Showing data from db

Author: Dmitriy-Butramyou

.idea/.gitignore

@@ -1,7 +1,6 @@
 package com.butramyou.listoffilms;
 
 import android.os.Bundle;
-import android.view.View;
 
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.fragment.app.Fragment;
@@ -11,12 +10,14 @@
 import com.butramyou.listoffilms.fragments.ToViewFilmsFragment;
 import com.butramyou.listoffilms.fragments.ViewedFilmsFragment;
 import com.butramyou.listoffilms.helpers.BottomNavigationViewHelper;
+import com.butramyou.listoffilms.helpers.DatabaseHelper;
+import com.butramyou.listoffilms.model.Film;
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 import com.google.android.material.snackbar.Snackbar;
 
 public class MainActivity extends AppCompatActivity {
 
-    BottomNavigationView bottomNavigationView;
+    private BottomNavigationView bottomNavigationView;
     private ActivityMainBinding binding;
 
     @Override

app/src/main/java/com/butramyou/listoffilms/MainActivity.java

@@ -11,12 +11,16 @@
 import androidx.fragment.app.Fragment;
 
 import com.butramyou.listoffilms.R;
+import com.butramyou.listoffilms.helpers.DatabaseHelper;
+import com.butramyou.listoffilms.model.Film;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
 
 public class ToViewFilmsFragment extends Fragment {
 
-    public ToViewFilmsFragment() {
-        // Required empty public constructor
-    }
+    private List<Film> toViewFilmsCash = new ArrayList<>();
 
     public static ToViewFilmsFragment getInstance()    {
         return new ToViewFilmsFragment();
@@ -26,20 +30,32 @@ public static ToViewFilmsFragment getInstance()    {
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
-        // Inflate the layout for this fragment
         View view = inflater.inflate(R.layout.fragment_to_view, container, false);
-        String[] films = {"007", "Borne", "Spider-man"};
 
-        ListView listView = view.findViewById(R.id.to_view_films_list);
+        if(toViewFilmsCash.isEmpty()) {
+            DatabaseHelper db = new DatabaseHelper(view.getContext());
+            toViewFilmsCash = db.getFilms(false);
+        }
 
+        List<String> filmsLabel = new ArrayList<>();
+        for (Film film : toViewFilmsCash) {
+            String filmName = film.getName() + " | isViewed: " + film.isViewed();
+            filmsLabel.add(filmName);
+        }
+
+        ListView listView = view.findViewById(R.id.to_view_films_list);
         ArrayAdapter<String> adapter = new ArrayAdapter<>(
                 getActivity(),
                 android.R.layout.simple_list_item_1,
-                films
+                filmsLabel.toArray(new String[0])
         );
-
         listView.setAdapter(adapter);
+
         return view;
     }
 
+    public void cleanCash() {
+        toViewFilmsCash = Collections.emptyList();
+    }
+
 }

app/src/main/java/com/butramyou/listoffilms/fragments/ToViewFilmsFragment.java

@@ -10,12 +10,16 @@
 import androidx.fragment.app.Fragment;
 
 import com.butramyou.listoffilms.R;
+import com.butramyou.listoffilms.helpers.DatabaseHelper;
+import com.butramyou.listoffilms.model.Film;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
 
 public class ViewedFilmsFragment extends Fragment {
 
-    public ViewedFilmsFragment() {
-        // Required empty public constructor
-    }
+    private List<Film> viewedFilmsCash = new ArrayList<>();
 
     public static ViewedFilmsFragment getInstance()    {
         return new ViewedFilmsFragment();
@@ -26,20 +30,30 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         View view = inflater.inflate(R.layout.fragment_viwed, container, false);
 
-        String[] films = {"Nikita", "Zorro", "Black Angel"};
+        if(viewedFilmsCash.isEmpty()) {
+            DatabaseHelper db = new DatabaseHelper(view.getContext());
+            viewedFilmsCash = db.getFilms(true);
+        }
 
-        ListView listView = view.findViewById(R.id.to_view_films_list);
+        List<String> filmsLabel = new ArrayList<>();
+        for (Film film : viewedFilmsCash) {
+            String filmName = film.getName() + " | isViewed: " + film.isViewed();
+            filmsLabel.add(filmName);
+        }
 
+        ListView listView = view.findViewById(R.id.to_view_films_list);
         ArrayAdapter<String> adapter = new ArrayAdapter<>(
                 getActivity(),
                 android.R.layout.simple_list_item_1,
-                films
+                filmsLabel.toArray(new String[0])
         );
-
         listView.setAdapter(adapter);
 
-
         return view;
     }
 
+    public void cleanCash() {
+        viewedFilmsCash = Collections.emptyList();
+    }
+
 }

app/src/main/java/com/butramyou/listoffilms/fragments/ViewedFilmsFragment.java

@@ -39,7 +39,7 @@ public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
         onCreate(db);
     }
 
-    void addFilm(Film film) {
+    public void addFilm(Film film) {
         SQLiteDatabase db = this.getWritableDatabase();
 
         ContentValues values = new ContentValues();
@@ -50,20 +50,40 @@ void addFilm(Film film) {
         db.close();
     }
 
-    Film getFilm(int id) {
+    public Film getFilm(int id) {
+        Film film = new Film();
         SQLiteDatabase db = this.getReadableDatabase();
 
         Cursor cursor = db.query(TABLE_CONTACTS, new String[]{KEY_ID, KEY_NAME, KEY_IS_VIEWED}, KEY_ID + "=?",
                 new String[]{String.valueOf(id)}, null, null, null);
         if (cursor != null) {
             cursor.moveToFirst();
+            film = new Film(Integer.parseInt(cursor.getString(0)), cursor.getString(1), Boolean.parseBoolean(cursor.getString(2)));
         }
 
-        Film film = new Film(Integer.parseInt(cursor.getString(0)), cursor.getString(1), Boolean.parseBoolean(cursor.getString(2)));
-
         return film;
     }
 
+    public List<Film> getFilms(boolean isViewed) {
+        List<Film> films = new ArrayList<>();
+        SQLiteDatabase db = this.getReadableDatabase();
+        Cursor cursor = db.query(TABLE_CONTACTS, new String[]{KEY_ID, KEY_NAME, KEY_IS_VIEWED}, KEY_IS_VIEWED + "=?",
+                new String[]{String.valueOf(isViewed)}, null, null, null);
+
+        if (cursor.moveToFirst()) {
+            do {
+                Film film = new Film();
+                film.setId(Integer.parseInt(cursor.getString(0)));
+                film.setName(cursor.getString(1));
+                film.setViewed(Boolean.parseBoolean(cursor.getString(2)));
+
+                films.add(film);
+            } while (cursor.moveToNext());
+        }
+
+        return films;
+    }
+
     public List<Film> getAllFilms() {
         List<Film> films = new ArrayList<>();