Θέλουμε μικρή μετατροπή του start_screen.xml

[Argiris2000]

<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto" tools:context=".MainActivity">

<!-- Background Image View -->
<ImageView
    android:id="@+id/backgroundImageView"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:src="@drawable/received_663824995734600"
    android:scaleType="centerCrop"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"/>

<!-- Your existing content -->
<Button
    android:id="@+id/startButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/start"
    android:textSize="18sp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/backgroundImageView"
    app:layout_constraintVertical_bias="0.8"/>

</androidx.constraintlayout.widget.ConstraintLayout>