I'm studying about RecyclerView but when I try to run the code it's a strange error.
android.view.InflateException: Binary XML file line #43: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:761)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:858)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:518)
at android.view.LayoutInflater.inflate(LayoutInflater.java:426)
at br.com.danilo.concurso.adapter.ConcursoAdapter.onCreateViewHolder(ConcursoAdapter.java:32)
at br.com.danilo.concurso.adapter.ConcursoAdapter.onCreateViewHolder(ConcursoAdapter.java:19)
I searched google, but only found generic answers. If you need to see any files let me know
ps: I'm implementing the RecyclerView in a fragment and its data is coming from a separate class that returns a List<Concurso>
ContestAdapter.java
package br.com.danilo.concurso.adapter;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.List;
import br.com.danilo.concurso.R;
import br.com.danilo.concurso.model.Concurso;
/**
* Created by danil on 21/04/2017.
*/
public class ConcursoAdapter extends RecyclerView.Adapter<ConcursoAdapter.MyViewHolder>{
private List<Concurso> mList;
private LayoutInflater mLayoutInflater;
public ConcursoAdapter(Context context, List<Concurso> concursos){
mList = concursos;
mLayoutInflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
}
//CHAMANDO SÒ QUANDO SE TEM A NECESSIDADE DE CRIAR UMA NOVA VIEW
// estado de DURTIN
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
//CONSTRUCAO PESADA
View view = mLayoutInflater.inflate(R.layout.item_list, parent, false);
MyViewHolder myViewHolder = new MyViewHolder(view);
return myViewHolder;
}
//CHAMADO TODA HORA
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
holder.titulo.setText(mList.get(position).getNome());
holder.subtitulo.setText(mList.get(position).getSituacao());
}
@Override
public int getItemCount() {
return mList.size();
}
public void addListItem(Concurso concurso, int position){
mList.add(concurso);
notifyItemInserted(position);
}
//CONSTRUCAO PESADA
public class MyViewHolder extends RecyclerView.ViewHolder{
public TextView titulo;
public TextView subtitulo;
public MyViewHolder(View itemView) {
super(itemView);
titulo = (TextView) itemView.findViewById(R.id.text_titulo);
subtitulo = (TextView) itemView.findViewById(R.id.text_subtitulo);
}
}
}
item_list.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="20dp"
android:paddingLeft="16dp">
<ImageView
android:layout_alignParentLeft="true"
android:id="@+id/image"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginRight="6dp"
android:src="@drawable/ic_dashboard_black_24dp"/>
<TextView
android:textColor="@color/colorPrimary"
android:id="@+id/text_titulo"
android:layout_toRightOf="@+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="16dp"
android:text="Concurso IRPF 2017"
android:textSize="16sp"/>
<TextView
android:textColor="@color/colorPrimary"
android:layout_below="@+id/text_titulo"
android:layout_alignLeft="@+id/text_titulo"
android:id="@+id/text_subtitulo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="16dp"
android:text="40 vagas"
android:textSize="12sp"/>
<ImageView
android:id="@+id/situacao"
android:layout_width="50dp"
android:layout_height="12sp"
android:src="@drawable/ic_notifications_black_24dp"
android:layout_below="@+id/text_titulo"
android:layout_toEndOf="@+id/text_subtitulo"
android:layout_above="@+id/view_divisor" />
<view
android:id="@+id/view_divisor"
android:layout_marginTop="20dp"
android:layout_alignLeft="@+id/image"
android:layout_below="@+id/text_subtitulo"
android:background="@color/colorPrimary"
android:layout_width="match_parent"
android:layout_height="0.8dp" />
What I had to change in Layout for it to work
...<View
android:id="@+id/view_divisor"
android:layout_marginTop="2dp"
android:layout_alignLeft="@+id/image"
android:layout_below="@+id/image"
android:background="@color/colorPrimary"
android:layout_width="match_parent"
android:layout_height="0.8dp" />...