Merge "Added boolean flag to allow showing notification on the bottom of the...

Merge "Added boolean flag to allow showing notification on the bottom of the screen rather than on the top." into rvc-dev am: 962b460f

Change-Id: I80b20fc416c7af7096e907b2520fd8e4e34549bd

packages/CarSystemUI/res/drawable/headsup_scrim_bottom.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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.
+  -->
+<shape
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <gradient
+        android:startColor="@android:color/black"
+        android:endColor="@android:color/transparent"
+        android:angle="90" />
+</shape>

packages/CarSystemUI/res/layout/headsup_container_bottom.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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.
+  -->
+
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/notification_headsup"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/gradient_edge"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_begin="@dimen/headsup_scrim_height"/>
+
+    <View
+        android:id="@+id/scrim"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:background="@drawable/headsup_scrim_bottom"
+        app:layout_constraintBottom_toBottomOf="@+id/gradient_edge"
+        app:layout_constraintTop_toTopOf="parent"/>
+
+    <FrameLayout
+        android:id="@+id/headsup_content"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/headsup_notification_top_margin"
+        app:layout_constraintEnd_toStartOf="parent"
+        app:layout_constraintStart_toEndOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+    />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

packages/CarSystemUI/res/values/config.xml

@@ -34,6 +34,13 @@
 
     <!-- Whether heads-up notifications should be shown when shade is open. -->
     <bool name="config_enableHeadsUpNotificationWhenNotificationShadeOpen">true</bool>
+    <!-- Whether heads-up notifications should be shown on the bottom. If false, heads-up
+         notifications will be shown pushed to the top of their parent container. If true, they will
+         be shown pushed to the bottom of their parent container. If true, then should override
+         config_headsUpNotificationAnimationHelper to use a different AnimationHelper, such as
+         com.android.car.notification.headsup.animationhelper.
+         CarHeadsUpNotificationBottomAnimationHelper. -->
+    <bool name="config_showHeadsUpNotificationOnBottom">false</bool>
 
     <bool name="config_hideNavWhenKeyguardBouncerShown">true</bool>
     <bool name="config_enablePersistentDockedActivity">false</bool>

packages/CarSystemUI/src/com/android/systemui/car/notification/CarHeadsUpNotificationSystemContainer.java

@@ -60,6 +60,8 @@ public class CarHeadsUpNotificationSystemContainer implements CarHeadsUpNotifica
         mCarDeviceProvisionedController = deviceProvisionedController;
         mCarStatusBarLazy = carStatusBarLazy;
 
+        boolean showOnBottom = resources.getBoolean(R.bool.config_showHeadsUpNotificationOnBottom);
+
         WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
                 ViewGroup.LayoutParams.MATCH_PARENT,
                 WindowManager.LayoutParams.WRAP_CONTENT,
@@ -68,11 +70,13 @@ public class CarHeadsUpNotificationSystemContainer implements CarHeadsUpNotifica
                         | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
                 PixelFormat.TRANSLUCENT);
 
-        lp.gravity = Gravity.TOP;
+        lp.gravity = showOnBottom ? Gravity.BOTTOM : Gravity.TOP;
         lp.setTitle("HeadsUpNotification");
 
-        mWindow = (ViewGroup) LayoutInflater.from(context)
-                .inflate(R.layout.headsup_container, null, false);
+        int layoutId = showOnBottom
+                ? R.layout.headsup_container_bottom
+                : R.layout.headsup_container;
+        mWindow = (ViewGroup) LayoutInflater.from(context).inflate(layoutId, null, false);
         windowManager.addView(mWindow, lp);
         mWindow.setVisibility(View.INVISIBLE);
         mHeadsUpContentFrame = mWindow.findViewById(R.id.headsup_content);