diff --git a/samples/demo/haptic-assessment/Android.bp b/samples/demo/haptic-assessment/Android.bp
new file mode 100644
index 0000000..1c00609
--- /dev/null
+++ b/samples/demo/haptic-assessment/Android.bp
@@ -0,0 +1,34 @@
+//
+// 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.
+//
+
+android_app {
+    name: "HapticAssessment",
+    manifest: "AndroidManifest.xml",
+    sdk_version: "current",
+    min_sdk_version: "29",
+    srcs: [
+        "src/**/*.java",
+        "src/**/*.kt",
+    ],
+    static_libs: [
+        "androidx.appcompat_appcompat",
+        "androidx-constraintlayout_constraintlayout",
+    ],
+    resource_dirs: [
+        "res",
+    ],
+    dxflags: ["--multi-dex"],
+}
\ No newline at end of file
diff --git a/samples/demo/haptic-assessment/AndroidManifest.xml b/samples/demo/haptic-assessment/AndroidManifest.xml
new file mode 100644
index 0000000..251646e
--- /dev/null
+++ b/samples/demo/haptic-assessment/AndroidManifest.xml
@@ -0,0 +1,38 @@
+<?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.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.hapticassessment">
+
+    <uses-sdk android:minSdkVersion="29" android:targetSdkVersion="30"/>
+
+    <uses-permission android:name="android.permission.VIBRATE" />
+
+    <application
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/samples/demo/haptic-assessment/README.txt b/samples/demo/haptic-assessment/README.txt
new file mode 100644
index 0000000..8b84cd8
--- /dev/null
+++ b/samples/demo/haptic-assessment/README.txt
@@ -0,0 +1,13 @@
+README
+======
+
+This haptic assessment sample app allows the user to play with three different
+types of VibrationEffects:
+
+1) Predefined click effect with default strength.
+
+2) One shot vibration with 20ms duration at max amplitude.
+
+3) Waveform vibration with 500ms duration at half amplitude, then 500ms duration
+   at max amplitude. This will pass if the device supports vibration amplitude
+   control, and visibly fail otherwise.
diff --git a/samples/demo/haptic-assessment/res/drawable-v24/ic_launcher_foreground.xml b/samples/demo/haptic-assessment/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..134813e
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,46 @@
+<!--
+  ~ 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.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                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="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
\ No newline at end of file
diff --git a/samples/demo/haptic-assessment/res/drawable/bluebar.png b/samples/demo/haptic-assessment/res/drawable/bluebar.png
new file mode 100644
index 0000000..ae163df
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/drawable/bluebar.png
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/drawable/cross_60x60.gif b/samples/demo/haptic-assessment/res/drawable/cross_60x60.gif
new file mode 100644
index 0000000..cf35617
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/drawable/cross_60x60.gif
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/drawable/ic_launcher_background.xml b/samples/demo/haptic-assessment/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..5634f72
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,185 @@
+<!--
+  ~ 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.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
diff --git a/samples/demo/haptic-assessment/res/layout/activity_main.xml b/samples/demo/haptic-assessment/res/layout/activity_main.xml
new file mode 100644
index 0000000..47d45a6
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/layout/activity_main.xml
@@ -0,0 +1,93 @@
+<!--
+  ~ 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"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <Button
+        android:id="@+id/click_effect_button"
+        android:layout_width="@dimen/button_width"
+        android:layout_height="@dimen/button_height"
+        android:layout_marginHorizontal="@dimen/button_horizontal_margin"
+        android:layout_marginTop="@dimen/button_vertical_margin"
+        android:text="@string/click_effect_button"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"/>
+
+    <Button
+        android:id="@+id/oneshot_effect_button"
+        android:layout_width="@dimen/button_width"
+        android:layout_height="@dimen/button_height"
+        android:layout_marginHorizontal="@dimen/button_horizontal_margin"
+        android:layout_marginTop="@dimen/button_vertical_margin"
+        android:text="@string/oneshot_effect_button"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/click_effect_button"/>
+
+    <Button
+        android:id="@+id/waveform_effect_button"
+        android:layout_width="@dimen/button_width"
+        android:layout_height="@dimen/button_height"
+        android:layout_marginHorizontal="@dimen/button_horizontal_margin"
+        android:layout_marginTop="@dimen/button_vertical_margin"
+        android:text="@string/waveform_effect_button"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/oneshot_effect_button"/>
+
+    <View
+        android:id="@+id/divider"
+        android:layout_width="363dp"
+        android:layout_height="1dp"
+        android:layout_marginHorizontal="@dimen/button_horizontal_margin"
+        android:layout_marginTop="10dp"
+        android:background="?android:attr/listDivider"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/waveform_effect_button"/>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="363dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/divider">
+
+        <ImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:adjustViewBounds="true"
+            android:scaleType="fitXY"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:srcCompat="@drawable/bluebar"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/samples/demo/haptic-assessment/res/mipmap-anydpi-v26/ic_launcher.xml b/samples/demo/haptic-assessment/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..47606a4
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,20 @@
+<!--
+  ~ 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.
+  -->
+
+<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/samples/demo/haptic-assessment/res/mipmap-anydpi-v26/ic_launcher_round.xml b/samples/demo/haptic-assessment/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..47606a4
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,20 @@
+<!--
+  ~ 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.
+  -->
+
+<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/samples/demo/haptic-assessment/res/mipmap-hdpi/ic_launcher.png b/samples/demo/haptic-assessment/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..a571e60
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/mipmap-hdpi/ic_launcher_round.png b/samples/demo/haptic-assessment/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 0000000..61da551
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-hdpi/ic_launcher_round.png
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/mipmap-mdpi/ic_launcher.png b/samples/demo/haptic-assessment/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..c41dd28
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/mipmap-mdpi/ic_launcher_round.png b/samples/demo/haptic-assessment/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 0000000..db5080a
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-mdpi/ic_launcher_round.png
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/mipmap-xhdpi/ic_launcher.png b/samples/demo/haptic-assessment/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..6dba46d
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/mipmap-xhdpi/ic_launcher_round.png b/samples/demo/haptic-assessment/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..da31a87
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-xhdpi/ic_launcher_round.png
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/mipmap-xxhdpi/ic_launcher.png b/samples/demo/haptic-assessment/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..15ac6817
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/samples/demo/haptic-assessment/res/mipmap-xxhdpi/ic_launcher_round.png b/samples/demo/haptic-assessment/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..b216f2d
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-xxhdpi/ic_launcher_round.png
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diff --git a/samples/demo/haptic-assessment/res/mipmap-xxxhdpi/ic_launcher.png b/samples/demo/haptic-assessment/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..f25a419
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-xxxhdpi/ic_launcher.png
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diff --git a/samples/demo/haptic-assessment/res/mipmap-xxxhdpi/ic_launcher_round.png b/samples/demo/haptic-assessment/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..e96783c
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/mipmap-xxxhdpi/ic_launcher_round.png
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diff --git a/samples/demo/haptic-assessment/res/values/colors.xml b/samples/demo/haptic-assessment/res/values/colors.xml
new file mode 100644
index 0000000..2883b95
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/values/colors.xml
@@ -0,0 +1,21 @@
+<!--
+  ~ 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.
+  -->
+
+<resources>
+    <color name="colorPrimary">#009688</color>
+    <color name="colorPrimaryDark">#673AB7</color>
+    <color name="colorAccent">#03DAC5</color>
+</resources>
diff --git a/samples/demo/haptic-assessment/res/values/dimen.xml b/samples/demo/haptic-assessment/res/values/dimen.xml
new file mode 100644
index 0000000..f9090ed
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/values/dimen.xml
@@ -0,0 +1,25 @@
+<!--
+  ~ 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.
+  -->
+
+<resources>
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+    <dimen name="button_width">350dp</dimen>
+    <dimen name="button_height">60dp</dimen>
+    <dimen name="button_horizontal_margin">32dp</dimen>
+    <dimen name="button_vertical_margin">5dp</dimen>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>
diff --git a/samples/demo/haptic-assessment/res/values/strings.xml b/samples/demo/haptic-assessment/res/values/strings.xml
new file mode 100644
index 0000000..a22d8db
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/values/strings.xml
@@ -0,0 +1,24 @@
+<!--
+  ~ 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.
+  -->
+
+<resources>
+    <string name="app_name">Haptic Hardware Assessment 2020</string>
+    <string name="click_effect_button">Effect 1</string>
+    <string name="oneshot_effect_button">Effect 2</string>
+    <string name="waveform_effect_button">Effect 3</string>
+    <string name="button_3_pass">Effect 3: PASS</string>
+    <string name="button_3_fail">Effect 3: FAIL</string>
+</resources>
diff --git a/samples/demo/haptic-assessment/res/values/styles.xml b/samples/demo/haptic-assessment/res/values/styles.xml
new file mode 100644
index 0000000..1abcab1
--- /dev/null
+++ b/samples/demo/haptic-assessment/res/values/styles.xml
@@ -0,0 +1,28 @@
+<!--
+  ~ 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.
+  -->
+
+<resources>
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <item name="android:buttonStyle">@style/AppButton</item>
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <style name="AppButton" parent="@android:style/Widget.Button">
+        <item name="android:textSize">18sp</item>
+    </style>
+</resources>
diff --git a/samples/demo/haptic-assessment/src/com/example/android/hapticassessment/MainActivity.kt b/samples/demo/haptic-assessment/src/com/example/android/hapticassessment/MainActivity.kt
new file mode 100644
index 0000000..d198b51
--- /dev/null
+++ b/samples/demo/haptic-assessment/src/com/example/android/hapticassessment/MainActivity.kt
@@ -0,0 +1,71 @@
+/*
+ * 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.
+ */
+
+package com.example.android.hapticassessment
+
+import android.graphics.Color
+import android.os.Bundle
+import android.os.VibrationEffect
+import android.os.VibrationEffect.EFFECT_CLICK
+import android.os.Vibrator
+import android.view.View
+import android.widget.Button
+
+import androidx.appcompat.app.AppCompatActivity
+
+/** App main screen. */
+class MainActivity : AppCompatActivity() {
+
+    companion object {
+
+        private const val ONE_SHOT_TIMING = 20L
+        private const val ONE_SHOT_AMPLITUDE = 255
+
+        private val WAVEFORM_TIMINGS = longArrayOf(500, 500)
+        private val WAVEFORM_AMPLITUDES = intArrayOf(128, 255)
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        val vibrator = getSystemService(Vibrator::class.java)
+
+        findViewById<Button>(R.id.click_effect_button).setOnClickListener {
+            vibrator.vibrate(VibrationEffect.createPredefined(EFFECT_CLICK))
+        }
+
+        findViewById<Button>(R.id.oneshot_effect_button).setOnClickListener {
+            vibrator.vibrate(VibrationEffect.createOneShot(ONE_SHOT_TIMING, ONE_SHOT_AMPLITUDE))
+        }
+
+        findViewById<Button>(R.id.waveform_effect_button).setOnClickListener { view: View ->
+            vibrator.vibrate(
+                VibrationEffect.createWaveform(WAVEFORM_TIMINGS, WAVEFORM_AMPLITUDES, -1))
+
+            val button = view as Button
+            if (vibrator.hasAmplitudeControl()) {
+                button.text = getString(R.string.button_3_pass)
+                button.setBackgroundColor(Color.GREEN)
+                button.setTextColor(Color.BLACK)
+            } else {
+                button.text = getString(R.string.button_3_fail)
+                button.setBackgroundColor(Color.RED)
+                button.setTextColor(Color.WHITE)
+            }
+        }
+    }
+}