GroupAdapter | specialized RecyclerView.Adapter that presents data | RecyclerView library

 by   KyoSherlock Java Version: Current License: No License

kandi X-RAY | GroupAdapter Summary

kandi X-RAY | GroupAdapter Summary

GroupAdapter is a Java library typically used in User Interface, RecyclerView applications. GroupAdapter has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub.

A specialized RecyclerView.Adapter that presents data from a sequence of RecyclerView.Adapter. The sequence is static but each adapter can be presented in zero or more item views. The child adapter can use ViewType safely. In addition, we can addHeaderView or addFooterView like ListView.

            kandi-support Support

              GroupAdapter has a low active ecosystem.
              It has 13 star(s) with 5 fork(s). There are 3 watchers for this library.
              It had no major release in the last 6 months.
              There are 2 open issues and 0 have been closed. On average issues are closed in 1390 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of GroupAdapter is current.

            kandi-Quality Quality

              GroupAdapter has no bugs reported.

            kandi-Security Security

              GroupAdapter has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              GroupAdapter does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              GroupAdapter releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed GroupAdapter and discovered the below as its top functions. This is intended to give you an instant insight into GroupAdapter implemented functionality, and help decide if they suit your requirements.
            • Returns the view type for the given position
            • Resolves the adapter index for the given position
            • Returns the total number of items in the adapter
            • Get the current view type
            • Creates the component
            • Creates an intent to launch the group adapter
            • Creates an intent to execute the header sample
            • Returns an item id for the given position
            • Generate an item id
            • Initializes the RecyclerView
            • On createViewHolder from viewType
            • Returns the count of items in the map
            • Helper method for setViewHolder
            • This method is called when the item is created
            • Adds a new item at the specified position
            • Creates and returns the ViewHolder which is used to show the view
            • Called when a ViewHolder has been resolved
            • On bindViewHolder
            • Is called onBindViewHolder onBindViewHolder
            • Creates and returns the ViewHolder which is used to show the views
            • Create the initial view
            • Returns the view type of the specified item
            Get all kandi verified functions for this library.

            GroupAdapter Key Features

            No Key Features are available at this moment for GroupAdapter.

            GroupAdapter Examples and Code Snippets

            No Code Snippets are available at this moment for GroupAdapter.

            Community Discussions


            How to Center RecyclerView with GridLayout (spanCount = 2)? (SOLVED)
            Asked 2020-Nov-11 at 12:18

            So I'm experimenting with RecyclerView.

            This is my activity_main...



            Answered 2020-Jun-30 at 04:28

            You haven't shared the layout_card_view.xml but i think this will work

            Add android:layout_gravity="center" in your layout_card_view.xml

            Hope it helps



            Android Kotlin: Groupie RecyclerView All Items Added To The Same Expandable Item
            Asked 2020-Sep-29 at 10:48

            First, my question is same with this. But my code is different, and I try to follow this but not solve my problem.

            So my question is, I would like to have this:

            • Header 1
              • Child header 1
              • Child header 1
              • Child header 1
            • Header 2
              • Child header 2
              • Child header 2

            I have this instead:

            • Header 1
              • Child header 1
              • Child header 1
              • Child header 1
              • Child header 2
              • Child header 2
            • header 2
              • Child header 1
              • Child header 1
              • Child header 1
              • Child header 2
              • Child header 2

            This is my code for ParentItemAdapter



            Answered 2020-Sep-29 at 10:48

            I solved my problem with this code.



            ViewModel still displaying old data after dialog dismissed and parent fragment back to view
            Asked 2020-Sep-13 at 06:13

            I'm still trying to wrap my head around working with viewmodels and a bit confused now that I also have a dialog and recyclerview items but will try to be as clear as I can here if I can get any help please.

            I have a dialog with items that when one of them is selected and closed should return data to my calling fragment so the selected item is displayed under that view.

            However, once the item is selected and the dialog dismissed, I don't see the new selected item as the one showing on the UI but still the old item instead. (When the fragment is first started it displays the item that is set as selected on my list. The selected value is hardcoded at first but updated when the item is clicked and I can see the update has taken place when I debug the viewmodel observer inside the onDismiss method for the dialog).

            I'm a couple of hours on this and have tried a few different things such as calling the viewmodel inside onResume or onDismiss and changing the viewmodel to be initiated by by activityViewModels() as per this post but none of these have worked so far and I think I'm stuck at the moment. Below my most recent version of the code.



            Answered 2020-Sep-13 at 06:13

            Your main view model should be like this



            On selecting an item deselect all others for Groupie RecyclerView
            Asked 2020-Aug-03 at 02:56

            I see this question asked a few times but maybe because I'm using the Groupie library for adding items to my adapter, I'm not being able to unselect the other items when one of the them is selected (similar to radio button functionality). I'm trying to notify the adapter of changes and somewhat get the position of the item selected but I think I may still be missing something if someone could point this out for me please.



            Answered 2020-Aug-03 at 02:56

            First option: Create your adapter and create a local variable in the adapter and check the position selected it is the variable.

            Second option: Create the variable in the Activity called selected_position. When the function onClickItem called update this variable and notify adapter change. in your item check the variable in the activity, example:



            How to notify and update list when item has been deleted using Groupie RecyclerView library and Kotlin
            Asked 2020-Aug-01 at 17:19

            I have a RecyclerView implemented with the Groupie library and I can delete an item from the list fine, however need to update the view to see the change. I'd like to have something like notifyDataSetChanged() instead, so the list updates immediately. I'm a bit confused at this stage though, tried a few different ways to get an interface from the class that hosts my view holder to be triggered from the fragment that holds the adapter but I think I'm stuck now if I could get some help please.



            Answered 2020-Jul-06 at 05:29

            I think you are missing this concept from the groupie Readme:

            Modifying the contents of the GroupAdapter in any way automatically sends change notifications. Adding an item calls notifyItemAdded(); adding a group calls notifyItemRangeAdded(), etc.

            So to remove an item, call section.remove(item). However, in your onClickItem function you currently only pass the position. Pass the item like clickListener?.onClickItem(this@RecyclerProductItem) instead. Even more ideally and safely you should remove by, e.g. clickListener?.onClickItem( then in onClickItem() you just search for the item with that product id and remove it. Let me know if I'm not clear.



            java.lang.IllegalStateException: recyclerview_latestmessage must not be null
            Asked 2020-Jun-03 at 18:50

            hope you're doing well. I'm developing an android with fragment use and I have some problems. I implement a recycler view in a fragment layout an I initialize it. But when I run the code, the logcat show this error: java.lang.IllegalStateException: recyclerview_latestmessage must not be null The id of the recycler view is : recyclerview_latestmessage I use a bundle call groupie to replace the RecyclerView adapter. You can find more information here:

            Here is my code.




            Answered 2020-Jun-03 at 17:51

            Try to use findViewById(..)!!, because the function findViewById return a @Nullable type.



            Android: Why does it create and activity, then destory it, then create again, at one time
            Asked 2020-May-21 at 06:10

            I have an activity that I want to have created when a button is clicked. For some reason android creates this activity, then destory it, and then create it again at once. I used log messages to debug the creating and destroying(onCreate message and onDestroy message):

            "2020-05-21 08:48:19.358 28554-28554/com.example.amigo D/TAG: Standings has been created

            2020-05-21 08:48:19.400 28554-28554/com.example.amigo D/TAG: Standings has been destroyed.

            2020-05-21 08:48:19.639 28554-28554/com.example.amigo D/TAG: Standings has been created "

            Why does it create it again instead of not destroying it in the first place?

            Code of starting the activity:



            Answered 2020-May-21 at 06:10

            Reason Your Activity is recreated because you setRequestedOrientation. You should fix it in your AndroidManifest by



            Kotlin, Type Mistmatch Required Boolean Found Class *Issue Fixed itself*
            Asked 2020-Apr-26 at 10:52

            I have been programming a small Chat Application and have come across the following error

            Type Mismatch Required Boolean Found Class



            Answered 2020-Apr-26 at 10:52

            I had a similar problem this morning. In Tools, AVD Manager, on the virtual device that you are using, in Actions column, you have the option to Wipe Data. Clearing the data fixed my issue. Regards Martin



            How to implement HeaderItems in Recyclerview using Groupie in Android
            Asked 2020-Apr-07 at 09:43

            I am trying to use Groupie to create a recyclerview with HeaderItems. I have Group of Data like this



            Answered 2020-Apr-07 at 09:43

            First you need to create item classes for your groups (possibly header and entry).

            Follow instructions in this section.

            E.g. those could be:



            How to use bind function of groupie library in java?
            Asked 2020-Mar-11 at 11:49

            I am trying to show a list of user in recyclerView and trying to connect the textview layout in bind method in groupie library and i don't know how to link the id of layout to recyclerview viewHolder? and also how to use picasso library in viewholder?



            Answered 2020-Mar-11 at 11:49

            Groupie abstracts away the complexity of multiple item view types. Each Item declares a view layout id, and gets a callback to bind the inflated layout. That's all you need; you can add your new item directly to a GroupAdapter and call it a day.

            Item with Kotlin The Item class gives you simple callbacks to bind your model object to the generated fields. Because of Kotlin Android extensions, there's no need to write a view holder.**


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install GroupAdapter

            You can download it from GitHub.
            You can use GroupAdapter like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the GroupAdapter component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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