How to Load Local JSON Data into a ListView from Assets Folder?

Parse a Local JSON File from Assets Folder into a ListView

The need to parse JSON data from local files arises in various programming scenarios, including your current project. This allows your application to access and utilize data stored in a structured JSON format.

To parse the "formules.json" file from your assets folder and populate a ListView with its contents, follow these steps:

1. Read the JSON file: You can use a utility method like the one provided in the reference answer to read the JSON file from the assets folder. This function should return a string containing the JSON data.
2. Create a JSON object: Convert the resulting JSON string into a JSONObject.
3. Get the formulas array: Locate the array of formulas within the JSON object.
4. Create an ArrayList for formulas: Initialize an ArrayList>` to store the formulas and their URLs.
5. Iterate through the formulas: Loop through the array of formulas in the JSON object and extract the "formule" and "url" values for each formula.
6. Populate the ArrayList: For each formula, create a HashMap containing the "formule" and "url" key-value pairs, and add it to the ArrayList.
7. Configure the ListView: Adapt the ListView in your layout to use an ArrayAdapter or BaseAdapter that wraps the ArrayList of formulas. This will display the formulas in the ListView.

For further assistance with JSON parsing, refer to the provided external resource.

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