recycler-adapter

Navigation drawer Recycler View null pointer Exception

我的梦境 提交于 2019-12-02 17:54:27
问题 I am working with recycleView as per material design tutorial,I have done all accordingly but my logCat says: E/AndroidRuntime: FATAL EXCEPTION: main Process: com.portal.college.myapplication, PID: 6541 java.lang.NullPointerException at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:5229) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4453) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition

RecyclerView onBindViewHolder only called when getItemViewType changes

你说的曾经没有我的故事 提交于 2019-12-02 17:32:36
I have a viewholder with multiple viewtypes. When scrolling onBindViewHolder is only called when getItemViewType changes value. This causes my list items to not be updated properly. Is this a bug? Or I'm i doing something wrong here. This seems very strange behaviour from the new recyclerView class. Here is my adapter: package se.davison.smartrecycleradapter; import android.content.Context; import android.support.v7.widget.RecyclerView; import android.util.Log; import android.util.SparseIntArray; import android.view.LayoutInflater; import android.view.ViewGroup; import java.util.ArrayList;

Cannot call notifyItemInserted() from RecyclerView.OnScrollListener

拟墨画扇 提交于 2019-12-02 17:25:20
Recently I upgrade my recyclerview-v7:23 to recyclerview-v7:24.2.0 . My applicaton has an endless scroll list. The error message points to the line notifyItemInserted when I add loading view into RecyclerView (null object it means loading, id 0 is empty, -1 is end of the page) and it works fine before (recyclerview-v7:23) but suddenly I got error like this and somehow my loading show up twice then when it removed one, there is one loading that still visible in the top. W/RecyclerView: Cannot call this method in a scroll callback. Scroll callbacks might be run during a measure & layout pass

Change value recycleview.adapter and save it to textview in mainactivity?

你。 提交于 2019-12-02 16:31:34
问题 When I change the value from recycleview.adapter, i want to set it the value to textview in mainactivity, how to do it? it will be like this, the recycle data retreive from my json, so it will be random and many data, when I change or add the value of "total win" to more than "0", the textview at bottom will be appear, and "total all" will count from data I add, when its done, I want to send the "result" value to next activity or post and save it to mysql dbase, here my code of MainActivity :

In Recycle view how to Highlight always one adapter item with the click and without click

空扰寡人 提交于 2019-12-02 13:36:12
Here I clicked on the item to change item background and color. I've stored the clicked item value in the database and change the layout color and text color and recreating the adapter and showing the list again while refreshing. But layout colors not changed when I get its position. Please show the right path to handle the set of background item color always. public class LoadVehicleTypeAdapter extends RecyclerView.Adapter<LoadVehicleTypeAdapter.CarTypesHolder> { private List<TaxiTypeResponse.Message> CarTypesModelsList; private Context mContext; VehicleTypeView vehicleTypeView; int I = -1;

Change value recycleview.adapter and save it to textview in mainactivity?

别说谁变了你拦得住时间么 提交于 2019-12-02 11:45:38
When I change the value from recycleview.adapter, i want to set it the value to textview in mainactivity, how to do it? it will be like this, the recycle data retreive from my json, so it will be random and many data, when I change or add the value of "total win" to more than "0", the textview at bottom will be appear, and "total all" will count from data I add, when its done, I want to send the "result" value to next activity or post and save it to mysql dbase, here my code of MainActivity : ... private List<Details> listDetails = new ArrayList<>(); private RecyclerAdapter viewAdapter;

How can I get the value in Firebase Database with android?

北慕城南 提交于 2019-12-02 11:32:50
问题 My Firebase Realtime Database is like this : {Singer : Billie Eilish : 01 : songType : "type01" songName : "bad guy" 02 : songType : "type02" songName : "bury a friend" Lauv : 01 : songType : "type01" songName : "I Like Me Better" 02 : songType : "type03" songName : "lonely" Anne Marie : 01 : songType : "type02" songName : "2002" ... ... ... } If I want to get all the song that "type01", what should I do? This is my Adapter class that show the data in recyclerView in MainActivity. Adapter

Navigation drawer Recycler View null pointer Exception

混江龙づ霸主 提交于 2019-12-02 10:11:47
I am working with recycleView as per material design tutorial,I have done all accordingly but my logCat says: E/AndroidRuntime: FATAL EXCEPTION: main Process: com.portal.college.myapplication, PID: 6541 java.lang.NullPointerException at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:5229) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4453) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4363) at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager

how i highlighted item in first launch of app in recycle

徘徊边缘 提交于 2019-12-02 08:29:01
I have integrated item is highlighted in the first launch of the app in my project. I'll use to save the selected item on the click of the adapter in the SQL database and set the value in the first launch of the app, but it does not change the background and text color. please help me in solving the issue and suggest me the right way public class LoadVehicleTypeAdapter extends RecyclerView.Adapter<LoadVehicleTypeAdapter.CarTypesHolder> { private List<TaxiTypeResponse.Message> CarTypesModelsList; private Context mContext; VehicleTypeView vehicleTypeView; int I=-1; int idd=0; Activity activity;

Error “Incompatible types” while adding NativeAds in recyclerView

坚强是说给别人听的谎言 提交于 2019-12-02 07:01:53
问题 I am trying to add Native ads in my recyclerView. For that I am following this tutorial. But looks like my RecyclerViewAdapter is a little bit different than what they have with them. package com.comp.app.adapters; public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.RecyclerViewHolder> { private Context context; private Constants constants; private String androidId; private String id; private ArrayList<CardSetterGetter> arrayList = new ArrayList<CardSetterGetter>