diff --git a/.idea/dictionaries/student.xml b/.idea/dictionaries/student.xml
new file mode 100644
index 0000000..ecdd4ed
--- /dev/null
+++ b/.idea/dictionaries/student.xml
@@ -0,0 +1,3 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="student" />
+</component>
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 526b4c2..1248bb2 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -7,6 +7,8 @@
         <option name="testRunner" value="GRADLE" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleHome" value="$PROJECT_DIR$/../../../../Program Files/gradle-5.4.1-all/gradle-5.4.1" />
+        <option name="gradleJvm" value="11" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..691ca64
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,5 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0" is_locked="false">
+    <option name="myName" value="Project Default" />
+  </profile>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index a665285..049e2a8 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -5,6 +5,11 @@
       <map>
         <entry key="..\:/Users/Nitta/AndroidStudioProjects/IrisClient/app/src/main/res/layout/activity_main.xml" value="0.20969202898550723" />
         <entry key="..\:/Users/Nitta/StudioProjects/IrisClient/app/src/main/res/layout/activity_main.xml" value="0.266304347826087" />
+        <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_main.xml" value="0.25" />
+        <entry key="..\:/Users/student/Desktop/IrisClient/app/src/main/res/layout-land/activity_main.xml" value="0.1574074074074074" />
+        <entry key="..\:/Users/student/Desktop/IrisClient/app/src/main/res/layout/activity_main.xml" value="0.1859375" />
+        <entry key="..\:/Users/student/Desktop/IrisClient/app/src/main/res/layout/activity_member_room.xml" value="0.25" />
+        <entry key="..\:/Users/student/Desktop/IrisClient/app/src/main/res/layout/fragment_first.xml" value="0.15433946130825138" />
         <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout-land/activity_main.xml" value="0.31040564373897706" />
         <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout-sw600dp/activity_main.xml" value="0.2189207650273224" />
         <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_create_room.xml" value="0.29030797101449274" />
diff --git a/app/build.gradle b/app/build.gradle
index f17444c..4909d44 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -25,6 +25,9 @@
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
+    buildFeatures {
+        viewBinding true
+    }
 }
 
 dependencies {
@@ -32,7 +35,24 @@
     implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation 'com.google.android.material:material:1.4.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.1'
+    implementation 'androidx.navigation:navigation-fragment:2.3.5'
+    implementation 'androidx.navigation:navigation-ui:2.3.5'
+    implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.3.1'
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.1'
+    implementation 'androidx.annotation:annotation:1.2.0'
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
+    implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
+    implementation "com.squareup.retrofit2:retrofit:2.5.0"
+    implementation 'com.squareup.retrofit2:converter-jackson:2.5.0'
+    implementation 'com.squareup.retrofit2:converter-scalars:2.1.0'
+    implementation 'com.github.bumptech.glide:glide:4.10.0'
+    annotationProcessor 'com.github.bumptech.glide:compiler:4.10.0'
+    implementation 'com.google.android.material:material:1.1.0-alpha08'
+    implementation 'androidx.viewpager2:viewpager2:1.0.0-beta02'
 }
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 27d2953..e3c386a 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -10,18 +10,23 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.IrisClient">
         <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
             android:name=".CreateRoomActivity"
             android:screenOrientation="landscape"
             android:exported="true" >
-        <intent-filter>
-            <action android:name="android.intent.action.MAIN" />
-            <category android:name="android.intent.category.LAUNCHER" />
-        </intent-filter>
         </activity>
         <activity
-            android:name=".MainActivity"
-            android:exported="true">
-
+            android:name=".MemberRoomActivity"
+            android:screenOrientation="landscape"
+            android:exported="true" >
         </activity>
     </application>
 
diff --git a/app/src/main/java/org/ntlab/irisclient/MainActivity.java b/app/src/main/java/org/ntlab/irisclient/MainActivity.java
index 65ba731..9a29cff 100644
--- a/app/src/main/java/org/ntlab/irisclient/MainActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/MainActivity.java
@@ -1,5 +1,6 @@
 package org.ntlab.irisclient;
 
+import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
 
 import android.os.Bundle;
@@ -10,5 +11,7 @@
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
new file mode 100644
index 0000000..dcefe12
--- /dev/null
+++ b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
@@ -0,0 +1,82 @@
+package org.ntlab.irisclient;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import java.lang.reflect.Member;
+import java.util.ArrayList;
+
+public class MemberRoomActivity extends AppCompatActivity {
+
+    //フィールド
+    String r = "部屋IDがここに表示されるはずです";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_member_room);
+
+        //--------------------------------------------------------------------------
+        //各ボタン処理
+        ArrayList<String> members = new ArrayList<>();
+        Button redMasterButton = (Button) findViewById(R.id.beRedMaster);
+        Button redSpyButton = (Button) findViewById(R.id.beRedSpy);
+        Button blueMasterButton = (Button) findViewById(R.id.beBlueMaster);
+        Button blueSpyButton = (Button) findViewById(R.id.beBlueSpy);
+
+
+        redMasterButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                r = "赤マスターボタン検知しました";
+                TextView RoomIdText = findViewById(R.id.roomID);
+                RoomIdText.setText(r);
+            }
+        });
+
+        blueMasterButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                r = "青マスターボタン検知しました";
+                TextView RoomIdText = findViewById(R.id.roomID);
+                RoomIdText.setText(r);
+            }
+        });
+
+        //--------------------------------------------------------------------------
+        //メンバー表示
+
+        members.add("1さん");
+        members.add("2");
+
+        ArrayAdapter adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, members);
+
+        ListView listView = (ListView)findViewById(R.id.MembersList);
+        listView.setAdapter(adapter);
+
+        //---------------------------------------------------------------
+        //settings情報
+        String s = "設定されている内容がここに表示されるはずです";
+        TextView settingsText = findViewById(R.id.settings);
+        settingsText.setText(s);
+
+        //---------------------------------------------------------------
+        //部屋ID情報
+        TextView RoomIdText = findViewById(R.id.roomID);
+        RoomIdText.setText(r);
+    }
+
+    /*private getMemberInformation(){
+
+    }*/
+
+    /*private void addMemberToMemberList(String m){
+        members.add(m);
+    }*/
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/ntlab/irisclient/OwnerRoomActivity.java b/app/src/main/java/org/ntlab/irisclient/OwnerRoomActivity.java
new file mode 100644
index 0000000..7b0fb26
--- /dev/null
+++ b/app/src/main/java/org/ntlab/irisclient/OwnerRoomActivity.java
@@ -0,0 +1,52 @@
+package org.ntlab.irisclient;
+
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+
+import java.util.Locale;
+
+public class OwnerRoomActivity extends AppCompatActivity {
+
+//    private final String[] dataset = new String[20];
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_owner_room);
+
+        //上のバーを消す
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.hide();
+        }
+
+//        RecyclerView recyclerView = findViewById(R.id.my_recycler_view);
+//
+//        // use this setting to improve performance if you know that changes
+//        // in content do not change the layout size of the RecyclerView
+//        recyclerView.setHasFixedSize(true);
+//
+//        // use a linear layout manager
+//        RecyclerView.LayoutManager rLayoutManager = new LinearLayoutManager(this);
+//
+//        recyclerView.setLayoutManager(rLayoutManager);
+//
+//        int i = 0;
+//        while (i < 10) {
+//            dataset[i] = String.format(Locale.ENGLISH, "Data_0%d", i);
+//            i++;
+//        }
+//
+//        MyAdapter adapter = new MyAdapter(dataset);
+//        recyclerView.setAdapter(adapter);
+
+
+
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/drawable/copy_icon.png b/app/src/main/res/drawable/copy_icon.png
new file mode 100644
index 0000000..efd4310
--- /dev/null
+++ b/app/src/main/res/drawable/copy_icon.png
Binary files differ
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 4fc2444..20424f1 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -6,13 +6,27 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
+    <Button
+        android:id="@+id/create_room"
+        android:layout_width="315dp"
+        android:layout_height="77dp"
+        android:text="ルームの作成"
+        android:textSize="24sp"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.26" />
 
+    <Button
+        android:id="@+id/entry_room"
+        android:layout_width="315dp"
+        android:layout_height="77dp"
+        android:text="ルームに入る"
+        android:textSize="24sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/create_room"
+        app:layout_constraintVertical_bias="0.513" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_member_room.xml b/app/src/main/res/layout/activity_member_room.xml
new file mode 100644
index 0000000..8b9de8c
--- /dev/null
+++ b/app/src/main/res/layout/activity_member_room.xml
@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:backgroundTint="#804747"
+    tools:context=".MemberRoomActivity">
+
+    <Button
+        android:id="@+id/beBlueMaster"
+        android:layout_width="95dp"
+        android:layout_height="82dp"
+        android:backgroundTint="#2020AC"
+        android:text="スパイマスターとして参加"
+        app:layout_constraintBottom_toTopOf="@+id/beBlueSpy"
+        app:layout_constraintEnd_toEndOf="@+id/beBlueSpy"
+        app:layout_constraintStart_toStartOf="@+id/beBlueSpy" />
+
+    <Button
+        android:id="@+id/beRedMaster"
+        android:layout_width="95dp"
+        android:layout_height="82dp"
+        android:layout_marginTop="16dp"
+        android:backgroundTint="#AC2020"
+        android:text="スパイマスターとして参加"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.624"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/beRedSpy"
+        android:layout_width="95dp"
+        android:layout_height="82dp"
+        android:backgroundTint="#AC2020"
+        android:text="諜報員として参加"
+        app:layout_constraintEnd_toEndOf="@+id/beRedMaster"
+        app:layout_constraintStart_toStartOf="@+id/beRedMaster"
+        app:layout_constraintTop_toBottomOf="@+id/beRedMaster" />
+
+    <Button
+        android:id="@+id/beBlueSpy"
+        android:layout_width="95dp"
+        android:layout_height="82dp"
+        android:layout_marginBottom="16dp"
+        android:backgroundTint="#2020AC"
+        android:text="諜報員として参加"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.624"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <ListView
+        android:id="@+id/MembersList"
+        android:layout_width="295dp"
+        android:layout_height="370dp"
+        android:layout_marginEnd="24dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@+id/beBlueMaster"
+        app:layout_constraintHorizontal_bias="0.961"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.609" />
+
+    <TextView
+        android:id="@+id/roomID"
+        android:layout_width="165dp"
+        android:layout_height="38dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="16dp"
+        android:text="部屋："
+        app:layout_constraintEnd_toStartOf="@+id/copyButton"
+        app:layout_constraintStart_toEndOf="@+id/beRedMaster"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <ImageButton
+        android:id="@+id/copyButton"
+        android:layout_width="39dp"
+        android:layout_height="39dp"
+        android:layout_marginTop="16dp"
+        android:layout_marginEnd="8dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:srcCompat="@drawable/copy_icon" />
+
+    <TextView
+        android:id="@+id/settings"
+        android:layout_width="202dp"
+        android:layout_height="315dp"
+        android:layout_marginTop="24dp"
+        android:layout_marginEnd="16dp"
+        android:text="TextView"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/roomID"
+        app:layout_constraintVertical_bias="0.0" />
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_owner_room.xml b/app/src/main/res/layout/activity_owner_room.xml
new file mode 100644
index 0000000..3d8d964
--- /dev/null
+++ b/app/src/main/res/layout/activity_owner_room.xml
@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".OwnerRoomActivity">
+
+    <ImageView
+        android:id="@+id/imageView3"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.333"
+        app:layout_constraintStart_toEndOf="@+id/textView"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.042"
+        app:srcCompat="@android:drawable/btn_star_big_on" />
+
+    <Button
+        android:id="@+id/red_spy"
+        android:layout_width="150dp"
+        android:layout_height="80dp"
+        android:backgroundTint="#FF0000"
+        android:text="スパイマスターとして参加する"
+        android:textColor="#FFFFFF"
+        android:visibility="visible"
+        app:layout_constraintBottom_toTopOf="@+id/red_agent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.64"
+        app:strokeColor="#FA2323"
+        tools:visibility="visible" />
+
+    <Button
+        android:id="@+id/red_agent"
+        android:layout_width="150dp"
+        android:layout_height="80dp"
+        android:layout_marginBottom="32dp"
+        android:backgroundTint="#FF0000"
+        android:text="諜報員として参加する"
+        app:layout_constraintBottom_toTopOf="@+id/blue_spy"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.502"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/blue_spy"
+        android:layout_width="150dp"
+        android:layout_height="80dp"
+        android:backgroundTint="#0000FF"
+        android:text="スパイマスターとして参加する"
+        app:layout_constraintBottom_toTopOf="@+id/blue_agent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.501"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/blue_agent"
+        android:layout_width="150dp"
+        android:layout_height="80dp"
+        android:layout_marginBottom="16dp"
+        android:backgroundTint="#0000FF"
+        android:text="諜報員として参加する"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.502"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/random"
+        android:layout_width="110dp"
+        android:layout_height="50dp"
+        android:backgroundTint="#7C7C7C"
+        android:text="ランダム"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@+id/start"
+        app:layout_constraintHorizontal_bias="0.966"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.933" />
+
+    <Button
+        android:id="@+id/start"
+        android:layout_width="110dp"
+        android:layout_height="50dp"
+        android:backgroundTint="#7A7A7A"
+        android:text="ゲーム開始"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.974"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.933" />
+
+    <ImageView
+        android:id="@+id/imageView2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.038"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.052"
+        app:srcCompat="@android:drawable/btn_star_big_on" />
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="部屋： 123456"
+        android:textSize="24sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.865"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.042" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/recycler_view_item.xml b/app/src/main/res/layout/recycler_view_item.xml
new file mode 100644
index 0000000..87ae671
--- /dev/null
+++ b/app/src/main/res/layout/recycler_view_item.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+  <ImageView
+      android:id="@+id/imageView2"
+      android:layout_width="50dp"
+      android:layout_height="50dp"
+      tools:src="@tools:sample/avatars"
+      app:layout_constraintStart_toStartOf="parent"
+      android:layout_marginStart="8dp"
+      app:layout_constraintTop_toTopOf="parent"
+      android:layout_marginTop="8dp" />
+
+  <TextView
+      android:id="@+id/textView"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      tools:text="@tools:sample/full_names"
+      android:textSize="20sp"
+      android:textColor="@android:color/black"
+      app:layout_constraintTop_toTopOf="@+id/imageView2"
+      app:layout_constraintStart_toEndOf="@+id/imageView2"
+      android:layout_marginStart="8dp"
+      android:layout_marginBottom="8dp"
+      app:layout_constraintBottom_toTopOf="@+id/textView2" />
+
+  <TextView
+      android:id="@+id/textView2"
+      android:layout_width="285dp"
+      android:layout_height="20dp"
+      tools:text="@tools:sample/lorem[4:10]"
+      app:layout_constraintBottom_toBottomOf="@+id/imageView2"
+      app:layout_constraintStart_toEndOf="@+id/imageView2"
+      android:layout_marginStart="8dp"
+      app:layout_constraintEnd_toEndOf="parent"
+      android:layout_marginEnd="8dp"
+      app:layout_constraintHorizontal_bias="0.050" />
+
+  <TextView
+      android:id="@+id/textView3"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      tools:text="@tools:sample/date/hhmm"
+      app:layout_constraintTop_toTopOf="@+id/imageView2"
+      app:layout_constraintEnd_toEndOf="parent"
+      android:layout_marginEnd="8dp" />
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/navigation/nav_graph.xml b/app/src/main/res/navigation/nav_graph.xml
new file mode 100644
index 0000000..279dce4
--- /dev/null
+++ b/app/src/main/res/navigation/nav_graph.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/nav_graph"
+    app:startDestination="@id/FirstFragment">
+
+    <fragment
+        android:id="@+id/FirstFragment"
+        android:name="org.ntlab.irisclient.FirstFragment"
+        android:label="@string/first_fragment_label"
+        tools:layout="@layout/fragment_first" >
+
+        <action
+            android:id="@+id/action_FirstFragment_to_SecondFragment"
+            app:destination="@id/SecondFragment" />
+    </fragment>
+    <fragment
+        android:id="@+id/SecondFragment"
+        android:name="org.ntlab.irisclient.SecondFragment"
+        android:label="@string/second_fragment_label"
+        tools:layout="@layout/fragment_second" >
+
+        <action
+            android:id="@+id/action_SecondFragment_to_FirstFragment"
+            app:destination="@id/FirstFragment" />
+    </fragment>
+</navigation>
\ No newline at end of file
diff --git a/app/src/main/res/navigation/nav_graph2.xml b/app/src/main/res/navigation/nav_graph2.xml
new file mode 100644
index 0000000..3937ccf
--- /dev/null
+++ b/app/src/main/res/navigation/nav_graph2.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/nav_graph2"
+    app:startDestination="@id/FirstFragment">
+
+    <fragment
+        android:id="@+id/FirstFragment"
+        android:name="org.ntlab.irisclient.FirstFragment"
+        android:label="@string/first_fragment_label"
+        tools:layout="@layout/fragment_first" >
+
+        <action
+            android:id="@+id/action_FirstFragment_to_SecondFragment"
+            app:destination="@id/SecondFragment" />
+    </fragment>
+    <fragment
+        android:id="@+id/SecondFragment"
+        android:name="org.ntlab.irisclient.SecondFragment"
+        android:label="@string/second_fragment_label"
+        tools:layout="@layout/fragment_second" >
+
+        <action
+            android:id="@+id/action_SecondFragment_to_FirstFragment"
+            app:destination="@id/FirstFragment" />
+    </fragment>
+</navigation>
\ No newline at end of file
diff --git a/app/src/main/res/values-land/dimens.xml b/app/src/main/res/values-land/dimens.xml
new file mode 100644
index 0000000..14991b4
--- /dev/null
+++ b/app/src/main/res/values-land/dimens.xml
@@ -0,0 +1,3 @@
+<resources>
+        <dimen name="fab_margin">48dp</dimen>
+    </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-w1240dp/dimens.xml b/app/src/main/res/values-w1240dp/dimens.xml
new file mode 100644
index 0000000..98f46b4
--- /dev/null
+++ b/app/src/main/res/values-w1240dp/dimens.xml
@@ -0,0 +1,3 @@
+<resources>
+        <dimen name="fab_margin">200dp</dimen>
+    </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-w600dp/dimens.xml b/app/src/main/res/values-w600dp/dimens.xml
new file mode 100644
index 0000000..14991b4
--- /dev/null
+++ b/app/src/main/res/values-w600dp/dimens.xml
@@ -0,0 +1,3 @@
+<resources>
+        <dimen name="fab_margin">48dp</dimen>
+    </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..a1ce694
--- /dev/null
+++ b/app/src/main/res/values/dimens.xml
@@ -0,0 +1,3 @@
+<resources>
+        <dimen name="fab_margin">16dp</dimen>
+    </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/ids.xml b/app/src/main/res/values/ids.xml
new file mode 100644
index 0000000..d82ad3f
--- /dev/null
+++ b/app/src/main/res/values/ids.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <item name="button" type="id" />
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 40530a0..b4937f2 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,3 +1,12 @@
 <resources>
     <string name="app_name">IrisClient</string>
+    <string name="title_activity_member_room">MemberRoomActivity</string>
+    <!-- Strings used for fragments for navigation -->
+    <string name="first_fragment_label">First Fragment</string>
+    <string name="second_fragment_label">Second Fragment</string>
+    <string name="next">Next</string>
+    <string name="previous">Previous</string>
+
+    <string name="hello_first_fragment">Hello first fragment</string>
+    <string name="hello_second_fragment">Hello second fragment. Arg: %1$s</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index b0ea23c..016d431 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,6 +1,6 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.IrisClient" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <style name="Theme.IrisClient" parent="Theme.MaterialComponents.DayNight.NoActionBar">
         <!-- Primary brand color. -->
         <item name="colorPrimary">@color/purple_500</item>
         <item name="colorPrimaryVariant">@color/purple_700</item>
@@ -13,4 +13,10 @@
         <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
     </style>
+    <style name="Theme.IrisClient.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+    <style name="Theme.IrisClient.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+    <style name="Theme.IrisClient.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
 </resources>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 7cbb664..ad7dc46 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@
         mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:7.0.3"
+        classpath 'com.android.tools.build:gradle:7.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle.properties b/gradle.properties
index 52f5917..b0b4cc4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -6,7 +6,7 @@
 # http://www.gradle.org/docs/current/userguide/build_environment.html
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
-org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+org.gradle.jvmargs=-Xms512m -Xmx1024m
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 6fba98d..5285427 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Tue Jun 14 13:21:09 JST 2022
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME