Nested recyclerview java

Nested recyclerview java. Since we are designing a list, the first step will obviously be to implement the UI data model and layout for the list items. Rather in your first adapter's bindViewHolder call again recyclerview adapter like:-InnerRecyclerviewAdapter adapter=new InnerRecyclerviewAdapter(context,urlistArray); holder. private RecyclerView rvUserEvents; private HomeUserEventsRVAdapter rvAdapter; public UserEventsViewHolder(View v) {. Share. Each CardView then has its own RecyclerView in it. Go to the single_item. sid. com/foxandroid/NestedRecyclerViewFollow me on Jan 24, 2021 ยท I'll be using Kotlin for this project as it's the new standard. val clickOnImage = actionOnItem(withId(R. In our example project, weโ€™ll add a RecyclerView to display a list of CardViews that contains Android Version Names and Numbers along with a sample logo. So to bring back smooth scrolling there's trick: ViewCompat. dependencies {. OnItemClickListener() {. Mar 22, 2019 ยท NestedScrollView is just like ScrollView, but in NestedScrollView we can put other scrolling views as child of it, e. e recycler view inside Sep 21, 2022 ยท After much time investigating, it appears that NestedScrollView doesn't actually support horizontal scrolling. This is my code for my app : My Main Activity : setContentView(R. Create a file named CharacterInfo. โ€“ Tim. Data class is a new concept in kotlin to overcome getter Aug 3, 2022 ยท card_view:cardBackgroundColor : Used to set the background color of the view. Recycler detects click and long click. So you'll need to recursively go down each message and add the children to the Adapter's list. flutter nestedscrollview pinned-sliver-headers tabview-sync-issue. gradle file in order to get the FirebaseUI and Firebase Realtime Database support in the app. Inside this recyclerview is another recyclerview of sets (no. You are setting adapter each time you are updating your data from the server. I have already set photosRecycler. getChildrenByParentId (id: Long). I want to use 2 RecyclerViews , One first Lists the Cinema Names , and The Second One Comes after clicking on the Movies item Of the first RecyclerView. check(matches(atPosition(0, hasDescendant(withText("First Element"))))); Share. e. Instead, you should have a List<List<QuestionsToTeacher>>. Take any example of recyclerview and do exercise. Jun 5, 2020 ยท I have a nested recyclerview and I want to dynamically add subitems into individual items as well as being able to add items. Set the Adapter. setAdapter(adapter); holder. I have an Activity that has a RecyclerView and a RecyclerView. Oct 2, 2018 ยท A recyclerview adapter for those items: The fields "name" and "image" that you are trying to parse are nested in a JSON object "show". mDescription = mDescription; return mCat; this. Oct 14, 2017 ยท 1 Answer. It uses sticky header and something like Cardview. layout. xml, and a separate file with an item view. GET, myUrl, new Response. setNestedScrollingEnabled(false); and remove one line code from recycler view xml android:nestedScrollingEnabled="false" Nov 22, 2019 ยท The recyclerview only gets a list of objects that implement the interface. NestedScrollView as parent. Example: onView(withId(R. Updated on Dec 27, 2023. XML. Here is the code. a RecyclerView that encompasses an inner Recycler view). This will only disable nested scrolling, not all scrolling. Follow. g. 5f works perfectly. Nov 22, 2019 ยท Now you have a few choices: 1. Jul 21, 2018 ยท 'TransactionsAdapter(android. Download Source Code***** Aug 15, 2022 ยท The code for that has been given in both Java and Kotlin Programming Language for Android. Nesting reduces RecyclerView performance. do without ScrollController in NestedScrollView's body. Listener() May 21, 2020 ยท 10. What I'm doing is creating a method in Get the latest; Stay in touch with the latest releases throughout the year, join our preview programs, and give us your feedback. however, all the items are loa Oct 5, 2017 ยท public boolean canScrollVertically() {. โ€“ Ankita Singh. Sulav Parajuli. Implementing a RecyclerView can get confusing, so to makes this easier I have broken things down into 5 easy steps: 1) Add the RecyclerView to an XML file. Adapter (let's call it adapter1). toolbar); reminderView = (RecyclerView) findViewById(R. ViewHolder> { private static final int TYPE_HEADER = 0; private static final int TYPE_ITEM = 1; String[] data; public HeaderAdapter(String[] data) { this. android. So i decided add a recyclerView called CheckBoxRecyclerView inside my main recyclerView. com/CodingSTUFF070/Nested-R Mar 19, 2019 ยท Calling nested recyclerview adapter to get data. private TextView txtName; UPDATE: this answer is out dated now as there are widgets like NestedScrollView and RecyclerView that support nested scrolling. Pass arguments to the RecyclerView. Source Code - https://github. Aug 24, 2018 ยท This will aid in case of you are having a nested RecyclerView which is not your case. Dec 23, 2018 ยท the problem is: when to invoke data from API to a Vertical RecyclerView it loads all data without any consideration to Pagination. setNestedScrollingEnabled (false); and as soon as i remove java. Now, to have some sort of hierarchy you need to store the depth in the model itself. setNestedScrollingEnabled(false); java. The nested one in the CardView is not getting focus, so I can't scroll it. Jul 1, 2021 ยท First I am going to paste the code and then talk about the part pertaining to creating our method. 0 Vertical RecyclerView Sep 8, 2017 ยท Each of the views of the inner RecyclerView is inflated again. Adapter<OuterRecyclerAdapter. Context, in. Use callback function, when inner Recyclerview value changed, callback to out side Recyclerview to refresh something also. Just to enhance riwnodennyk's answer, if your ViewHolder is a ViewGroup instead of a direct View object like TextView, then you can add hasDescendant matcher to match the TextView object in the ViewGroup. kt and add the following code: data class CharacterInfo(. ithChildAdapter. ) recyclerView. Nested RecylerView in Android Studio | Nested RecylerView | Android Studio TutorialSource Code: https://github. The problem is that only the "main" RecyclerView is scrolling. Add the below and check the performance. Aug 13, 2018 at 10:11. please help me. Create a recyclerview in the main. I'm trying to make workouts log app. Mar 11, 2017 ยท EDIT 2: For point 1: You need to flatten out the children so they are in one long continuous list in the adapter. Pull requests. Dependencies used: Sep 8, 2017 ยท This is because each of the the nested RecyclerViews has a view pool of its own. So I tried to have a child view in a nestedscrollview. onCreate(savedInstanceState); setContentView(R. Step 3: Add the following dependency in your app/build. THis is late but you could try adding an OnScrollListener it always works for me even when RecyclerView is nested: super. 0. Here is what I am trying to make: This is the closest solution I could find on stack overflow but they use headers instead of left-aligned titles that wrap all other nested views. util. inside of this Adapter, I have another RecyclerView and another Adapter (adapter2). I need to pass the focus on the menu on the left. Mar 23, 2018 ยท The height of the screen is not enough because there are many items containing two recyclerviews on one screen. Add a comment. Introduction. 4) Create the Adapter. Jan 17, 2021 ยท 1. I have multiple checkboxes (switches in my case), in a nested recycler view. extended nested scroll view to fix following issues. But if we put RecyclerView inside NestedScrollView, RecyclerView's smooth scrolling is disturbed. My onCreateView function is this. Flat View improves performance. Add the following lines will enable data binding and you can rebuild the project. โ€“ leegor. ViewHolder onCreateViewHolder(ViewGroup Jun 9, 2021 ยท RecyclerView is one of the foremost utilized components in android. Oct 7, 2020 ยท I actually circumvented this issue by calling the DialogFragment from my OuterRecycler: public class OuterRecyclerAdapter extends RecyclerView. image_view), click()) // Next you want to do the above click action on the specific view in the child recycler. But for Cardview part, I tried to make nested Recyclerview but performance was so bad, Because using two vertical Recyclerview is not good at all Jun 20, 2020 ยท secondHeaderAdapter, secondAdapter, thirdHeaderAdapter, thirdAdapter. public class CustomAdapter extends RecyclerView. List)' in 'in. I designed adding new workout as shown on pic below: In AddWorkoutActivity there is a recyclerview of exercises with ExercisesListAdapter. May 6, 2015 ยท You can't take recyclerview inside recyclerview tag. super(v); rvUserEvents = v. What I want to do is that there might be some info passed to onActivityResult and needs to be passed to the inner adapter2. A list RecyclerViews are items of a parent RecyclerView. Sep 18, 2021 ยท It works in this way. Here setHasFixedSize (false) determines that changes in adapter content can change the size of the RecyclerView. Issues. java; android; android-studio Feb 6, 2018 ยท It's hard to point at one specific place and say "this is the issue," since there's a lot of code. Transactions)' A visual representation Also, I tried to change the recyclerviewadapter to work without List<>, but I couldn't make it work and I cannot change the API call because when I Jun 2, 2019 ยท I would be explaining nested recyclerview in android with help of Kotlin/Java. Nov 5, 2016 ยท Nested RecyclerView not getting focus. You need to parse this Apr 2, 2016 ยท MainActivity. The problem appears when one of the nested recyclerview is in a different position, then the focus first goes down or up. Jun 29, 2014 ยท Here is a better and less tightly coupled way to implement an OnClickListener for a RecyclerView. and without any scrolling or screen touch. 2 of a support library version 23. xml. xml file. Step 2: Working with the activity_main. 2) Create individual RecyclerView item XML file. id 'kotlin-android-extensions'. Improve this answer. Be sure to put some fixed value or wrap_content on the adapter's layout height. โ€“ Weidian Huang. pull to refresh is not work. Nov 30, 2021 ยท In this article, will learn how to create a dynamic RecyclerView. // update at position j with new item. 4. Below is the code for the ItemAdapter class. You have 3 views in your item view - white background with margins (linearlayout?), right textView, and left textview. setNestedScrollingEnabled(recyclerView, false); Dec 13, 2021 ยท I'm trying to integrate the nested array response from the api into nested recyclerview in android I integrate the response but i couldn't get values from the response. The nested recycler view is dynamically added for each item when the button is clicked. TransactionsAdapter' cannot be applied to '(android. But it should be like this. NestedScroll View contain 2 Recycler in the following order. pinned sliver header issue 2. update( j, newCartItem); } Please note that I wrote it without the project. The parent RecyclerView with vertical scrolling containing a list of RecyclerViews that are also with vertical scrolling and each of them can be expanded or collapsed. For example - below country -> state -> city multilevel list. adapter = mergeAdapter. For example, Iโ€™m looking to obtain something in a similar format to this: [Item 0, Sub Item UPDATE : Change position to holder. recycler_view)) . ViewHolder> {. Dec 14, 2018 at 7:51. java Oct 25, 2015 ยท So put RecyclerView inside NestedScrollView directly will unfortunately display nothing. That is, a list of lists. I'm trying to retrive data from Firestore in a fragment. I searched and found somethings for implementing sticky header with itemdecoration and it's okay. Code Issues Pull requests Custom RecyclerView with additional functionality. activity_main); recyclerView = (RecyclerView) findViewById(R. Adapter<CustomAdapter. Feb 16, 2023 ยท In the following, we are going to accomplish a basic Android app that uses the powerful RecyclerView. Recycling the recyclers. I am predicting that the change in the nested list is going to look weird when the view is being recycled rather than just updated, because it will animate the change from what was in the view previously, which could be from a different item. By Android Support Library 23. Mar 27, 2023 ยท Here we are going to Apply OnClickListener to our RecylerView Adapter by Implementing OnClickListener Interface. Method. Apr 1, 2021 ยท An alternative equivalent of nested RecyclerViews is nested LazyColumns, where the heights of the inner LazyColumns are specified or constant, and the inner LazyColumns are placed inside item {} blocks. I have a recyclerview and within it I am trying to add a nested recyclerview that contains a list. The first issue is caused by the fact that the individual views in our AnimalSectionAdapter (meaning the whole rows) are being recycled. When swipe is made to less than half of maximum size panel will collapse. In Espresso terms, that translates to something like: // Starting from the bottom up, you want to click on the image. We can fix this by setting a single view pool for all the inner RecyclerViews. id 'kotlin-android'. InsideRecyclerHolder> { private final Context mContext; private final String mText; private final ArrayList<MainViewArrayListMasterList> mDataArrayList; private FragmentManager mFragmentManager; OuterRecyclerAdapter(Context Aug 15, 2020 ยท ChildAdapter ithChildAdapter = (ChildAdapter) ithChildsRecyclerView. Jan 18, 2018 ยท You can customize this divider color. On child recycler view adapter add a code that listens the onClick event on the specific item and see its position and finally apply change in the item at that position. But it boils down to the fact that there's only a single List<QuestionsToTeacher> questionsToTeacherList inside AdapterAskTeacherList. Sep 3, 2020 ยท Avoid a nested view. 2. We should use this method if the height of all the items is equal. When there is too much data in recycler view, the scroll gets lagged. Jul 6, 2015 ยท overwrite calculateSpeedPerPixel work for me, the default will make recycler view like jumping when calling smoothScrollToPosition (position), but when overwrite this method and return 0. data = data; } @Override public RecyclerView. getAdapter(); // 4. Both the parent and child recycler view's are dynamic. 1. This is the event object that I want to inflate with RecyclerView: this. java java. rv_user_events); rvUserEvents. Aug 8, 2016 ยท I am developing a Cinema App, but I want to use 2 RecyclerViews, one has successfully loaded, it contains the list of cinemas, then I want when someone taps on any of the Cinemas it loads another list of RecyclerView containing Movies. In This Video, I am gonna show you how to create nested RecyclerView within Expandable RecyclerView. getAdapterPosition() when you need position in anonymous class. Oct 4, 2018 ยท 3. @Override public View onCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater. I am implementing a Nested Recycler View. Feb 22, 2019 ยท set RecyclerView height wrap_content in xml and maxHeight to fixwidth in dp. xml file to display those strings in the activity_main. fragment_order__subscription_0, container, false I don't know what code should I post, but here's my Parent RV's ViewHolder example with nested RV. Now define two static values at the Recycler view Adapter class level, for example: private static int TYPE_CALL = 1; private static int TYPE_EMAIL = 2; Now create the view holder with multiple views like this: class CallViewHolder extends RecyclerView. After scroll the nested recyclerview to position 0, focus moved to the left menu. Have the outerAdapter act as an intermediate between the clicks happening in the innerAdapter and bubble them up via this click handler you just supplied. But when I use RecyclerView inside LinearLayout or something, it scroll in various speed depending on gesture. setHasFixedSize(true); recyclerView. Following are the important tasks to be implemented in the MainActivity. If possible, we should avoid a nested view and try to create a flat view wherever possible. which work successfully with the horizontal Recycler view. How can I deal with 2 RecyclerViews? Am new in Android. Dec 27, 2021 ยท In this video we are going to learn how to create nested recycler view in android studioIf you have any questions or queries comment down belowSubscribe the May 29, 2020 ยท In this tutorial, I will be showing you how to create an AndroidX Nested #Recyclerview like play store in #Android Studio from scratch without using any libr Feb 15, 2020 ยท 2. When nested recyclerviews are scrolled at position 0 the focus goes correctly. The problem I encounter is that I cannot find a way to correctly notify the child (inner) recycler view when a CRUD, in particular a delete, occurs. id 'com. for getting the data of the onclick you can make interface or can use the library called eventbus to know which item is clicked. android. asked Apr 8, 2020 at 18:05. RecyclerView. xml file and refer to the following code. This results in the Jan 9, 2021 ยท 1- In XML layout, we need to put the RecyclerView inside NestedScrollView, with `android:layout_height=โ€wrap_contentโ€`. I have a RecyclerView that contains a bunch of CardViews. Adapter that enables us to display a list of items with a different ViewHolder for different backend-controlled viewType s in Android apps. id. 2- As RecyclerView needs to set LayoutManager and setAdapter. Scroll view supports vertical scrolling only. addOnItemTouchListener(. It looks like the following : I want to be able to retrieve all switch states on this screen when the user goes back and be able to identify which oneโ€™s are set to true. private List<String> data; private OnNoteListener onNoteListener; public CustomAdapter(List<String> data,OnNoteListener onNoteListener){. create a child recyclerview for a single parent recyclerview item that displays the children. As long as you keep them in order, they will appear in order on the RecyclerView. recyclerView. java. POJO. xml and add two random text strings inside the strings. Whenever i tried to scroll up or down it doesn't scroll at all. Dec 14, 2022 ยท recyclerView. xml File Go to the app > res > values > strings. The RecyclerView will consume height wrap_content till fixWidth which you set, after reaching to maxHeight, the RecyclerView will scrollable. Below is the code for the single_item. ViewHolder {. Most of the developers call May 16, 2022 ยท Steps to implement a RecyclerView. As below you can see, I changed RecyclerView background color to HEX #3E3963(blue) and divider color to HEX #FAA701(semi_yellow) and text color for item_row elements to HEX #FFFFFF(white) Create custom divider item decoration class for divider in recyclerview LineDividerItemDecoration. public class MainActivity extends AppCompatActivity { private List<Model> mModelList; private RecyclerView mRecyclerView; private RecyclerView . 2. Is there any way to solve this issue other than taking the recycler view out of nested Jun 26, 2020 ยท Enables to swipe left or right and shows a new panel. setLayoutManager(new LinearLayoutManager(itemView Java; Omega-R / OmegaRecyclerView Star 142. This is because each of the the nested RecyclerViews has a view pool of its own. You should only create the adapter once. Feb 22, 2021 ยท The issues. Firestore data in Nested Recyclerview. ` private void loadJson() { //creating a string request to send request to the url StringRequest stringRequest = new StringRequest(Request. Here nested stands for a list which contains another list. content. reminder_recycler_view); RlayoutManager = new The following is an example for creating nested RecyclerViews in Android. inflate (R. Then I thought every item itself might be a box, and so be containing other items inside: this brought me to think of a sort of "nested" system of RecyclerViews. Which you should not. Context, java. 5) Instantiate the RecyclerView. it knows to scroll a vertical recycler inside a horizontal recycler - this is easy to distinguish, because it is not the same scrolling direction. Dec 2, 2019 ยท 1. May 24, 2022 ยท I'm trying to make Recyclerview like Shareit app. The CardView onclick is programmed to remove that Card from the list. May 26, 2020 at 9:59. activity_startup); Toolbar toolbar = (Toolbar) findViewById(R. findViewById(R. setHasFixedSize(true); LinearLayoutManager layoutManager = new LinearLayoutManager(context, LinearLayoutManager Jun 11, 2020 ยท I have a nested RecyclerView (i. setRecycledViewPool(RecycledViewPool) allows you to set a custom view pool to your recyclerView. 11 3 3 bronze badges. Set the content view as the XML activity wherein the main RecyclerView has been implemented, here activity_main. As a solution to this problem you can create a new LayoutManager that extends the existing one and overrides onMeasure method to measure for wrap content. I believe I need to binding adapter, I know how to add binding adapter for image but i am getting confused how to add binding adapter for activity with respect to the recycler view so that I could directly add recycler view adapter in the xml. mEventCat = mEventCat; return mEventCat; return mDescription; this. I use a Nested JSON to retrieve the information , and I have Successfully retrieved the list of Cinemas, but I receive no matching Movies in the Second RecyclerView. Jun 16, 2017 ยท The problem is when you inflate recycler view inside a nested scroll view, it start inflating a view for every item, so if you have 500 items in your recycler adapter then it will create 500 item layout which causes the sudden unresponsiveness, what I did is removed the nested scroll layout, haven't found any solution that can make nested scroll view work with recycler view in case of large Mar 24, 2021 ยท Step 4: Create a new layout file and name it as single_item. Sliding on right selects item, it is possible to select the maximum number of selected items. But when you click the button to add an item, the item update is only possible through the nested recyclerview's setAdapter (), not the notifyDataSetChanged () Nov 27, 2021 ยท In this tutorial, we will learn how to fetch nested data from firebase real-time DB and how we can show it into nested recycler view i. you should never put a scrollable view inside another scrollable view ! i suggest you make your main layout recycler view and put your views as items of recycler view. now you should be able to do updates. So the data hierarchy that the recyclerview Mar 31, 2023 ยท Step 7: Complete the MainActivity. If it's match_parent it won't work as expected because each row will fill all the RecyclerView. I have Recyclerview which is under Coordinatorlayout > NestedScrollview > ViewPager and ViewPager has 3 fragment, one has image gallery which is working with the help of Recyclerview. The code Jul 6, 2018 ยท The question is broad. Set the layout for the RecyclerView. May 29, 2015 ยท 55. pass the same click handler all the way in and let the innerAdapter directly talk to this. In particular, if your RecyclerView is in a ScrollView but does not fill the screen, the ScrollView will not scroll (content fits in screen), and you will get the scroll UI in your RecyclerView (end of list effect when trying to scroll for example) even though it will not scroll If the View that was clicked is a View from the Parent RecyclerView adapter, then the ClickReporter class has enough information about what view was clicked, but if the View that was clicked is a View in the Child RecyclerView, then the ClickReporter class doesn't have enough information as it still needs to know which item index from the Dec 21, 2020 ยท 2. Before going too deep into this system I had to clarify each item should have been a Class, each of which should have had a RecyclerView assigned. java file. Snippet of usage: RecyclerView recyclerView = findViewById(R. However, there is a way to put the recyclerview inside the NestedScrollView indirectly - just use a frameLayout as the third party to hold your recyclerview. Expandable RecyclerView, Nested Hierarchy. Feb 26, 2020 ยท I guess you need to header and footer of RecyclerView. Below is the link to the sample of codes: Aug 19, 2022 ยท This video elaborates the complete idea about Nested and Expandable recyclerview with complete diagram explanation. 3) Create the ViewHolder. recycler); recyclerView. Before starting we need to do some changes in our build. 0 Nested RecyclerView with same Objects. Try this one: public class HeaderAdapter extends RecyclerView. Use setHasFixedSize. By checking the type of the current element it knows whether it is a read-only header or a normal element with special on-click functions. My 2 cents is that the easier solution is to make a different design that does not require nested horizontal scrolling. Code. I have implemented this function. That's the data I'm working from. This is the framelayout which holds the nested recyclerview in your activity class: May 23, 2016 ยท Solved: Using custom nested scroll view of @vrund purohit (code below), and disabled nestedscroll both vertical and horizontal recyclerview: verticalRecyclerView. return false; }; Probably the problem is related with the adapter's layout. setNestedScrollingEnabled(false); add each horizontal recyclerviews: horizontalRecyclerView. id 'kotlin-kapt'. answered Dec 21, 2020 at 1:42. Comments are added inside the code for a better understanding of the Code. new RecyclerItemClickListener(context, recyclerView ,new RecyclerItemClickListener. android:animateLayoutChanges="false". Nested Recyclerview Issues. Navigate to app > java >your package name > Create a Kotlin Object named as ItemAdapter. and make position non final in onBindViewHolder() method; public void onBindViewHolder(@NonNull final myViewHolder holder, int position) Jun 13, 2021 ยท This question already has an answer here : Bad performance when use RecyclerView inside NestedScrollView (1 answer) Closed 2 years ago. Nested Expandable RecyclerView is a simple and light weight demonstration to achieve nested (multi-level) and expandable/collapsable recyclerview in android. May 25, 2021 ยท And that action it to click an image. Nov 24, 2021 ยท That defeats the purpose of using RecyclerView at all. Star 570. Step 2: Connect your Firebase project with your app. application'. So there might be some minor errors. The scroll listen to gesture and if I slide up only a bit, then it scroll a little bit while if I slide up really fast, then it scroll really fast. Inside the Header adapter, the getItemCount is always one, and we can use View Type to control the state of the header layout. recyclerview); movies = new ArrayList<>(); getMoviesFromDB(0); Jun 1, 2018 ยท How to fill the RecyclerView with nested object from firebase. I am able to add items, but when I add subitems, the program just stops Nov 23, 2021 ยท Step 1: Open Android Studio and create a new project named โ€œ RecyclerView โ€ with an empty activity. This list will be heterogeneous, meaning it will contain a UI ranging from grid and nested horizontal lists, among other things. I have a recycler view inside nested scroll view. inner scrollables in tabview sync issue 3. , weight, reps) with SetsListAdapter. Jan 8, 2018 ยท DiffUtil is a utility class that can calculate the difference between two lists and output a list of update operations that converts the first list into the second one. Too, the plan of recycler sees is getting complex day by day such as Recycler See with numerous see sorts, settled recycler View Test it by assigning a fixed height to your recyclerChild and the view would appear. The ViewHolder: The ViewHolder is a java class that stores the reference to the card layout views that have to be dynamically modified during the execution of the program by a list of data obtained either by online databases or added in some other way. The three header adapters can be different instances of the same Header adapter class. Clicking on this panel can be handled. It is the single item layout that we will use in RecyclerView. Jul 27, 2016 ยท I want to use same listview or gridview or nested recyclerview but I do not know how to implement this. Room returns a LiveData> from function repository. Jul 3, 2019 ยท But this parent recyclerview also needs to: fetch children based on a single parent. Adapter<RecyclerView. gradle file for the app module. I guess you are calling the update action code when you are scrolling the items. But I want to add the layout tag in activty_xml where I define the recycler view . mCat = mCat; return mDate; Aug 29, 2022 ยท The Card Layout: The card layout is an XML layout which will be treated as an item for the list created by the RecyclerView. gw no jh hm zd gd iy qk uo sl