gistfile1.txt

<LinearLayout
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        app:layout_constraintEnd_toStartOf="@+id/final_view"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <TextView
            android:background="#999"
            android:textColor="#FFF"
            android:padding="8dp"
            android:gravity="center|right"
            android:id="@+id/initial_view"
            android:layout_weight="40"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            tools:text="40"
            tools:ignore="RtlHardcoded" />

        <TextView
            android:gravity="center"
            android:id="@+id/counter_view"
            android:layout_weight="60"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent" />



    </LinearLayout>



    <TextView
        android:background="#333"
        android:textColor="#FFF"
        android:padding="8dp"
        android:gravity="center"
        android:id="@+id/final_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        tools:text="100"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

x

private fun reload(current: Int){
        val initialLayoutParams = initial_view.layoutParams as LinearLayout.LayoutParams
        initialLayoutParams.weight = current.toFloat()

        val counterLayoutParams = counter_view.layoutParams as LinearLayout.LayoutParams
        counterLayoutParams.weight = (final - current).toFloat()


        initial_view.layoutParams = initialLayoutParams
        counter_view.layoutParams = counterLayoutParams
    }