android-recyclerview

问题 Iam using Recyclerview and update it by notifyItemChanged() recyclerView using linearlayoutmanager when data updated from socket i update recycler by adapter notifyItemChanged() socket send many data per second that mean i call adapter many times per second its working but when update it more times gives this error Exception java.lang.IllegalStateException: Already in the pool! android.support.v7.widget.AdapterHelper.recycleUpdateOp (AdapterHelper.java:742) android.support.v7.widget

问题 I have a issue that reprodusing only on Android 5.1.1 and few devices on 5.1. On the rest of versions works fine. Recycler view have onClick listener whereI try to update View Visibility from GONE to VISIBLE or conversely. After clicking on item nothing changes on UI. Note: If I close (BackButton) Fragment and open once again - UI will be updated. Even after pressing back button I see that UI updating for few milliseconds before destroing. I tryed to notify all adapter, current item,

问题 What I'm trying to do is to pass a data from a specific user into another activity using it's userID as unique ID It keeps send the same data into the other activity, I dont know how to do it This is code is for the Fragment_Home where I use to get data from Firebase and populate it into the RecyclerView , and where the Onclick is in at the moment. public class FragmentRO_Home extends Fragment { private Intent intent; private DatabaseReference database; RecyclerView recyclerView; Recycler

问题 I want when I click the alertdialog save button add new item to recyclerview and refresh it to show the new item at the same time .... its take the data from sqlite database.and retrieve from same DB EditText title, description; Button save; RecyclerView recycler; insertDatadb db = new insertDatadb(this); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); recycler = findViewById(R.id.data_recycle); adapter

问题 I want to achieve multiselect in recyclerview. I have almost got it but it behaves weirdly at times or when there are many items. I would like to have multiselect function where in on selection I want to change the background color of the item and revert the textcolor of all the text views inside it. I am facing a weird issue, if I select the 1st record and scroll down then even the 8th record gets selected automatically. And if I select 2nd record then 9th one also gets selected. Here is the

问题 I am using RecyclerView to display the list of rows, each row has a buy button. when the user buys an element, the method notifydatasetchanged() is called and the buy button has to change the background color for example to red. Important, The user have to buys only one element, and I have a thread that runs every 5 seconds looking for new answers, if there is a new answer, it is added to the list and scroll to last position. My problem is when I have the list of buttons and only one is red

问题 I am making a chat app in which I have groups. The admin chooses who are there and others can't see it. I can hide it. but the one below is showing the one above it. thus I decided to delete it from the recycler view. but I don't want to delete it from firebase because the group should be visible to others who are in the group. I have googled and searched StackOverflow, no one had seemed to come across my issue. tried other sorts of stuff but nothing worked out. Is there any way I can remove

问题 I have toggle buttons inside recycler view i'm saving the boolean value in sharedpreference to recognize if the toggle button is pressed or not on every restart of application now the problem is when i click on a 1 toggle button and close the application every toggle button get on same thing for off button there is no position connection between the toggle button and recycler view here is my code @Override public MyHolder onCreateViewHolder(ViewGroup parent, int viewType) { View v=

问题 I have some problems with RecyclerView Adapter. I want to do the list with id index: 1,2,3... When an item is removed it should set every next item position to position-1. Like this: (for example delete number 3) 1|2|3|4|5 -> 1|2|3|4 It works perfectly when: @Override public long getItemId(int position) { return position; } @Override public int getItemViewType(int position) { return position; } But this causes other errors with notifyItemRemoved() . When I set: @Override public long getItemId

问题 I have a Main Activity that extends AppCompatActivity with a RecyclerView. It is working fine to load a List of CardViews from a Room database and then filter the List. Problem occurs after pressing Back space to return the user to the original List. @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(layout.activity_main); ... mViewModel = ViewModelProviders.of(MainActivity.this).get(MainViewModel.class); mViewModel.getAllCards()