Update SavedPlaylists.java

app/src/main/java/com/example/soulfood_assignment2/SavedPlaylists.java

 package com.example.soulfood_assignment2;
 
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.view.View;
+import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.Toast;
 
 import java.util.ArrayList;
+import java.util.Set;
 
 public class SavedPlaylists extends AppCompatActivity {
-    public static SharedPreferences playlists;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_saved_playlists);
+        SharedPreferences playlists = getApplicationContext().getSharedPreferences("Saves", 0);
 
-        playlists = getPreferences(Context.MODE_PRIVATE);
+        Set<String> playlistTags = playlists.getStringSet("saves", null);
+        ArrayList<String> saved = new ArrayList<String>();
 
-        ArrayList<String> saved = new ArrayList<>();
-        saved.add("Playlist " + playlists.getString("playlist 1", "0"));
-        saved.add("Playlist " + playlists.getString("playlist 2", "0"));
-        saved.add("Playlist " + playlists.getString("playlist 3", "0"));
-
-        for (String s: saved) {
-            if(s.equals("Playlist 0")) {
-                saved.remove(s);
-            }
+        for(String s : playlistTags){
+            String[] stringParts = s.split(" ");
+            String message = "Playlist_for_cuisine: " + stringParts[0] + " ,time: " + stringParts[1] + " ,vibe: " + stringParts[2];
+            saved.add(message);
         }
 
         ListView listView = findViewById(R.id.listViewPlaylists);
 
         ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, saved);
         listView.setAdapter(adapter);
-    }
 
-    /*
-    saves a playlist as a shared reference if there's space
-    produces a toast if not
-    needs the id stored in the databse as input
-     */
-    public void savePlaylist(String databaseId) {
-        SharedPreferences.Editor editor = playlists.edit();
-
-        if (playlists.getString("playlist 1", "0").equals("0")) {
-            editor.putString("playlist 1", "id");
-            editor.commit();
-        } else if (playlists.getString("playlist 2", "0").equals("0")) {
-            editor.putString("playlist 2", "id");
-            editor.commit();
-        } else if (playlists.getString("playlist 3", "0").equals("0")) {
-            editor.putString("playlist 3", "id");
-            editor.commit();
-        } else {
-            Toast.makeText(getApplicationContext(),"Saved playlists full!", Toast.LENGTH_LONG).show();
-        }
+        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                String item = listView.getItemAtPosition(position).toString();
+                String[] itemParts = item.split(" ");
+                buildPlaylistOnClick(view, itemParts[5], itemParts[1], itemParts[3]);
+            }
+        });
+    }
 
+    public void buildPlaylistOnClick(View view, String vibe, String cuisine, String timeOfDay) {
+        Intent intent = new Intent(this, playlistView.class);
+        intent.putExtra("vibe", vibe);
+        intent.putExtra("cuisine", cuisine);
+        intent.putExtra("timeofday", timeOfDay);
+        startActivity(intent);
     }
 }