ThreeGames/app/src/main/res/layout/activity_ring.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:keepScreenOn="true"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <TextView
        android:id="@+id/label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="您需要做遊戲啦"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:textSize="30sp"
        app:layout_constraintVertical_bias="0.3"/>

    <Button
        android:id="@+id/push_back"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:text="推遲"
        app:layout_constraintWidth_percent="0.8"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/label"
        android:textSize="30sp"
        android:layout_marginTop="60dp"/>

    <Button
        android:id="@+id/now"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:text="現在就做"
        app:layout_constraintWidth_percent="0.8"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        android:textSize="30sp"
        app:layout_constraintTop_toBottomOf="@id/push_back"
        android:layout_marginTop="30dp"/>
</androidx.constraintlayout.widget.ConstraintLayout>