Show Concerts

app/src/main/java/core/notevault/data/MusicNoteDAO.java

@@ -23,4 +23,7 @@ public interface MusicNoteDAO {
 
     @Insert
     void insertConcert(Concert concert);
+
+    @Query("SELECT * FROM concerts")
+    List<Concert> getAllConcerts();
 }

app/src/main/java/core/notevault/ui/gallery/ConcertAdapter.java

@@ -0,0 +1,63 @@
+package core.notevault.ui.gallery;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+import core.notevault.R;
+import core.notevault.data.Concert;
+import core.notevault.ui.home.NoteSongAdapter;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ConcertAdapter extends RecyclerView.Adapter<ConcertAdapter.ConcertViewHolder> {
+
+    private final List<Concert> concertList;
+
+    public ConcertAdapter(List<Concert> concertList) {
+        this.concertList = concertList;
+    }
+
+    public ConcertAdapter() {
+        this.concertList = new ArrayList<>();
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ConcertViewHolder holder, int position) {
+        holder.concertTitleView.setText(concertList.get(position).getTitle());
+    }
+
+    @Override
+    public int getItemCount() {
+        return concertList.size();
+    }
+
+    @NonNull
+    @Override
+    public ConcertViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.concert_item, parent, false);
+        return new ConcertViewHolder(view);
+    }
+
+    public void updateConcerts(List<Concert> concerts) {
+        this.concertList.clear();
+        this.concertList.addAll(concerts);
+        notifyDataSetChanged();
+    }
+
+    public class ConcertViewHolder extends RecyclerView.ViewHolder {
+        TextView concertTitleView;
+
+        public ConcertViewHolder(@NonNull @NotNull View itemView) {
+            super(itemView);
+            concertTitleView = itemView.findViewById(R.id.concert_title);
+        }
+    }
+
+
+}

app/src/main/java/core/notevault/ui/gallery/GalleryFragment.java

@@ -1,5 +1,6 @@
 package core.notevault.ui.gallery;
 
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -8,14 +9,23 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import androidx.lifecycle.ViewModelProvider;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 import com.google.android.material.floatingactionbutton.FloatingActionButton;
 import core.notevault.R;
+import core.notevault.data.Concert;
+import core.notevault.data.MusicDatabase;
+import core.notevault.data.MusicNote;
+import core.notevault.data.MusicNoteDAO;
 import core.notevault.databinding.FragmentGalleryBinding;
 import core.notevault.ui.gallery.editor.ConcertEditorDialog;
 
+import java.util.List;
+
 public class GalleryFragment extends Fragment {
 
     private FragmentGalleryBinding binding;
+    private ConcertAdapter concertAdapter;
 
     public View onCreateView(@NonNull LayoutInflater inflater,
                              ViewGroup container, Bundle savedInstanceState) {
@@ -25,12 +35,32 @@ public class GalleryFragment extends Fragment {
         binding = FragmentGalleryBinding.inflate(inflater, container, false);
         View root = binding.getRoot();
 
+        RecyclerView recyclerView = root.findViewById(R.id.concert_recycler_view);
+        concertAdapter = new ConcertAdapter();
+        recyclerView.setAdapter(concertAdapter);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
 
+        new LoadConcerts().execute();
         FloatingActionButton addConcertBtn = root.findViewById(R.id.add_concert_btn);
         addConcertBtn.setOnClickListener(v -> onCreateNewConcert());
         return root;
     }
 
+    private class LoadConcerts extends AsyncTask<Void, Void, List<Concert>> {
+
+        @Override
+        protected List<Concert> doInBackground(Void... voids) {
+            MusicDatabase db = MusicDatabase.getDatabase(getContext());
+            MusicNoteDAO musicNoteDAO = db.musicNoteDao();
+            return musicNoteDAO.getAllConcerts();
+        }
+
+        @Override
+        protected void onPostExecute(List<Concert> concerts) {
+            concertAdapter.updateConcerts(concerts); // Aktualisiere den Adapter mit den Titeln
+        }
+    }
+
     public void onCreateNewConcert() {
         ConcertEditorDialog concertEditorDialog = new ConcertEditorDialog();
         concertEditorDialog.show(getParentFragmentManager(), ConcertEditorDialog.TAG);

app/src/main/res/layout/concert_item.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content"
+              android:orientation="vertical"
+              android:padding="16dp">
+
+    <TextView
+            android:id="@+id/concert_title"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textSize="18sp" />
+</LinearLayout>

app/src/main/res/layout/fragment_gallery.xml

@@ -7,19 +7,12 @@
         android:layout_height="match_parent"
         tools:context=".ui.gallery.GalleryFragment">
 
-    <TextView
+    <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/text_gallery"
+            android:id="@+id/concert_recycler_view"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
+            android:layout_height="match_parent"
-            android:layout_marginStart="8dp"
+            android:layout_above="@+id/add_concert_btn"/>
-            android:layout_marginTop="8dp"
+
-            android:layout_marginEnd="8dp"
-            android:textAlignment="center"
-            android:textSize="20sp"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="parent"
-            app:layout_constraintBottom_toBottomOf="parent"/>
     <com.google.android.material.floatingactionbutton.FloatingActionButton
             android:src="@drawable/add_24dp_e8eaed_fill0_wght400_grad0_opsz24"
             android:layout_width="wrap_content"