1 <?xml version="1.0" encoding="utf-8"?>
2 <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 xmlns:app="http://schemas.android.com/apk/res-auto"
4 xmlns:tools="http://schemas.android.com/tools"
5 android:layout_width="match_parent"
6 android:layout_height="match_parent"
7 tools:context=".MainActivity">
10 android:id="@+id/button"
11 android:layout_width="wrap_content"
12 android:layout_height="wrap_content"
13 android:layout_marginBottom="18dp"
14 android:layout_marginEnd="149dp"
15 android:layout_marginStart="147dp"
16 android:text="@string/btn"
17 app:layout_constraintBottom_toBottomOf="parent"
18 app:layout_constraintEnd_toEndOf="parent"
19 app:layout_constraintStart_toStartOf="parent" />
22 android:id="@+id/surfaceView"
23 android:layout_width="335dp"
24 android:layout_height="421dp"
25 android:layout_marginEnd="5dp"
26 android:layout_marginStart="5dp"
27 android:layout_marginTop="10dp"
28 app:layout_constraintEnd_toEndOf="parent"
29 app:layout_constraintStart_toStartOf="parent"
30 app:layout_constraintTop_toTopOf="parent" />
32 </android.support.constraint.ConstraintLayout>