diff --git a/app/src/main/java/com/example/nemophila/MyPageEditorActivity.java b/app/src/main/java/com/example/nemophila/MyPageEditorActivity.java
index cf6713f..093b82e 100644
--- a/app/src/main/java/com/example/nemophila/MyPageEditorActivity.java
+++ b/app/src/main/java/com/example/nemophila/MyPageEditorActivity.java
@@ -102,7 +102,6 @@
         changeDefaultButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                icon = null;
                 iconUrlString = "http://nitta-lab-www.is.konan-u.ac.jp/nemophila-data/test01.jpg";
                 setIcon(iconButton);
                 iconFlag = true;
@@ -232,6 +231,10 @@
                 InputStream is = con.getInputStream();
 
                 Bitmap bitmap = BitmapFactory.decodeStream(is);
+                ByteArrayOutputStream stream = new ByteArrayOutputStream();
+                bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
+                byte[] byteArray = stream.toByteArray();
+                icon = Base64.getEncoder().encodeToString(byteArray);
                 handler.post(() -> iv.setImageBitmap(bitmap));
                 is.close();
                 con.disconnect();
diff --git a/app/src/main/java/com/example/nemophila/Nemophila.java b/app/src/main/java/com/example/nemophila/Nemophila.java
index 79c017d..efbf6eb 100644
--- a/app/src/main/java/com/example/nemophila/Nemophila.java
+++ b/app/src/main/java/com/example/nemophila/Nemophila.java
@@ -2,6 +2,7 @@
 
 import android.app.Application;
 import android.content.SharedPreferences;
+import android.graphics.Bitmap;
 
 import com.example.nemophila.entities.Account;
 import com.example.nemophila.entities.AccountNameJson;
@@ -18,6 +19,7 @@
     private String name;
     private String uid;
     private String token;
+    private Bitmap icon;
     private Collection<AccountNameJson> friends;
 
     //ショップのデータ
@@ -58,6 +60,9 @@
         }
         return token;
     }
+    public Bitmap getIcon() {
+        return icon;
+    }
     public Collection<AccountNameJson> getFriends() {
         return friends;
     }
@@ -136,6 +141,9 @@
         this.token = token;
         editor.commit();
     }
+    public void setIcon(Bitmap icon) {
+        this.icon = icon;
+    }
     public void setFriends(Collection<AccountNameJson> friends) {
         this.friends = friends;
     }
diff --git a/app/src/main/java/com/example/nemophila/PostActivity.java b/app/src/main/java/com/example/nemophila/PostActivity.java
index fbf2ff5..36b429e 100644
--- a/app/src/main/java/com/example/nemophila/PostActivity.java
+++ b/app/src/main/java/com/example/nemophila/PostActivity.java
@@ -195,7 +195,7 @@
         postImages[1] = findViewById(R.id.imageView2);
         postImages[2] = findViewById(R.id.imageView3);
 
-        Button selectPictureButton = (Button)findViewById(R.id.selectpicturebutton);
+        ImageButton selectPictureButton = (ImageButton) findViewById(R.id.selectpicturebutton);
         selectPictureButton.setOnClickListener(new View.OnClickListener(){
             public void onClick(View v) {
                 if (uriLists.size() < 3) {
diff --git a/app/src/main/res/drawable/ic_baseline_camera_alt_24.xml b/app/src/main/res/drawable/ic_baseline_camera_alt_24.xml
new file mode 100644
index 0000000..9141101
--- /dev/null
+++ b/app/src/main/res/drawable/ic_baseline_camera_alt_24.xml
@@ -0,0 +1,6 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M12,12m-3.2,0a3.2,3.2 0,1 1,6.4 0a3.2,3.2 0,1 1,-6.4 0"/>
+    <path android:fillColor="@android:color/white" android:pathData="M9,2L7.17,4L4,4c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,6c0,-1.1 -0.9,-2 -2,-2h-3.17L15,2L9,2zM12,17c-2.76,0 -5,-2.24 -5,-5s2.24,-5 5,-5 5,2.24 5,5 -2.24,5 -5,5z"/>
+</vector>
diff --git a/app/src/main/res/layout/activity_post.xml b/app/src/main/res/layout/activity_post.xml
index f829316..9f4a708 100644
--- a/app/src/main/res/layout/activity_post.xml
+++ b/app/src/main/res/layout/activity_post.xml
@@ -113,56 +113,58 @@
       android:textSize="20sp"
       app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
-      app:layout_constraintHorizontal_bias="0.9"
-      app:layout_constraintStart_toStartOf="parent"
-      app:layout_constraintTop_toTopOf="parent"
-      app:layout_constraintVertical_bias="0.895" />
+      app:layout_constraintHorizontal_bias="0.625"
+      app:layout_constraintStart_toEndOf="@+id/selectpicturebutton"
+      app:layout_constraintTop_toBottomOf="@+id/imageView3"
+      app:layout_constraintVertical_bias="0.266" />
 
-  <Button
+  <ImageButton
       android:id="@+id/selectpicturebutton"
-      android:layout_width="wrap_content"
-      android:layout_height="wrap_content"
+      android:layout_width="83dp"
+      android:layout_height="56dp"
       android:backgroundTint="#00BCD4"
-      android:text="+"
+      android:src="@drawable/ic_baseline_camera_alt_24"
       android:textSize="20sp"
       app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
-      app:layout_constraintHorizontal_bias="0.498"
       app:layout_constraintStart_toStartOf="parent"
       app:layout_constraintTop_toTopOf="parent"
-      app:layout_constraintVertical_bias="0.88" />
-
-  <ImageView
-      android:id="@+id/imageView1"
-      android:layout_width="100dp"
-      android:layout_height="100dp"
-      app:layout_constraintBottom_toTopOf="@+id/selectpicturebutton"
-      app:layout_constraintEnd_toEndOf="parent"
-      app:layout_constraintHorizontal_bias="0.071"
-      app:layout_constraintStart_toStartOf="parent"
-      app:layout_constraintTop_toBottomOf="@+id/inputComment"
-      tools:srcCompat="@tools:sample/avatars" />
+      app:layout_constraintVertical_bias="0.896" />
 
   <ImageView
       android:id="@+id/imageView2"
       android:layout_width="100dp"
       android:layout_height="100dp"
       app:layout_constraintBottom_toTopOf="@+id/selectpicturebutton"
+      app:layout_constraintEnd_toStartOf="@+id/imageView3"
+      app:layout_constraintHorizontal_bias="0.515"
+      app:layout_constraintStart_toEndOf="@+id/imageView1"
+      app:layout_constraintTop_toBottomOf="@+id/inputComment"
+      app:layout_constraintVertical_bias="0.593"
+      tools:srcCompat="@tools:sample/avatars" />
+
+  <ImageView
+      android:id="@+id/imageView1"
+      android:layout_width="100dp"
+      android:layout_height="100dp"
+      app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
-      app:layout_constraintHorizontal_bias="0.5"
+      app:layout_constraintHorizontal_bias="0.067"
       app:layout_constraintStart_toStartOf="parent"
       app:layout_constraintTop_toBottomOf="@+id/inputComment"
+      app:layout_constraintVertical_bias="0.189"
       tools:srcCompat="@tools:sample/avatars" />
 
   <ImageView
       android:id="@+id/imageView3"
       android:layout_width="100dp"
       android:layout_height="100dp"
-      app:layout_constraintBottom_toTopOf="@+id/postButton"
+      app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
-      app:layout_constraintHorizontal_bias="0.924"
+      app:layout_constraintHorizontal_bias="0.922"
       app:layout_constraintStart_toStartOf="parent"
       app:layout_constraintTop_toBottomOf="@+id/inputComment"
+      app:layout_constraintVertical_bias="0.189"
       tools:srcCompat="@tools:sample/avatars" />
 
   <androidx.constraintlayout.widget.Group