Are you looking to effortlessly convert HTML pages into a RecyclerView of native Android widgets? If so, you’re in the right place! The HtmlRecycler library may just be your new best friend. With this library, you can gain more control over your HTML content compared to a WebView, making it an ideal choice for applications relying on a Content Management System (CMS). Let’s dive into how you can implement this library in your project!

Setting Up HtmlRecycler

Before you start using HtmlRecycler, you need to add it to your Android project. Follow these steps:

• Open your project’s build.gradle file
• Add the following dependency in the dependencies section:

implementation 'com.github.m7mdra:HtmlRecycler:0.1.11'

• Ensure that you add JitPack as a Maven repository. Add the following in the allprojects section:

maven { url 'https://jitpack.io' }

Demo

Check out the demo to see HtmlRecycler in action:

• Demo GIF 1
• Demo GIF 2
• Download APK

Supported HTML Elements

This library supports various HTML elements, enabling you to display them cleanly within your app:

• Paragraph
• Headings (H1 to H6)
• Image
• Video
• Audio
• Ordered/Unordered List
• Description List
• Anchor Link
• IFrame
• DIV
• Table (coming soon)

Implementing HtmlRecycler

With everything set up, you can now implement HtmlRecycler in your Android activity! Here’s how:

val networkSource = NetworkSource("https://gist.githubusercontent.com/m7mdra/f22c62bc6941e08064b4fbceb4832a90/raw/ea8574d986635cf214541f1f5702ef37cc731aaf/article.html")

HtmlRecycler.Builder(this@MainActivity)
    .setSource(networkSource)
    .setAdapter(DefaultElementsAdapter(this@MainActivity, { element, i, view ->
       // Handle element touch
    }))
    .setRecyclerView(recyclerView)
    .setLoadingCallback(object : HtmlRecycler.LoadCallback {
        override fun onLoadingStart() {
            progressBar.visibility = View.VISIBLE
        }

        override fun onLoaded(document: Document?) {
            progressBar.visibility = View.GONE
        }
    })
    .build()

Understanding the Code: An Analogy

Think of the code for setting up the HtmlRecycler as preparing a meal. Here’s how each component plays a role:

• Ingredients (NetworkSource): Just like selecting the freshest ingredients for a recipe, here you specify the source of your HTML content. It’s essential to choose quality content to create the best outcome!
• Chef (HtmlRecycler.Builder): The chef meticulously follows the recipe to create a delightful dish. The builder in your code sets up everything correctly, ensuring the ingredients are prepared and cooked in the right order.
• Serving (RecyclerView): Finally, the meal is beautifully served on the table (RecyclerView) for everyone to enjoy. The presentation matters—just like how your app should showcase content attractively.

Creating Custom Adapters

If you want a personalized dining experience (custom implementation), here’s how to create your own adapter:

class BetterImplementationThanTheAuthorsAdapter : ElementsAdapter() {
    override fun onCreateElement(parent: ViewGroup, elementType: ElementType): RecyclerView.ViewHolder {
        when (elementType) {
            ElementType.Paragraph -> {
                return ParagraphViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.row_paragraph, parent, false))
            }
            // Define other elements here
        }
    }

    override fun onBindElement(holder: RecyclerView.ViewHolder, position: Int) {
        val element = elements[position]
        if (holder is ParagraphViewHolder) {
            val paragraphElement = element as ParagraphElement
            holder.paragraphText.text = paragraphElement.text
        }
    }
}

Adding Data

You can supply data to HtmlRecycler through multiple sources:

• Assets
• File
• String
• Network

When pulling data from the network, remember to handle threading appropriately since it runs on the UI thread by default.

Troubleshooting Tips

If you encounter any issues while implementing the HtmlRecycler, consider the following:

• Ensure that you have the correct dependency and JitPack repository set up.
• Check your layout files to ensure they are formatted correctly.
• If your elements are not displaying properly, verify your HTML structure.
• For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Next Steps

As you embark on your journey with HtmlRecycler, consider diving into the TODO list for further enhancements:

• Define a standard layout styling
• Support for additional elements like tables and more
• Perform tests on Element Extractors for different data sets

Conclusion

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

Let’s Wrap Things Up!

Now you have all the information to transform HTML content into a gorgeous RecyclerView using HtmlRecycler. Happy coding!