Add swipe-to-dismiss notifications in popup menu.

- Next secondary icon animates up to replace dismissed main notification
- Add padding around main notification so it always aligns with the
  straight edges of the view (not the rounded corners); looks more
  dismissable
- Notification view collapses as notifications are dismissed
- To mimic system notification behavior, we copy SwipeHelper,
  FlingAnimationUtils, and Interpolators. We also apply elevation
  to notifications and reveal a darker color beneath when dismissing.

Bug: 32410600
Change-Id: I9fbf10e73bb4996f17ef061c856efb013967d972

1 files changed, 61 insertions, 0 deletions

diff --git a/res/layout/notification.xml b/res/layout/notification.xml
new file mode 100644
index 000000000..d828c4a36
--- /dev/null
+++ b/res/layout/notification.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 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.
+-->
+
+<com.android.launcher3.notification.NotificationItemView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/notification_view"
+    android:layout_width="@dimen/bg_pill_width"
+    android:layout_height="wrap_content"
+    android:elevation="@dimen/deep_shortcuts_elevation"
+    android:background="@drawable/bg_white_pill">
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        android:clipChildren="false">
+
+        <TextView
+            android:id="@+id/header"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/notification_footer_collapsed_height"
+            android:gravity="center_vertical"
+            android:textAlignment="center"
+            android:text="@string/notifications_header"
+            android:elevation="@dimen/notification_elevation"
+            android:background="@drawable/bg_white_pill_top" />
+
+        <View
+            android:id="@+id/divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/notification_divider_height"
+            android:layout_below="@id/header" />
+
+        <include layout="@layout/notification_main"
+            android:id="@+id/main_view"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/bg_pill_height"
+            android:layout_below="@id/divider" />
+
+        <include layout="@layout/notification_footer"
+            android:id="@+id/footer"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/notification_footer_height"
+            android:layout_below="@id/main_view" />
+
+    </RelativeLayout>
+
+</com.android.launcher3.notification.NotificationItemView>