app/src/main/res/layout/activity_cook_now.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"
android:orientation="vertical"
tools:context=".MainActivity"
>
<androidx.fragment.app.FragmentContainerView
android:id="@+id/container_step"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
app:layout_constraintBottom_toTopOf="@+id/buttonContainer"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
<LinearLayout
android:id="@+id/buttonContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="horizontal"
android:gravity="center"
android:padding="16dp"
app:layout_constraintTop_toBottomOf="@+id/container_step"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent">
<androidx.fragment.app.FragmentContainerView
android:id="@+id/container_timer"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button
android:id="@+id/btnBackward"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Back" />
<Button
android:id="@+id/btnForward"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Next" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>