allprojects {
  repositories {
    maven { url 'https://jitpack.io' }
  }
}

dependencies {
  implementation 'com.github.alexfu:CountDownView:0.1.0'
}

<com.alexfu.countdownview.CountDownView
    android:id="@+id/count_down"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="@style/TextAppearance.AppCompat.Display1"
    app:startDuration="60000"/>

CountDownView countDownView = findViewById(R.id.count_down);
countDownView.start();