Quelle  fragment_backup_data.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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="?android:attr/colorBackground">

    <androidx.core.widget.NestedScrollView
        android:id="@+id/scroll_parent"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/transparent"
        android:clipToPadding="false">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <LinearLayout
                    android:id="@+id/intro_layout"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="@dimen/grid_unit_x2"
                    android:orientation="vertical"
                    android:padding="@dimen/grid_unit_x2">

                    <FrameLayout
                        android:id="@+id/logo_frame"
                        android:layout_width="128dp"
                        android:layout_height="128dp"
                        android:layout_gravity="center_horizontal|top"
                        android:contentDescription="@string/image_placeholder"
                        android:importantForAccessibility="no">

                        <ch.threema.app.ui.SquareImageView
                            android:layout_width="match_parent"
                            android:layout_height="match_parent"
                            android:importantForAccessibility="no"
                            android:src="@drawable/ic_circle_white"
                            android:tint="?attr/colorSecondaryContainer" />

                        <ImageView
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:layout_gravity="center"
                            android:layout_marginHorizontal="@dimen/grid_unit_x2"
                            android:adjustViewBounds="true"
                            android:importantForAccessibility="no"
                            android:src="@drawable/ic_backup_data_black_192dp"
                            app:tint="?attr/colorOnSecondaryContainer" />

                    </FrameLayout>

                    <TextView
                        android:id="@+id/empty_text"
                        style="@style/Threema.TextAppearance.EmptyView"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_marginTop="@dimen/grid_unit_x4"
                        android:fontFamily="sans-serif-light"
                        android:gravity="center_horizontal|bottom"
                        android:text="@string/data_backup_headline"
                        android:textAlignment="center"
                        android:textSize="18sp" />

                </LinearLayout>

                <com.google.android.material.card.MaterialCardView
                    android:id="@+id/last_backup_layout"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginHorizontal="@dimen/grid_unit_x2"
                    android:layout_marginTop="@dimen/grid_unit_x2"
                    android:outlineProvider="none"
                    app:cardBackgroundColor="?attr/colorSurface"
                    app:cardCornerRadius="@dimen/cardview_border_radius"
                    app:cardElevation="4dp"
                    app:contentPaddingBottom="@dimen/grid_unit_x1_5"
                    app:contentPaddingLeft="@dimen/grid_unit_x2"
                    app:contentPaddingRight="@dimen/grid_unit_x2"
                    app:contentPaddingTop="@dimen/grid_unit_x1_5"
                    app:strokeWidth="0dp"
                    tools:visibility="gone">

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="vertical">

                        <TextView
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:text="@string/data_backup_last_date"
                            android:textAppearance="@style/Threema.TextAppearance.Overline" />

                        <TextView
                            android:id="@+id/last_backup_date"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_marginTop="@dimen/grid_unit_x1"
                            android:ellipsize="middle"
                            android:singleLine="true"
                            android:text=""
                            android:textAppearance="@style/Threema.TextAppearance.BodyMedium" />

                    </LinearLayout>

                </com.google.android.material.card.MaterialCardView>

            </FrameLayout>

            <com.google.android.material.card.MaterialCardView
                android:id="@+id/path_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginHorizontal="@dimen/grid_unit_x2"
                android:layout_marginTop="@dimen/grid_unit_x2"
                android:outlineProvider="none"
                app:cardBackgroundColor="?attr/colorSurface"
                app:cardCornerRadius="@dimen/cardview_border_radius"
                app:cardElevation="4dp"
                app:contentPaddingBottom="@dimen/grid_unit_x0_5"
                app:contentPaddingLeft="@dimen/grid_unit_x2"
                app:contentPaddingRight="@dimen/grid_unit_x2"
                app:contentPaddingTop="@dimen/grid_unit_x1_5"
                app:strokeWidth="0dp">

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical">

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="@string/data_backup_save_path"
                        android:textAppearance="@style/Threema.TextAppearance.Overline" />

                    <TextView
                        android:id="@+id/backup_path"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginTop="8dp"
                        android:ellipsize="middle"
                        android:singleLine="true"
                        android:text=""
                        android:textAppearance="@style/Threema.TextAppearance.BodyMedium" />

                    <com.google.android.material.button.MaterialButton
                        android:id="@+id/backup_path_change_btn"
                        style="@style/Threema.MaterialButton.Borderless.Flush"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="right"
                        android:text="@string/change" />

                </LinearLayout>

            </com.google.android.material.card.MaterialCardView>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginVertical="@dimen/grid_unit_x2"
                android:paddingHorizontal="@dimen/grid_unit_x2">

                <com.google.android.material.button.MaterialButton
                    android:id="@+id/info"
                    style="@style/Threema.MaterialButton.Outlined.Primary"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:contentDescription="@string/safe_learn_more_button"
                    android:text="@string/safe_learn_more_button"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintHorizontal_chainStyle="spread_inside"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

                <com.google.android.material.button.MaterialButton
                    android:id="@+id/restore"
                    style="@style/Threema.MaterialButton.Outlined.Primary"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_alignParentRight="true"
                    android:contentDescription="@string/restore"
                    android:text="@string/restore"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

            </androidx.constraintlayout.widget.ConstraintLayout>

        </LinearLayout>

    </androidx.core.widget.NestedScrollView>

    <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
        android:id="@+id/floating"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|right"
        android:layout_margin="@dimen/grid_unit_x2"
        android:contentDescription="@string/backup_data_new"
        android:text="@string/backup_data_new"
        android:visibility="visible"
        app:icon="@drawable/ic_add_white_24dp"
        app:layout_anchorGravity="bottom|right|end" />

</FrameLayout>