TermApp/app/src/main/res/layout/activity_main.xml

<?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"
    android:orientation="horizontal"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="38dp"
        android:layout_marginTop="38dp"
        android:text="Server"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/server"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="40dp"
        android:ems="10"
        android:inputType=""
        app:layout_constraintBottom_toBottomOf="@+id/textView"
        app:layout_constraintStart_toEndOf="@+id/textView"
        app:layout_constraintTop_toTopOf="@+id/textView" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="12dp"
        android:layout_marginTop="52dp"
        android:gravity="center"
        android:text="Port"
        app:layout_constraintLeft_toLeftOf="@+id/textView"
        app:layout_constraintTop_toBottomOf="@+id/textView" />

    <EditText
        android:id="@+id/port"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType=""
        android:text=""
        app:layout_constraintBottom_toBottomOf="@+id/textView2"
        app:layout_constraintLeft_toLeftOf="@+id/server"
        app:layout_constraintLeft_toRightOf="@+id/textView2"
        app:layout_constraintTop_toTopOf="@+id/textView2" />

    <Button
        android:id="@+id/startServBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        app:layout_constraintTop_toBottomOf="@+id/port"
        android:text="Start" />

    <Button
        android:id="@+id/stopServBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        android:layout_marginStart="12dp"
        android:enabled="false"
        app:layout_constraintTop_toBottomOf="@+id/port"
        app:layout_constraintStart_toEndOf="@+id/startServBtn"
        android:text="Stop" />

    <Button
        android:id="@+id/simchange"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        app:layout_constraintTop_toBottomOf="@+id/startServBtn"
        app:layout_constraintStart_toStartOf="@+id/startServBtn"
        android:text="sim卡获取" />

    <Button
        android:id="@+id/simchange2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        android:layout_marginStart="12dp"
        app:layout_constraintTop_toBottomOf="@+id/startServBtn"
        app:layout_constraintStart_toEndOf="@+id/simchange"
        android:text="切换sim2" />

    <Button
        android:id="@+id/takePhotoBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        app:layout_constraintTop_toBottomOf="@+id/simchange"
        android:text="Take Photo"
        />

    <Button
        android:id="@+id/takePhotoBtn2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        android:layout_marginStart="12dp"
        app:layout_constraintTop_toBottomOf="@+id/simchange"
        app:layout_constraintStart_toEndOf="@+id/takePhotoBtn"
        android:text="TP 2"
        />

    <Button
        android:id="@+id/takePhotoBtn3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="12dp"
        android:layout_marginStart="12dp"
        android:text="TP 3"
        app:layout_constraintTop_toBottomOf="@+id/simchange"
        app:layout_constraintStart_toEndOf="@+id/takePhotoBtn2"
         />

    <Button
        android:id="@+id/takePhotoBtn4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="12dp"
        android:layout_marginTop="12dp"
        android:text="TP 4"
        app:layout_constraintTop_toBottomOf="@+id/simchange"
        app:layout_constraintStart_toEndOf="@+id/takePhotoBtn3"
         />



    <TextView

        android:id="@+id/sample_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <SurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="411dp"
        android:layout_height="441dp"
        android:layout_marginStart="2dp"
        android:visibility="gone"
        app:layout_constraintStart_toStartOf="parent"
        tools:layout_editor_absoluteY="288dp" />

</androidx.constraintlayout.widget.ConstraintLayout>