samples/demo/haptic-assessment/res/layout/activity_main.xml

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  ~ 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
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  ~ 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.
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<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>