PixelDroid-App-Android/app/src/main/res/layout/fragment_post_creation.xml

<?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=".postCreation.PostCreationFragment"
    android:id="@+id/postCreationFragment" >

    <org.pixeldroid.app.postCreation.carousel.ImageCarousel
        android:id="@+id/carousel"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:showCaption="true"
        app:layout_constraintBottom_toTopOf="@+id/buttonConstraints"
        app:layout_constraintTop_toTopOf="parent"/>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/buttonConstraints"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

        <Button
            android:id="@+id/post_creation_send_button"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:enabled="true"
            android:text="@string/upload_next_step"
            android:visibility="visible"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    </androidx.constraintlayout.widget.ConstraintLayout>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/toolbarPostCreation"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#40000000"
        android:minHeight="?attr/actionBarSize"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.appcompat.widget.AppCompatImageButton
            android:id="@+id/savePhotoButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="30dp"
            android:background="?attr/selectableItemBackgroundBorderless"
            android:contentDescription="@string/save_to_gallery"
            android:tooltipText='@string/save_to_gallery'
            android:src="@drawable/download_file_30dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.appcompat.widget.AppCompatImageButton
            android:id="@+id/removePhotoButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="30dp"
            android:background="?attr/selectableItemBackgroundBorderless"
            android:contentDescription="@string/delete"
            android:tooltipText='@string/delete'
            android:src="@drawable/delete_30dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toEndOf="@+id/savePhotoButton"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.appcompat.widget.AppCompatImageButton
            android:id="@+id/editPhotoButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="30dp"
            android:background="?attr/selectableItemBackgroundBorderless"
            android:contentDescription="@string/edit"
            android:tooltipText='@string/edit'
            android:src="@drawable/ic_baseline_edit_30"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toEndOf="@+id/removePhotoButton"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.appcompat.widget.AppCompatImageButton
            android:id="@+id/addPhotoButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="30dp"
            android:background="?attr/selectableItemBackgroundBorderless"
            android:contentDescription="@string/add_photo"
            android:tooltipText='@string/add_photo'
            android:src="@drawable/add_photo_button"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    </androidx.constraintlayout.widget.ConstraintLayout>

</androidx.constraintlayout.widget.ConstraintLayout>