FairEmail/app/src/main/res/layout/activity_widget_unified.xml

<?xml version="1.0" encoding="utf-8"?>
<eu.faircode.email.ScrollViewEx xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="12dp"
    android:scrollbarStyle="outsideOverlay">

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

        <eu.faircode.email.FixedTextView
            android:id="@+id/tvAccount"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/title_widget_account"
            android:textAppearance="@style/TextAppearance.AppCompat.Small"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <Spinner
            android:id="@+id/spAccount"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/tvAccount" />

        <eu.faircode.email.FixedTextView
            android:id="@+id/tvFolder"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:text="@string/title_widget_folder"
            android:textAppearance="@style/TextAppearance.AppCompat.Small"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/spAccount" />

        <Spinner
            android:id="@+id/spFolder"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/tvFolder" />

        <CheckBox
            android:id="@+id/cbUnseen"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:text="@string/title_widget_unseen"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/spFolder" />

        <CheckBox
            android:id="@+id/cbFlagged"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:text="@string/title_widget_flagged"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/cbUnseen" />

        <CheckBox
            android:id="@+id/cbSemiTransparent"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:checked="true"
            android:text="@string/title_widget_semi_transparent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/cbFlagged" />

        <eu.faircode.email.ViewButtonColor
            android:id="@+id/btnColor"
            style="?android:attr/buttonStyleSmall"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:paddingHorizontal="6dp"
            android:tag="disable"
            android:text="@string/title_widget_background"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/cbSemiTransparent" />

        <eu.faircode.email.FixedTextView
            android:id="@+id/tvFontSize"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:text="@string/title_widget_font_size"
            android:textAppearance="@style/TextAppearance.AppCompat.Small"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/btnColor" />

        <Spinner
            android:id="@+id/spFontSize"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/tvFontSize" />

        <eu.faircode.email.FixedTextView
            android:id="@+id/tvPadding"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:text="@string/title_widget_padding"
            android:textAppearance="@style/TextAppearance.AppCompat.Small"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/spFontSize" />

        <Spinner
            android:id="@+id/spPadding"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/tvPadding" />

        <Button
            android:id="@+id/btnSave"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:text="@string/title_save"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/spPadding" />

        <eu.faircode.email.ContentLoadingProgressBar
            android:id="@+id/pbWait"
            style="@style/Base.Widget.AppCompat.ProgressBar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:indeterminate="true"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.constraintlayout.widget.Group
            android:id="@+id/grpReady"
            android:layout_width="0dp"
            android:layout_height="0dp"
            app:constraint_referenced_ids="
        tvAccount,spAccount,tvFolder,spFolder,
        cbUnseen,cbFlagged,
        cbSemiTransparent,btnColor,
        tvFontSize,spFontSize,tvPadding,spPadding,btnSave" />
    </androidx.constraintlayout.widget.ConstraintLayout>
</eu.faircode.email.ScrollViewEx>