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Code Issues Releases Wiki Activity

Poprawienie dziedziczenia Adaptera, poprawienie metod, dodanie wyświetlania layoutu

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Naiki00 2021-01-08 16:47:56 +01:00
parent f4623b2d45
commit 4d448b5da0
1 changed files with 19 additions and 9 deletions
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28
app/src/main/java/com/example/notatkon/note/NoteAdapter.java
View File

@ -1,11 +1,13 @@
package com.example.notatkon.note; package com.example.notatkon.note;
import android.view.LayoutInflater;
import android.view.View; import android.view.View;
import android.view.ViewGroup; import android.view.ViewGroup;
import android.widget.TextView; import android.widget.TextView;
import androidx.annotation.NonNull; import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView; import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.RecyclerView.Adapter;
import com.example.notatkon.R; import com.example.notatkon.R;
@ -13,7 +15,10 @@ import org.w3c.dom.Text;
import java.util.ArrayList; import java.util.ArrayList;
public class NoteAdapter extends RecyclerView.Adapter{ //https://developer.android.com/guide/topics/ui/layout/recyclerview
/* Aby klasa była adapterem musi dziedziczyć po RecyclerView.Adapter oraz wskazywać na ViewHolder */
public class NoteAdapter extends RecyclerView.Adapter<NoteAdapter.ViewHolder>{
private ArrayList<Note> arrNotes = new ArrayList<>(); private ArrayList<Note> arrNotes = new ArrayList<>();
@ -21,12 +26,11 @@ public class NoteAdapter extends RecyclerView.Adapter{
private RecyclerView noteRecyclerView; private RecyclerView noteRecyclerView;
//implementacja ViewHoldera //implementacja ViewHoldera
//https://developer.android.com/guide/topics/ui/layout/recyclerview public static class ViewHolder extends RecyclerView.ViewHolder {
private class NoteViewHolder extends RecyclerView.ViewHolder {
public TextView noteTitle; public TextView noteTitle;
public TextView noteContent; public TextView noteContent;
public NoteViewHolder(@NonNull View itemView) { public ViewHolder(@NonNull View itemView) {
super(itemView); super(itemView);
noteTitle = (TextView) itemView.findViewById(R.id.note_title); noteTitle = (TextView) itemView.findViewById(R.id.note_title);
noteContent = (TextView) itemView.findViewById(R.id.note_content); noteContent = (TextView) itemView.findViewById(R.id.note_content);
@ -35,17 +39,23 @@ public class NoteAdapter extends RecyclerView.Adapter{
@NonNull @NonNull
@Override @Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
return null;
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.view_note, parent, false);
// utwórz nowy ViewHolder i usuń
return new ViewHolder(view);
} }
///// Replace the contents of a view (invoked by the layout manager)
@Override @Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) { public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
Note note = arrNotes.get(position);
((ViewHolder) holder).noteTitle.setText(note.getNoteTitle());
((ViewHolder) holder).noteContent.setText(note.getNoteContent());
} }
@Override @Override
public int getItemCount() { public int getItemCount() {
return 0; return arrNotes.size();
} }
} }