DO NOT MERGE: Show an onboarding screen for priority conversations

Test: atest SystemUITests
Bug: 151843296
Change-Id: I5280cff71591f8551016b6ba00d3a579507367cb
diff --git a/packages/SystemUI/res/layout/priority_onboarding_half_shell.xml b/packages/SystemUI/res/layout/priority_onboarding_half_shell.xml
new file mode 100644
index 0000000..ccb4f78
--- /dev/null
+++ b/packages/SystemUI/res/layout/priority_onboarding_half_shell.xml
@@ -0,0 +1,194 @@
+<!--
+  ~ Copyright (C) 2020 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/onboarding_half_shell_container"
+    android:orientation="vertical"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_gravity="center_horizontal|bottom"
+    android:paddingStart="4dp"
+    android:paddingEnd="4dp"
+    >
+
+    <LinearLayout
+        android:id="@+id/half_shell"
+        android:layout_width="@dimen/qs_panel_width"
+        android:layout_height="wrap_content"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp"
+        android:paddingStart="16dp"
+        android:paddingEnd="16dp"
+        android:orientation="vertical"
+        android:gravity="bottom"
+        android:layout_gravity="center_horizontal|bottom"
+        android:background="@drawable/rounded_bg_full"
+        >
+
+        <!--  We have a known number of rows that can be shown; just design them all here -->
+        <LinearLayout
+            android:id="@+id/show_at_top_tip"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="4dp"
+            android:orientation="horizontal"
+            >
+            <ImageView
+                android:id="@+id/bell_icon"
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:layout_gravity="center_vertical"
+                android:src="@drawable/ic_notifications_alert"
+                android:tint="?android:attr/colorControlNormal" />
+
+            <TextView
+                android:id="@+id/show_at_top_text"
+                android:layout_width="wrap_content"
+                android:layout_height="48dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:gravity="center_vertical|start"
+                android:textSize="15sp"
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:text="@string/priority_onboarding_show_at_top_text"
+                style="@style/TextAppearance.NotificationInfo"
+                />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/show_avatar_tip"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="4dp"
+            android:orientation="horizontal"
+            >
+            <ImageView
+                android:id="@+id/avatar_icon"
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:layout_gravity="center_vertical"
+                android:src="@drawable/ic_person"
+                android:tint="?android:attr/colorControlNormal" />
+
+            <TextView
+                android:id="@+id/avatar_text"
+                android:layout_width="wrap_content"
+                android:layout_height="48dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:gravity="center_vertical|start"
+                android:textSize="15sp"
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:text="@string/priority_onboarding_show_avatar_text"
+                style="@style/TextAppearance.NotificationInfo"
+                />
+
+        </LinearLayout>
+
+        <!-- These rows show optionally -->
+
+        <LinearLayout
+            android:id="@+id/floating_bubble_tip"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="4dp"
+            android:orientation="horizontal"
+            >
+
+            <ImageView
+                android:id="@+id/bubble_icon"
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:layout_gravity="center_vertical"
+                android:src="@drawable/ic_create_bubble"
+                android:tint="?android:attr/colorControlNormal" />
+
+            <TextView
+                android:id="@+id/bubble_text"
+                android:layout_width="wrap_content"
+                android:layout_height="48dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:gravity="center_vertical|start"
+                android:textSize="15sp"
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:text="@string/priority_onboarding_appear_as_bubble_text"
+                style="@style/TextAppearance.NotificationInfo"
+                />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ignore_dnd_tip"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="4dp"
+            android:orientation="horizontal"
+            >
+
+            <ImageView
+                android:id="@+id/dnd_icon"
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:layout_gravity="center_vertical"
+                android:src="@drawable/moon"
+                android:tint="?android:attr/colorControlNormal" />
+
+            <TextView
+                android:id="@+id/dnd_text"
+                android:layout_width="wrap_content"
+                android:layout_height="48dp"
+                android:paddingStart="16dp"
+                android:paddingEnd="16dp"
+                android:gravity="center_vertical|start"
+                android:textSize="15sp"
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:text="@string/priority_onboarding_ignores_dnd_text"
+                style="@style/TextAppearance.NotificationInfo"
+                />
+
+        </LinearLayout>
+
+        <!-- Bottom button container -->
+        <RelativeLayout
+            android:id="@+id/button_container"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="4dp"
+            android:orientation="horizontal"
+            >
+            <TextView
+                android:id="@+id/done_button"
+                android:text="@string/priority_onboarding_done_button_title"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentEnd="true"
+                android:gravity="end|center_vertical"
+                android:minWidth="@dimen/notification_importance_toggle_size"
+                android:minHeight="@dimen/notification_importance_toggle_size"
+                android:maxWidth="125dp"
+                style="@style/TextAppearance.NotificationInfo.Button"/>
+
+        </RelativeLayout>
+
+    </LinearLayout>
+</FrameLayout>