Скачать или смотреть How to Create a Table in Android using RecyclerView and ListItem

Learn how to effectively create and display a dynamic table in your Android app using `RecyclerView` and `ListItem`. Follow our step-by-step guide to troubleshoot common issues related to data not displaying correctly.
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This video is based on the question https://stackoverflow.com/q/63664256/ asked by the user 'Komang Putra' ( https://stackoverflow.com/u/14077916/ ) and on the answer https://stackoverflow.com/a/63664609/ provided by the user 'Ichigo Kurosaki' ( https://stackoverflow.com/u/2522861/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Create a Table in Android using RecyclerView and ListItem

Creating a dynamic table in an Android application can seem challenging, especially when you're trying to pull data from an API using RecyclerView and ListItem. If you're facing issues like blank outputs, you're not alone. In this guide, we’ll troubleshoot common problems and guide you step-by-step through the process of setting up your table.

Understanding the Problem

Recently, a developer approached us with a challenge: they created a table using RecyclerView and ListItem, but the data fetched from the API was not displaying at all.

The relevant error message was:

[[See Video to Reveal this Text or Code Snippet]]

This error indicates that something is wrong with how the data is being formatted on the server, leading to issues on the Android side when trying to parse the response.

Step-by-Step Solution

Step 1: Review Your PHP API

The issue seems to stem from the API's output format. In the provided PHP code, there's a call to echo that includes HTML <pre> tags. This can inadvertently alter the JSON response, preventing the Android app from parsing it correctly.

Here’s the problematic part of your code:

[[See Video to Reveal this Text or Code Snippet]]

Fix:

Remove the <pre> tags entirely. You should simply return the JSON data like this:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Update Your Android Code

After fixing the PHP API, the next step involves ensuring your Android code handles the JSON response correctly. Below is the implementation flow that retrieves and displays data in the RecyclerView.

Update your getKehadiranlist method:

Ensure that you’re adding the fetched items to your absensi list and updating the adapter correctly:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Set Up Your Adapter

Make sure your TableViewAdapter is correctly linked to your RecyclerView. This includes:

Initializing the absensi list in onCreate.

Setting the adapter and its layout manager for the RecyclerView.

Example:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By addressing both your API response format and ensuring your Android app's code is set up correctly, you should be able to resolve the problem of data not displaying in your RecyclerView. Remember, debugging involves checking both server-side and client-side code to ensure proper data flow.

With these changes, your app should now display the desired attendance table, providing users with a clear view of the data. Happy coding!