toLong()
}
override fun getItemViewType(position: Int): Int {
return position
}
}
class SubMainViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView){
var subMainItem = itemView.list_subitem
var counter = itemView.counter
var arrows = itemView.arrows
var counterInvisible = itemView.counter_invisible
var prioritizeSub = itemView.prioritize_sub
var prioritizerButton = itemView.prioritizer_button
var prioritizeEdit = itemView.prioritize_edit
var check_item = itemView.check_item
var deleteButton = R.id.trash_subitem
var menuButton = itemView.menu_subitem
var dragButton = itemView.draggable_subitem
var color_picker = itemView.color_picker
fun initialize(
activity: SubMainActivity,
item: SubItems,
action: OnSubMainItemClickListener,
sizeArrayItems: Int,
listItems: MutableList<SubItems>,
position: Int
){
// var counterValue: String = item.list_order.toString()
// var digitsNumber: Int = sizeArrayItems.toString().length
// while (counterValue.length<digitsNumber){
// counterValue = "0$counterValue"
// }
var counterValue: String = item.path_index
subMainItem.setText(item.sub_item)
counterInvisible.text = "$counterValue"
counter.text = "$counterValue"
counter.setBackgroundColor(Color.parseColor("#a5a5a5"))
counter.background.alpha = if(item.max_level==0) 0 else (255*item.level)/item.max_level
arrows.setBackgroundColor(Color.parseColor("#a5a5a5"))
arrows.background.alpha = if(item.max_level==0) 0 else (255*item.level)/item.max_level
val prevItem = if(position <= listItems.size){listItems[position]}else{if(position-1 <= listItems.size){listItems[position]}else{listItems[position - 1]}}
val childs = item.direct_childs
val nextItem = if(position >= listItems.size){listItems[position]}else{if(position+1 >= listItems.size){listItems[position]}else{listItems[position + 1]}}
if(childs==0){
arrows.setImageResource(R.drawable.icon_arrow_right)
}else{
if(nextItem.visibility == 0){
arrows.setImageResource(R.drawable.icon_arrow_right)
}else {
arrows.setImageResource(R.drawable.icon_arrow_bottom)
}
arrows.setOnClickListener {
action.toggleSubItems(item, adapterPosition, itemView)
}
counter.setOnClickListener {
action.toggleSubItems(item, adapterPosition, itemView)
}
}
if (item.prioritizeButton){
prioritizeSub.visibility = View.VISIBLE
val prioritizeString = activity.getString(R.string.prioritize)
val finalStr = String.format(prioritizeString, item.path_index)
prioritizerButton.text = finalStr
prioritizerButton.setOnClickListener{
action.onPrioritizeItemsClick(item)
}
prioritizeEdit.visibility = View.GONE
}else{
prioritizeSub.visibility = View.GONE
prioritizeEdit.visibility = View.VISIBLE
}
val param = itemView.layoutParams as RecyclerView.LayoutParams
if (item.visibility==1) {
param.height = LinearLayout.LayoutParams.WRAP_CONTENT
param.width = LinearLayout.LayoutParams.MATCH_PARENT
itemView.visibility = View.VISIBLE
} else {
itemView.visibility = View.GONE
param.height = 0
param.width = 0
}
itemView.layoutParams = param
if (item.checked==Constants.TRUE){
check_item.isChecked = true
subMainItem.setTextColor(ContextCompat.getColor(activity, (R.color.checked)))
counter.setTextColor(ContextCompat.getColor(activity, (R.color.checked)))
subMainItem.apply {
paintFlags = paintFlags or Paint.STRIKE_THRU_TEXT_FLAG
}
counter.apply {
paintFlags = paintFlags or Paint.STRIKE_THRU_TEXT_FLAG
}
}else{
check_item.isChecked = false
subMainItem.setTextColor(ContextCompat.getColor(activity, (R.color.text_grayer)))
counter.setTextColor(ContextCompat.getColor(activity, (R.color.text_gray_darker)))
subMainItem.apply {
paintFlags = paintFlags and Paint.STRIKE_THRU_TEXT_FLAG.inv()
}
counter.apply {
paintFlags = paintFlags and Paint.STRIKE_THRU_TEXT_FLAG.inv()
}
}
check_item.setOnClickListener{
action.onCheckItemClick(item, adapterPosition, itemView)
}
menuButton.setOnClickListener{
val popup = PopupMenu(activity, menuButton)
popup.inflate(R.menu.submain_options)
popup.setOnMenuItemClickListener(object : PopupMenu.OnMenuItemClickListener {
override fun onMenuItemClick(menuItem: MenuItem): Boolean {
when (menuItem.itemId) {
R.id.trash_subitem -> {
action.onExcludeItemClick(item, adapterPosition)
return true
}
R.id.add_sub_subitem -> {
action.onAddChildItemClick(item, adapterPosition)
return true
}
R.id.prioritize_sub_subitem -> {
action.manageDragButtons(true, item.id, item.direct_childs)
return true
}
else -> return false
}
}
})
popup.show()
}
val textWatcher = object : TextWatcher {
override fun afterTextChanged(s: Editable?) {}
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}
override fun onTextChanged(
text: CharSequence?,
start: Int,
before: Int,
count: Int
) {
action.onKeyDownItem(item, itemView, text)
}
}
subMainItem.addTextChangedListener(textWatcher)
color_picker.adapter = CustomSpinnerAdapter(
color_picker.context,
listOf(
SpinnerData(R.drawable.white_arrow),
SpinnerData(R.drawable.red_arrow),
SpinnerData(R.drawable.orange_arrow),
SpinnerData(R.drawable.yellow_arrow),
SpinnerData(R.drawable.green_arrow),
SpinnerData(R.drawable.blue_arrow),
SpinnerData(R.drawable.turquoise_arrow),
SpinnerData(R.drawable.purple_arrow)
)
)
// var checkSpinner: Int = 0
color_picker.isSelected = false;
color_picker.setSelection(item.color, false)
color_picker.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
override fun onItemSelected(
adapterView: AdapterView<*>?,
view: View,
spinnerPosition: Int,
l: Long
) {
// if(++checkSpinner > 1) {
action.onSpinnerChange(item, spinnerPosition)
// }
}
override fun onNothingSelected(adapterView: AdapterView<*>?) {
return
}
}
}
}
interface OnSubMainItemClickListener{
fun onCheckItemClick(item: SubItems, position: Int, view: View)
fun onExcludeItemClick(item: SubItems, position: Int)
fun onAddChildItemClick(item: SubItems, position: Int)
fun onPrioritizeItemsClick(item: SubItems)
fun onKeyDownItem(item: SubItems, view: View, text: CharSequence?)
fun onChangeItem(item: SubItems, view: View, text: CharSequence?)
fun onSpinnerChange(item: SubItems, spinnerPosition: Int)
fun manageDragButtons(activate: Boolean, parentId: Int, childs: Int)
fun toggleSubItems(item: SubItems, position: Int, view: View)
}
As I'm using setHasStableIds(true) I've tried to change the getItemId function in adapter, but the problem remains. Has anyone had a similar problem?
from RecyclerView flashing data at start turning the rows invisible
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