habitica-android/Habitica/res/layout/dialog_habitica_base.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="320dp"
    android:layout_height="wrap_content"
    tools:background="@color/black"
    android:minWidth="300dp"
    android:gravity="center_horizontal"
    android:layout_gravity="center_horizontal"
    android:paddingTop="@dimen/spacing_medium"
    android:paddingBottom="@dimen/spacing_medium">
    <LinearLayout
        android:id="@+id/dialog_container"
        android:minWidth="300dp"
        android:layout_width="320dp"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:background="@drawable/alert_dialog_background"
        android:paddingBottom="24dp"
        android:paddingTop="40dp"
        android:gravity="center_horizontal">
        <TextView
            android:id="@+id/titleTextView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:paddingBottom="@dimen/spacing_large"
            tools:text="This is the title"
            android:visibility="gone"
            tools:visibility="visible"
            android:layout_marginStart="@dimen/alert_side_padding"
            android:layout_marginEnd="@dimen/alert_side_padding"
            style="@style/Headline6"
            />

        <TextView
            android:id="@+id/messageTextView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:visibility="gone"
            tools:visibility="visible"
            tools:text="This is the message"
            android:paddingBottom="@dimen/spacing_medium"
            android:paddingStart="@dimen/alert_side_padding"
            android:paddingEnd="@dimen/alert_side_padding"
            android:textColor="?textColorSecondary"
            style="@style/Body2"
            />
        <androidx.core.widget.NestedScrollView
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1">
            <FrameLayout
                android:id="@+id/content_view"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:paddingStart="@dimen/alert_side_padding"
                android:paddingEnd="@dimen/alert_side_padding"/>
        </androidx.core.widget.NestedScrollView>
        <View
            android:id="@+id/scrolling_separator"
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="@color/gray_600"
            android:visibility="gone"/>
        <LinearLayout
            android:id="@+id/buttons_wrapper"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingTop="20dp"
            android:orientation="vertical"
            android:gravity="center_horizontal"
            android:divider="@drawable/alert_dialog_button_divider"
            android:showDividers="middle"
            android:paddingStart="@dimen/alert_side_padding"
            android:paddingEnd="@dimen/alert_side_padding"/>
        <TextView
            android:id="@+id/notice_text_view"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="@dimen/alert_side_padding"
            android:layout_marginEnd="@dimen/alert_side_padding"
            android:paddingTop="@dimen/spacing_medium"
            android:paddingBottom="@dimen/spacing_medium"
            android:paddingStart="@dimen/spacing_large"
            android:paddingEnd="@dimen/spacing_large"
            android:background="@drawable/layout_rounded_bg_gray_700"
            android:visibility="gone"
            android:gravity="center"
            style="@style/Caption3"
            android:textColor="@color/gray_100"
            tools:text="This is a small label"
            tools:visibility="visible"/>
    </LinearLayout>
    <Button
        android:id="@+id/close_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/close"
        android:background="@drawable/alert_dialog_background"
        android:layout_marginTop="@dimen/spacing_large"
        android:visibility="gone"
        tools:visibility="visible"
        android:textSize="16sp"
        android:textAllCaps="false"
        android:textColor="?colorAccent"
        />
</LinearLayout>