[startop] Add an app for testing startup performance

This CL includes a simple app for testing aspects of startup performance. It
will probably gain new activities as we focus on different parts in
particular. Currently it has an empty activity and an activity that focuses on
layout inflation.

Test: mma, adb install, adb shell start (see README.md for exact commands)
Change-Id: I4e98994f0c25ce61a89d13f86eda2320a1fdcafa

22 files changed, 604 insertions, 0 deletions

diff --git a/startop/apps/test/Android.bp b/startop/apps/test/Android.bp
new file mode 100644
index 000000000000..3adc05e2cab9
--- /dev/null
+++ b/startop/apps/test/Android.bp
@@ -0,0 +1,23 @@
+//
+// Copyright (C) 2019 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.
+//
+
+android_app {
+    name: "startop_test_app",
+    srcs: [
+        "src/EmptyActivity.java",
+        "src/LayoutInflation.java",
+    ],
+}
diff --git a/startop/apps/test/AndroidManifest.xml b/startop/apps/test/AndroidManifest.xml
new file mode 100644
index 000000000000..6b08118b73b7
--- /dev/null
+++ b/startop/apps/test/AndroidManifest.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2019 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.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.startop.test">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true">
+        <activity android:name=".EmptyActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <activity android:name=".LayoutInflation" android:exported="true" />
+    </application>
+
+</manifest>
diff --git a/startop/apps/test/README.md b/startop/apps/test/README.md
new file mode 100644
index 000000000000..53c184bdd1c8
--- /dev/null
+++ b/startop/apps/test/README.md
@@ -0,0 +1,26 @@
+This directory contains a simple Android app that is meant to help in doing
+controlled startup performance experiments.
+
+This app is structured as a number of activities that each are useful for a
+different aspect of startup testing.
+
+# Activities
+
+## EmptyActivity
+
+This is the simplest possible Android activity. Starting this exercises only the
+system parts of startup without any app-specific behavior.
+
+    adb shell am start -n com.android.startop.test/.EmptyActivity
+
+## LayoutInflation
+
+This activity inflates a reasonably complex layout to see the impact of layout
+inflation. The layout is supported by the viewcompiler, so this can be used for
+testing precompiled layout performance.
+
+The activity adds an `inflate#activity_main` slice to atrace around the time
+spent in view inflation to make it easier to focus on the time spent in view
+inflation.
+
+    adb shell am start -n com.android.startop.test/.LayoutInflation
diff --git a/startop/apps/test/res/drawable-v24/ic_launcher_foreground.xml b/startop/apps/test/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 000000000000..c7bd21dbd869
--- /dev/null
+++ b/startop/apps/test/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>
diff --git a/startop/apps/test/res/drawable/ic_launcher_background.xml b/startop/apps/test/res/drawable/ic_launcher_background.xml
new file mode 100644
index 000000000000..d5fccc538c17
--- /dev/null
+++ b/startop/apps/test/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+</vector>
diff --git a/startop/apps/test/res/layout/activity_main.xml b/startop/apps/test/res/layout/activity_main.xml
new file mode 100644
index 000000000000..16f5641f2325
--- /dev/null
+++ b/startop/apps/test/res/layout/activity_main.xml
@@ -0,0 +1,230 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity" >
+
+    <LinearLayout
+        android:layout_width="0dp"
+        android:layout_weight="0.5"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <CheckBox
+            android:id="@+id/checkBox5"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="CheckBox" />
+
+        <EditText
+            android:id="@+id/myEditText"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="EditText" />
+
+        <EditText
+            android:id="@+id/myEditText2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="EditText" />
+
+        <Button
+            android:id="@+id/myButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Button" />
+
+        <Button
+            android:id="@+id/myButton2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Button" />
+
+        <ProgressBar
+            android:id="@+id/progressBar"
+            style="?android:attr/progressBarStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <CheckBox
+            android:id="@+id/checkBox2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="CheckBox" />
+
+        <RadioButton
+            android:id="@+id/radioButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="RadioButton" />
+
+        <CheckedTextView
+            android:id="@+id/checkedTextView2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="CheckedTextView" />
+
+        <TextView
+            android:id="@+id/textView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="TextView" />
+
+        <ToggleButton
+            android:id="@+id/toggleButton"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="ToggleButton" />
+
+        <Switch
+            android:id="@+id/switch1"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Switch" />
+
+        <CheckBox
+            android:id="@+id/checkBox3"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="CheckBox" />
+
+        <CheckBox
+            android:id="@+id/checkBox4"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="CheckBox" />
+
+        <EditText
+            android:id="@+id/editText2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:ems="10"
+            android:inputType="textPassword" />
+
+        <RadioButton
+            android:id="@+id/radioButton2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="RadioButton" />
+
+        <EditText
+            android:id="@+id/editText3"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:ems="10"
+            android:inputType="numberDecimal" />
+
+        <SearchView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" >
+
+        </SearchView>
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="0dp"
+        android:layout_weight="0.5"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <Button
+            android:id="@+id/myButton3"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Button" />
+
+        <Button
+            android:id="@+id/myButton4"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Button" />
+
+        <Button
+            android:id="@+id/button14"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Button" />
+
+        <EditText
+            android:id="@+id/myEditText3"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="EditText" />
+
+        <Button
+            android:id="@+id/button"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Button" />
+
+        <EditText
+            android:id="@+id/myEditText4"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="EditText" />
+
+        <ToggleButton
+            android:id="@+id/toggleButton2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="ToggleButton" />
+
+        <ToggleButton
+            android:id="@+id/toggleButton5"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="ToggleButton" />
+
+        <ToggleButton
+            android:id="@+id/toggleButton4"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="ToggleButton" />
+
+        <ToggleButton
+            android:id="@+id/toggleButton3"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="ToggleButton" />
+
+        <ProgressBar
+            android:id="@+id/progressBar2"
+            style="?android:attr/progressBarStyleHorizontal"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <EditText
+            android:id="@+id/editText"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:ems="10"
+            android:inputType="date" />
+
+        <CheckedTextView
+            android:id="@+id/checkedTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="CheckedTextView" />
+
+        <SeekBar
+            android:id="@+id/seekBar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+        <ToggleButton
+            android:id="@+id/toggleButton6"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="ToggleButton" />
+
+        <ToggleButton
+            android:id="@+id/toggleButton7"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="ToggleButton" />
+
+    </LinearLayout>
+</LinearLayout>
diff --git a/startop/apps/test/res/mipmap-anydpi-v26/ic_launcher.xml b/startop/apps/test/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 000000000000..eca70cfe52ea
--- /dev/null
+++ b/startop/apps/test/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/startop/apps/test/res/mipmap-anydpi-v26/ic_launcher_round.xml b/startop/apps/test/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 000000000000..eca70cfe52ea
--- /dev/null
+++ b/startop/apps/test/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/startop/apps/test/res/mipmap-hdpi/ic_launcher.png b/startop/apps/test/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 000000000000..a2f5908281d0
--- /dev/null
+++ b/startop/apps/test/res/mipmap-hdpi/ic_launcher.png
diff --git a/startop/apps/test/res/mipmap-hdpi/ic_launcher_round.png b/startop/apps/test/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 000000000000..1b5239980811
--- /dev/null
+++ b/startop/apps/test/res/mipmap-hdpi/ic_launcher_round.png
diff --git a/startop/apps/test/res/mipmap-mdpi/ic_launcher.png b/startop/apps/test/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 000000000000..ff10afd6e182
--- /dev/null
+++ b/startop/apps/test/res/mipmap-mdpi/ic_launcher.png
diff --git a/startop/apps/test/res/mipmap-mdpi/ic_launcher_round.png b/startop/apps/test/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 000000000000..115a4c768a20
--- /dev/null
+++ b/startop/apps/test/res/mipmap-mdpi/ic_launcher_round.png
diff --git a/startop/apps/test/res/mipmap-xhdpi/ic_launcher.png b/startop/apps/test/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 000000000000..dcd3cd808335
--- /dev/null
+++ b/startop/apps/test/res/mipmap-xhdpi/ic_launcher.png
diff --git a/startop/apps/test/res/mipmap-xhdpi/ic_launcher_round.png b/startop/apps/test/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 000000000000..459ca609d3ae
--- /dev/null
+++ b/startop/apps/test/res/mipmap-xhdpi/ic_launcher_round.png
diff --git a/startop/apps/test/res/mipmap-xxhdpi/ic_launcher.png b/startop/apps/test/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 000000000000..8ca12fe024be
--- /dev/null
+++ b/startop/apps/test/res/mipmap-xxhdpi/ic_launcher.png
diff --git a/startop/apps/test/res/mipmap-xxhdpi/ic_launcher_round.png b/startop/apps/test/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 000000000000..8e19b410a1b1
--- /dev/null
+++ b/startop/apps/test/res/mipmap-xxhdpi/ic_launcher_round.png
diff --git a/startop/apps/test/res/mipmap-xxxhdpi/ic_launcher.png b/startop/apps/test/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 000000000000..b824ebdd48db
--- /dev/null
+++ b/startop/apps/test/res/mipmap-xxxhdpi/ic_launcher.png
diff --git a/startop/apps/test/res/mipmap-xxxhdpi/ic_launcher_round.png b/startop/apps/test/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 000000000000..4c19a13c239c
--- /dev/null
+++ b/startop/apps/test/res/mipmap-xxxhdpi/ic_launcher_round.png
diff --git a/startop/apps/test/res/values/colors.xml b/startop/apps/test/res/values/colors.xml
new file mode 100644
index 000000000000..3ab3e9cbce07
--- /dev/null
+++ b/startop/apps/test/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>
diff --git a/startop/apps/test/res/values/strings.xml b/startop/apps/test/res/values/strings.xml
new file mode 100644
index 000000000000..18419b58fad0
--- /dev/null
+++ b/startop/apps/test/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Startup Testing Swiss Army Knife</string>
+</resources>
diff --git a/startop/apps/test/src/EmptyActivity.java b/startop/apps/test/src/EmptyActivity.java
new file mode 100644
index 000000000000..5202938686c0
--- /dev/null
+++ b/startop/apps/test/src/EmptyActivity.java
@@ -0,0 +1,26 @@
+//
+// Copyright (C) 2019 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.startop.test;
+
+import android.app.Activity;
+
+/**
+ * The simplest possible Android activity, for testing startup with no
+ * app-specific behavior.
+ */
+public class EmptyActivity extends Activity {
+}
diff --git a/startop/apps/test/src/LayoutInflation.java b/startop/apps/test/src/LayoutInflation.java
new file mode 100644
index 000000000000..daa4e4556f8e
--- /dev/null
+++ b/startop/apps/test/src/LayoutInflation.java
@@ -0,0 +1,39 @@
+//
+// Copyright (C) 2019 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.startop.test;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Trace;
+import android.view.LayoutInflater;
+import android.view.View;
+
+/**
+ * This activity inflates a reasonably complex layout to see the impact of
+ * layout inflation. The layout is supported by the viewcompiler, so this can be
+ * used for testing precompiled layout performance.
+ */
+public class LayoutInflation extends Activity {
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        LayoutInflater inflater = LayoutInflater.from(this);
+        Trace.beginSection("inflate layout:activity_main");
+        View view = inflater.inflate(R.layout.activity_main, /*root=*/null);
+        Trace.endSection();
+        setContentView(view);
+    }
+}