diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
deleted file mode 100644
index 30aa626..0000000
--- a/.idea/codeStyles/Project.xml
+++ /dev/null
@@ -1,29 +0,0 @@
-<component name="ProjectCodeStyleConfiguration">
-  <code_scheme name="Project" version="173">
-    <Objective-C-extensions>
-      <file>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
-      </file>
-      <class>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
-      </class>
-      <extensions>
-        <pair source="cpp" header="h" fileNamingConvention="NONE" />
-        <pair source="c" header="h" fileNamingConvention="NONE" />
-      </extensions>
-    </Objective-C-extensions>
-  </code_scheme>
-</component>
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 8328a06..22be3e7 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,7 +9,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".AddMemberActivity"></activity>
+        <activity android:name=".views.DisplayQRActivity"></activity>
+        <activity android:name=".views.AddMemberActivity" />
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
diff --git a/app/src/main/java/com/example/cosmosclient/views/AddMemberActivity.java b/app/src/main/java/com/example/cosmosclient/views/AddMemberActivity.java
index c1b8f1d..d5682dc 100644
--- a/app/src/main/java/com/example/cosmosclient/views/AddMemberActivity.java
+++ b/app/src/main/java/com/example/cosmosclient/views/AddMemberActivity.java
@@ -1,10 +1,14 @@
 package com.example.cosmosclient.views;
 
 import android.content.Intent;
+import android.graphics.BitmapFactory;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
 
 import com.example.cosmosclient.R;
 
@@ -14,9 +18,13 @@
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_add_member);
-
-        //ここからQRからメンバー追加の画面遷移処理画面を記述
+        //各種idを取得
         Button qrButton = findViewById(R.id.addQR);
+        Button idButton = findViewById(R.id.addID);
+        Button mailButton = findViewById(R.id.addMail);
+        TextView groupText=findViewById(R.id.groupName);
+
+        //QRからメンバー追加の画面遷移処理画面を記述
         qrButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -24,8 +32,7 @@
                 startActivity(intent);
             }
         });
-        //ここからIDからメンバー追加の画面遷移処理画面を記述
-        Button idButton = findViewById(R.id.addID);
+        //IDからメンバー追加の画面遷移処理画面を記述
         idButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -33,8 +40,7 @@
                 startActivity(intent);
             }
         });
-        //ここからMailからメンバー追加の画面遷移処理画面を記述
-        Button mailButton = findViewById(R.id.addMail);
+        //Mailからメンバー追加の画面遷移処理画面を記述
         mailButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
diff --git a/app/src/main/res/drawable/camera_image.png b/app/src/main/res/drawable/camera_image.png
new file mode 100644
index 0000000..e5cc4cc
--- /dev/null
+++ b/app/src/main/res/drawable/camera_image.png
Binary files differ
diff --git a/app/src/main/res/drawable/group_image.png b/app/src/main/res/drawable/group_image.png
new file mode 100644
index 0000000..2d02bdc
--- /dev/null
+++ b/app/src/main/res/drawable/group_image.png
Binary files differ
diff --git a/app/src/main/res/drawable/mail_image.png b/app/src/main/res/drawable/mail_image.png
new file mode 100644
index 0000000..522ef7d
--- /dev/null
+++ b/app/src/main/res/drawable/mail_image.png
Binary files differ
diff --git a/app/src/main/res/drawable/search_image.png b/app/src/main/res/drawable/search_image.png
new file mode 100644
index 0000000..3ae2a32
--- /dev/null
+++ b/app/src/main/res/drawable/search_image.png
Binary files differ
diff --git a/app/src/main/res/layout/activity_add_member.xml b/app/src/main/res/layout/activity_add_member.xml
index fb91b77..1660f02 100644
--- a/app/src/main/res/layout/activity_add_member.xml
+++ b/app/src/main/res/layout/activity_add_member.xml
@@ -5,85 +5,64 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".views.AddMemberActivity">
-    <LinearLayout
-        android:id="@+id/linearLayout"
+
+    <TextView
+    android:id="@+id/viewName"
+    android:layout_width="match_parent"
+    android:layout_height="42dp"
+    android:layout_weight="1"
+    android:background="#a0d8ef"
+    android:gravity="center"
+    android:text="メンバー追加"
+    app:layout_constraintTop_toTopOf="parent"
+    tools:layout_editor_absoluteX="10dp" />
+
+    <TextView
+        android:id="@+id/groupName"
         android:layout_width="match_parent"
-        android:layout_height="61dp"
-        android:background="#a0d8ef"
-        android:orientation="horizontal">
+        android:layout_height="75dp"
+        android:background="#e6eae3"
+        android:gravity="center"
+        android:text="家族用　グループ"
+        android:textSize="24sp"
+        android:drawableLeft="@drawable/group_image"
+        app:layout_constraintTop_toBottomOf="@+id/viewName"
+        tools:layout_editor_absoluteX="0dp" />
 
-        <Button
-            android:id="@+id/backButton"
-            android:layout_width="10dp"
-            android:layout_height="61dp"
-            android:layout_weight="1"
-            android:background="#a0d8ef"
-            android:text="↩"
-            android:textSize="36sp" />
+    <Button
+        android:id="@+id/addQR"
+        android:layout_width="match_parent"
+        android:layout_height="144dp"
+        android:background="@drawable/white"
+        android:gravity="center"
+        android:text="QRコードで追加"
+        android:textSize="24sp"
+        android:drawableLeft="@drawable/camera_image"
+        app:layout_constraintTop_toBottomOf="@+id/groupName"
+        tools:layout_editor_absoluteX="0dp" />
 
-        <TextView
-            android:id="@+id/viewName"
-            android:layout_width="wrap_content"
-            android:layout_height="match_parent"
-            android:layout_weight="1"
-            android:gravity="center"
-            android:text="メンバー追加" />
+    <Button
+        android:id="@+id/addID"
+        android:layout_width="match_parent"
+        android:layout_height="144dp"
+        android:background="@drawable/white"
+        android:gravity="center"
+        android:text="IDで追加"
+        android:textSize="24sp"
+        android:drawableLeft="@drawable/search_image"
+        app:layout_constraintTop_toBottomOf="@+id/addQR"
+        tools:layout_editor_absoluteX="0dp" />
 
-        <TextView
-            android:id="@+id/textView8"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_weight="1" />
-    </LinearLayout>
-
-    <LinearLayout
-        android:id="@+id/linearLayout2"
-        android:layout_width="412dp"
-        android:layout_height="683dp"
-        android:orientation="vertical"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/linearLayout">
-
-        <TextView
-            android:id="@+id/groupName"
-            android:layout_width="match_parent"
-            android:layout_height="75dp"
-            android:background="#e6eae3"
-            android:gravity="center"
-            android:text="家族用　グループ"
-            android:textSize="24sp" />
-
-        <Button
-            android:id="@+id/addQR"
-            android:layout_width="match_parent"
-            android:layout_height="144dp"
-            android:background="@drawable/white"
-            android:gravity="center"
-            android:text="QRコードで追加"
-
-            android:textSize="24sp" />
-
-        <Button
-            android:id="@+id/addID"
-            android:layout_width="match_parent"
-            android:layout_height="144dp"
-            android:background="@drawable/white"
-            android:gravity="center"
-            android:text="IDで追加"
-            android:textSize="24sp" />
-
-        <Button
-            android:id="@+id/addMail"
-            android:layout_width="match_parent"
-            android:layout_height="144dp"
-            android:background="@drawable/white"
-            android:gravity="center"
-            android:text="メールで招待"
-            android:textSize="24sp" />
-
-
-    </LinearLayout>
+    <Button
+        android:id="@+id/addMail"
+        android:layout_width="match_parent"
+        android:layout_height="144dp"
+        android:background="@drawable/white"
+        android:gravity="center"
+        android:text="メールで招待"
+        android:textSize="24sp"
+        android:drawableLeft="@drawable/mail_image"
+        app:layout_constraintTop_toBottomOf="@+id/addID"
+        tools:layout_editor_absoluteX="0dp" />
 
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_display_qr.xml b/app/src/main/res/layout/activity_display_qr.xml
index 58032b5..7f1bf96 100644
--- a/app/src/main/res/layout/activity_display_qr.xml
+++ b/app/src/main/res/layout/activity_display_qr.xml
@@ -6,36 +6,28 @@
     android:layout_height="match_parent"
     tools:context=".views.DisplayQRActivity">
 
-    <LinearLayout
-        android:id="@+id/linearLayout"
+    <TextView
+        android:id="@+id/viewName"
         android:layout_width="match_parent"
-        android:layout_height="61dp"
+        android:layout_height="42dp"
+        android:layout_weight="1"
         android:background="#a0d8ef"
-        android:orientation="horizontal">
+        android:gravity="center"
+        android:text="メンバー追加"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:layout_editor_absoluteX="10dp" />
 
-        <Button
-            android:id="@+id/backButton"
-            android:layout_width="10dp"
-            android:layout_height="61dp"
-            android:layout_weight="1"
-            android:background="#a0d8ef"
-            android:text="↩"
-            android:textSize="36sp" />
-
-        <TextView
-            android:id="@+id/viewName"
-            android:layout_width="wrap_content"
-            android:layout_height="match_parent"
-            android:layout_weight="1"
-            android:gravity="center"
-            android:text="メンバー追加" />
-
-        <TextView
-            android:id="@+id/textView8"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_weight="1" />
-    </LinearLayout>
+    <TextView
+        android:id="@+id/groupName"
+        android:layout_width="match_parent"
+        android:layout_height="75dp"
+        android:background="#e6eae3"
+        android:drawableLeft="@drawable/group_image"
+        android:gravity="center"
+        android:text="家族用　グループ"
+        android:textSize="24sp"
+        app:layout_constraintTop_toBottomOf="@+id/viewName"
+        tools:layout_editor_absoluteX="16dp" />
 
     <ImageView
         android:id="@+id/imageView"
@@ -49,25 +41,11 @@
         android:layout_marginBottom="8dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="1.0"
+        app:layout_constraintHorizontal_bias="0.5"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.523"
+        app:layout_constraintTop_toBottomOf="@+id/groupName"
+        app:layout_constraintVertical_bias="0.501"
         app:srcCompat="@drawable/qr_code_ex" />
 
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="410dp"
-        android:layout_height="75dp"
-        android:background="#e6eae3"
-        android:gravity="center"
-        android:text="家族用　グループ"
-        android:textSize="24sp"
-        android:layout_marginBottom="8dp"
-        app:layout_constraintBottom_toTopOf="@+id/imageView"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/linearLayout"
-        app:layout_constraintVertical_bias="0.0" />
+
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index e11a5b3..fafc1b9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@
         
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.2'
+        classpath 'com.android.tools.build:gradle:3.4.0'
         
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 18955ab..20ad0eb 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Apr 26 15:58:11 JST 2019
+#Thu May 09 18:02:09 JST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip