[HSE] [My first Android application] Step 2: Timer activity

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"
    tools:context=".MainActivity">

    <include
        android:id="@+id/progress_content"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginTop="64dp"
        app:layout_constraintDimensionRatio="1:1"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        layout="@layout/content_progressbar" />

    <androidx.appcompat.widget.AppCompatImageView
        android:id="@+id/play_button"
        android:layout_width="72dp"
        android:layout_height="72dp"
        android:background="@drawable/circle"
        android:layout_marginTop="32dp"
        android:padding="12dp"
        app:tint="#EF5350"
        app:srcCompat="@drawable/ic_play"
        app:layout_constraintTop_toBottomOf="@id/progress_content"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

circle.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <stroke
        android:width="6dp"
        android:color="#EEEEEE" />
</shape>

ic_play.xml

<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="48dp"
    android:height="48dp"
    android:viewportWidth="960"
    android:viewportHeight="960"
    android:tint="?attr/colorControlNormal">
  <path
      android:fillColor="@android:color/white"
      android:pathData="M366,728Q351,738 335.5,729Q320,720 320,702L320,252Q320,234 335.5,225Q351,216 366,226L720,452Q734,461 734,477Q734,493 720,502L366,728ZM380,477L380,477L380,477L380,477ZM380,648L649,477L380,306L380,648Z"/>
</vector>