Kotlin, why the ending of numeric data is truncated & displayed - kotlin

In my app, the UID is 9 digits numeric data. I pass an ArrayList to the adapter, the onBindViewHolder will log full digits. But the ending digits of each entries will be differently truncated & showed in the card. When displaying 3 entries, the UIDs shown are 7 digits or 8 digits but never 9. The LinearLayout is containing the RecyclerView which display records as CardView. Why the number "truncated" before display? Any comment is really appreciated.
The activity that displaying the data is just responsible for retrieve data from firebase, add them into ArrayList then attach to the adapter. The entries of the list was checked.
MarritalView.xml
<?xml version="1.0" encoding="utf-8"?>
<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=".FactModule.smallactivities.FactMarritalView">
//...some views omitted
<LinearLayout
android:id="#+id/linearLayout999"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingHorizontal="5dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView15">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/marritalList"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
OnBindViewHolder
override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
val currentitem = marritalFactList[position]
holder.uid.text = currentitem.uid.toString()
Log.d(ContentValues.TAG, "Value is: ${holder.uid.text}") //display 9 digits
holder.ageGroup.text = currentitem.ageGroup
holder.husbandRace.text = currentitem.husbandRace
holder.divorceAfterYears.text = currentitem.divorceAfterYears.toString()
holder.country.text = currentitem.country
}
MarritalItems.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView 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:layout_margin="16dp"
app:cardCornerRadius="8dp"
app:cardElevation="8dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginVertical="6dp"
android:layout_marginStart="16dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Record UID "
android:textColor="#color/black"
android:textSize="24sp"
android:textStyle="bold" />
<TextView
android:id="#+id/tvMarritalUID"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:textColor="#color/black"
android:textSize="20sp" />
</LinearLayout>
//...more horizontal linear layout ommited
</LinearLayout>
</androidx.cardview.widget.CardView>
MarritalFact.kt
data class MarritalFact(
val uid:Int, val ageGroup:String, val husbandRace:String,
val divorceAfterYears:Int, val country:String, val username:String
){
constructor():this(0,"","",0,"","")
}

Related

Accessibility talk-back skips some of the items in staggered RecyclerView

Accessibility talkback skipping some of the items in RecyclerView with the Staggered layout manager.
Steps to reproduce the issue:
Run the project on any device (Verified in Samsung s10)
Enable Accessibility talkback in the device. Settings->Accessibility->Screen Reader->Voice Assistant
Do forward accessibility on the recycler view
Observe Some of the items are skipped
Recycler layout file:
<?xml version="1.0" encoding="utf-8"?>
<androidx.core.widget.NestedScrollView 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:id="#+id/nestedScrollView"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:importantForAccessibility="no"
android:orientation="horizontal">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/page_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:nestedScrollingEnabled="true"
app:layoutManager="androidx.recyclerview.widget.StaggeredGridLayoutManager" />
</LinearLayout>
</LinearLayout>
</androidx.core.widget.NestedScrollView>
Recycler Layout file:
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:focusable="true"
android:padding="20dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="20dp"
android:orientation="vertical">
<TextView
android:id="#+id/item_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
android:textAppearance="#style/TextAppearance.Material3.TitleMedium" />
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/item_image"
android:layout_width="200dp"
android:layout_height="200dp"
android:scaleType="fitCenter" />
</LinearLayout>
</com.google.android.material.card.MaterialCardView>
Find Screenshot here:
https://i.stack.imgur.com/yUEFp.jpg
Sample project and screen record available here:
https://issuetracker.google.com/issues/255525862

how to set items in GridLayoutManager fixed to start and end of parent with different span count

This is my RecyclerView :
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/add_transaction_pair_rec"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="23dp"
android:overScrollMode="never"
android:scrollbars="none"
android:visibility="visible"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/row_symbol_market_view_line"
app:layout_constraintTop_toTopOf="parent"
tools:itemCount="1"
tools:listitem="#layout/row_add_transaction_rec_pair" />
This is my row layout :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="#+id/row_rec_pair_name_txt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="#font/sans_regular"
android:paddingTop="#dimen/row_timeframe_mrg_tb"
android:paddingBottom="#dimen/row_timeframe_mrg_tb"
android:textAllCaps="true"
android:textColor="#color/auth_blue_gray54"
android:textSize="#dimen/symbol_ts" />
</LinearLayout>
I removed padding or marging from TextView in row layout, but it didn't work
i think making your row match parent and your text view gravity to center solves your problem.

Hopefully a simple Kotlin regarding looping through a recycler

I have a recycler in my activity for acrostic poetry. The recycler displays an image of the letters of the word (Stone Age, in this case) and an EditText to enter the acrostic words. What I want to do is read the words that have been entered, so for "Stone Age" I'm creating 8 items in the recycler.
In order to get the words, I have tried to replicate the steps in this question How to iterate over RecyclerView items. I think I'm close, but I can't quite get over the line.
I have this function where I am trying to read the values (at this stage just into the logcat)
I figured that getChildCount returned the items, but this is logging 2 (or sometimes, oddly, 3) rather than the 8 I would expect, so I'm struggling to understand what I am looping.
private fun saveTask() {
var p: String = ""
Log.d(HWG.TAG, "Children: ${acrosticRecycler.getChildCount().toString()}")
for (i in 0 until acrosticRecycler.getChildCount()) {
var holder: AcrosticAdapter.ViewHolder
if(acrosticRecycler.findViewHolderForAdapterPosition(i) != null) {
holder = acrosticRecycler.findViewHolderForAdapterPosition(i) as AcrosticAdapter.ViewHolder
p = holder.txtWord.text.toString()
Log.d(HWG.TAG, "Word: ${p}")
}
}
}
This is the layout of the recycler
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView 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:layout_marginRight="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="4dp"
app:cardCornerRadius="4dp"
app:cardElevation="6dp">
<LinearLayout
android:id="#+id/llTaskList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp">
<ImageView
android:id="#+id/imgLetter"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_gravity="center_vertical"
android:adjustViewBounds="true"
android:cropToPadding="true"
android:scaleType="centerCrop"
app:srcCompat="#drawable/icons8_s" />
<EditText
android:id="#+id/txtWord"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginStart="5dp"
android:layout_marginLeft="5dp"
android:hint="Stone Age"
android:textAllCaps="true"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
</androidx.cardview.widget.CardView>
This is the activity in which the recycler sits
<?xml version="1.0" encoding="utf-8"?>
<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"
android:background="#color/background"
tools:context=".TextualTask">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="24dp"
android:background="#color/background"
app:cardCornerRadius="4dp"
app:cardElevation="6dp"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="24dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp">
<ImageView
android:id="#+id/subjectImage"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_gravity="center_horizontal"
android:adjustViewBounds="true"
android:cropToPadding="true"
android:scaleType="centerCrop"
app:srcCompat="#drawable/icons8_knowledge_sharing_80" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp">
<TextView
android:id="#+id/txtTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginStart="10dp"
android:layout_marginLeft="15dp"
android:text="Acrostic Poem"
android:textAllCaps="true"
android:textSize="16sp"
android:textStyle="bold" />
</LinearLayout>
</LinearLayout>
<View
android:id="#+id/divider"
android:layout_width="match_parent"
android:layout_height="2dp"
android:layout_margin="6dp"
android:background="?android:attr/listDivider" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dp">
<TextView
android:id="#+id/txtPreamble"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginLeft="15dp"
android:text="Preamble text"
android:textAlignment="center"
android:textSize="14sp"
android:textStyle="bold|italic" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp">
<androidx.cardview.widget.CardView
android:id="#+id/crdWord"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="24dp"
app:cardBackgroundColor="#color/cardback"
app:cardCornerRadius="4dp"
app:cardElevation="6dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp">
<Button
android:id="#+id/btnSubmit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="6dp"
android:backgroundTint="#color/start"
android:text="Submit" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/acrosticRecycler"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:itemCount="5"
tools:listitem="#layout/acrostic_task" />
</LinearLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>
Oddly enough, sometime the for loop gets the values from items 0-2, but sometimes it doesn't. The call to saveTask is made from btnSubmit as I don't need to get the values at the point the user enters them, just when they're happy to submit.
Could someone point me in the right direction please?
You can't get the correct count from acrosticRecycler.getChildCount().
because acrosticRecycler.getChildCount() will return the count of currently showed item in the RecyclerView. So even if your data is 8, but the showed data in the screen is only 3 items. So you will always get 3 not 8.
It's not good practice to get the data from the ViewHolder in recycler view directly. You should get the data from the list you have inserted to recycler view adapter.
for example, you can create adapter like this :
class AcrosticAdapter(var listData: ArrayList<AcrosticPoetry>) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
override fun getItemCount(): Int = listData.size
}
//assuming this is your model class
class AcrosticPoetry() {
var textWord = ""
}
and you can change your code to
private fun saveTask() {
val adapter = acrosticRecycler.adapter as AcrosticAdapter
val data = adapter.listData
for (i in 0 until data.size) {
val word = data[i].txtWord
Log.d(HWG.TAG, "Word: ${word}")
}
}

MaterialCardView not showing when added programmatically

I am not able to see MaterialViewCard at my Activity when adding programmatically. If I add directly on XML, it shows. But When adding via Kotling, it doesn't.
XML sample:
<?xml version="1.0" encoding="utf-8"?>
<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=".SecondFragment">
<LinearLayout
android:id="#+id/layout_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent">
<LinearLayout
android:id="#+id/layout_first_block"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_weight="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<com.google.android.material.card.MaterialCardView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:cardBackgroundColor="#color/surface"
android:layout_margin="2dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="00"
android:textColor="#color/on_surface"/>
</com.google.android.material.card.MaterialCardView>
<com.google.android.material.card.MaterialCardView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:cardBackgroundColor="#color/surface"
android:layout_margin="2dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="01"
android:textColor="#color/on_surface"/>
</com.google.android.material.card.MaterialCardView>
<com.google.android.material.card.MaterialCardView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:cardBackgroundColor="#color/surface"
android:layout_margin="2dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="03"
android:textColor="#color/on_surface"/>
</com.google.android.material.card.MaterialCardView>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center"
android:layout_weight="1">
<Button
android:id="#+id/button_second"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/previous"/>
</LinearLayout>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
Result:
Cards added via XML
But when I try this (below) won't work.
XML:
<?xml version="1.0" encoding="utf-8"?>
<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=".SecondFragment">
<LinearLayout
android:id="#+id/layout_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent">
<LinearLayout
android:id="#+id/layout_first_block"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_weight="1">
<!-- Will add here-->
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center"
android:layout_weight="1">
<Button
android:id="#+id/button_second"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/previous"/>
</LinearLayout>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
Kotlin:
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
view.findViewById<Button>(R.id.button_second).setOnClickListener {
findNavController().navigate(R.id.action_SecondFragment_to_FirstFragment)
}
val layoutFirstBlock: LinearLayout = view.findViewById<LinearLayout>(R.id.layout_first_block)
for (r in 1..10){
val row: LinearLayout = LinearLayout(context)
row.orientation = LinearLayout.HORIZONTAL
row.layoutParams = LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT)
for(c in 1..10){
val card: MaterialCardView = MaterialCardView(context)
val marginParams: ViewGroup.MarginLayoutParams = ViewGroup.MarginLayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)
marginParams.setMargins(R.dimen.small_padding, R.dimen.small_padding, R.dimen.small_padding, R.dimen.small_padding)
card.layoutParams = marginParams
card.setBackgroundColor(resources.getColor(R.color.surface, context?.theme))
val num: TextView = TextView(context)
num.layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)
val value = ((r-1)*10 + c).toString()
num.text = value
num.setTextColor(resources.getColor(R.color.on_surface, context?.theme))
Log.d("i", "i$r$c = $value")
card.addView(num)
row.addView(card)
}
layoutFirstBlock.addView(row, 0)
}
}
Result: Cards missing when added by Kotlin
Any ideas?
Thanks!
In my case the issue was i have a component above the cardview and i have set its height to match_parent,when i gave the height to wrap_content the issue has been solved.
If it doesn't work also check in build gradle for below line.
implementation 'com.google.android.material:material:1.0.0'
Firstly,
You need to generate id's of each view as well.
val card: MaterialCardView = MaterialCardView(context)
card.id = View.generateViewId()
and
val num: TextView = TextView(context)
num.id = View.generateViewId()
Secondly,
I think, you should need to update index of
layoutFirstBlock.addView(row, 0)
to
layoutFirstBlock.addView(row, r)

Recyclerview multiple viewtype causes first row item expanded unexpectedly

I want to make something like this
so I am using a recyclerview which has two viewtype ( for the first item I am using one kind of viewholder and rest of item I am using another viewholder).
But on my device, it is showing like this
For the first viewholder I am using this layout file
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/attach_circle_imageview"
android:layout_width="80dp"
android:layout_height="80dp"
android:src="#drawable/attach_photo"
app:civ_border_color="#607D8A"
app:civ_border_width="1dp"
android:layout_marginLeft="14dp"
android:layout_marginBottom="14dp"/>
and for others, I am using this layout file
<android.support.v7.widget.CardView
android:layout_width="90dp"
android:layout_height="90dp"
android:layout_marginLeft="14dp"
android:layout_marginBottom="14dp"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
app:cardCornerRadius="10dp">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/gallary_iv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="#+id/white_bg_iv"
android:layout_width="30dp"
android:layout_height="30dp"
android:background="#drawable/pic_photo_number_bg"
app:layout_constraintBottom_toBottomOf="#+id/gallary_iv"
app:layout_constraintEnd_toEndOf="#+id/gallary_iv"
app:layout_constraintStart_toStartOf="#+id/gallary_iv"
app:layout_constraintTop_toTopOf="#+id/gallary_iv" />
<TextView
android:id="#+id/pic_count_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="1"
android:textSize="16sp"
android:textColor="#506876"
app:layout_constraintTop_toTopOf="#+id/white_bg_iv"
app:layout_constraintBottom_toBottomOf="#+id/white_bg_iv"
app:layout_constraintStart_toStartOf="#+id/white_bg_iv"
app:layout_constraintEnd_toEndOf="#id/white_bg_iv"/>
</android.support.constraint.ConstraintLayout>
In the first-row pictures height is expanded unexpectedly, how can I solve this problem?
set the first viewholder layout
android:layout_width="match_parent"
android:layout_height="match_parent"
change to
android:layout_width="90dp"
android:layout_height="90dp"