packages/SystemUI/res/layout/status_bar_notification_speed_bump.xml

<!--
  ~ Copyright (C) 2014 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
  -->

<!-- Extends FrameLayout -->
<com.android.systemui.statusbar.SpeedBumpView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:focusable="true"
    android:clickable="true"
    android:visibility="gone"
    >
    <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="@dimen/speed_bump_height_collapsed"
            android:layout_gravity="top"
            android:orientation="horizontal">
        <com.android.systemui.statusbar.AlphaOptimizedView
            android:id="@+id/speedbump_line_left"
            android:layout_width="0dp"
            android:layout_height="1dp"
            android:layout_weight="1"
            android:background="#6fdddddd"
            android:layout_gravity="center_vertical"/>
        <com.android.systemui.statusbar.SpeedBumpDotsLayout
                android:id="@+id/speed_bump_dots_layout"
                android:layout_width="34dp"
                android:layout_marginStart="8dp"
                android:layout_marginEnd="8dp"
                android:layout_height="match_parent"
                android:layout_weight="0"/>
        <com.android.systemui.statusbar.AlphaOptimizedView
            android:id="@+id/speedbump_line_right"
            android:layout_width="0dp"
            android:layout_height="1dp"
            android:layout_weight="1"
            android:background="#6fdddddd"
            android:layout_gravity="center_vertical"/>
    </LinearLayout>
    <TextView
            android:id="@+id/speed_bump_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="top|center_horizontal"
            android:fontFamily="sans-serif-condensed"
            android:textSize="15sp"
            android:singleLine="true"
            android:textColor="#eeeeee"
            android:visibility="invisible"
            android:text="@string/speed_bump_explanation"
            android:paddingTop="4dp" />
</com.android.systemui.statusbar.SpeedBumpView>