I keep getting the error "E/RecyclerView: No adapter attached; skipping layout" when the RecyclerView list is shown. I'm getting data correctly from API but I got "void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference"
I know this question has been asked a lot before but I checked most of the questions and none has worked for me.
This is my fragment:
public class HomeFragment extends Fragment {
private View view;
private RecyclerView recyclerView;
private ArrayList<Result> arrayList;
private SwipeRefreshLayout refreshLayout;
private PostAdapter postAdapter;
private MaterialToolbar toolbar;
private SharedPreferences userPref;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
view = inflater.inflate(R.layout.layout_home,container,false);
return view;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
init();
}
private void init() {
userPref = getContext().getApplicationContext().getSharedPreferences("user", Context.MODE_PRIVATE);
recyclerView = (RecyclerView)view.findViewById(R.id.recyclerHome);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
refreshLayout = (SwipeRefreshLayout)view.findViewById(R.id.swipeHome);
toolbar =(MaterialToolbar) view.findViewById(R.id.toolbarHome);
((HomeActivity)getContext()).setSupportActionBar(toolbar);
getResults();
refreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
getResults();
}
});
}
private void getResults() {//Working Fine}
}
My adapter:
public class PostAdapter extends RecyclerView.Adapter<PostAdapter.PostsHolder>{
private ArrayList<Result> list;
private Context context;
public PostAdapter(Context context, ArrayList<Result> list) {
this.list = new ArrayList<Result>(list);
this.context = context;
}
@NonNull
@Override
public PostsHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_home, parent, false);
return new PostsHolder(view);
}
@Override
public void onBindViewHolder(@NonNull PostsHolder holder, int position) {
Result result = list.get(position);
holder.imgPostDate.setText(result.getDate());
}
@Override
public int getItemCount() {
return list.size();
}
public static class PostsHolder extends RecyclerView.ViewHolder{
private TextView imgPostProfile,imgPostName,imgPostDate;
private ImageButton btnPostOption;
public PostsHolder(@NonNull View itemView) {
super(itemView);
imgPostProfile =(TextView) itemView.findViewById(R.id.imgPostProfile);
imgPostName = (TextView)itemView.findViewById(R.id.imgPostName);
imgPostDate =(TextView) itemView.findViewById(R.id.imgPostDate);
btnPostOption =(ImageButton) itemView.findViewById(R.id.btnPostOption);
}
}
}
I modified my code according to the answers I found to similar questions but none of them worked.
layout_home
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.MaterialToolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/toolbarHome"
android:elevation="1dp"
android:theme="@style/Theme.MaCoSISBottomAppBar"
app:title=""
tools:targetApi="lollipop">
<!-- <ImageView-->
<!-- android:layout_width="100dp"-->
<!-- android:layout_height="40dp"-->
<!-- android:src="@drawable/logo_dark"/>-->
</com.google.android.material.appbar.MaterialToolbar>
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:layout_width="match_parent"
android:id="@+id/swipeHome"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recyclerHome"
android:layout_height="match_parent"
android:layout_width="match_parent">
</androidx.recyclerview.widget.RecyclerView>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
</LinearLayout>
layout_post
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:clickable="true"
android:focusable="true"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="10dp">
<TextView
android:id="@+id/imgPostProfile"
android:layout_width="60sp"
android:layout_height="60sp"
android:background="@drawable/shape_circle"
android:text="MC"
android:gravity="center"
android:textColor="@color/colorWhite"
android:textSize="14sp" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:paddingLeft="6dp"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imgPostName"
android:text="BBAD1252 Social Harmony and Business Skills Development"
android:textColor="@color/colorBlack"
android:textSize="14sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imgPostDate"
android:text="12 Novermber 2020"
android:textColor="@color/colorLightGrey"
android:textSize="12dp" />
</LinearLayout>
<ImageButton
android:id="@+id/btnPostOption"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="8dp"
android:background="@android:color/transparent"
android:layout_gravity="center_vertical"
android:src="@drawable/ic_baseline_more_vert_24"/>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1px"
android:background="@color/colorLightGrey"
/>
</LinearLayout>
</androidx.cardview.widget.CardView>
