diff --git a/.idea/misc.xml b/.idea/misc.xml
index 37a7509..dfd2c79 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="JDK" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f419fef..9e7e286 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.ntlab.amaryllis.client">
-
     <!--
          The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
          Google Maps Android API v2, but you must specify either coarse or fine
@@ -20,7 +19,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-
+        <activity android:name=".VoiceActivity"></activity>
         <!--
              The API key for Google Maps-based APIs is defined as a string resource.
              (See the file "res/values/google_maps_api.xml").
diff --git a/app/src/main/java/org/ntlab/amaryllis/client/VoiceActivity.java b/app/src/main/java/org/ntlab/amaryllis/client/VoiceActivity.java
new file mode 100644
index 0000000..3fc6e18
--- /dev/null
+++ b/app/src/main/java/org/ntlab/amaryllis/client/VoiceActivity.java
@@ -0,0 +1,239 @@
+package org.ntlab.amaryllis.client;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+
+import android.media.MediaPlayer;
+import android.media.MediaRecorder;
+import android.os.Bundle;
+
+import android.app.FragmentManager;
+import android.view.LayoutInflater;
+import android.os.Environment;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.SeekBar;
+import android.widget.TextView;
+
+import java.io.File;
+
+
+public class VoiceActivity extends AppCompatActivity {
+
+    private MediaRecorder mr;
+    private MediaPlayer mp;
+    static final String filePath = Environment.getExternalStorageDirectory() + "/app/res/raw";
+    private int totalTime;
+    private SeekBar positionBar;
+    private TextView elapsedTimeLabel;
+    private TextView remainingTimeLabel;
+    private int StartChange = 1;
+    File file;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.fragment_maps);
+        //setContentView(R.layout.activity_voice);
+        file = new File(getFilesDir(),"Sample.3gp");
+        mp = new MediaPlayer();
+
+
+
+        Button Record = (Button)findViewById(R.id.button);
+        Record.setOnClickListener(new View.OnClickListener(){
+            public void onClick(View x){
+                System.out.println("!!!");
+                TextView textView1 = (TextView)findViewById(R.id.Notice);
+                textView1.setText("Record Start!");
+                startRecord();
+            }
+        });
+
+        Button Playback = (Button)findViewById(R.id.button2);
+        Playback.setOnClickListener(new View.OnClickListener(){
+            public void onClick(View x){
+                TextView textView1 = (TextView)findViewById(R.id.Notice);
+                textView1.setText("Playback Start!");
+                startPlay();
+            }
+        });
+    }
+
+
+    //再生開始&再生中止
+    private void startPlay(){
+        ImageView Stoping = findViewById(R.id.Stoping);
+        ImageView Playing = findViewById(R.id.Playing);
+        float Tmin = 0;
+        float Tmax = 255;
+        //mp = new MediaPlayer();
+        //mp = MediaPlayer.create(this,R.raw.bgm);
+
+        if(mp.isPlaying()){
+            mp.stop();//再生を中断
+            //mp.pause();//途中から再生を再開したい時はこっちを使う必要があるかも
+
+
+            Stoping.setAlpha(1.0f);//画像が見えるようにする処理
+            Playing.setAlpha(0.0f);//画像が見えないようにする処理
+
+
+            //try{
+            //mp.prepare();
+            //}catch(IllegalStateException e){
+            //e.printStackTrace();
+            //}catch(IOException e){
+            //e.printStackTrace();
+            //}
+        }else {
+            try {
+                //mp = new MediaPlayer();
+                mp.setDataSource(file.getAbsolutePath());//再生するファイルを持ってくる
+
+                //OutputStream filePath = openFileOutput("a",MODE_PRIVATE);
+                //mp.setDataSource(filePath);
+                mp.prepare();
+            }catch(IllegalStateException e){
+                e.printStackTrace();
+
+                //if(StartChange == 1){
+                //positionBar = findViewById(R.id.positionBar);
+                //positionBar.setMax(totalTime);
+                //positionBar.setOnSeekBarChangeListener(
+                //new SeekBar.OnSeekBarChangeListener(){
+                //public void onProgressChanged(SeekBar seekBar,int progress,boolean fromUser){
+                //if(fromUser){
+                //mp.seekTo(progress);
+                //positionBar.setProgress(progress);
+                //}
+                //}
+
+                //public void onStartTrackingTouch(SeekBar seekBar){
+
+                //}
+
+                //public void onStopTrackingTouch(SeekBar seekBar){
+
+                //}
+                //}
+                //);
+
+                //}
+
+                //mp.start();
+
+
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+
+            mp.seekTo(0);
+            mp.start();//再生スタート
+            Playing.setAlpha(1.0f);
+            Stoping.setAlpha(0.0f);
+        }
+        totalTime = mp.getDuration();
+        String S_totalTime = createTimeLabel(totalTime);//createTimeLabelにtotalTimeを渡す。
+        TextView voiceTime = (TextView)findViewById(R.id.VoiceTime);
+        voiceTime.setText(S_totalTime);
+    }
+
+    //totalTimeを分、秒に変換
+    public String createTimeLabel(int time){
+        String timeLabel = "";
+        int min = time/1000/60;
+        int sec = time/1000%60;
+
+        timeLabel = min + ":";
+        if(sec < 10) timeLabel += "0";
+        timeLabel += sec;
+        return timeLabel;
+    }
+
+    //録音開始&録音終了
+    private void startRecord(){
+
+        if(StartChange == 0) {
+            try {
+                mr.stop();
+                mr.reset();
+                mr.release();
+                StartChange = 1;
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }else {
+            try {
+                mr = new MediaRecorder();
+                mr.setAudioSource(MediaRecorder.AudioSource.MIC);
+                mr.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
+                mr.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
+                mr.setOutputFile(file.getAbsolutePath());
+                //mr.setOutputFile(filePath);
+
+                mr.prepare();
+                mr.start();
+                StartChange = 0;
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+
+
+
+    //private Handler handler = new Handler(){
+    //@Override
+    //public void handleMessage(Message msg){
+    //int currentPosition = msg.what;
+
+    //再生位置を更新
+    //positionBar.setProgress(currentPositon);
+
+    //経過時間ラベル更新
+    //String elapsedTime = createTimeLabel(currentPosition);
+    //elapseTimeLabel.setText(elapsedTime);
+
+    //残り時間ラベル更新
+    //String remainingTime = createTimeLabel(totalTime - currentPosition);
+    //remainingTimeLabel.setText("-" + remainingTime);
+    //}
+    //};
+
+
+
+    //再生停止
+    //private void stopPlay(){
+    //try{
+    //mp.stop();
+    //mp.prepare();
+    //mp.release();
+    //}catch(IllegalStateException e){
+    //e.printStackTrace();
+    //}catch(Exception e){
+    //e.printStackTrace();
+    //}
+    //}
+
+
+    //録音終了
+    //private void stopRecord(){
+    //try{
+    //mr.stop();
+    //mr.reset();
+    //mr.release();
+
+    //}catch(Exception e){
+    //e.printStackTrace();
+    //}
+    //}
+
+
+
+}
\ No newline at end of file
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 f707b41..b5669c9 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
@@ -4,11 +4,15 @@
 import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
 
+import android.content.Intent;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+
+import android.widget.Button;
+
 import com.google.android.gms.maps.CameraUpdateFactory;
 import com.google.android.gms.maps.GoogleMap;
 import com.google.android.gms.maps.OnMapReadyCallback;
@@ -17,9 +21,12 @@
 import com.google.android.gms.maps.model.MarkerOptions;
 
 import org.ntlab.amaryllis.client.R;
+import org.ntlab.amaryllis.client.VoiceActivity;
 
 public class MapsFragment extends Fragment {
 
+    Button rokuButton;
+
     private OnMapReadyCallback callback = new OnMapReadyCallback() {
 
         /**
@@ -45,15 +52,51 @@
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_maps, container, false);
+
     }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
+
+        rokuButton = (Button)view.findViewById(R.id.button);
+        rokuButton.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                Intent intent = new Intent(getActivity(), VoiceActivity.class);
+                startActivity(intent);
+            }
+        });
         SupportMapFragment mapFragment =
                 (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map);
         if (mapFragment != null) {
             mapFragment.getMapAsync(callback);
         }
     }
+
+
+    public class FragmentTest extends Fragment implements View.OnClickListener {
+
+        @Override
+        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
+            // 第３引数のbooleanは"container"にreturnするViewを追加するかどうか
+            //trueにすると最終的なlayoutに再度、同じView groupが表示されてしまうのでfalseでOKらしい
+            View v = inflater.inflate(R.layout.fragment_maps, container, false);
+
+            // ボタンを取得して、ClickListenerをセット
+            Button btn = (Button)v.findViewById(R.id.button);
+            btn.setOnClickListener(this);
+            return v;
+        }
+
+        @Override
+        public void onClick(View v) {
+            // TODO 自動生成されたメソッド・スタブ
+            System.out.println("!!!");
+        }
+
+    }
+
+
+
+
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index e1be0c7..7d686f3 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -37,6 +37,18 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintVertical_bias="0.431"
         app:navGraph="@navigation/mobile_navigation" />
+    <Button
+        android:id="@+id/button"
+        android:layout_width="61dp"
+        android:layout_height="47dp"
+        android:layout_marginBottom="48dp"
+        android:text="Rec"
+        app:layout_constraintBottom_toTopOf="@+id/nav_view"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.773"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="1.0" />
 
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_maps.xml b/app/src/main/res/layout/fragment_maps.xml
index 7dbb416..e17f020 100644
--- a/app/src/main/res/layout/fragment_maps.xml
+++ b/app/src/main/res/layout/fragment_maps.xml
@@ -1,5 +1,13 @@
 <?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=".fragment.MapsFragment">
+
 <fragment xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:map="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/map"
     android:name="com.google.android.gms.maps.SupportMapFragment"
@@ -7,3 +15,64 @@
     android:layout_height="match_parent"
     tools:context=".fragment.MapsFragment" />
 
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="録音"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="@+id/Notice" />
+
+    <FrameLayout
+        android:layout_width="67dp"
+        android:layout_height="60dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent">
+
+        <Button
+            android:id="@+id/button2"
+            android:layout_width="52dp"
+            android:layout_height="48dp"
+            android:alpha="0"
+            android:text="再生" />
+
+        <ImageView
+            android:id="@+id/Stoping"
+            android:layout_width="46dp"
+            android:layout_height="42dp"
+            android:src="@android:drawable/ic_media_play" />
+
+        <ImageView
+            android:id="@+id/Playing"
+            android:layout_width="45dp"
+            android:layout_height="40dp"
+            android:alpha="0"
+            android:src="@android:drawable/ic_media_pause" />
+
+    </FrameLayout>
+
+    <TextView
+        android:id="@+id/Notice"
+        android:layout_width="wrap_content"
+        android:layout_height="47dp"
+        android:text="ここにボタンを押した時の挙動が表示されます。"
+        android:textSize="18sp"
+        app:layout_constraintBottom_toTopOf="@+id/button"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <TextView
+        android:id="@+id/VoiceTime"
+        android:layout_width="298dp"
+        android:layout_height="55dp"
+        android:text="ここに再生時間が表示されます。"
+        android:textSize="18sp"
+        app:layout_constraintBottom_toTopOf="@+id/Notice"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file