diff --git a/app/src/main/assets/coupons.json b/app/src/main/assets/coupons.json
new file mode 100644
index 0000000..39a85db
--- /dev/null
+++ b/app/src/main/assets/coupons.json
@@ -0,0 +1,6 @@
+[
+  {
+    "code": "2345",
+    "reward": "fdasfasdf"
+  }
+]
\ No newline at end of file
diff --git a/app/src/main/assets/locations.json b/app/src/main/assets/locations.json
new file mode 100644
index 0000000..3a2a3c2
--- /dev/null
+++ b/app/src/main/assets/locations.json
@@ -0,0 +1,12 @@
+[
+  {
+    "name": "kees kroket",
+    "coordinates": "2.4654645,6.2342323",
+    "description": "lekkere patatjes"
+  },
+  {
+    "name" : "locatie2",
+    "coordinates": "3.65656,9.564564",
+    "description": "locatie 2"
+  }
+]
\ No newline at end of file
diff --git a/app/src/main/assets/routes.json b/app/src/main/assets/routes.json
new file mode 100644
index 0000000..9c84f63
--- /dev/null
+++ b/app/src/main/assets/routes.json
@@ -0,0 +1,14 @@
+[
+  {
+    "name": "rondje stad",
+    "locations": [
+      {
+        "name": "kees kroket",
+        "coordinates": "2.4654645,6.2342323",
+        "description": "lekkere patatjes"
+      }
+    ],
+    "totalDistance": 2.3434,
+    "totalTime": 342342
+  }
+]
\ No newline at end of file
diff --git a/app/src/main/java/com/a1/nextlocation/MainActivity.java b/app/src/main/java/com/a1/nextlocation/MainActivity.java
index ea457cf..9ba6645 100644
--- a/app/src/main/java/com/a1/nextlocation/MainActivity.java
+++ b/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 +31,13 @@ public class MainActivity extends AppCompatActivity {
         BottomNavigationView bottomNav = findViewById(R.id.navbar);
         bottomNav.setOnNavigationItemSelectedListener(navListener);
 
+        LocationListManager.INSTANCE.setContext(this);
+        LocationListManager.INSTANCE.load();
+        CouponListManager.INSTANCE.setContext(this);
+        CouponListManager.INSTANCE.load();
+        RouteListManager.INSTANCE.setContext(this);
+        RouteListManager.INSTANCE.load();
+
         getSupportFragmentManager().beginTransaction().replace(R.id.fragment_layout, new HomeFragment()).commit();
     }
 
diff --git a/app/src/main/java/com/a1/nextlocation/data/FileIO.java b/app/src/main/java/com/a1/nextlocation/data/FileIO.java
index 5672d74..a47f76e 100644
--- a/app/src/main/java/com/a1/nextlocation/data/FileIO.java
+++ b/app/src/main/java/com/a1/nextlocation/data/FileIO.java
@@ -2,30 +2,49 @@ package com.a1.nextlocation.data;
 
 import android.content.Context;
 import android.content.res.AssetManager;
+import android.util.Log;
 
 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;
 
+import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.Reader;
+import java.lang.reflect.Type;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 
 public class FileIO<T> {
+    private final String TAG = FileIO.class.getCanonicalName();
 
 
-    public Class<T> readFileData(Context context, String fileName) {
+    public T readFileData(Context context, String fileName, Type typeOf) {
         Gson gson = new Gson();
         AssetManager am = context.getAssets();
-        Class<T> res = null;
+        T res = null;
+        StringBuilder sb = new StringBuilder();
         try {
             InputStream is = am.open(fileName);
             InputStreamReader inputStreamReader = new InputStreamReader(is);
-            res = gson.fromJson(inputStreamReader,new TypeToken<T>(){}.getType());
+            BufferedReader reader = new BufferedReader(inputStreamReader);
+            String line;
+            while ((line = reader.readLine())!= null) {
+                sb.append(line);
+            }
+
+
+            Log.d(TAG, "readFileData: got string: " + sb.toString());
+            res = gson.fromJson(sb.toString(),typeOf);
+            Log.d(TAG, "readFileData: got object: " + res);
+
+            reader.close();
+            inputStreamReader.close();
+            is.close();
 
         } catch (IOException e) {
+            Log.d(TAG, "readFileData:  exception! " + e.getLocalizedMessage());
             e.printStackTrace();
         }
         return res;
diff --git a/app/src/main/java/com/a1/nextlocation/fragments/HomeFragment.java b/app/src/main/java/com/a1/nextlocation/fragments/HomeFragment.java
index 2fda536..d6a06b4 100644
--- a/app/src/main/java/com/a1/nextlocation/fragments/HomeFragment.java
+++ b/app/src/main/java/com/a1/nextlocation/fragments/HomeFragment.java
@@ -20,6 +20,10 @@ import androidx.core.content.ContextCompat;
 import androidx.fragment.app.Fragment;
 
 import com.a1.nextlocation.R;
+import com.a1.nextlocation.data.Route;
+import com.a1.nextlocation.recyclerview.CouponListManager;
+import com.a1.nextlocation.recyclerview.LocationListManager;
+import com.a1.nextlocation.recyclerview.RouteListManager;
 
 import org.osmdroid.api.IMapController;
 import org.osmdroid.config.Configuration;
@@ -96,6 +100,7 @@ public class HomeFragment extends Fragment {
         // add location manager and set the start point
         LocationManager locationManager = (LocationManager) requireActivity().getSystemService(Context.LOCATION_SERVICE);
 
+
         try {
             Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
             GeoPoint startPoint = new GeoPoint(location.getLatitude(), location.getLongitude());
diff --git a/app/src/main/java/com/a1/nextlocation/recyclerview/CouponListManager.java b/app/src/main/java/com/a1/nextlocation/recyclerview/CouponListManager.java
index 72e7c65..b99f153 100644
--- a/app/src/main/java/com/a1/nextlocation/recyclerview/CouponListManager.java
+++ b/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() {
diff --git a/app/src/main/java/com/a1/nextlocation/recyclerview/CouponLoader.java b/app/src/main/java/com/a1/nextlocation/recyclerview/CouponLoader.java
index d77a156..3cfcf13 100644
--- a/app/src/main/java/com/a1/nextlocation/recyclerview/CouponLoader.java
+++ b/app/src/main/java/com/a1/nextlocation/recyclerview/CouponLoader.java
@@ -1,26 +1,32 @@
 package com.a1.nextlocation.recyclerview;
 
 import android.content.Context;
+import android.util.Log;
 
 import com.a1.nextlocation.data.Coupon;
 import com.a1.nextlocation.data.FileIO;
 import com.a1.nextlocation.data.Location;
+import com.google.gson.reflect.TypeToken;
 
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 public class CouponLoader implements Loader<List<Coupon>> {
     private final Context context;
+    private final String TAG = CouponLoader.class.getCanonicalName();
+
     public CouponLoader(Context context) {
         this.context = context;
     }
+
     @Override
-    public List<Coupon> load() {
-        FileIO<List<Coupon>> fileIO = new FileIO<>();
-        try {
-            return fileIO.readFileData(context,"coupons.json").newInstance();
-        } catch (IllegalAccessException | InstantiationException e) {
-            e.printStackTrace();
-        }
-        return null;
+    public ArrayList<Coupon> load() {
+        FileIO<ArrayList<Coupon>> fileIO = new FileIO<>();
+        ArrayList<Coupon> res = fileIO.readFileData(context, "coupons.json",new TypeToken<ArrayList<Coupon>>(){}.getType());
+        Log.d(TAG, "load: " + res);
+
+        return res == null ? new ArrayList<>() : res;
+
     }
 }
diff --git a/app/src/main/java/com/a1/nextlocation/recyclerview/LocationListManager.java b/app/src/main/java/com/a1/nextlocation/recyclerview/LocationListManager.java
index 7ae7c43..9313e36 100644
--- a/app/src/main/java/com/a1/nextlocation/recyclerview/LocationListManager.java
+++ b/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() {
diff --git a/app/src/main/java/com/a1/nextlocation/recyclerview/LocationLoader.java b/app/src/main/java/com/a1/nextlocation/recyclerview/LocationLoader.java
index 6a83ccc..f56d8fa 100644
--- a/app/src/main/java/com/a1/nextlocation/recyclerview/LocationLoader.java
+++ b/app/src/main/java/com/a1/nextlocation/recyclerview/LocationLoader.java
@@ -4,10 +4,13 @@ import android.content.Context;
 
 import com.a1.nextlocation.data.FileIO;
 import com.a1.nextlocation.data.Location;
+import com.google.gson.reflect.TypeToken;
 
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
-public class LocationLoader implements Loader<List<Location>>{
+public class LocationLoader implements Loader<List<Location>> {
     private final Context context;
 
     public LocationLoader(Context context) {
@@ -15,13 +18,11 @@ public class LocationLoader implements Loader<List<Location>>{
     }
 
     @Override
-    public List<Location> load() {
-        FileIO<List<Location>> fileIO = new FileIO<>();
-        try {
-            return fileIO.readFileData(context,"locations.json").newInstance();
-        } catch (IllegalAccessException | InstantiationException e) {
-            e.printStackTrace();
-        }
-        return null;
+    public ArrayList<Location> load() {
+        FileIO<ArrayList<Location>> fileIO = new FileIO<>();
+
+        ArrayList<Location> res = fileIO.readFileData(context,"locations.json",new TypeToken<ArrayList<Location>>(){}.getType());
+
+        return res == null ? new ArrayList<>() : res;
     }
 }
diff --git a/app/src/main/java/com/a1/nextlocation/recyclerview/RouteListManager.java b/app/src/main/java/com/a1/nextlocation/recyclerview/RouteListManager.java
index b8c4a37..f72fcbe 100644
--- a/app/src/main/java/com/a1/nextlocation/recyclerview/RouteListManager.java
+++ b/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;
     }
diff --git a/app/src/main/java/com/a1/nextlocation/recyclerview/RouteLoader.java b/app/src/main/java/com/a1/nextlocation/recyclerview/RouteLoader.java
index 63f46e3..df65664 100644
--- a/app/src/main/java/com/a1/nextlocation/recyclerview/RouteLoader.java
+++ b/app/src/main/java/com/a1/nextlocation/recyclerview/RouteLoader.java
@@ -5,24 +5,25 @@ import android.content.Context;
 import com.a1.nextlocation.data.FileIO;
 import com.a1.nextlocation.data.Location;
 import com.a1.nextlocation.data.Route;
+import com.google.gson.reflect.TypeToken;
 
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 public class RouteLoader implements Loader<List<Route>> {
     private final Context context;
+
     public RouteLoader(Context context) {
         this.context = context;
     }
 
     @Override
-    public List<Route> load() {
+    public ArrayList<Route> load() {
+
+        FileIO<ArrayList<Route>> fileIO = new FileIO<>();
+        ArrayList<Route> res = fileIO.readFileData(context, "routes.json",new TypeToken<ArrayList<Route>>(){}.getType());
+        return res == null ? new ArrayList<>() : res;
 
-        FileIO<List<Route>> fileIO = new FileIO<>();
-        try {
-            return fileIO.readFileData(context,"routes.json").newInstance();
-        } catch (IllegalAccessException | InstantiationException e) {
-            e.printStackTrace();
-        }
-        return null;
     }
 }