<?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=".TestActivity"> <Spinner android:id="@+id/testspinner" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="30dp" app:layout_constraintTop_toTopOf="parent" app:layout_constraintStart_toStartOf="@+id/setViewModel" app:layout_constraintEnd_toEndOf="@+id/setViewModel"/> <Button android:id="@+id/setViewModel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="set View Model" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.498" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.149" /> <ImageView android:id="@+id/imageView4" android:layout_width="wrap_content" android:layout_height="wrap_content" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" tools:srcCompat="@tools:sample/avatars" /> </androidx.constraintlayout.widget.ConstraintLayout>