made listmanagers enums

app/src/main/assets/locations.json

@@ -3,5 +3,10 @@
     "name": "kees kroket",
     "coordinates": "2.4654645,6.2342323",
     "description": "lekkere patatjes"
+  },
+  {
+    "name" : "locatie2",
+    "coordinates": "3.65656,9.564564",
+    "description": "locatie 2"
   }
 ]

app/src/main/java/com/a1/nextlocation/MainActivity.java

@@ -13,6 +13,9 @@ import com.a1.nextlocation.fragments.HomeFragment;
 import com.a1.nextlocation.fragments.RouteFragment;
 import com.a1.nextlocation.fragments.SettingsFragment;
 import com.a1.nextlocation.fragments.StatisticFragment;
+import com.a1.nextlocation.recyclerview.CouponListManager;
+import com.a1.nextlocation.recyclerview.LocationListManager;
+import com.a1.nextlocation.recyclerview.RouteListManager;
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 
 public class MainActivity extends AppCompatActivity {
@@ -28,6 +31,10 @@ public class MainActivity extends AppCompatActivity {
         BottomNavigationView bottomNav = findViewById(R.id.navbar);
         bottomNav.setOnNavigationItemSelectedListener(navListener);
 
+        LocationListManager.INSTANCE.setContext(this);
+        CouponListManager.INSTANCE.setContext(this);
+        RouteListManager.INSTANCE.setContext(this);
+
         getSupportFragmentManager().beginTransaction().replace(R.id.fragment_layout, new HomeFragment()).commit();
     }
 

app/src/main/java/com/a1/nextlocation/fragments/HomeFragment.java

@@ -100,6 +100,9 @@ public class HomeFragment extends Fragment {
         // add location manager and set the start point
         LocationManager locationManager = (LocationManager) requireActivity().getSystemService(Context.LOCATION_SERVICE);
 
+        LocationListManager.INSTANCE.load();
+
+
         try {
             Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
             GeoPoint startPoint = new GeoPoint(location.getLatitude(), location.getLongitude());
@@ -116,10 +119,6 @@ public class HomeFragment extends Fragment {
 
         }
 
-        CouponListManager couponListManager = new CouponListManager(requireContext());
-        couponListManager.load();
-        Log.d(TAG, "initMap: " + couponListManager.getCoupon(0).getCode());
-
     }
     private void requestPermissionsIfNecessary(String... permissions) {
         ArrayList<String> permissionsToRequest = new ArrayList<>();

app/src/main/java/com/a1/nextlocation/recyclerview/CouponListManager.java

@@ -4,15 +4,18 @@ import android.content.Context;
 
 import com.a1.nextlocation.data.Coupon;
 
+import java.util.ArrayList;
 import java.util.List;
 
-public class CouponListManager {
+public enum CouponListManager {
+    INSTANCE;
 
     private List<Coupon> couponList;
     private Context context;
 
-    public CouponListManager(Context context){
+    public void setContext(Context context) {
         this.context = context;
+        this.couponList = new ArrayList<>();
     }
 
     public List<Coupon> getCouponList() {

app/src/main/java/com/a1/nextlocation/recyclerview/LocationListManager.java

@@ -4,16 +4,18 @@ import android.content.Context;
 
 import com.a1.nextlocation.data.Location;
 
+import java.util.ArrayList;
 import java.util.List;
 
-public class LocationListManager {
+public enum LocationListManager {
+    INSTANCE;
 
     private List<Location> locationList;
     private Context context;
 
-    public LocationListManager(Context context){
+    public void setContext(Context context) {
         this.context = context;
-
+        this.locationList = new ArrayList<>();
     }
 
     public List<Location> getLocationList() {

app/src/main/java/com/a1/nextlocation/recyclerview/RouteListManager.java

@@ -4,17 +4,21 @@ import android.content.Context;
 
 import com.a1.nextlocation.data.Route;
 
+import java.util.ArrayList;
 import java.util.List;
 
-public class RouteListManager{
+public enum RouteListManager{
+    INSTANCE;
 
     private List<Route> routeList;
     private Context context;
 
-    public RouteListManager(Context context){
+    public void setContext(Context context) {
         this.context = context;
+        this.routeList = new ArrayList<>();
     }
 
+
     public List<Route> getRouteList() {
         return routeList;
     }