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instructions.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="generator" content="Asciidoctor 1.5.8">
<title>ALX314 Build an Interactive Alexa Voice Experience for Multiple Screens</title>
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</head>
<body class="article toc2 toc-left">
<div id="header">
<h1>ALX314 Build an Interactive Alexa Voice Experience for Multiple Screens</h1>
<div id="toc" class="toc2">
<div id="toctitle">Table of Contents</div>
<ul class="sectlevel1">
<li><a href="#_getting_started">Getting Started</a>
<ul class="sectlevel2">
<li><a href="#_pre_requisites">Pre-requisites</a></li>
<li><a href="#_alexa_skill_basics">Alexa Skill Basics</a></li>
<li><a href="#_instructions">Instructions</a></li>
<li><a href="#_conclusion">Conclusion</a></li>
</ul>
</li>
<li><a href="#_activity_part_i">Activity: Part I</a>
<ul class="sectlevel2">
<li><a href="#_add_visuals_to_sauce_boss_with_an_apl_document">Add Visuals to Sauce Boss with an APL Document</a></li>
<li><a href="#_conclusion_2">Conclusion</a></li>
</ul>
</li>
<li><a href="#_activity_part_ii">Activity: Part II</a>
<ul class="sectlevel2">
<li><a href="#_databinding_with_apl">Databinding with APL</a></li>
<li><a href="#_make_your_template_dynamic">Make Your Template Dynamic</a></li>
<li><a href="#_conclusion_3">Conclusion</a></li>
</ul>
</li>
<li><a href="#_activity_part_iii">Activity: Part III</a>
<ul class="sectlevel2">
<li><a href="#_transformers">Transformers</a></li>
<li><a href="#_speech_synchronization">Speech Synchronization</a></li>
<li><a href="#_conclusion_4">Conclusion</a></li>
</ul>
</li>
<li><a href="#_activity_part_iv">Activity: Part IV</a>
<ul class="sectlevel2">
<li><a href="#_touch_events">Touch Events</a></li>
<li><a href="#_conclusion_5">Conclusion</a></li>
<li><a href="#_bonus">BONUS</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_getting_started">Getting Started</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Sauce Boss, Inc. has made a skill called Sauce Boss. This skill helps people make all sorts of unique sauces from basic condiments and spices that are available in a common kitchen.</p>
</div>
<div class="paragraph">
<p>Sauce Boss has been a five star, voice-first skill, with amazing engagement from all its happy customers! Sauce Boss, Inc. has expressed great interest in scaling this skill and enhancing the experience for all of its customers.</p>
</div>
<div class="paragraph">
<p>Sauce Boss, Inc. wants to present a unique, unparalleled sauce creating experience across the entire multi-modal Alexa device family of Echo Spots, Echo TVs and Echo Shows.</p>
</div>
<div class="paragraph">
<p>We’ll use Sauce Boss, Inc.'s graphic assets and storyboard to build the display leveraging APL.</p>
</div>
<div class="sect2">
<h3 id="_pre_requisites">Pre-requisites</h3>
<div class="admonitionblock important">
<table>
<tr>
<td class="icon">
<i class="fa icon-important" title="Important"></i>
</td>
<td class="content">
This guide has been written to introduce APL. As a workshop attendee, you’ll gain exclusive access to our closed Private Beta for Alexa Hosted skills! To sign-up for the Alexa Hosted Skills Beta, login to the developer portal, open this link: <a href="https://developer.amazon.com/alexa/console/ask/editor/register" class="bare">https://developer.amazon.com/alexa/console/ask/editor/register</a> in a new window, and enter the code you were provided upon entry. Once you’ve registered the code to your account you can proceed through the rest of this guide.
</td>
</tr>
</table>
</div>
</div>
<div class="sect2">
<h3 id="_alexa_skill_basics">Alexa Skill Basics</h3>
<div class="paragraph">
<p>Before we get started it’s important to understand how an Alexa skill works.</p>
</div>
<div class="paragraph">
<p>When a customer says the <strong>wake word</strong> the Alexa Service analyzes what the customer said using Speech Recognition, Machine Mearning and Natural Language Understanding. Don’t be intimidated by these complicated sounding words, you don’t need a deep understanding of how they work in order to build an Alexa skill. You should focus on how people will converse with your skill and design a <strong>voice user interaction model</strong>, which dictates how the Alexa Services’s speech science engines will interpret what the user says. This information is mapped to an <strong>Intent</strong> that’s defined in your model and is sent as a JSON Request to your skill’s back-end service.</p>
</div>
<div class="paragraph">
<p>When your service receives the request, your skill will unpack it, determine what to do with it an return a JSON response back to the Alexa Service. The service will then unpack the response and determine what to do with it. If you return a <strong>Speechlet</strong> the Alexa Service will use Text to Speech to convert the provided text to audio. If you return an APL Directive and the device has a screen the APL document will be rendered and displayed on the screen.</p>
</div>
<div class="paragraph">
<p>The image below represents a high level view of how an Alexa Skill works within the Alexa Service.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/skill-diagram.png" alt="alexa skill diagram">
</div>
<div class="title">Figure 1. Alexa Skill Diagram</div>
</div>
</div>
<div class="sect2">
<h3 id="_instructions">Instructions</h3>
<div class="sect3">
<h4 id="_skill_creation">Skill Creation</h4>
<div class="paragraph">
<p><strong>1.</strong> Go to the <a href="https://developer.amazon.com/alexa" target="_blank" rel="noopener">Amazon Alexa Developer Portal</a>. In the top-right corner of the screen, click the <a href="https://www.amazon.com/ap/signin?openid.return_to=https%3A%2F%2Fdeveloper.amazon.com%2Falexa&openid.identity=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&openid.assoc_handle=mas_dev_portal&openid.mode=checkid_setup&marketPlaceId=ATVPDKIKX0DER&openid.claimed_id=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0%2Fidentifier_select&pageId=amzn_developer_portal&openid.ns=http%3A%2F%2Fspecs.openid.net%2Fauth%2F2.0&siteState=clientContext%3D135-2587902-6844734%2CsourceUrl%3Dhttps%253A%252F%252Fdeveloper.amazon.com%252Falexa%2Csignature%3Dnull&language=en_US" target="_blank" rel="noopener">Sign In</a> button. If you don’t already have an account, you will be able to create a new one for free.</p>
</div>
<div class="paragraph">
<p><strong>2.</strong> Once you have signed in, mouse over <strong>Your Alexa Consoles</strong> at the top of the screen and Select the <strong>Skills</strong>.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/a0-e01_01-03_login-and-create.gif" alt="Select Alexa Developer Console">
</div>
<div class="title">Figure 2. Selecting <strong>Skills</strong> from the <strong>Your Alexa Consoles</strong> menu</div>
</div>
<div class="paragraph">
<p><strong>3.</strong> From the Alexa Developer Console click the <strong>Create Skill</strong> button near the top of the screen.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/a0-e01_03_create-skill.png" alt="create skill button">
</div>
<div class="title">Figure 3. The <strong>Create Skill</strong> Button</div>
</div>
<div class="paragraph">
<p><strong>4.</strong> For this workshop, we’ll name our skill Sauce Boss.</p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
If you were to publish your skill, this is the name that will be shown in the Alexa Skills Store.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>From this screen, there’s several skill models we can choose and they each have their unique properties. For this workshop we’re building a <strong>Custom Skill</strong>.</p>
</div>
<div class="paragraph">
<p><strong>5.</strong> Select the <strong>Custom</strong> model.</p>
</div>
<div class="paragraph">
<p><strong>6.</strong> Select a method for hosting your skill, for this workshop, choose <strong>Alexa Hosted</strong>.</p>
</div>
<div class="paragraph">
<p><strong>7.</strong> Select the <strong>Create Skill</strong> button on the top right.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/a0-e01_04-07_create-skill.gif" alt="Creating Alexa Hosted Skill">
</div>
<div class="title">Figure 4. Creating an Alexa Hosted Skill - Beta</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
After clicking create, the system will initialize your project. Upon completion you’ll be able to begin working on your skill.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p><strong>8.</strong> On the left hand navigation panel find the <strong>Interfaces</strong> tab and toggle APL to <strong>On</strong>.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/a0-e01_08_activate-display-interface.gif" alt="activate display interface">
</div>
<div class="title">Figure 5. Activing the display interface</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
🏆 Congratulations, your skill is now ready to support APL directives!
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>Now that you’ve created your skill and activated the APL directives, its now time to build your front-end and back-end so you’ll be able to handle requests from your customers.</p>
</div>
</div>
<div class="sect3">
<h4 id="_front_end">Front-end</h4>
<div class="paragraph">
<p>The interaction model is the voice user interface for your skill. It defines how your customers will interact with your skill. Normally you would spend a significant amount of time designing and perfecting this to ensure that your skill delights your customers. To foucs on our learning APL, our design team provided a pre-built voice user interaction model for us to you.</p>
</div>
<div class="paragraph">
<p><strong>9.</strong> On the left hand navigation panel, click <strong>JSON Editor</strong>.</p>
</div>
<div class="paragraph">
<p><strong>10.</strong> Copy and paste the JSON from this link into the main window in the <strong>JSON Editor Panel</strong>. Select <strong>Save</strong> and then <strong>Build Model</strong>.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/a0-e09_10_paste-model.gif" alt="updating the model">
</div>
<div class="title">Figure 6. Updating the Voice User Interaction Model</div>
</div>
<div class="admonitionblock caution">
<table>
<tr>
<td class="icon">
<i class="fa icon-caution" title="Caution"></i>
</td>
<td class="content">
This is a note to add the actual link mentioned above into the guide and remove this caution tag!
</td>
</tr>
</table>
</div>
</div>
<div class="sect3">
<h4 id="_back_end">Back-end</h4>
<div class="paragraph">
<p>Now that we’ve built our Voice User Interaction model, which provides the training data to the Alexa Service so it knows how to interpret what the customer has said, we are now going to create our back-end service so we can return a response.</p>
</div>
<div class="paragraph">
<p><strong>11.</strong> On the top navigation, select the <strong>Code</strong> hyperlink. Alexa hosted skills allows us to edit, configure, and change the back-end of our code without leaving the developer portal.</p>
</div>
<div class="paragraph">
<p><strong>12.</strong> Select <strong>index.js</strong> on the left-hand navigation. Copy and Paste the code from this link into the <strong>index.js</strong> file in the Developer Portal window.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/a0-e11_12_create-index.js.gif" alt="updating index.js">
</div>
<div class="title">Figure 7. Updating the <strong>index.js</strong> file</div>
</div>
<div class="paragraph">
<p><strong>13.</strong> Click on the <strong>package.json</strong> file and paste the following JSON and click save.</p>
</div>
<div class="literalblock">
<div class="title">package.json</div>
<div class="content">
<pre>{
"name": "sauce-boss",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"ask-sdk-core": "^2.0.0",
"ask-sdk-model": "^1.0.0",
"i18next": "^10.5.0",
"i18next-sprintf-postprocessor": "^0.2.2"
}
}</pre>
</div>
</div>
<div class="imageblock">
<div class="content">
<img src="images/a0-e13_package.json.gif" alt="updating package.json">
</div>
<div class="title">Figure 8. Updating <strong>package.json</strong></div>
</div>
<div class="paragraph">
<p><strong>14.</strong> Click the <strong>deploy</strong> button.</p>
</div>
<div class="paragraph">
<p>Doing so will deploy your skill’s backend. Once it’s finished deploying, you’ll be able to test your skill.</p>
</div>
</div>
<div class="sect3">
<h4 id="_testing">Testing</h4>
<div class="paragraph">
<p><strong>15.</strong> Now it’s time to test our skill. To do that, click the <strong>Test</strong> tab in the top navigation.</p>
</div>
<div class="paragraph">
<p><strong>16.</strong> Type <code>open sauce boss</code> into the text box to simulate a user utterance to your skill. You can try interacting fully with the skill here. Over the next few activities, we’ll enhance our skill’s experience with visuals that will automatically scale to fit whatever screen size.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/a0-e15_testing-a-skill.gif" alt="testing a skill">
</div>
<div class="title">Figure 9. Testing <strong>Sauce Boss</strong> in the simulator</div>
</div>
</div>
</div>
<div class="sect2">
<h3 id="_conclusion">Conclusion</h3>
<div class="paragraph">
<p>In this activity you:</p>
</div>
<div class="olist arabic">
<ol class="arabic">
<li>
<p>Created an Alexa Skill</p>
</li>
<li>
<p>Enabled APL</p>
</li>
<li>
<p>Created your Voice User Interaction Model</p>
</li>
<li>
<p>Created your skill’s backend service with AWS Lambda</p>
</li>
</ol>
</div>
<div class="paragraph">
<p><strong>Like a boss!</strong> <span class="image"><img src="images/skill-icon.png" alt="The Sauce Boss"></span></p>
</div>
<div style="page-break-after: always;"></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_activity_part_i">Activity: Part I</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_add_visuals_to_sauce_boss_with_an_apl_document">Add Visuals to Sauce Boss with an APL Document</h3>
<div class="paragraph">
<p>In the first activity we created the Sauce Boss skill. While testing your skill in the simluator, you may have noticed your skill is lacking its screens. Sauce Boss Inc. is relying on us to add the visuals to the skill. Let’s start by creating the screen for the LaunchRequest, which displays when the customer says, "Alexa, open sauce boss." To do that, we’ll create an APL Document and send it as a Directive to the Alexa Service from our Skill’s back-end service.</p>
</div>
<div class="sect3">
<h4 id="_starting_from_storyboards">Starting from Storyboards</h4>
<div class="paragraph">
<p>Here’s the storyboard our designer left with us. We can see exactly what the visual component of a particular interaction should look like. Notice how each of the four panels shows viewports for two types of displays, the small round hub display, or what the customer will see on a device with a form factor like the Echo Dot, and below it the large Hub display, or what the customer will see on devices with a form factor like the Echo Show. It’s good practice to start designing from the smallest form factor and expanding outwards.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/storyboard.png" alt="storyboard">
</div>
<div class="title">Figure 10. Sauce Boss Storyboard</div>
</div>
<div class="paragraph">
<p>In this activity, we’ll be creating the visual component of the launch request. After a customer invokes Sauce Boss by saying "Alexa, open Sauce Boss" they should be presented with a welcome message and some options. We can see exactly this interaction in the second panel.</p>
</div>
</div>
<div class="sect3">
<h4 id="_building_an_apl_document">Building an APL Document</h4>
<div class="paragraph">
<p><strong>1.1</strong> Open the code tab in the <strong>Amazon Developer Portal</strong>.</p>
</div>
<div class="paragraph">
<p><strong>1.2.</strong> Click the new folder button to create a new folder called <strong>documents</strong> inside the <strong>lambda/custom</strong> directory.</p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
We will save all of our APL documents into this folder. Technically we can save our APL Documents any where, but it’s a best practice to separate them from your coding logic.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p><strong>1.3.</strong> Create a new file called <strong>launchrequest.json</strong> in your newly created <strong>documents</strong> folder. We’ll come back to fill this out later with the resulting document from the APL Authoring Tool.</p>
</div>
<div class="paragraph">
<p><strong>1.4.</strong> In a new browser tab, open the <strong>APL Authoring Tool</strong>. You can do so by selecting the option for <strong>Display</strong> on the left hand navigation of the <strong>Build</strong> tab, or you can click this link: [<a href="https://developer.amazon.com/alexa/console/ask/displays" class="bare">https://developer.amazon.com/alexa/console/ask/displays</a>]</p>
</div>
<div class="paragraph">
<p><strong>1.5</strong> On the Authoring Tool. Select <strong>Start from Scratch</strong>.</p>
</div>
<div class="paragraph">
<p><strong>1.6</strong> Slide the toggle from the Triple Pane Editor to the Single Pane View.</p>
</div>
<div class="paragraph">
<p><strong>Before:</strong> <span class="image"><img src="images/ui/toggle-layout-view.png" alt="Layout View"></span></p>
</div>
<div class="paragraph">
<p><strong>After:</strong> <span class="image"><img src="images/ui/toggle-code-view.png" alt="Code View"></span></p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
Now we have a scratch APL Document. Let’s learn about all the elements that compose one.
</td>
</tr>
</table>
</div>
<div class="listingblock">
<div class="title">The fundamental elements of an empty APL document.</div>
<div class="content">
<pre class="highlight"><code class="language-json" data-lang="json">{
"type": "APL",
"version": "1.0",
"theme": "dark", <i class="conum" data-value="1"></i><b>(1)</b>
"import": [], <i class="conum" data-value="2"></i><b>(2)</b>
"resources": [], <i class="conum" data-value="3"></i><b>(3)</b>
"styles": {}, <i class="conum" data-value="4"></i><b>(4)</b>
"layouts": {}, <i class="conum" data-value="5"></i><b>(5)</b>
"mainTemplate": { <i class="conum" data-value="6"></i><b>(6)</b>
"items": []
}
}</code></pre>
</div>
</div>
<div class="colist arabic">
<table>
<tr>
<td><i class="conum" data-value="1"></i><b>1</b></td>
<td>The <code>theme</code> reflects the basic color scheme in use on the device, options here are dark or light.</td>
</tr>
<tr>
<td><i class="conum" data-value="2"></i><b>2</b></td>
<td><code>Import</code> allows reference of external styles, resources, or layouts to be used by your APL document.</td>
</tr>
<tr>
<td><i class="conum" data-value="3"></i><b>3</b></td>
<td><code>Resources</code> are a constant used when drawing text, images, and layouts on the screen. Using a named constant allows reuse of an APL document across different devices by providing per-device resources.</td>
</tr>
<tr>
<td><i class="conum" data-value="4"></i><b>4</b></td>
<td><code>Styles</code> are a collection of state-dependent resources. For example, the flatButton style defines the size, background color, text color, border color, border width, and border radius of one type of button for the "normal", "pressed", "focused", and "disabled" states. All APL components have a clearly documented list of styled properties.</td>
</tr>
<tr>
<td><i class="conum" data-value="5"></i><b>5</b></td>
<td><code>Layouts</code> are composed of visual components. Portions of the layout can be dependent on the screen size/shape or and may include other layouts</td>
</tr>
<tr>
<td><i class="conum" data-value="6"></i><b>6</b></td>
<td>The <code>mainTemplate</code> property is a pre-defined layout. This is the layout that will be inflated when the APL document is first instantiated on the screen.</td>
</tr>
</table>
</div>
<div class="paragraph">
<p><strong>1.7.</strong> Copy and Paste this following block of code into the document window. You should see a simulation of the APL Document in the viewport window!</p>
</div>
<div class="admonitionblock important">
<table>
<tr>
<td class="icon">
<i class="fa icon-important" title="Important"></i>
</td>
<td class="content">
Akersh! update the above text to link to the actual file once it’s found it’s final resting place.
</td>
</tr>
</table>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
We can preview how the document will look across different devices by manipulating the viewport in the APL Authoring Tool. Viewports can be changed from small round, medium, large, and extra large and layouts can be optimized for each of these viewports. It’s best practice to start developing with the smallest form factor.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p><strong>1.8.</strong> Switch the viewport from Medium Hub to Small Round Hub.</p>
</div>
<div class="paragraph">
<p>Notice how the background is missing on the small hub but it was present on the medium hub? This is an example of dynamic layouts based on the viewport. Let’s go ahead and add this background.</p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
We can set dynamic resources by setting a condition with the <code>when</code> parameter.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p><strong>1.9.</strong> Scroll down to <code>resources</code> on <code>line 19</code>. Copy and paste the following code block into the array on <code>line 20</code>:</p>
</div>
<div class="listingblock">
<div class="title">Add the Background Resource to the Small Round Hub</div>
<div class="content">
<pre class="highlight"><code class="language-json" data-lang="json">{
"description": "Sauce boss background image assets",
"when": "${@viewportProfile == @hubRoundSmall}", <i class="conum" data-value="1"></i><b>(1)</b>
"strings": { <i class="conum" data-value="2"></i><b>(2)</b>
"backgroundBottom": "https://s3.amazonaws.com/sauceboss/sauceBoss-background-bottom-smHub.png",
"backgroundLeft": "https://s3.amazonaws.com/sauceboss/sauceBoss-background-left-smHub.png",
"backgroundRight": "https://s3.amazonaws.com/sauceboss/sauceBoss-background-right-smHub.png",
"backgroundSecret": "https://s3.amazonaws.com/sauceboss/sauceBoss-background-secret-smHub.png"
}
}</code></pre>
</div>
</div>
<div class="colist arabic">
<table>
<tr>
<td><i class="conum" data-value="1"></i><b>1</b></td>
<td>Using a <code>when</code> parameter allows us to specify when a resource is active based on a certain condition. In this case, when the viewport is on the smallest hub, our background images will be sourced from these locations.</td>
</tr>
<tr>
<td><i class="conum" data-value="2"></i><b>2</b></td>
<td>These images are optimized for display on a round small hub. A good practice is to have assets optimized for the the different viewport profiles.</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>Now we can see what the screen looks like on different device types by changing our viewport so that we can simulate what the visual experience on different form factors. Looks like the header and footers are missing as well.</p>
</div>
<div class="paragraph">
<p>Let’s edit the header first.</p>
</div>
<div class="paragraph">
<p><strong>1.10.</strong> Toggle the slider from single pane view to triple plane view.</p>
</div>
<div class="paragraph">
<p><strong>1.11.</strong> Click through the elements to find the <code>alexaHeader</code> type. Hint: This should be in the second container as the first item.</p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
Notice how all the elements are nested? Using this nesting structure we can create a variety of custom screen types.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p><strong>1.12.</strong> You should see three attributes in the main editing window: <code>type</code>, <code>headerTitle</code> and <code>headerAttributionImage</code>. Fill out the <code>headerTitle</code> and <code>headerAttributionImage</code> following the example below:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-json" data-lang="json"> {
"type": "AlexaHeader", <i class="conum" data-value="1"></i><b>(1)</b>
"headerTitle": "WELCOME TO SAUCE BOSS", <i class="conum" data-value="2"></i><b>(2)</b>
"headerAttributionImage": "@skillIcon" <i class="conum" data-value="3"></i><b>(3)</b>
},</code></pre>
</div>
</div>
<div class="colist arabic">
<table>
<tr>
<td><i class="conum" data-value="1"></i><b>1</b></td>
<td>This is the header layout, which is defined by passing <code>AlexaHeader</code> as the type. This is a pre-defined APL layout that is included as a part of our import <code>alexa-layouts</code>. The benefit of using pre-defined APL layouts is that the design will have full support of all viewport sizes.</td>
</tr>
<tr>
<td><i class="conum" data-value="2"></i><b>2</b></td>
<td>The header layout gives us the <code>headerTitle</code> parameter. This parameter sets the title of the header.</td>
</tr>
<tr>
<td><i class="conum" data-value="3"></i><b>3</b></td>
<td>The header layout also gives us the <code>headerAttributionImage</code> parameter. This parameter allows you to change a standard attribution image. Right now it’s set to <code>@skillIcon</code> which is a transformer for receiving the skill icon. We’ll learn more about transformers in Activity III.</td>
</tr>
</table>
</div>
</div>
<div class="sect3">