Magisk/app/src/main/res/layout/activity_flash.xml

<?xml version="1.0" encoding="utf-8"?>
<layout 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">

    <data>

        <variable
            name="viewModel"
            type="com.topjohnwu.magisk.ui.flash.FlashViewModel" />

    </data>

    <androidx.coordinatorlayout.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <com.google.android.material.appbar.AppBarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/AppBarLayoutTheme.Flashing">

            <androidx.appcompat.widget.Toolbar
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:contentInsetLeft="0dp"
                app:contentInsetStart="0dp"
                app:popupTheme="@style/ToolbarPopupTheme.Flashing">

                <androidx.constraintlayout.widget.ConstraintLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:animateLayoutChanges="true">

                    <FrameLayout
                        invisibleScale="@{viewModel.loading}"
                        android:layout_width="0dp"
                        android:layout_height="match_parent"
                        android:background="?attr/selectableItemBackgroundBorderless"
                        android:onClick="@{() -> viewModel.backPressed()}"
                        app:layout_constraintDimensionRatio="1:1"
                        app:layout_constraintLeft_toLeftOf="parent">

                        <androidx.appcompat.widget.AppCompatImageView
                            style="@style/Widget.Icon"
                            android:layout_gravity="center"
                            android:background="@android:color/transparent"
                            app:srcCompat="@drawable/ic_back"
                            app:tint="@android:color/white" />

                    </FrameLayout>

                    <androidx.appcompat.widget.AppCompatTextView
                        style="@style/Widget.Text.Emphasize"
                        movieBehavior="@{viewModel.loading}"
                        movieBehaviorText="@{viewModel.behaviorText}"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:fontFamily="monospace"
                        android:textColor="@android:color/white"
                        app:layout_constraintBottom_toBottomOf="parent"
                        app:layout_constraintLeft_toLeftOf="parent"
                        app:layout_constraintRight_toRightOf="parent"
                        app:layout_constraintTop_toTopOf="parent"
                        tools:text="Flashing..." />

                    <FrameLayout
                        invisibleScale="@{viewModel.loading}"
                        android:layout_width="0dp"
                        android:layout_height="match_parent"
                        android:background="?attr/selectableItemBackgroundBorderless"
                        android:onClick="@{() -> viewModel.savePressed()}"
                        app:layout_constraintDimensionRatio="1:1"
                        app:layout_constraintRight_toRightOf="parent">

                        <androidx.appcompat.widget.AppCompatImageView
                            style="@style/Widget.Icon"
                            android:layout_gravity="center"
                            android:background="@android:color/transparent"
                            app:srcCompat="@drawable/ic_save_compat"
                            app:tint="@android:color/white" />

                    </FrameLayout>

                </androidx.constraintlayout.widget.ConstraintLayout>

            </androidx.appcompat.widget.Toolbar>

        </com.google.android.material.appbar.AppBarLayout>

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_behavior="@string/appbar_scrolling_view_behavior">

            <androidx.recyclerview.widget.RecyclerView
                itemBinding="@{viewModel.itemBinding}"
                items="@{viewModel.items}"
                android:id="@+id/flash_content"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical"
                scrollToLast="@{true}"
                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
                tools:listitem="@layout/item_console" />

            <com.google.android.material.card.MaterialCardView
                invisibleScale="@{!viewModel.loaded || !viewModel.canShowReboot}"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="@dimen/margin_generic"
                app:cardBackgroundColor="@color/colorSecondary"
                app:cardCornerRadius="26dp"
                app:cardPreventCornerOverlap="true"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintRight_toRightOf="parent">

                <LinearLayout
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:animateLayoutChanges="true"
                    android:background="?attr/selectableItemBackground"
                    android:gravity="center"
                    android:onClick="@{() -> viewModel.restartPressed()}"
                    android:padding="@dimen/margin_generic_half">

                    <androidx.appcompat.widget.AppCompatImageView
                        style="@style/Widget.Icon"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:background="@android:color/transparent"
                        app:srcCompat="@drawable/ic_restart"
                        app:tint="@color/colorTextTinted" />

                    <androidx.appcompat.widget.AppCompatTextView
                        style="@style/Widget.Text.Emphasize.Tinted"
                        gone="@{!viewModel.showRestartTitle}"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_marginLeft="@dimen/margin_generic_half"
                        android:paddingRight="@dimen/margin_generic_half"
                        android:text="@string/reboot" />

                </LinearLayout>

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

        </androidx.constraintlayout.widget.ConstraintLayout>

    </androidx.coordinatorlayout.widget.CoordinatorLayout>

</layout>