diff --git a/app/src/main/java/org/ntlab/amaryllis/client/Amaryllis.java b/app/src/main/java/org/ntlab/amaryllis/client/Amaryllis.java
index 92081c7..bebc9ad 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/Amaryllis.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/Amaryllis.java
@@ -1,9 +1,16 @@
 package org.ntlab.amaryllis.client;
 
 import android.app.Application;
+import android.content.Intent;
 import android.content.SharedPreferences;
 import android.location.Location;
 
+import org.ntlab.amaryllis.client.entities.AmaryllisBackgroundService;
+import org.ntlab.amaryllis.client.entities.PlayListListener;
+import org.ntlab.amaryllis.client.voiceservice.VoiceMemo;
+
+import java.util.ArrayList;
+
 public class Amaryllis extends Application {
     private String token = null;
     private String uid = null;
@@ -11,7 +18,18 @@
     private String name = null;
     private String new_introduction = null;
     private Location location;
-    
+    private ArrayList<PlayListListener> playListListeners;
+    private int index=0;
+    AmaryllisBackgroundService amaryllisbackgroundservice;
+    private ArrayList<VoiceMemo> playList;
+
+//    public Amaryllis(){
+//        super();
+//        Intent intent=new Intent(this,amaryllisbackgroundservice.getClass());
+//        startService(intent);
+//        amaryllisbackgroundservice=(AmaryllisBackgroundService)getApplicationContext();
+//       for(PlayListListener pl: playListListeners) amaryllisbackgroundservice.subscribe(pl);
+//    }
     public void setUid(String uid) {
         SharedPreferences prefData = getSharedPreferences("pref_data", MODE_PRIVATE);
         SharedPreferences.Editor editor = prefData.edit();
@@ -95,8 +113,12 @@
         return location;
     }
 
-    public void getBackgroundService(){
 
+    public AmaryllisBackgroundService getBackgroundService() {
+        return amaryllisbackgroundservice;
+    }
+
+    public void getPlayList(){
     }
 
 }
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/MainActivity.java b/app/src/main/java/org/ntlab/amaryllis/client/MainActivity.java
index c7d807b..28a99cb 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/MainActivity.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/MainActivity.java
@@ -28,11 +28,18 @@
 
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 
+import org.ntlab.amaryllis.client.entities.Category;
 import org.ntlab.amaryllis.client.fragment.MapsFragment;
 import org.ntlab.amaryllis.client.resources.AccountsRest;
+import org.ntlab.amaryllis.client.resources.CategoriesRest;
 
 import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
 
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
 import retrofit2.Retrofit;
 import retrofit2.converter.jackson.JacksonConverterFactory;
 
@@ -42,6 +49,7 @@
     private static final String TAG = MainActivity.class.getSimpleName();
     LocationManager locationManager;
     private ArrayList<LocationListener> listeners = new ArrayList<>();
+    private HashMap<String ,Category> categories;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -56,33 +64,37 @@
         NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
         NavigationUI.setupWithNavController(navView, navController);
 
-//        if (ContextCompat.checkSelfPermission(this,
-//                Manifest.permission.ACCESS_FINE_LOCATION) !=
-//                PackageManager.PERMISSION_GRANTED) {
-//            ActivityCompat.requestPermissions(this,
-//                    new String[]{Manifest.permission.ACCESS_FINE_LOCATION,},
-//                    1000);
-//        }
-//        else{
-//            locationStart();
-//            locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 100, 50, this);
-//
-//
-//        }
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("http://nitta-lab-www.is.konan-u.ac.jp/amaryllis/")
+                .addConverterFactory(JacksonConverterFactory.create())
+                .build();
+        final CategoriesRest categoryService = retrofit.create(CategoriesRest.class);
+        Call<List<Category>> call = categoryService.getcategories();
+        call.enqueue(new Callback<List<Category>>() {
+            @Override
+            public void onResponse(Call<List<Category>> call, Response<List<Category>> response) {
+                List<Category> clist = response.body();
+                HashMap<String ,Category> categories = new HashMap<>();
+                for (Category c : clist){
+                    categories.put(c.getcId(),c);
+                }
+                MainActivity.this.categories = categories;
+            }
+
+            @Override
+            public void onFailure(Call<List<Category>> call, Throwable t) {
+
+            }
+        });
+
 
         LocationManager manager = (LocationManager) getSystemService(LOCATION_SERVICE);
         if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
-            // TODO: Consider calling
-            //    ActivityCompat#requestPermissions
-            // here to request the missing permissions, and then overriding
-            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
-            //                                          int[] grantResults)
-            // to handle the case where the user grants the permission. See the documentation
-            // for ActivityCompat#requestPermissions for more details.
             return;
         }
         manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
     }
+
     private void locationStart(){
         Log.d("debug","locationStart()");
 
@@ -109,23 +121,10 @@
             Log.d("debug", "checkSelfPermission false");
             return;
         }
-
-       // locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 50, this);
-
     }
 
     // 結果の受け取り
-    /**
-     * Android Quickstart:
-     * https://developers.google.com/sheets/api/quickstart/android
-     *
-     * Respond to requests for permissions at runtime for API 23 and above.
-     * @param requestCode The request code passed in
-     *     requestPermissions(android.app.Activity, String, int, String[])
-     * @param permissions The requested permissions. Never null.
-     * @param grantResults The grant results for the corresponding permissions
-     *     which is either PERMISSION_GRANTED or PERMISSION_DENIED. Never null.
-     */
+
     @Override
     public void onRequestPermissionsResult(
             int requestCode, @NonNull String[]permissions, @NonNull int[] grantResults) {
@@ -147,19 +146,6 @@
 
     @Override
     public void onStatusChanged(String provider, int status, Bundle extras) {
-//         API 29以降非推奨
-
-//        switch (status) {
-//            case LocationProvider.AVAILABLE:
-//                Log.d("debug", "LocationProvider.AVAILABLE");
-//                break;
-//            case LocationProvider.OUT_OF_SERVICE:
-//                Log.d("debug", "LocationProvider.OUT_OF_SERVICE");
-//                break;
-//            case LocationProvider.TEMPORARILY_UNAVAILABLE:
-//                Log.d("debug", "LocationProvider.TEMPORARILY_UNAVAILABLE");
-//                break;
-//        }
 
     }
 
@@ -171,12 +157,6 @@
     }
     @Override
     public void onLocationChanged(Location location) {
-//        Amaryllis amaryllis = (Amaryllis) getApplication();
-//        String latitude = String.valueOf(location.getLatitude());
-//        String longitude = String.valueOf(location.getLongitude());
-//        amaryllis.setLatitude(latitude);
-//        amaryllis.setLongitude(longitude);
-
         Log.d(TAG, "lat:" + location.getLatitude());
         Log.d(TAG, "lon:" + location.getLongitude());
         Log.d("debug", "locationChanged" );
@@ -212,4 +192,8 @@
         android.os.Process.killProcess(android.os.Process.myPid());
     }
 
+    public Category getCategory(String cid){
+        return categories.get(cid);
+    }
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/entities/Category.java b/app/src/main/java/org/ntlab/amaryllis/client/entities/Category.java
index 3e44534..64656ed 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/entities/Category.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/entities/Category.java
@@ -9,30 +9,28 @@
      * 文字列表現された色情報
      */
     private String color;
+
+    public Category(){}
+
     public Category(String cid,String name,String color){
-        this.cid=cid;
-        this.name=name;
-        this.color=color;
+        setcId(cid);
+        setName(name);
+        setColor(color);
     }
 
     public String getcId() {
         return cid;
     }
-
     public String getName() {
         return name;
     }
     public String getColor(){
         return color;
     }
-    public void setCid(String cid) {
-        this.cid = cid;
-    }
-
+    public void setcId(String cid) { this.cid = cid; }
     public void setName(String name) {
         this.name = name;
     }
-
     public void setColor(String color) {
         this.color = color;
     }
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/entities/Voicememo.java b/app/src/main/java/org/ntlab/amaryllis/client/entities/Voicememo.java
index edaa808..42852a4 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/entities/Voicememo.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/entities/Voicememo.java
@@ -28,7 +28,7 @@
 
     public Voicememo() {}
 
-    public Voicememo(String vid, String uid, Integer time, String url, double latitude, double longitude, String title, String summary) {
+    public Voicememo(String vid, String uid, Integer time, String url, double latitude, double longitude, String title, String summary, ArrayList<String> categories) {
         Calendar upload = Calendar.getInstance();
         setVid(vid);
         setUid(uid);
@@ -39,6 +39,7 @@
         setLongitude(longitude);
         setTitle(title);
         setSummary(summary);
+        setCategory(categories);
         this.times = 0;
         this.favos = 0;
     }
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/fragment/MapsFragment.java b/app/src/main/java/org/ntlab/amaryllis/client/fragment/MapsFragment.java
index c55f77b..6e11875 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/fragment/MapsFragment.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/fragment/MapsFragment.java
@@ -303,18 +303,18 @@
                 String data = Base64.encodeToString(byteData, 0,byteData.length, Base64.DEFAULT);
 
 
-                Call<Voicememo> call = voicememosService.postVoicememos(amaryllis.getUid(),amaryllis.getToken(),10,data,35,135,"untitled","");
-                call.enqueue(new Callback<Voicememo>() {
-                     @Override
-                     public void onResponse(Call<Voicememo> call, Response<Voicememo> response) {
-                        Voicememo voicememo = response.body();
-                     }
-
-                    @Override
-                    public void onFailure(Call<Voicememo> call, Throwable t) {
-
-                    }
-                });
+//                Call<Voicememo> call = voicememosService.postVoicememos(amaryllis.getUid(),amaryllis.getToken(),10,data,35,135,"untitled","");
+//                call.enqueue(new Callback<Voicememo>() {
+//                     @Override
+//                     public void onResponse(Call<Voicememo> call, Response<Voicememo> response) {
+//                        Voicememo voicememo = response.body();
+//                     }
+//
+//                    @Override
+//                    public void onFailure(Call<Voicememo> call, Throwable t) {
+//
+//                    }
+//                });
                 StartChange = 1;
                 R_Stoping.setAlpha(1.0f);
                 R_Playing.setAlpha(0.0f);
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/resources/CategoriesRest.java b/app/src/main/java/org/ntlab/amaryllis/client/resources/CategoriesRest.java
index 5f26a14..debc564 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/resources/CategoriesRest.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/resources/CategoriesRest.java
@@ -3,6 +3,7 @@
 import org.ntlab.amaryllis.client.entities.Category;
 
 import java.util.ArrayList;
+import java.util.List;
 
 import retrofit2.Call;
 import retrofit2.http.GET;
@@ -12,7 +13,7 @@
 public interface CategoriesRest {
     //すべてのcidを取得
     @GET("categories")
-    Call<ArrayList<Category>> getcategories();
+    Call<List<Category>> getcategories();
 
     //指定したカテゴリを取得
     @GET("categories/{cid}")
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/resources/VoicememosRest.java b/app/src/main/java/org/ntlab/amaryllis/client/resources/VoicememosRest.java
index 9306f4f..eae7187 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/resources/VoicememosRest.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/resources/VoicememosRest.java
@@ -41,7 +41,8 @@
             @Field("latitude") double latitude,
             @Field("longitude") double longitude,
             @Field("title") String title,
-            @Field("summary") String summary
+            @Field("summary") String summary,
+            @Field("categories") List<String> categories
     );
 
     //指定された投稿の情報を取得
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/PlayListManager.java b/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/PlayListManager.java
index b7fdd22..e5e0edd 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/PlayListManager.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/PlayListManager.java
@@ -1,18 +1,48 @@
 package org.ntlab.amaryllis.client.voiceservice;
 
-import android.location.Location;
-
 import java.util.ArrayList;
 
-public class PlayListManager {
-
-    public void addVoiceMemos(ArrayList<VoiceMemo> voicememo, Location location){
+public class PlayListManager{
+    int index = 0;
+    ArrayList<VoiceMemo> playlist = new ArrayList<>();
+    ArrayList<VoiceMemo> unplayedlist = new ArrayList<>();
+    //範囲内にある全てのvoicememoのリストを作成
+    public void addVoiceMemos(ArrayList<VoiceMemo> voicememos){
+        for(int i = 0;i < voicememos.size(); i++) {
+            boolean exist = false;
+            for(int j = 0;j < playlist.size(); j++){
+                if(voicememos.get(i).getVid().equals(playlist.get(j).getVid()))
+                  exist = true;
+            }
+            if(exist = false)
+              playlist.add(voicememos.get(i));
+        }
     }
 
-    public void getPlayList(){
+    //範囲内にある全てのvoicememoのリスト
+    public ArrayList<VoiceMemo> getPlayList(){
+        return playlist;
+    }
+    //まだ聞いていないvoicememoのリスト
+    public ArrayList<VoiceMemo> getUnplayedList(){
+        //毎回リストを返すのか？
+        unplayedlist.clear();
+        for(int i = index; i < playlist.size(); i++){
+            unplayedlist.add(playlist.get(i));
+        }
+        return unplayedlist;
     }
 
-    public void getUnplayed(){
+    //次のvoicememoに移動する
+    public void next() {
+        index++;
     }
 
+    public void setIndex(){
+        this.index = index;
+    }
+
+    public int getIndex() {
+        return index;
+    }
 }
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/VoiceMemo.java b/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/VoiceMemo.java
index 3bd8f4c..115bd7f 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/VoiceMemo.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/voiceservice/VoiceMemo.java
@@ -1,4 +1,115 @@
 package org.ntlab.amaryllis.client.voiceservice;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
+import org.w3c.dom.Comment;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.HashMap;
+
 public class VoiceMemo {
+
+        private String vid;
+        private String uid;
+        private Calendar upload;
+        private Integer time;
+        private String data;
+        private double latitude;
+        private double longitude;
+        private String title;
+        private String summary;
+        private Integer times;
+        @JsonIgnore
+        private ArrayList<String> favolist;
+        private Integer favos;
+        private ArrayList<String> categories;
+        private HashMap<String, Comment> commentMap = new HashMap<>();
+        public VoiceMemo(String vid, String uid, Integer time, String url, double latitude, double longitude, String title, String summary) {
+            Calendar upload = Calendar.getInstance();
+            setVid(vid);
+            setUid(uid);
+            setUpload(upload);
+            setTime(time);
+            setData(url);
+            setLatitude(latitude);
+            setLongitude(longitude);
+            setTitle(title);
+            setSummary(summary);
+            this.times = 0;
+            this.favos = 0;
+        }
+
+
+
+
+        public String getVid() {
+            return vid;
+        }
+        private void setVid(String vid) {
+            this.vid = vid;
+        }
+        private String getUid() {
+            return uid;
+        }
+        private void setUid(String uid) {
+            this.uid = uid;
+        }
+        public Calendar getUpload() {
+            return upload;
+        }
+        private void setUpload(Calendar upload) {
+            this.upload = upload;
+        }
+        public Integer getTime() {
+            return time;
+        }
+        private void setTime(Integer time) {
+            this.time = time;
+        }
+        public String getData() {
+            return data;
+        }
+        private void setData(String url) {
+            this.data = url;
+        }
+        public double getLatitude() {
+            return latitude;
+        }
+        private void setLatitude(double latitude) {
+            this.latitude = latitude;
+        }
+        public double getLongitude() {
+            return longitude;
+        }
+        private void setLongitude(double longitude) {
+            this.longitude = longitude;
+        }
+        public String getTitle() {
+            return title;
+        }
+        public void setTitle(String title) {
+            this.title = title;
+        }
+        public String getSummary() {
+            return summary;
+        }
+        public void setSummary(String summary) {
+            this.summary = summary;
+        }
+        public Integer getTimes() {
+            return times;
+        }
+        public void addTimes() {//？どのタイミングで加算するか
+            times++;
+        }
+        public ArrayList<String> getFavolist(){ return favolist; }
+        public boolean checkFavo(String uid){
+            for (String a : favolist) {
+                if (a.equals(vid)) {
+                    return true;
+                }
+            }
+            return false;
+        }
 }