Hide Scrollview behind Imageview and vice-versa in android

Hide Scrollview behind Imageview and vice-versa in android - android

I am an amateur in android studio and kotlin. I am implementing a dashboard where I have frame layout as the bodylayout and is replaced by different fragments when each item on the bottomnavigationview is clicked. However, for one particular item I need to use two view, imageview and a scrollview. So, when the progress bar in the scrollview contains no progress, I have to show the Imageview hiding the scrollview and also disabling the scroll at that time. But When there is some progress in the progressbar in the scrollview, scrollview with it's content should be shown and not the imageview.
I have seen some answers int he same context but it didn't work for me. So, I would like to know how to do it? Am I doing it wrong.
The code snippet is below.
class ProgressFragment : Fragment() {
val TAG = "ProgressFragment"
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_progress, container, false)
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
progress_progressbar2?.setProgress(5)
progress_progressbar2?.max=15
if (progress_progressbar2?.progress!!.equals(0)){
started_image?.bringToFront()
progress_scrollview?.invalidate()
}
else{
progress_scrollview?.bringToFront()
started_image?.invalidate()
navigation_header_container?.setImageResource(R.drawable.header_pink)
}
}
}
I am calling this fragment in the mainactivity and replacing the framelayout with this fragment in the mainactivity.
The activity_main.xml layout is given below.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/main"
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="#mipmap/bg"
tools:context=".MainActivity">
<ImageView
android:id="#+id/navigation_header_container"
android:layout_width="match_parent"
android:layout_height="65dp"
android:scaleY="1.5"
android:scaleX="2"
android:src="#drawable/header_green"
/>
<FrameLayout
android:id="#+id/main_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="75dp"
android:layout_above="#id/bottom_nav"
android:layout_alignParentStart="true"
android:layout_below="#+id/navigation_header_container"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottom_nav"
android:layout_width="match_parent"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
app:itemBackground="#color/colorWhite"
app:itemTextColor="#color/nav_item_colors"
app:menu="#menu/bottom_navigation">
</android.support.design.widget.BottomNavigationView>
<TextView
android:id="#+id/header_text"
android:layout_width="156dp"
android:layout_height="39dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="12dp"
android:gravity="center"
android:textSize="20dp"
android:textColor="#200"
android:textStyle="bold"
android:text="TextView" />
<!--app:itemIconTint="#color/nav_item_colors"-->
<!--app:itemTextColor="#color/nav_item_colors"-->
</RelativeLayout>
The progress layout is given below.
<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=".ProgressFragment">
<!-- TODO: Update blank fragment layout -->
<ScrollView
android:id="#+id/progress_scrollview"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:id="#+id/progress_parentrelayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:id="#+id/progress_child1relayout"
android:layout_width="190dp"
android:layout_height="280dp">
<TextView
android:id="#+id/quadrant1_textview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="60sp"
android:layout_marginTop="90dp"
android:gravity="center"
android:text="Min"
android:textColor="#200"
android:textSize="18sp"
android:textStyle="bold" />
<ProgressBar
android:id="#+id/progress_progressbar1"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="90dp"
android:layout_height="wrap_content"
android:layout_marginLeft="35dp"
android:layout_marginTop="140dp"
android:progressDrawable="#drawable/customprogressbar" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/progress_child2relayout"
android:layout_width="190dp"
android:layout_height="280dp"
android:layout_below="#+id/progress_child1relayout">
<TextView
android:id="#+id/quadrant2_textview1"
android:layout_width="90dp"
android:layout_height="wrap_content"
android:layout_marginLeft="40sp"
android:layout_marginStart="40sp"
android:layout_marginTop="70dp"
android:text="Challenge Status"
android:textColor="#200"
android:textSize="18sp"
android:textStyle="bold" />
<ProgressBar
android:id="#+id/progress_progressbar2"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="90dp"
android:layout_height="wrap_content"
android:layout_marginLeft="40dp"
android:layout_marginStart="40dp"
android:layout_marginTop="160dp"
android:progressDrawable="#drawable/customprogressbar" />
<TextView
android:id="#+id/quadrant2_textview2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="42dp"
android:layout_marginTop="130dp"
android:text="Completed"
android:textColor="#200"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="#+id/quadrant2_textview3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="45dp"
android:layout_marginTop="190dp"
android:text="open"
android:textColor="#200"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="#+id/quadrant2_textview4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="45dp"
android:layout_marginTop="230dp"
android:text="0"
android:textColor="#200"
android:textSize="18sp"
android:textStyle="bold" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/progress_child3relayout"
android:layout_width="190dp"
android:layout_height="280dp"
android:layout_toRightOf="#+id/progress_child1relayout">
<TextView
android:id="#+id/quadrant3_textview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="60sp"
android:layout_marginTop="90dp"
android:gravity="center"
android:text="TextView"
android:textColor="#200"
android:textSize="18sp"
android:textStyle="bold" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/progress_child4relayout"
android:layout_width="190dp"
android:layout_height="280dp"
android:layout_below="#id/progress_child3relayout"
android:layout_toRightOf="#+id/progress_child2relayout">
<TextView
android:id="#+id/quadrant4_textview1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_marginLeft="60sp"
android:layout_marginTop="70dp"
android:text="Pods Mastered"
android:textColor="#200"
android:textSize="18sp"
android:textStyle="bold" />
<me.zhanghai.android.materialprogressbar.MaterialProgressBar
android:id="#+id/circularprogress"
android:layout_width="150dp"
android:layout_height="70dp"
android:layout_marginLeft="15dp"
android:layout_marginTop="130dp"
android:progress="20" />
<!--<ProgressBar-->
<!--android:id="#+id/progress_progressbar3"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content"-->
<!--android:layout_marginTop="120dp"-->
<!--android:layout_marginLeft="50sp"-->
<!--android:indeterminateDrawable="#drawable/ringprogressbar"-->
<!--android:max="100"-->
<!--android:progress="20"-->
<!--style="?android:attr/progressBarStyleLarge" />-->
</RelativeLayout>
<TextView
android:id="#+id/whatdoesthis_mean"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:layout_marginTop="580dp"
android:clickable="true"
android:gravity="center"
android:text="What does this mean?"
android:textColor="#200"
android:textSize="15dp"
android:textStyle="bold" />
<ImageView
android:id="#+id/child_button"
android:layout_width="344dp"
android:layout_height="79dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="620dp"
android:src="#drawable/pinkcolor"
android:text="child name" />
<TextView
android:id="#+id/child_name_text"
android:layout_width="184dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="11dp"
android:fontFamily="sans-serif"
android:gravity="center"
android:text="Child Name"
android:textColor="#190fdf"
android:textSize="30sp"
android:textStyle="bold" />
</RelativeLayout>
</ScrollView>
<ImageView
android:id="#+id/started_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/letsgetstarted"
android:background="#ebcac3c7"
/>
</FrameLayout>
Any help is appreciated.

Fragments don't create the view in OnCreate unlike the Activity. The same can be understood through the life-cycle of a fragment. Moreover, this is one of the major differences between an activity life-cycle and a fragment life-cycle. So, instead of assigning the values in the OnCreate, it should be done in OnViewCreated.
The code snippet could be modified to:
class ProgressFragment : Fragment() {
val TAG = "ProgressFragment"
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_progress, container, false)
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
progress_progressbar2?.setProgress(12)
progress_progressbar2?.max=15
val currentProgress = progress_progressbar2?.progress ?: 0
if (currentProgress == 0){
started_image?.visibility = View.VISIBLE
progress_scrollview?.visibility = View.GONE
} else {
started_image?.visibility = View.GONE
progress_scrollview?.visibility = View.VISIBLE
navigation_header_container?.setImageResource(R.drawable.header_pink)
}
}
}
The condition and static/dynamic progress assignment can be done in the OnResume method also.
Thank you Vishnu.

val currentProgress = progress_progressbar2?.progress ?: 0
if (currentProgress == 0){
started_image?.visibility = VISIBLE
progress_scrollview?.visibilty = GONE
} else {
started_image?.visibility = GONE
progress_scrollview?.visibilty = VISIBLE
navigation_header_container?.setImageResource(R.drawable.header_pink)
}
Instead of bringToFront you manage it using the visibility of the views.
Android Documentation : https://developer.android.com/reference/android/view/View.html#setVisibility(int)
Try this out

Related

How to click view in LinearLayout?

There are multiple selectable TextView in the Dialog.
I'm looking for a way to get text values by selecting multiple views in a LinearLayout over and over.
As the first method, I thought of how to set the click event after setting the variables of each view. But this makes the code too long and messy.
As a second method, I thought of using the RecyclerView to place the view and set the click event.
It sounds like a good method, but it seems inefficient because the number of items is so small that it makes no sense to use RecyclerView.
How can I set up a click event that gets the values of the views in the LinearLayout?
XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/ll_body_part"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:orientation="vertical">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white">
<TextView
android:id="#+id/back"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:text=" BACK "
android:textSize="20dp"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:padding="15dp" />
<ImageView
android:id="#+id/selection_state1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_dumbbell"
android:backgroundTint="#android:color/transparent"
android:layout_gravity="center_vertical|end"
android:layout_marginRight="20dp"
android:visibility="invisible"/>
</FrameLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white">
<TextView
android:id="#+id/chest"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=" CHEST "
android:textSize="20dp"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:padding="15dp" />
<ImageView
android:id="#+id/selection_state2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_dumbbell"
android:backgroundTint="#android:color/transparent"
android:layout_gravity="center_vertical|end"
android:layout_marginRight="20dp"
android:visibility="invisible"/>
</FrameLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white">
<TextView
android:id="#+id/leg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=" LEG "
android:textSize="20dp"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:padding="15dp" />
<ImageView
android:id="#+id/selection_state3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_dumbbell"
android:backgroundTint="#android:color/transparent"
android:layout_gravity="center_vertical|end"
android:layout_marginRight="20dp"
android:visibility="invisible"/>
</FrameLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white">
<TextView
android:id="#+id/shoulder"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=" SHOULDER "
android:textSize="20dp"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:padding="15dp" />
<ImageView
android:id="#+id/selection_state4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_dumbbell"
android:backgroundTint="#android:color/transparent"
android:layout_gravity="center_vertical|end"
android:layout_marginRight="20dp"
android:visibility="invisible"/>
</FrameLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white">
<TextView
android:id="#+id/bieceps"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=" BICEPS "
android:textSize="20dp"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:padding="15dp" />
<ImageView
android:id="#+id/selection_state"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_dumbbell"
android:backgroundTint="#android:color/transparent"
android:layout_gravity="center_vertical|end"
android:layout_marginRight="20dp"
android:visibility="invisible"/>
</FrameLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white">
<TextView
android:id="#+id/triceps"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=" TRICEPS "
android:textSize="20dp"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:padding="15dp" />
<ImageView
android:id="#+id/selection_state6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_dumbbell"
android:backgroundTint="#android:color/transparent"
android:layout_gravity="center_vertical|end"
android:layout_marginRight="20dp"
android:visibility="invisible"/>
</FrameLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white">
<TextView
android:id="#+id/abs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text=" ABS "
android:textSize="20dp"
android:background="?attr/selectableItemBackground"
android:gravity="center"
android:padding="15dp" />
<ImageView
android:id="#+id/selection_state7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_dumbbell"
android:backgroundTint="#android:color/transparent"
android:layout_gravity="center_vertical|end"
android:layout_marginRight="20dp"
android:visibility="invisible"/>
</FrameLayout>
<Button
android:id="#+id/check"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="START"
android:textSize="27dp"
android:backgroundTint="#color/purple_200"/>
</LinearLayout>
This is the code I tried.
class BodyPartDialogFragment : DialogFragment(), View.OnClickListener{
private lateinit var ll: LinearLayout
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
val view: View = inflater.inflate(R.layout.fragment_body_part_dialog, container, false)
ll = view.findViewById(R.id.ll_body_part)
ll.setOnClickListener {
onClick(it)
}
return view
}
override fun onClick(view: View?) {
when (view?.id) {
R.id.back -> Toast.makeText(context, "back", Toast.LENGTH_LONG)
R.id.chest -> Toast.makeText(context, "chest", Toast.LENGTH_SHORT)
R.id.leg -> Toast.makeText(context, "leg", Toast.LENGTH_SHORT)
R.id.shoulder -> Toast.makeText(context, "shoulder", Toast.LENGTH_SHORT)
R.id.bieceps -> Toast.makeText(context, "biceps", Toast.LENGTH_SHORT)
R.id.triceps -> Toast.makeText(context, "triceps", Toast.LENGTH_SHORT)
R.id.abs -> Toast.makeText(context, "abs", Toast.LENGTH_SHORT)
}
}
}
It seems that the entire LinearLayout is selected
Please tell me what to do
Should I just use Recycler View?

You are not clicking the views, you are clicking the linear layout
ll.setOnClickListener {
onClick(it) //it here is view, which in this case is the linear layout
}
So if you want to only select the TextView and is always going to be a TextView the view you need, you can iterate through them:
fun addClickListeners(viewGroup: ViewGroup) {
for (i in 0 until viewGroup.childCount) {
val candidate = viewGroup.childAt(i) as? TextView
if (candidate != null) {
candidate.setOnClickListener {
it.text.toString() //do something
}
} else {
(viewGroup.childAt(i) as? ViewGroup)?.let {
addClickListeners(it) //recursive for inner childs
}
}
}
}
Then call it like this
addClickListeners(ll)
Regarding if you should use or not a RecyclerView that is up to you. If your evaluation is the requirement is low enough for trusting that is always gonna be a TextView then do that. If you think it can increase the scope then use a RecyclerView. If you think there is gonna be a middle point where things grow but not that much, create a custom view.

Disable certain part of fragment for scrolling even though it's inside a nested scrollview

Currently I am finishing the last details of my project and I am trying to keep a certain part inside a nested scrollview to stay on top of the screen and let only the recyclerview scroll.
This is the code I have right now:
<?xml version="1.0" encoding="utf-8"?>
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="#+id/marktplaats_refresh"
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">
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView14"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:tint="#9F000000"
app:layout_constraintCircleRadius="10dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/offer_bg"/>
<Button
android:id="#+id/verkoopEenProduct"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:layout_marginEnd="10dp"
android:background="#null"
android:text="Verkoop een product"
android:textColor="#color/white"
android:textSize="12sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<EditText
android:id="#+id/button5"
android:layout_width="0dp"
android:layout_height="50dp"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:layout_marginEnd="10dp"
android:background="#drawable/light_contact_buttons"
android:hint="Zoek in marktplaats"
android:textAlignment="center"
android:gravity="center_vertical"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView33"/>
<TextView
android:id="#+id/textView32"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginEnd="10dp"
android:text="Marktplaats"
android:textColor="#color/white"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/verkoopEenProduct"/>
<TextView
android:id="#+id/textView33"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:text="Hier vind u alles wat u nodig\nhebt voor uw praktijk"
android:textColor="#color/white"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView32"/>
<TextView
android:id="#+id/textView34"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:text="Alle producten"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/imageView14"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/marktplaats_recyclerview"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView34"/>
<Button
android:id="#+id/button11"
android:translationX="-20dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="#null"
android:rotation="180"
android:text="➜"
android:textColor="#color/white"
android:textSize="36sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
And this is my kotlin
class MarktplaatsOverview : ApplicationFragment(){
var products: Array<MarketModel> = arrayOf()
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
super.onCreateView(inflater, container, savedInstanceState)
return inflater.inflate(R.layout.fragment_marktplaats, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
marktplaats_refresh.setOnRefreshListener {
refreshData()
marktplaats_refresh.isRefreshing = false
}
button11.setOnClickListener {
navController.navigate(R.id.action_marktplaatsOverview_to_more)
}
button5.requestFocus()
refreshData()
verkoopEenProduct.setOnClickListener {
navController.navigate(R.id.action_marktplaatsOverview_to_marktplaatsDetail)
}
}
private fun refreshData() {
if (DataStorage.market.isNotEmpty()) {
setupRecyclerView()
} else {
SharedInstance.api.getAllMarketItems {
if (isAdded) {
setupRecyclerView()
}
}
}
}
private fun setupRecyclerView(){
SharedInstance.api.getAllMarketItems {
products = DataStorage.market
val xLayoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, true)
xLayoutManager.stackFromEnd = true
marktplaats_recyclerview.layoutManager = xLayoutManager
marktplaats_recyclerview.adapter = MarktplaatsAdapter(products)
}
}
}
Does anyone have a solution for this awkward problem? I've been trying to do some restructuring of the swiperefreshlayout, scrollviews and constraints but no succes so far.
I also can't find anything on the internet where someone wants the same as me...

As per your question description, I am assuming that you face an issue that recycler view scroll or take focus automatically while you open screen and you need to stick layout at the top so pass this field on your parent layout.
android:descendantFocusability="blocksDescendants"
or replace your SwipeRefreshLayout
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="#+id/marktplaats_refresh"
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:descendantFocusability="blocksDescendants"
android:layout_height="match_parent">
I hope it helps you.

All RecyclerView items are not visible when using RecyclerView in ConstraintLayout

I am using ConstraintLayout as a parent and put recyclerview in it to populate the list. Suppose I have to give item count 5 to populate the list and run the code then the list is showing perfectly but the last item of the recyclerview is showing half and not fully visible, and scroll stops at there. I found a solution for this is if am giving height match_parent to the recyclerview then it works fine but then all other view is hidden behind the recyclerview.
If I use another parent view like LinearLayout or RelativeLayout, then recyclerview with height wrap_content works fine and all the list item are fully visible.
I have tried by 2 ways that work for me but I found that wrong programming practice
I give height match_parent to recyclerview and give top_margin to the recylerview so all the other UI item show.
I give padding_bottom to the recyclerview until all the list item position visible
My XML file "activity_per_day_sale.xml" is below.
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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:background="#color/black">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:popupTheme="#style/AppTheme.PopupOverlay">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical">
<ImageView
android:layout_width="40dp"
android:layout_height="40dp"
android:id="#+id/btn_back"
android:padding="5dp"
android:onClick="OnClickPerDaySale"
android:background="?attr/selectableItemBackground"
android:src="#drawable/icon_back_white"
/>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Signup"
android:layout_centerInParent="true"
android:id="#+id/home_title_text"
android:textColor="#color/black"
android:visibility="gone"
android:fontFamily="#font/seguisb"
android:textSize="18sp"/>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="SKIP"
android:padding="10dp"
android:layout_centerVertical="true"
android:visibility="gone"
android:id="#+id/skip"
android:textColor="#color/black"
android:fontFamily="#font/seguisb"
android:textSize="18sp"/>
</RelativeLayout>
</android.support.v7.widget.Toolbar>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="25sp"
android:layout_marginTop="10dp"
android:text="Per Day Sale Details"
android:textColor="#color/yellow_app_logo_color"
android:fontFamily="#font/segoeuib"
app:layout_constraintTop_toBottomOf="#+id/toolbar"
app:layout_constraintStart_toStartOf="parent"
android:id="#+id/TV_signupScreenText"
android:layout_marginLeft="45dp"/>
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/rv_perday_sale"
android:layout_marginTop="10dp"
android:layout_marginHorizontal="10dp"
app:layout_constraintTop_toBottomOf="#+id/TV_signupScreenText"/>
</android.support.constraint.ConstraintLayout>
Activity class is "PerDaySaleActivity.kt"
import android.content.Context
import android.content.Intent
import android.os.Bundle
import android.support.v7.widget.StaggeredGridLayoutManager
import android.view.View
import com.nq.NQManager.R
import com.nq.NQManager.utils.BaseActivity
import kotlinx.android.synthetic.main.activity_per_day_sale.*
class PerDaySaleActivity:BaseActivity(){
var adapterPerdaySale : AdapterPerdaySale? = null
companion object {
fun start(context: Context) {
val starter = Intent(context, PerDaySaleActivity::class.java)
context.startActivity(starter)
}
}
override fun getID(): Int {
return R.layout.activity_per_day_sale
}
override fun iniView(savedInstanceState: Bundle?) {
initViews()
}
fun OnClickPerDaySale(v: View){
when(v){
btn_back->{
finish()
}
}
}
fun initViews() {
adapterPerdaySale = AdapterPerdaySale( this)
rv_perday_sale.layoutManager = StaggeredGridLayoutManager(1, 1)
rv_perday_sale.adapter = adapterPerdaySale
}
private fun setUpRecyclerView() {
runOnUiThread { adapterPerdaySale!!.notifyDataSetChanged() }
}
My Adapter class "AdapterPerdaySale.kt"
mport android.content.Context
import android.support.v7.widget.RecyclerView
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.nq.NQManager.R
import kotlinx.android.synthetic.main.adapter_perday_sale.view.*
class AdapterPerdaySale(context: Context):
RecyclerView.Adapter<AdapterPerdaySale.MyViewHOlder>() {
private var ctx:Context?=context
override fun onCreateViewHolder(p0: ViewGroup, p1: Int): MyViewHOlder {
return MyViewHOlder(LayoutInflater.from(ctx).inflate(R.layout.adapter_perday_sale, p0, false))
}
override fun getItemCount(): Int {
return 5
}
override fun onBindViewHolder(holder: MyViewHOlder, position: Int) {
if (position==1){
holder.tv_date.text="26 June, 2019"
}else if(position==2){
holder.tv_date.text="27 June, 2019"
}
}
inner class MyViewHOlder(view: View) : RecyclerView.ViewHolder(view) {
val tv_date=view.tv_date
}
}
My Adapter xml file "adapter_perday_sale.xml"
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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:paddingVertical="5dp"
android:background="#color/black">
<TextView
android:id="#+id/tv_date"
android:layout_below="#+id/txt_today"
android:layout_centerHorizontal="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/white"
android:fontFamily="#font/segoeuib"
android:text="25 June, 2019"
android:textSize="23sp"
android:layout_marginEnd="8dp" app:layout_constraintEnd_toEndOf="parent"
android:layout_marginRight="8dp" android:layout_marginStart="8dp"
app:layout_constraintStart_toStartOf="parent"
android:layout_marginLeft="8dp" android:layout_marginTop="8dp"
app:layout_constraintTop_toTopOf="parent"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/linearLayout1"
android:orientation="horizontal"
app:layout_constraintTop_toBottomOf="#+id/tv_date">
<LinearLayout
android:layout_width="0dp"
android:layout_weight="1"
android:layout_gravity="center"
android:gravity="center"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="25sp"
android:layout_marginTop="5dp"
android:text="Orders"
android:layout_centerHorizontal="true"
android:textColor="#color/white"
android:fontFamily="#font/segoeuib"/>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="50sp"
android:layout_marginTop="0dp"
android:text="50"
android:layout_centerHorizontal="true"
android:textColor="#color/order_history_txt_color"
android:fontFamily="#font/segoeui"/>
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_weight="1"
android:gravity="center"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="25sp"
android:layout_marginTop="5dp"
android:text="Revenue"
android:layout_centerHorizontal="true"
android:textColor="#color/white"
android:fontFamily="#font/segoeuib"/>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="50sp"
android:layout_marginTop="0dp"
android:text="£550"
android:layout_centerHorizontal="true"
android:textColor="#color/order_history_txt_color"
android:fontFamily="#font/segoeui"/>
</LinearLayout>
</LinearLayout>
<View android:layout_width="match_parent"
android:layout_height="1.5dp"
android:background="#color/gray"
android:id="#+id/view_1"
app:layout_constraintTop_toBottomOf="#+id/linearLayout1"
android:layout_marginLeft="8dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp"
app:layout_constraintStart_toStartOf="parent"
android:layout_marginStart="8dp"/>
</android.support.constraint.ConstraintLayout>

Add this app:layout_constraintBottom_toBottomOf="parent" property to your recyclerview
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:popupTheme="#style/AppTheme.PopupOverlay">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical">
<ImageView
android:id="#+id/btn_back"
android:layout_width="40dp"
android:layout_height="40dp"
android:background="?attr/selectableItemBackground"
android:onClick="OnClickPerDaySale"
android:padding="5dp"
android:src="#drawable/ic_background" />
<TextView
android:id="#+id/home_title_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Signup"
android:textColor="#000"
android:textSize="18sp"
android:visibility="gone" />
<TextView
android:id="#+id/skip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:padding="10dp"
android:text="SKIP"
android:textColor="#000"
android:textSize="18sp"
android:visibility="gone" />
</RelativeLayout>
</androidx.appcompat.widget.Toolbar>
<TextView
android:id="#+id/TV_signupScreenText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="45dp"
android:layout_marginTop="10dp"
android:text="Per Day Sale Details"
android:textColor="#AD4E4E"
android:textSize="25sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/toolbar" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rv_perday_sale"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="#+id/TV_signupScreenText" />
</androidx.constraintlayout.widget.ConstraintLayout>

How to fix a Recyclerview that doesn't scroll smoothly?

I am using a RecyclerView with LinearLayoutManager to fetch Data that I get from my API using Retrofit.
The problem is whenever I try to scroll down it goes to the first position.
Some answers on Github & Here, suggested decreasing the image' resolution and avoid using focusable objects but none of these solutions worked for me.
This is my RecyclerView declaration
<android.support.v7.widget.RecyclerView
app:layout_constraintTop_toBottomOf="#id/btn_rech"
app:layout_constraintStart_toStartOf="parent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="50dp"
android:descendantFocusability="beforeDescendants"
android:id="#+id/recyler_view_voiture_occasion">
</android.support.v7.widget.RecyclerView>
This is the CardView item that I use to bind data
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="340dp"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:ignore="MissingConstraints"
app:cardCornerRadius="10sp"
android:elevation="15dp"
android:background="#color/colorGrey"
app:cardBackgroundColor="#color/colorLightGrey"
android:layout_margin="7dp"
xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="170dp"
android:background="#color/colorWhite"
android:scaleType="centerCrop"
android:id="#+id/annonce_image"
/>
<android.support.v7.widget.AppCompatTextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="2dp"
android:text="#string/general"
android:layout_below="#+id/annonce_image"
android:layout_alignStart="#id/annonce_image"
android:layout_marginStart="10dp"
android:textAppearance="#android:style/TextAppearance.Material.Widget.Toolbar.Title"
android:id="#+id/annonce_info"
/>
<android.support.v7.widget.AppCompatTextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="#android:style/TextAppearance.Material.Widget.Toolbar.Subtitle"
android:padding="2dp"
android:layout_marginStart="10dp"
android:id="#+id/annonce_price_info"
android:layout_below="#+id/annonce_info"
android:text="this is a sample text"
/>
<android.support.v7.widget.LinearLayoutCompat
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:backgroundTint="#ffffff"
android:outlineProvider="#color/colorPrimaryDark"
android:orientation="horizontal"
android:layout_marginTop="10dp"
android:weightSum="90"
android:background="#drawable/item_edit_versement"
android:layout_below="#id/annonce_price_info"
android:layout_marginHorizontal="10dp"
android:padding="5dp"
android:id="#+id/infos_holder"
>
<android.support.v7.widget.AppCompatTextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/annonce_km"
android:layout_weight="30"
android:textAlignment="center"
android:text="#string/prix"
android:textSize="14sp"
android:fontFamily="sans-serif-medium"
/>
<android.support.v7.widget.AppCompatTextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/annonce_annee"
android:textAlignment="center"
android:layout_weight="30"
android:text="#string/prix"
android:textSize="14sp"
android:fontFamily="sans-serif-medium"
/>
<android.support.v7.widget.AppCompatTextView
android:layout_width="wrap_content"
android:layout_weight="30"
android:id="#+id/annonce_fuel"
android:textAlignment="center"
android:layout_height="wrap_content"
android:text="#string/Fuel"
android:textSize="14sp"
android:fontFamily="sans-serif-medium"
/>
</android.support.v7.widget.LinearLayoutCompat>
<android.support.v7.widget.LinearLayoutCompat
android:layout_width="match_parent"
android:orientation="horizontal"
android:layout_marginTop="12dp"
android:weightSum="100"
android:gravity="center"
android:layout_below="#id/infos_holder"
android:layout_height="wrap_content">
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/item_edit_versement"
android:layout_marginHorizontal="10dp"
android:layout_weight="40"
android:textStyle="bold"
android:textColor="#color/colorPrimaryDark"
android:textSize="14sp"
android:text="Faire un offre"
/>
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/item_edit_versement"
android:backgroundTint="#424242"
android:drawableStart="#drawable/phone"
android:paddingStart="15dp"
android:text="Call owner"
android:textColor="#color/colorWhite"
android:textStyle="bold"
android:textSize="15sp"
android:layout_marginHorizontal="10dp"
android:layout_weight="35"
/>
</android.support.v7.widget.LinearLayoutCompat>
</RelativeLayout>
</android.support.v7.widget.CardView>
This is my part of Code where I get the data from DB and adapt it into the RV
fun prepareRecyclerView(v : View, id : String){
val layout = LinearLayoutManager(v.context)
layout.orientation = LinearLayoutManager.VERTICAL
val adapter = v.findViewById<RecyclerView>(R.id.recyler_view_voiture_occasion)
adapter.layoutManager = layout
val annonceAdapter = OccasionCarsAdapter(v.context,annonceList )
adapter.adapter = annonceAdapter
//initLineaire(v , R.id.recyler_view_voiture_occasion, LinearLayoutManager.VERTICAL ,annonceAdapter as RecyclerView.Adapter<RecyclerView.ViewHolder>)
}
fun getAnnonceList(id: String, maView: View, filters: VehiculeRechFilters?){
val service = prepareService()
val requestCall = service.GetOccasionAnnouncement(id,
filters!!.minPrix, filters.maxPrix, filters.minAnnee,
filters.minAnnee, filters.maxKm, filters.codeVersion)
requestCall.enqueue(object : Callback<List<VehiculeOccasion>> {
override fun onFailure(call: Call<List<VehiculeOccasion>>, t: Throwable) {
Log.e("Call response" , "Can't get the data" , t.cause)
}
override fun onResponse(call: Call<List<VehiculeOccasion>>, response: Response<List<VehiculeOccasion>>) {
if(response.isSuccessful){
Toast.makeText(this#CustomOccasionFragment.context,response.body().toString(), Toast.LENGTH_LONG).show()
for (e in response.body()!!){
annonceList.add(e)
}
prepareRecyclerView(maView!! ,idUser)
}
else {
Log.i("response assert" , "couldn't get the data correctly")
}
}
})
}

Kotlin : same fragment, children with same tag

In my fragment, I have two linear layout with the same tag "result". Inside theses linear layouts, I have another layout with the tag "toggle" and a button with the tag "toggleButton".
I want that : when I click on my button, it toggle the linear layout "toggle" of its linear layout parent "result"
But when I do this :
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
val root = rootLayoutResultSearch
root.findViewWithTag<Button>("toToggleButton")
val buttonToggle = view.findViewWithTag<Button>("toToggleButton")
buttonToggle.setOnClickListener{
Log.i(TAG, "click")
val toggle = view.findViewWithTag<LinearLayout>("toToggle")
if(toggle.visibility == View.GONE){
toggle.visibility = View.VISIBLE
}else{
toggle.visibility = View.GONE
}
}
}
it's working only for my first linear layout "result". When I click on my second button, it's not doing anything
Here the xml of the layouts "result" (I only post the first, the second is the exact same one)
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:tag="result"
android:contentDescription="result">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="35dp"
android:background="#drawable/whit_bg_and_shadow"
android:tag="visibleNotChangeable"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
style="#style/hoursSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:fontFamily="#font/rubik_medium_italic"
android:tag="heureDepart"
android:text="#string/fillHoursRecherche1"
android:textStyle="italic" />
<TextView
style="#style/citySearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
android:layout_weight=".9"
android:fontFamily="#font/rubik_medium"
android:tag="villeDepart"
android:text="#string/fillVilleRecherche1"
android:textSize="18sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
style="#style/hoursSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:fontFamily="#font/rubik_medium_italic"
android:tag="heureDepart"
android:text="#string/fillHoursRecherche2"
android:textFontWeight="500"
android:textStyle="italic" />
<TextView
style="#style/citySearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
android:layout_weight=".9"
android:fontFamily="#font/rubik_medium"
android:tag="villeDepart"
android:text="#string/fillVilleRecherche2"
android:textSize="18sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="end"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
android:fontFamily="#font/roboto"
android:tag="villeArrivee"
android:text="#string/jourCircuRecherche" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="#font/roboto"
android:tag="villeArrivee"
android:text="#string/fillJourCircuRecherche" />
</LinearLayout>
<View style="#style/HorizontalLine" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/bus" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginStart="15dp"
android:background="#drawable/dark_blue_rectangle"
android:text="3"
android:textColor="#color/colorWhite" />
</LinearLayout>
<View style="#style/HorizontalLine" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:src="#drawable/horaire" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginStart="15dp"
android:fontFamily="#font/roboto"
android:text="#string/fillTempsRecherche" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="35dp"
android:background="#drawable/gray_bg"
android:visibility="gone"
android:tag="toToggle"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
style="#style/hoursSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:fontFamily="#font/rubik_medium_italic"
android:tag="heureDepart"
android:text="#string/fillHoursRecherche1"
android:textStyle="italic" />
<TextView
style="#style/citySearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
android:layout_weight=".9"
android:fontFamily="#font/rubik_medium"
android:tag="villeDepart"
android:text="#string/fillVilleRecherche1"
android:textSize="18sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
style="#style/hoursSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight=".1"
android:fontFamily="#font/rubik_medium_italic"
android:tag="heureDepart"
android:text="#string/fillHoursRecherche2"
android:textFontWeight="500"
android:textStyle="italic" />
<TextView
style="#style/citySearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
android:layout_weight=".9"
android:fontFamily="#font/rubik_medium"
android:tag="villeDepart"
android:text="#string/fillVilleRecherche2"
android:textSize="18sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="end"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
android:fontFamily="#font/roboto"
android:tag="villeArrivee"
android:text="#string/jourCircuRecherche" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="#font/roboto"
android:tag="villeArrivee"
android:text="#string/fillJourCircuRecherche" />
</LinearLayout>
<View style="#style/HorizontalLine" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/bus" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginStart="15dp"
android:background="#drawable/dark_blue_rectangle"
android:text="3"
android:textColor="#color/colorWhite" />
</LinearLayout>
<View style="#style/HorizontalLine" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:src="#drawable/horaire" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginStart="15dp"
android:fontFamily="#font/roboto"
android:text="#string/fillTempsRecherche" />
</LinearLayout>
</LinearLayout>
<Button
android:id="#+id/ToggleSearchResult"
android:layout_width="40dp"
android:layout_height="40dp"
android:background="#drawable/arrow_down_blue_circle"
android:layout_gravity="center"
android:layout_marginTop="-20dp"
android:tag="toToggleButton"
/>
</LinearLayout>

Okay, I've thrown together a quick idea of what I think you want to accomplish. It excludes all the error and consistency checking one would normally want to do.
package com.example.toggler
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.view.View
import android.widget.LinearLayout
import kotlinx.android.synthetic.main.activity_main.*
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val list = arrayListOf<View>()
root_View.findViewsWithText(list, "toToggleButton", View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION)
list.forEach { button ->
button.setOnClickListener { v: View ->
val viewParent = v.parent
if (viewParent is LinearLayout) {
val taggedView = viewParent.findViewWithTag<View>("toggle")
taggedView.visibility = when {
taggedView.visibility == View.GONE -> View.VISIBLE
else -> View.GONE
}
}
}
}
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/root_View"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:contentDescription="toToggleButton"
android:tag="toToggleButton"
android:text="toggle"
tools:ignore="HardcodedText" />
<View
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#F44336"
android:tag="toggle" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:contentDescription="toToggleButton"
android:tag="toToggleButton"
android:text="toggle"
tools:ignore="HardcodedText" />
<View
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#9C27B0"
android:tag="toggle" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:contentDescription="toToggleButton"
android:tag="toToggleButton"
android:text="toggle"
tools:ignore="HardcodedText" />
<View
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#FFEB3B"
android:tag="toggle" />
</LinearLayout>
</LinearLayout>
[EDIT]
Or, if you prefer to use tags:
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
root_View.findViewsWithTag("toToggleButton").forEach { button ->
button.setOnClickListener { v: View ->
val viewParent = v.parent
if (viewParent is LinearLayout) {
val taggedView = viewParent.findViewWithTag<View>("toggle")
taggedView.visibility = when {
taggedView.visibility == View.GONE -> View.VISIBLE
else -> View.GONE
}
}
}
}
}
}
private fun ViewGroup.findViewsWithTag(tag: String): Sequence<View> {
return sequence {
for (index in 0 until childCount) {
val child = getChildAt(index)
when (child) {
is ViewGroup -> yieldAll(child.findViewsWithTag(tag))
is View -> if (child.tag == tag) yield(child)
}
}
}
}

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