{"id":69432,"date":"2025-01-23T06:28:21","date_gmt":"2025-01-23T00:58:21","guid":{"rendered":"https:\/\/www.tothenew.com\/blog\/?p=69432"},"modified":"2025-01-28T16:35:38","modified_gmt":"2025-01-28T11:05:38","slug":"component-library-in-roku","status":"publish","type":"post","link":"https:\/\/www.tothenew.com\/blog\/component-library-in-roku\/","title":{"rendered":"Component Library in Roku"},"content":{"rendered":"<h2>What is a Component Library<\/h2>\n<ul>\n<li>A Component Library in Roku is a reusable collection of pre-built components that developers can use across multiple Roku channels.<\/li>\n<li>These components encapsulate specific functionalities, designs, or user interface elements, saving time and effort in the development process.<\/li>\n<li>The library is hosted on a server and can be easily accessed and integrated into Roku channels via a manifest file or a dependencies configuration.<\/li>\n<li>It\u2019s a vital tool for developers to build high-quality Roku channels efficiently and effectively.<\/li>\n<\/ul>\n<h2>Benefits of using a Component Library<\/h2>\n<p>A Component Library offers several advantages that streamline the Roku development process and enhance channel quality. Below are the key benefits:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Components are pre-built and reusable, reducing the need to write the same code repeatedly for different Roku channels.<\/li>\n<li>Saves time and effort, especially for frequently used elements like buttons, menus, or player interfaces.<\/li>\n<li>If offered by the library, you can customize the look &amp; feel of the UI elements used in the library.<\/li>\n<li>Developers can quickly integrate ready-made components into their projects.<\/li>\n<li>Shortens the development cycle, allowing teams to focus on other features.<\/li>\n<li>Updates or bug fixes in the library automatically propagate to all channels using it.<\/li>\n<li>Simplifies the process of maintaining multiple projects by centralizing component management.<\/li>\n<li>Saves resources, making the development process more cost-effective.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Disadvantages of using a Component Library<\/h2>\n<p>While a Component Library offers many advantages, it also comes with some potential drawbacks that developers should consider:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Building a robust Component Library requires significant time and effort upfront.<\/li>\n<li>It involves proper documentation(which, of course, is time-consuming) before they can be used.<\/li>\n<li>Developers need to understand how to integrate and configure components properly.<\/li>\n<li>Channels relying on an external library may face issues if the library is unavailable or not maintained or facing some technical glitches.<\/li>\n<li>Updates to the library might break compatibility with existing channels, requiring rework.<\/li>\n<li>Large libraries may include unused components, increasing app size unnecessarily.<\/li>\n<li>Developers don\u2019t have the access to source code of libraries.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Creating Your own Component Library<\/h3>\n<p>Creating a custom Component Library for Roku channels involves several steps. Here&#8217;s a clear approach to building your own library:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Manifest<\/strong>: The manifest file of a component library must include the following entries:\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>rsg_version<\/strong> flag<\/li>\n<li><strong>sg_component_libs_provided<\/strong> flag<\/li>\n<li><strong>hidden<\/strong> flag<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Structure the Library: <\/strong>Create a well-organized directory structure for the library.\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Leave the main.brs file blank. Make sure it doesn\u2019t contain any code.<\/li>\n<li>Make sure the Components folder contains the reusable components only.<\/li>\n<li>Ensure each component is self-contained with customizable properties, such as colors, sizes, or events.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div id=\"attachment_69426\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-69426\" decoding=\"async\" loading=\"lazy\" class=\"wp-image-69426 size-large\" src=\"https:\/\/www.tothenew.com\/blog\/wp-ttn-blog\/uploads\/2025\/01\/LibraryStructure-1024x566.png\" alt=\"Library Structure\" width=\"625\" height=\"345\" srcset=\"\/blog\/wp-ttn-blog\/uploads\/2025\/01\/LibraryStructure-1024x566.png 1024w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/LibraryStructure-300x166.png 300w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/LibraryStructure-768x425.png 768w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/LibraryStructure-1536x849.png 1536w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/LibraryStructure-2048x1132.png 2048w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/LibraryStructure-624x345.png 624w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/><p id=\"caption-attachment-69426\" class=\"wp-caption-text\">Library Structure<\/p><\/div>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Documentation<\/strong> :\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Provide clear documentation on how to use each component.<\/li>\n<li>Include code snippets, expected inputs, and output behavior.<\/li>\n<li>Explain how to integrate components into Roku channels<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Packaging<\/strong>: Component libraries can be packaged and signed the same way that apps are packaged and signed. You side-load your library, package it using the packaging tool, and then host the package file on the server of your choosing. You\u2019ll get a link that can be shared as the library downloadable link.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div id=\"attachment_69431\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-69431\" decoding=\"async\" loading=\"lazy\" class=\"wp-image-69431 size-large\" src=\"https:\/\/www.tothenew.com\/blog\/wp-ttn-blog\/uploads\/2025\/01\/Packaging-1024x543.png\" alt=\"Packaging\" width=\"625\" height=\"331\" srcset=\"\/blog\/wp-ttn-blog\/uploads\/2025\/01\/Packaging-1024x543.png 1024w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Packaging-300x159.png 300w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Packaging-768x407.png 768w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Packaging-1536x814.png 1536w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Packaging-624x331.png 624w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Packaging.png 2022w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/><p id=\"caption-attachment-69431\" class=\"wp-caption-text\">Packaging<\/p><\/div>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Host the Library<\/strong> :\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Host the library on a version-controlled server or cloud platform for easy access.<\/li>\n<li>Free Hosting Options: GitHub, GitLab, Bitbucket, AWS S3.<\/li>\n<li>Ensure the hosting platform supports easy integration using URLs.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Using a Component Library in a Roku Channel<\/h3>\n<p>We need to understand the <strong>ComponentLibrary<\/strong> node class first to understand how we can use hosted libraries in our Roku channels. The ComponentLibrary is a native Roku node that downloads a library of custom SceneGraph components to be used in an application. Please note that The ComponentLibrary node should be used in a <strong>Scene<\/strong> node, such as Scene or <strong>OverhangPanelSetScene<\/strong>. This is done to make sure that the library is available before it is used anywhere in the application. ComponentLibrary has only three fields which are as follows :<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>loadStatus<\/strong>: It indicates the progress of the library being downloaded. The possible values of this field are &#8211; none, loading, ready, failed.<\/li>\n<li><strong>id<\/strong>: It\u2019s a unique ID for the library that\u2019ll be used in the application. This can be retrieved from the documentation.<\/li>\n<li><strong>uri<\/strong> : It\u2019s the URL of the library to be downloaded. We pass the URL of the hosted library in this field.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Now that we\u2019ve understood what the ComponentLibrary node class is, let\u2019s understand how we Following steps are required to use a hosted Component Library in other Roku channels:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong><strong>Download Component Library in Scene<\/strong><\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div id=\"attachment_69427\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-69427\" decoding=\"async\" loading=\"lazy\" class=\"wp-image-69427 size-large\" src=\"https:\/\/www.tothenew.com\/blog\/wp-ttn-blog\/uploads\/2025\/01\/Downloading-Library-1024x828.png\" alt=\"Downloading Library\" width=\"625\" height=\"505\" srcset=\"\/blog\/wp-ttn-blog\/uploads\/2025\/01\/Downloading-Library-1024x828.png 1024w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Downloading-Library-300x243.png 300w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Downloading-Library-768x621.png 768w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Downloading-Library-1536x1243.png 1536w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Downloading-Library-624x505.png 624w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/Downloading-Library.png 1612w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/><p id=\"caption-attachment-69427\" class=\"wp-caption-text\">Downloading Library<\/p><\/div>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Include the components declared in a component library inside your app(<strong>in any component\u2019s xml file<\/strong>) the same way you include others like custom\/native components. Make sure to specify it in the format <strong>libraryName:componentName<\/strong>. So say if a component named <strong>ProgressDialog<\/strong> is defined in the <strong>SampleComponentLib<\/strong> library, then it may be used like this:<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>&lt;SampleComponentLib:ProgressDialog portarUrl=&#8221;pkg:\/images\/poster.png&#8221; translation=&#8221;[200, 300]&#8221;\/&gt;<\/strong><\/p>\n<div id=\"attachment_69428\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-69428\" decoding=\"async\" loading=\"lazy\" class=\"wp-image-69428 size-large\" src=\"https:\/\/www.tothenew.com\/blog\/wp-ttn-blog\/uploads\/2025\/01\/IncludingComponentLibrary-1024x442.png\" alt=\"Including Library\" width=\"625\" height=\"270\" srcset=\"\/blog\/wp-ttn-blog\/uploads\/2025\/01\/IncludingComponentLibrary-1024x442.png 1024w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/IncludingComponentLibrary-300x130.png 300w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/IncludingComponentLibrary-768x332.png 768w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/IncludingComponentLibrary-624x269.png 624w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/IncludingComponentLibrary.png 1084w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/><p id=\"caption-attachment-69428\" class=\"wp-caption-text\">Including Library<\/p><\/div>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Access the component item in the brs file using the given ID and provide it with the required attributes.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div id=\"attachment_69430\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-69430\" decoding=\"async\" loading=\"lazy\" class=\"wp-image-69430 size-large\" src=\"https:\/\/www.tothenew.com\/blog\/wp-ttn-blog\/uploads\/2025\/01\/UsingLibrary-1024x364.png\" alt=\"Using Library\" width=\"625\" height=\"222\" srcset=\"\/blog\/wp-ttn-blog\/uploads\/2025\/01\/UsingLibrary-1024x364.png 1024w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/UsingLibrary-300x107.png 300w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/UsingLibrary-768x273.png 768w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/UsingLibrary-624x222.png 624w, \/blog\/wp-ttn-blog\/uploads\/2025\/01\/UsingLibrary.png 1340w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/><p id=\"caption-attachment-69430\" class=\"wp-caption-text\">Using Library<\/p><\/div>\n<p><strong>References :<\/strong><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>https:\/\/developer.roku.com\/docs\/references\/scenegraph\/control-nodes\/componentlibrary.md<\/li>\n<li>https:\/\/github.com\/rokucommunity\/sample-projects\/tree\/master\/component-library-and-project<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>What is a Component Library A Component Library in Roku is a reusable collection of pre-built components that developers can use across multiple Roku channels. These components encapsulate specific functionalities, designs, or user interface elements, saving time and effort in the development process. The library is hosted on a server and can be easily accessed [&hellip;]<\/p>\n","protected":false},"author":637,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":144},"categories":[3477],"tags":[6999,5509,3116,3474,3629],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/69432"}],"collection":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/users\/637"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/comments?post=69432"}],"version-history":[{"count":4,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/69432\/revisions"}],"predecessor-version":[{"id":69624,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/69432\/revisions\/69624"}],"wp:attachment":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/media?parent=69432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/categories?post=69432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/tags?post=69432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}