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 32e21ef..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) {
@@ -56,6 +64,29 @@
         NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
         NavigationUI.setupWithNavController(navView, navController);
 
+        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) {
@@ -63,6 +94,7 @@
         }
         manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
     }
+
     private void locationStart(){
         Log.d("debug","locationStart()");
 
@@ -160,4 +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