From 2463594fdd27fa3bef21b3309db30a9706a11dba Mon Sep 17 00:00:00 2001
From: Jacqueline Bronger <bronger@google.com>
Date: Mon, 17 May 2021 08:52:11 +0000
Subject: [PATCH] Add a tv bottom sheet to the SystemUI.

Bug: 186720017
Test: manual
Change-Id: I1661f4ad1c07ba80223556f8e864a7e1b7f3678c
---
 ...ottom_sheet_button_state_list_animator.xml | 52 ++++++++++
 .../res/anim/tv_bottom_sheet_enter.xml        | 23 +++++
 .../res/anim/tv_bottom_sheet_exit.xml         | 23 +++++
 .../bottom_sheet_button_background_color.xml  | 21 ++++
 .../color/bottom_sheet_button_text_color.xml  | 21 ++++
 .../res/drawable/bottom_sheet_background.xml  | 20 ++++
 .../bottom_sheet_background_with_blur.xml     | 20 ++++
 .../bottom_sheet_button_background.xml        | 20 ++++
 .../SystemUI/res/layout/tv_bottom_sheet.xml   | 87 ++++++++++++++++
 .../SystemUI/res/values-television/colors.xml | 15 +++
 .../SystemUI/res/values-television/dimens.xml | 23 +++++
 .../SystemUI/res/values-television/styles.xml | 30 ++++++
 .../systemui/tv/TvBottomSheetActivity.java    | 98 +++++++++++++++++++
 13 files changed, 453 insertions(+)
 create mode 100644 packages/SystemUI/res/anim/tv_bottom_sheet_button_state_list_animator.xml
 create mode 100644 packages/SystemUI/res/anim/tv_bottom_sheet_enter.xml
 create mode 100644 packages/SystemUI/res/anim/tv_bottom_sheet_exit.xml
 create mode 100644 packages/SystemUI/res/color/bottom_sheet_button_background_color.xml
 create mode 100644 packages/SystemUI/res/color/bottom_sheet_button_text_color.xml
 create mode 100644 packages/SystemUI/res/drawable/bottom_sheet_background.xml
 create mode 100644 packages/SystemUI/res/drawable/bottom_sheet_background_with_blur.xml
 create mode 100644 packages/SystemUI/res/drawable/bottom_sheet_button_background.xml
 create mode 100644 packages/SystemUI/res/layout/tv_bottom_sheet.xml
 create mode 100644 packages/SystemUI/src/com/android/systemui/tv/TvBottomSheetActivity.java

diff --git a/packages/SystemUI/res/anim/tv_bottom_sheet_button_state_list_animator.xml b/packages/SystemUI/res/anim/tv_bottom_sheet_button_state_list_animator.xml
new file mode 100644
index 0000000000000..fc3b4ed6eecb6
--- /dev/null
+++ b/packages/SystemUI/res/anim/tv_bottom_sheet_button_state_list_animator.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+
+<selector
+    xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_focused="true">
+        <set>
+            <objectAnimator
+                android:duration="200"
+                android:propertyName="scaleX"
+                android:valueFrom="1.0"
+                android:valueTo="@dimen/bottom_sheet_button_selection_scaled"
+                android:valueType="floatType"/>
+            <objectAnimator
+                android:duration="200"
+                android:propertyName="scaleY"
+                android:valueFrom="1.0"
+                android:valueTo="@dimen/bottom_sheet_button_selection_scaled"
+                android:valueType="floatType"/>
+        </set>
+    </item>
+    <item android:state_focused="false">
+        <set>
+            <objectAnimator
+                android:duration="200"
+                android:propertyName="scaleX"
+                android:valueFrom="@dimen/bottom_sheet_button_selection_scaled"
+                android:valueTo="1.0"
+                android:valueType="floatType"/>
+            <objectAnimator
+                android:duration="200"
+                android:propertyName="scaleY"
+                android:valueFrom="@dimen/bottom_sheet_button_selection_scaled"
+                android:valueTo="1.0"
+                android:valueType="floatType"/>
+        </set>
+    </item>
+</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/anim/tv_bottom_sheet_enter.xml b/packages/SystemUI/res/anim/tv_bottom_sheet_enter.xml
new file mode 100644
index 0000000000000..cace36d68b43b
--- /dev/null
+++ b/packages/SystemUI/res/anim/tv_bottom_sheet_enter.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+     android:interpolator="@android:interpolator/decelerate_quint">
+    <translate android:fromYDelta="100%"
+               android:toYDelta="0"
+               android:duration="900"/>
+</set>
\ No newline at end of file
diff --git a/packages/SystemUI/res/anim/tv_bottom_sheet_exit.xml b/packages/SystemUI/res/anim/tv_bottom_sheet_exit.xml
new file mode 100644
index 0000000000000..f7efe7cd25847
--- /dev/null
+++ b/packages/SystemUI/res/anim/tv_bottom_sheet_exit.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+     android:interpolator="@android:interpolator/decelerate_quint">
+    <translate android:fromYDelta="0"
+               android:toYDelta="100%"
+               android:duration="500"/>
+</set>
\ No newline at end of file
diff --git a/packages/SystemUI/res/color/bottom_sheet_button_background_color.xml b/packages/SystemUI/res/color/bottom_sheet_button_background_color.xml
new file mode 100644
index 0000000000000..9b0bae09b3261
--- /dev/null
+++ b/packages/SystemUI/res/color/bottom_sheet_button_background_color.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_focused="true"
+          android:color="@color/bottom_sheet_button_background_color_focused"/>
+    <item android:color="@color/bottom_sheet_button_background_color_unfocused"/>
+</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/color/bottom_sheet_button_text_color.xml b/packages/SystemUI/res/color/bottom_sheet_button_text_color.xml
new file mode 100644
index 0000000000000..05248f17097bc
--- /dev/null
+++ b/packages/SystemUI/res/color/bottom_sheet_button_text_color.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_focused="true"
+          android:color="@color/bottom_sheet_button_text_color_focused"/>
+    <item android:color="@color/bottom_sheet_button_text_color_unfocused"/>
+</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/drawable/bottom_sheet_background.xml b/packages/SystemUI/res/drawable/bottom_sheet_background.xml
new file mode 100644
index 0000000000000..87850a0d00ece
--- /dev/null
+++ b/packages/SystemUI/res/drawable/bottom_sheet_background.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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">
+    <solid android:color="@color/bottom_sheet_background_color"/>
+    <corners android:radius="@dimen/bottom_sheet_corner_radius"/>
+</shape>
\ No newline at end of file
diff --git a/packages/SystemUI/res/drawable/bottom_sheet_background_with_blur.xml b/packages/SystemUI/res/drawable/bottom_sheet_background_with_blur.xml
new file mode 100644
index 0000000000000..cd2aa9c751d9f
--- /dev/null
+++ b/packages/SystemUI/res/drawable/bottom_sheet_background_with_blur.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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">
+    <solid android:color="@color/bottom_sheet_background_color_with_blur"/>
+    <corners android:radius="@dimen/bottom_sheet_corner_radius"/>
+</shape>
\ No newline at end of file
diff --git a/packages/SystemUI/res/drawable/bottom_sheet_button_background.xml b/packages/SystemUI/res/drawable/bottom_sheet_button_background.xml
new file mode 100644
index 0000000000000..585a6bc771f7c
--- /dev/null
+++ b/packages/SystemUI/res/drawable/bottom_sheet_button_background.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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">
+    <solid android:color="@color/bottom_sheet_button_background_color"/>
+    <corners android:radius="@dimen/bottom_sheet_button_corner_radius"/>
+</shape>
\ No newline at end of file
diff --git a/packages/SystemUI/res/layout/tv_bottom_sheet.xml b/packages/SystemUI/res/layout/tv_bottom_sheet.xml
new file mode 100644
index 0000000000000..b69cdc76ae40e
--- /dev/null
+++ b/packages/SystemUI/res/layout/tv_bottom_sheet.xml
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/bottom_sheet"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center_vertical"
+    android:orientation="horizontal"
+    android:minHeight="@dimen/bottom_sheet_min_height"
+    android:paddingHorizontal="@dimen/bottom_sheet_padding_horizontal"
+    android:paddingVertical="@dimen/bottom_sheet_padding_vertical">
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:minWidth="80dp"
+        android:gravity="center"
+        android:orientation="horizontal">
+        <ImageView
+            android:id="@+id/bottom_sheet_icon"
+            android:layout_width="@dimen/bottom_sheet_icon_size"
+            android:layout_height="@dimen/bottom_sheet_icon_size"
+            android:layout_gravity="center_vertical"
+            android:tint="@color/bottom_sheet_icon_color"/>
+        <ImageView
+            android:id="@+id/bottom_sheet_second_icon"
+            android:layout_width="@dimen/bottom_sheet_icon_size"
+            android:layout_height="@dimen/bottom_sheet_icon_size"
+            android:layout_marginStart="@dimen/bottom_sheet_icon_margin"
+            android:layout_gravity="center_vertical"
+            android:tint="@color/bottom_sheet_icon_color"/>
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="@dimen/bottom_sheet_padding_horizontal"
+        android:layout_weight="1"
+        android:orientation="vertical">
+        <TextView
+            android:id="@+id/bottom_sheet_title"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/bottom_sheet_title_margin_bottom"
+            android:textAppearance="@style/BottomSheet.TitleText"/>
+
+        <TextView
+            android:id="@+id/bottom_sheet_body"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/bottom_sheet_details_margin_bottom"
+            android:textAppearance="@style/BottomSheet.BodyText" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_width="@dimen/bottom_sheet_actions_width"
+        android:layout_height="match_parent"
+        android:gravity="center">
+        <Button
+            android:id="@+id/bottom_sheet_positive_button"
+            style="@style/BottomSheet.ActionItem" />
+        <Space
+            android:layout_width="0dp"
+            android:layout_height="@dimen/bottom_sheet_actions_spacing" />
+        <Button
+            android:id="@+id/bottom_sheet_negative_button"
+            style="@style/BottomSheet.ActionItem" />
+    </LinearLayout>
+
+</LinearLayout>
diff --git a/packages/SystemUI/res/values-television/colors.xml b/packages/SystemUI/res/values-television/colors.xml
index e5f3b4768fe24..e13c42e9ca3d5 100644
--- a/packages/SystemUI/res/values-television/colors.xml
+++ b/packages/SystemUI/res/values-television/colors.xml
@@ -19,4 +19,19 @@
 <resources>
     <color name="volume_dialog_background_color">#E61F232B</color>
     <color name="volume_dialog_background_color_above_blur">#C71F232B</color>
+
+    <color name="bottom_sheet_icon_color">#D2E3FC</color>
+
+    <color name="bottom_sheet_title_color">#E8F0FE</color>
+    <color name="bottom_sheet_body_color">#D2E3FC</color>
+
+    <color name="bottom_sheet_background_color">#1F232C</color>
+    <color name="bottom_sheet_background_color_with_blur">#AA1A2734</color>
+
+    <color name="bottom_sheet_button_background_color_focused">#E8F0FE</color>
+    <color name="bottom_sheet_button_background_color_unfocused">#0FE8EAED</color>
+
+    <color name="bottom_sheet_button_text_color_focused">#DB202124</color>
+    <color name="bottom_sheet_button_text_color_unfocused">#B5E8EAED</color>
+
 </resources>
diff --git a/packages/SystemUI/res/values-television/dimens.xml b/packages/SystemUI/res/values-television/dimens.xml
index 7626db93dd762..3a1a3d923fcc1 100644
--- a/packages/SystemUI/res/values-television/dimens.xml
+++ b/packages/SystemUI/res/values-television/dimens.xml
@@ -21,4 +21,27 @@
     <dimen name="privacy_chip_icon_margin">3dp</dimen>
     <dimen name="privacy_chip_icon_padding">8dp</dimen>
     <dimen name="privacy_chip_icon_size">13dp</dimen>
+
+    <dimen name="bottom_sheet_padding_horizontal">32dp</dimen>
+    <dimen name="bottom_sheet_padding_vertical">24dp</dimen>
+
+    <dimen name="bottom_sheet_icon_size">42dp</dimen>
+    <dimen name="bottom_sheet_icon_margin">8dp</dimen>
+    <dimen name="bottom_sheet_title_margin_bottom">18dp</dimen>
+    <dimen name="bottom_sheet_details_margin_bottom">8dp</dimen>
+
+    <dimen name="bottom_sheet_actions_width">296dp</dimen>
+    <dimen name="bottom_sheet_actions_spacing">12dp</dimen>
+    <item name="bottom_sheet_button_selection_scaled" format="float" type="dimen">1.1</item>
+    <dimen name="bottom_sheet_button_width">232dp</dimen>
+    <dimen name="bottom_sheet_button_padding_horizontal">20dp</dimen>
+    <dimen name="bottom_sheet_button_padding_vertical">16dp</dimen>
+
+    <dimen name="bottom_sheet_corner_radius">24dp</dimen>
+    <dimen name="bottom_sheet_button_corner_radius">10dp</dimen>
+
+    <dimen name="bottom_sheet_min_height">208dp</dimen>
+    <dimen name="bottom_sheet_margin">24dp</dimen>
+    <dimen name="bottom_sheet_background_blur_radius">120dp</dimen>
+
 </resources>
\ No newline at end of file
diff --git a/packages/SystemUI/res/values-television/styles.xml b/packages/SystemUI/res/values-television/styles.xml
index 00217fb39b93b..0fb789863bd98 100644
--- a/packages/SystemUI/res/values-television/styles.xml
+++ b/packages/SystemUI/res/values-television/styles.xml
@@ -28,4 +28,34 @@
         <item name="android:textColorPrimaryInverse">@color/tv_volume_dialog_accent</item>
         <item name="android:dialogCornerRadius">@dimen/volume_dialog_panel_width_half</item>
     </style>
+
+    <style name="BottomSheet" parent="Theme.Leanback">
+        <item name="android:windowIsFloating">true</item>
+        <item name="android:windowActivityTransitions">true</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:backgroundDimAmount">0.2</item>
+    </style>
+
+    <style name="BottomSheet.TitleText">
+        <item name="android:textSize">28sp</item>
+        <item name="android:textColor">@color/bottom_sheet_title_color</item>
+    </style>
+
+    <style name="BottomSheet.BodyText">
+        <item name="android:textSize">16sp</item>
+        <item name="android:textColor">@color/bottom_sheet_body_color</item>
+    </style>
+
+    <style name="BottomSheet.ActionItem">
+        <item name="android:layout_width">@dimen/bottom_sheet_button_width</item>
+        <item name="android:layout_height">wrap_content</item>
+        <item name="android:gravity">left|center_vertical</item>
+        <item name="android:textSize">16sp</item>
+        <item name="android:textColor">@color/bottom_sheet_button_text_color</item>
+        <item name="android:background">@drawable/bottom_sheet_button_background</item>
+        <item name="android:paddingHorizontal">@dimen/bottom_sheet_button_padding_horizontal</item>
+        <item name="android:paddingVertical">@dimen/bottom_sheet_button_padding_vertical</item>
+        <item name="android:stateListAnimator">@anim/tv_bottom_sheet_button_state_list_animator</item>
+    </style>
 </resources>
diff --git a/packages/SystemUI/src/com/android/systemui/tv/TvBottomSheetActivity.java b/packages/SystemUI/src/com/android/systemui/tv/TvBottomSheetActivity.java
new file mode 100644
index 0000000000000..2b7a33260248e
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/tv/TvBottomSheetActivity.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+package com.android.systemui.tv;
+
+import android.app.Activity;
+import android.graphics.PixelFormat;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.util.DisplayMetrics;
+import android.util.Log;
+import android.view.Gravity;
+import android.view.WindowManager;
+
+import com.android.systemui.R;
+
+import java.util.function.Consumer;
+
+/**
+ * Generic bottom sheet with up to two icons in the beginning and two buttons.
+ */
+public abstract class TvBottomSheetActivity extends Activity {
+
+    private static final String TAG = TvBottomSheetActivity.class.getSimpleName();
+    private Drawable mBackgroundWithBlur;
+    private Drawable mBackgroundWithoutBlur;
+
+    private final Consumer<Boolean> mBlurConsumer = this::onBlurChanged;
+
+    private void onBlurChanged(boolean enabled) {
+        Log.v(TAG, "blur enabled: " + enabled);
+        getWindow().setBackgroundDrawable(enabled ? mBackgroundWithBlur : mBackgroundWithoutBlur);
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.tv_bottom_sheet);
+
+        overridePendingTransition(R.anim.tv_bottom_sheet_enter, 0);
+
+        mBackgroundWithBlur = getResources()
+                .getDrawable(R.drawable.bottom_sheet_background_with_blur);
+        mBackgroundWithoutBlur = getResources().getDrawable(R.drawable.bottom_sheet_background);
+
+        DisplayMetrics metrics = getResources().getDisplayMetrics();
+        int screenWidth = metrics.widthPixels;
+        int screenHeight = metrics.heightPixels;
+        int marginPx = getResources().getDimensionPixelSize(R.dimen.bottom_sheet_margin);
+
+        WindowManager.LayoutParams windowParams = getWindow().getAttributes();
+        windowParams.width = screenWidth - marginPx * 2;
+        windowParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
+        windowParams.gravity = Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL;
+        windowParams.horizontalMargin = 0f;
+        windowParams.verticalMargin = (float) marginPx / screenHeight;
+        windowParams.format = PixelFormat.TRANSPARENT;
+        windowParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
+        windowParams.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
+        windowParams.flags |= WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
+        getWindow().setAttributes(windowParams);
+        getWindow().setElevation(getWindow().getElevation() + 5);
+        getWindow().setBackgroundBlurRadius(getResources().getDimensionPixelSize(
+                R.dimen.bottom_sheet_background_blur_radius));
+    }
+
+    @Override
+    public void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        getWindowManager().addCrossWindowBlurEnabledListener(mBlurConsumer);
+    }
+
+    @Override
+    public void onDetachedFromWindow() {
+        getWindowManager().removeCrossWindowBlurEnabledListener(mBlurConsumer);
+        super.onDetachedFromWindow();
+    }
+
+    @Override
+    public void finish() {
+        super.finish();
+        overridePendingTransition(0, R.anim.tv_bottom_sheet_exit);
+    }
+
+}