diff --git a/app/src/main/java/org/ntlab/acanthus_client/views/paint/SendScreenShotActivity.java b/app/src/main/java/org/ntlab/acanthus_client/views/paint/SendScreenShotActivity.java
index 732e525..a98df51 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/views/paint/SendScreenShotActivity.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/views/paint/SendScreenShotActivity.java
@@ -3,111 +3,137 @@
 import androidx.appcompat.app.AppCompatActivity;
 
 import android.app.Activity;
+import android.graphics.ImageFormat;
+import android.os.Bundle;
 import android.content.Intent;
 import android.graphics.Bitmap;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Environment;
+import android.graphics.PixelFormat;
+import android.hardware.display.DisplayManager;
+import android.hardware.display.VirtualDisplay;
+import android.media.Image;
+import android.media.ImageReader;
+import android.media.projection.MediaProjection;
+import android.media.projection.MediaProjectionManager;
+import android.util.DisplayMetrics;
+import android.util.Log;
 import android.view.View;
 import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.Toast;
 
 import org.ntlab.acanthus_client.R;
 
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
+import java.nio.ByteBuffer;
 
-public class SendScreenShotActivity extends Activity implements View.OnClickListener {
+import static android.graphics.ImageFormat.JPEG;
+
+
+public class SendScreenShotActivity extends Activity {
+
+    private MediaProjectionManager mpManager;
+    private MediaProjection mProjection;
+    private static final int REQUEST_MEDIA_PROJECTION = 1001;
+
+    private int displayWidth, displayHeight;
+    private ImageReader imageReader;
+    private VirtualDisplay virtualDisplay;
+    private int screenDensity;
+    private ImageView imageView;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_send_screen_shot);
-        // 全体キャプチャ
-        Button captureAll = (Button)findViewById(R.id.capture_all);
-        captureAll.setOnClickListener(this);
 
-        // アイコン画像のみキャプチャ
-        Button captureIcon = (Button)findViewById(R.id.capture_icon);
-        captureIcon.setOnClickListener(this);
+        Button button = findViewById(R.id.capture);
+        // ボタンタップでスクリーンショットを撮る
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                getScreenshot();
+            }
+        });
 
-        // キャプチャした画像を添付してメールを送る
-        Button sendMail = (Button)findViewById(R.id.send_mail);
-        sendMail.setOnClickListener(this);
+        // 撮影したスクリーンを表示するImageView
+        imageView = findViewById(R.id.image);
 
+        // 画面の縦横サイズとdpを取得
+        DisplayMetrics displayMetrics = new DisplayMetrics();
+        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
+        screenDensity = displayMetrics.densityDpi;
+        displayWidth = displayMetrics.widthPixels;
+        displayHeight = displayMetrics.heightPixels;
+
+        mpManager = (MediaProjectionManager)
+                getSystemService(MEDIA_PROJECTION_SERVICE);
+
+        // permissionを確認するintentを投げ、ユーザーの許可・不許可を受け取る
+        if(mpManager != null){
+            startActivityForResult(mpManager.createScreenCaptureIntent(),
+                    REQUEST_MEDIA_PROJECTION);
+        }
+    }
+
+    // ユーザーの許可を受け取る
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (REQUEST_MEDIA_PROJECTION == requestCode) {
+            if (resultCode != RESULT_OK) {
+                // 拒否された
+                Toast.makeText(this,
+                        "User cancelled", Toast.LENGTH_LONG).show();
+                return;
+            }
+            // 許可された結果を受け取る
+            setUpMediaProjection(resultCode, data);
+        }
+    }
+
+    private void setUpMediaProjection(int code, Intent intent) {
+        mProjection = mpManager.getMediaProjection(code, intent);
+        setUpVirtualDisplay();
+    }
+
+    private void setUpVirtualDisplay() {
+        imageReader = ImageReader.newInstance(
+                displayWidth, displayHeight, 0x1, 2);
+
+        virtualDisplay = mProjection.createVirtualDisplay("ScreenCapture",
+                displayWidth, displayHeight, screenDensity,
+                DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR,
+                imageReader.getSurface(), null, null);
+    }
+
+    private void getScreenshot() {
+        // ImageReaderから画面を取り出す
+        Log.d("debug", "getScreenshot");
+
+        Image image = imageReader.acquireLatestImage();
+        Image.Plane[] planes = image.getPlanes();
+        ByteBuffer buffer = planes[0].getBuffer();
+
+        int pixelStride = planes[0].getPixelStride();
+        int rowStride = planes[0].getRowStride();
+        int rowPadding = rowStride - pixelStride * displayWidth;
+
+        // バッファからBitmapを生成
+        Bitmap bitmap = Bitmap.createBitmap(
+                displayWidth + rowPadding / pixelStride, displayHeight,
+                Bitmap.Config.ARGB_8888);
+        bitmap.copyPixelsFromBuffer(buffer);
+        image.close();
+
+        imageView.setImageBitmap(bitmap);
     }
 
     @Override
-    public void onClick(View v) {
-        // 読み書きするファイル名を指定
-        File file = new File(Environment.getExternalStorageDirectory() + "/capture.jpeg");
-        // 指定したファイル名が無ければ作成する。
-        file.getParentFile().mkdir();
-
-        switch(v.getId()) {
-            case R.id.capture_all:
-                // 全体を撮る
-                saveCapture(findViewById(android.R.id.content),file);
-                break;
-            case R.id.capture_icon:
-                // View1を撮る
-                saveCapture(findViewById(R.id.icon),file);
-                break;
-            case R.id.send_mail:
-                Intent intent = new Intent();
-                intent.setAction(Intent.ACTION_SEND);
-                intent.putExtra(Intent.EXTRA_EMAIL, new String[] {"s1871104@s.konan-u.ac.jp"});
-                intent.setType("message/rfc822");
-                intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
-                startActivity(intent);
-
-                break;
+    protected void onDestroy() {
+        if (virtualDisplay != null) {
+            Log.d("debug","release VirtualDisplay");
+            virtualDisplay.release();
         }
+        super.onDestroy();
     }
-
-    /**
-     * 撮ったキャプチャを保存
-     * @param view
-     * @param 書き込み先ファイルfile
-     */
-    public void saveCapture(View view, File file) {
-        // キャプチャを撮る
-        Bitmap capture = getViewCapture(view);
-        FileOutputStream fos = null;
-        try {
-            fos = new FileOutputStream(file, false);
-            // 画像のフォーマットと画質と出力先を指定して保存
-            capture.compress(Bitmap.CompressFormat.JPEG, 100, fos);
-            fos.flush();
-        } catch (Exception e) {
-            e.printStackTrace();
-        } finally {
-            if (fos != null) {
-                try {
-                    fos.close();
-                } catch (IOException ie) {
-                    fos = null;
-                }
-            }
-        }
-    }
-
-    /**
-     * キャプチャを撮る
-     * @param 撮りたいview
-     * @return 撮ったキャプチャ(Bitmap)
-     */
-    public Bitmap getViewCapture(View view) {
-        view.setDrawingCacheEnabled(true);
-
-        // Viewのキャプチャを取得
-        Bitmap cache = view.getDrawingCache();
-        if(cache == null){
-            return null;
-        }
-        Bitmap screenShot = Bitmap.createBitmap(cache);
-        view.setDrawingCacheEnabled(false);
-        return screenShot;
-    }
-
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_send_screen_shot.xml b/app/src/main/res/layout/activity_send_screen_shot.xml
index 5bef23e..2d64116 100644
--- a/app/src/main/res/layout/activity_send_screen_shot.xml
+++ b/app/src/main/res/layout/activity_send_screen_shot.xml
@@ -3,34 +3,21 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="300dp"
-    android:translationY="175dp"
+    android:layout_height="match_parent"
     tools:context=".views.paint.SendScreenShotActivity">
 
     <Button
-        android:id="@+id/capture_all"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:padding="@dimen/activity_vertical_margin"
-        android:text="capture_all"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.285" />
-
-    <Button
-        android:id="@+id/capture_icon"
+        android:id="@+id/capture"
         android:layout_width="136dp"
         android:layout_height="52dp"
         android:padding="@dimen/activity_vertical_margin"
-        android:text="capture_icon"
+        android:text="capture"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.498"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/capture_all"
-        app:layout_constraintVertical_bias="0.007" />
+        app:layout_constraintTop_toBottomOf="@+id/image"
+        app:layout_constraintVertical_bias="0.247" />
 
     <Button
         android:id="@+id/send_mail"
@@ -40,35 +27,33 @@
         android:text="send_mail"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.497"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.987" />
-
-    <ImageView
-        android:id="@+id/icon"
-        android:layout_width="84dp"
-        android:layout_height="87dp"
-        android:padding="@dimen/activity_vertical_margin"
-        android:src="@drawable/headshot_reasonably_small_400x400"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.498"
         app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/capture"
+        app:layout_constraintVertical_bias="0.104" />
+
+    <ImageView
+        android:id="@+id/image"
+        android:layout_width="269dp"
+        android:layout_height="436dp"
+        android:padding="@dimen/activity_vertical_margin"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.779" />
+        app:layout_constraintVertical_bias="0.206" />
 
     <TextView
         android:id="@+id/textView3"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="心がスクショしたがってるんだ。"
-        android:textColor="#716D6D"
+        android:textColor="#03A9F4"
         android:textSize="20sp"
-        app:layout_constraintBottom_toTopOf="@+id/capture_all"
+        app:layout_constraintBottom_toTopOf="@+id/capture"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="1.0" />
+        app:layout_constraintTop_toBottomOf="@+id/image"
+        app:layout_constraintVertical_bias="0.0" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file