android:layout_width="0dp"
android:layout_height="wrap_content"
android:indeterminate="true"
- android:progressTint="@color/colorAccent"
+ android:progressTint="?attr/colorAccent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"