Chciałbym aby tekst układał się na środku w stosunku do wysokości Buttona, lecz tak niestety nie jest.
To jest layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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:background="@drawable/spacebackground"
tools:context="com.example.user.app.cosmos1">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="439dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.461"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.96">
<Button
android:id="@+id/cosmos11"
android:layout_width="match_parent"
android:layout_height="85dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginTop="41dp"
android:background="@drawable/cosmosbutton"
android:fontFamily="@font/bungee"
android:text="@string/cosmos1.1"
android:textAlignment="center"
android:textColor="#FFFFFF"
android:textSize="46sp" />
<Button
android:id="@+id/cosmos13"
android:layout_width="match_parent"
android:layout_height="85dp"
android:layout_alignParentStart="true"
android:layout_below="@+id/cosmos12"
android:layout_marginTop="15dp"
android:background="@drawable/cosmosbutton"
android:fontFamily="@font/bungee"
android:text="@string/cosmos1.3"
android:textAlignment="center"
android:textColor="#FFFFFF"
android:textSize="46sp" />
<Button
android:id="@+id/cosmos14"
android:layout_width="match_parent"
android:layout_height="85dp"
android:layout_alignParentBottom="true"
android:layout_alignParentStart="true"
android:layout_marginBottom="11dp"
android:background="@drawable/cosmosbutton"
android:fontFamily="@font/bungee"
android:text="@string/cosmos1.4"
android:textAlignment="center"
android:textColor="#FFFFFF"
android:textSize="46sp" />
<Button
android:id="@+id/cosmos12"
android:layout_width="match_parent"
android:layout_height="85dp"
android:layout_alignParentStart="true"
android:layout_below="@+id/cosmos11"
android:layout_marginTop="14dp"
android:background="@drawable/cosmosbutton"
android:fontFamily="@font/bungee"
android:text="@string/cosmos1.2"
android:textAlignment="center"
android:textColor="#FFFFFF"
android:textSize="46sp" />
</RelativeLayout>
</android.support.constraint.ConstraintLayout>