activity_memoria.xml

<?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">

    <GridView
        android:id="@+id/field"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        tools:ignore="MissingConstraints" />

    <TextView
        android:id="@+id/guessedview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""
        tools:layout_editor_absoluteX="142dp"
        tools:layout_editor_absoluteY="337dp"
        tools:ignore="MissingConstraints" />

    <Chronometer
        android:id="@+id/timerview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        tools:ignore="MissingConstraints">

    </Chronometer>
</androidx.constraintlayout.widget.ConstraintLayout>