Скачать или смотреть How to Fix getInt and getString Issues in Your Java Android App

Discover the solution to your Java Android problems with `getInt` and `getString`. Learn how to properly use JSON objects to retrieve data from APIs in this informative guide.
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This video is based on the question https://stackoverflow.com/q/69984946/ asked by the user 'Usman Raoof' ( https://stackoverflow.com/u/17179545/ ) and on the answer https://stackoverflow.com/a/69985001/ provided by the user 'Mahmoud Afarideh' ( https://stackoverflow.com/u/4899974/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting getInt and getString Issues in Java Android Development

When working on a Java Android application, you might encounter a frustrating issue: trying to retrieve integer or string values from a JSON object but finding that the methods getInt and getString aren't functioning as expected. Instead, you see references to getAsInt and getAsString, and you might experience problems with member names not being accepted. This guide aims to clarify the situation and guide you through the solution.

Understanding the Problem

The Scenario

You're attempting to extract data from a JSON object that you've created by retrieving information from an API. For instance, you might be trying to set a weather state's name like so:

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

However, you're running into several issues:

The method getString isn't recognized.

You see suggestions for getAsInt and getAsString instead.

Member names, such as weather_state_name, aren't being accepted by your current approach.

The Solution

1. Use the Correct JSON Class

The root cause of your issue is that you are attempting to use the JsonObject class when you should actually be using JSONObject. The two classes serve similar purposes but belong to different libraries and have different method availability.

2. Import the Right Package

To resolve your issues, you need to ensure that you import the correct class. For Android development, use the following import statement:

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

3. Adjust Your Code

After making the import change, your code snippet for retrieving the weather_state_name should look like this:

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

4. Why This Matters

Correct Usage: Using JSONObject allows you to access standardized methods like getString() safely.

Better Compatibility: Most APIs you will work with in Android will return JSON objects that can be best handled with JSONObject.

Summary of Changes

Change from JsonObject to JSONObject.

Ensure method calls like getString() are available and recognized by your IDE.

Import the correct library package.

Conclusion

By following these steps, you should be able to effectively retrieve integers and strings from JSON objects in your Java Android applications. This will not only resolve the current issue but also enhance your understanding of how to manage JSON data effectively.

If you still face challenges after this process, consider looking at other parts of your API handling or checking for additional error messages that may provide further insights into the problem.

For any further questions, feel free to drop them in the comments below!