app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
+ <Button
+ android:id="@+id/button"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_marginBottom="18dp"
+ android:layout_marginEnd="149dp"
+ android:layout_marginStart="147dp"
+ android:text="Button"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent" />
+
+ <SurfaceView
+ android:id="@+id/surfaceView"
+ android:layout_width="292dp"
+ android:layout_height="152dp"
+ android:layout_marginEnd="5dp"
+ android:layout_marginStart="5dp"
+ android:layout_marginTop="10dp"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
</android.support.constraint.ConstraintLayout>
\ No newline at end of file