android-recyclerview

问题 This is my adapter class:- public class adapter_cgpa extends RecyclerView.Adapter<adapter_cgpa.Viewholder> { ArrayList<POJO> cgpaArrayList; public adapter_cgpa(ArrayList<POJO> cgpaArrayList) { this.cgpaArrayList = cgpaArrayList; } @NonNull @Override public adapter_cgpa.Viewholder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { View listitem = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycler_cgpa, parent, false); return new Viewholder(listitem); } @Override

问题 When I am writing the title of my question, then this site recommends me some answer but I can't find my answer that's why I am writing a new one. I am trying simple RecyclerView and it's run successfully but when I am fetching data from internet using volley library then I face this error here is my code BusinessActivity.java public class BusinessActivity extends AppCompatActivity { private final String URL = "https://api.myjson.com/bins/a44ec"; private JsonArrayRequest request; private

问题 I have a Spannable set up on a SearchView for RecyclerView CardViews. If user-entered text is found on the CardView, the text is highlighted in red. When the SearchView line is cleared I would like the CardView text to return to the default Black color. Currently, the text is cleared and the color erroneously remains red. I tried to use "removeSpan" on the TextView but no luck. The TextView is "cardBlankText2". What am I missing here? RecyclerView Adapter file private List<ListItem>

问题 I am using ExoPlayer to stream videos in a RecyclerView. I am implementing the ExoPlayer inside my RecyclerView Adapter's bind method inside my ViewHolder. The video format I am using is m3u8 and the URL I am using works in a browser. So I know that the video link is valid. I've also testing a youtube link in there. Here is the code from the Recyclerview adapter's ViewHolder -> class ViewHolder private constructor(val binding: FeedRowBinding) : RecyclerView.ViewHolder(binding.root) { fun bind

问题 I am using ExoPlayer to stream videos in a RecyclerView. I am implementing the ExoPlayer inside my RecyclerView Adapter's bind method inside my ViewHolder. The video format I am using is m3u8 and the URL I am using works in a browser. So I know that the video link is valid. I've also testing a youtube link in there. Here is the code from the Recyclerview adapter's ViewHolder -> class ViewHolder private constructor(val binding: FeedRowBinding) : RecyclerView.ViewHolder(binding.root) { fun bind

问题 I am using a Recycler view inside a Horizontal Scroll View to display threaded comments like below: Comment1 Comment1Child1 Comment1Child2 Comment1Child2Child1 Comment1Child3 Comment2 etc. I have done this with the following XML: <HorizontalScrollView android:id="@+id/horizontalScrollView" android:layout_width="match_parent" android:layout_height="wrap_content" android:fillViewport="true" android:scrollbarSize="2dp"> <android.support.v7.widget.RecyclerView android:id="@+id/commentRV" android

问题 I am using a Recycler view inside a Horizontal Scroll View to display threaded comments like below: Comment1 Comment1Child1 Comment1Child2 Comment1Child2Child1 Comment1Child3 Comment2 etc. I have done this with the following XML: <HorizontalScrollView android:id="@+id/horizontalScrollView" android:layout_width="match_parent" android:layout_height="wrap_content" android:fillViewport="true" android:scrollbarSize="2dp"> <android.support.v7.widget.RecyclerView android:id="@+id/commentRV" android

问题 I have a recyclerview which populates data from SQL database. Now each row in the recyclerview has a seekbar which when moved displays it's progress in a textview inside the same row. The problem is when I scroll the recyclerview up or down then return back to the first changed row, the seekbar is returned to its default position. How can I make it save the new position ? In normal activities/fragments I use lifecycle methods as "onPause" to save/restore the state. Here we have

问题 I have a recyclerview which populates data from SQL database. Now each row in the recyclerview has a seekbar which when moved displays it's progress in a textview inside the same row. The problem is when I scroll the recyclerview up or down then return back to the first changed row, the seekbar is returned to its default position. How can I make it save the new position ? In normal activities/fragments I use lifecycle methods as "onPause" to save/restore the state. Here we have

问题 I would like two things : To not reload / refresh the adapter when i delete an item inside RecyclerView (no use of notifyDatasetChanged ). To do so i am using DiffUtils which works perfectly fine. But i also would like to keep the DefaultItemAnimator of the RecyclerView which has apparently no effect with DiffUtils. So my question is : How can i remove / update an item without refreshing all the dataset AND keep a similar animation to the DefaultItemAnimator ? I know many posts gives answers