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:layout_width="wrap_content"
11 android:layout_height="wrap_content"
12 android:text="@string/app_name"
13 app:layout_constraintBottom_toBottomOf="parent"
14 app:layout_constraintLeft_toLeftOf="parent"
15 app:layout_constraintRight_toRightOf="parent"
16 app:layout_constraintTop_toTopOf="parent" />
19 android:id="@+id/button"
20 android:layout_width="wrap_content"
21 android:layout_height="wrap_content"
22 android:layout_marginBottom="18dp"
23 android:layout_marginEnd="149dp"
24 android:layout_marginStart="147dp"
26 app:layout_constraintBottom_toBottomOf="parent"
27 app:layout_constraintEnd_toEndOf="parent"
28 app:layout_constraintStart_toStartOf="parent" />
31 android:id="@+id/surfaceView"
32 android:layout_width="292dp"
33 android:layout_height="152dp"
34 android:layout_marginEnd="5dp"
35 android:layout_marginStart="5dp"
36 android:layout_marginTop="10dp"
37 app:layout_constraintEnd_toEndOf="parent"
38 app:layout_constraintStart_toStartOf="parent"
39 app:layout_constraintTop_toTopOf="parent" />
41 </android.support.constraint.ConstraintLayout>