<?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=".views.paint.PaintActivity"> <org.ntlab.acanthus_client.views.paint.PaintCanvas android:id="@+id/myCanvas" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" /> <Button android:id="@+id/button_clear" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="onClickClear" android:text="clear" app:layout_constraintBottom_toBottomOf="@+id/myCanvas" app:layout_constraintEnd_toEndOf="parent" /> <Button android:id="@+id/button_Invite" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginStart="280dp" android:layout_marginBottom="500dp" android:onClick="onClickInvite" android:text="Button" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="@+id/myCanvas" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> </androidx.constraintlayout.widget.ConstraintLayout>