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Learn how to properly save `Geopoint` coordinates in Firebase Firestore using Flutter. We'll guide you through the process step-by-step!
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How to Store Geopoint in Firebase with Flutter

In today's digital world, many applications require precise location data. If you're working with Flutter and Firebase, one common requirement is storing geographical coordinates as Geopoint objects rather than simple strings. This is particularly useful for apps that feature maps or location-based services, such as a shop locator. In this guide, we are going to walk you through the process of saving Geopoint coordinates in Firebase Firestore using Flutter, ensuring that the coordinates are stored correctly for later retrieval and use.

Understanding the Problem

You've set up a simple user interface with a TextFormField where users can input the name of their shop and its respective geographical coordinates. Upon pressing the submit button, the data is intended to be sent to your Firestore collection. However, the challenge arises in how to store these geographical coordinates as Geopoint data types instead of plain strings. This is an important distinction as storing them as Geopoint allows for more efficient querying and distance calculations later on.

The Solution: Using GeoPoint Object in Firestore

The Firebase Firestore plugin in Flutter provides a special type called GeoPoint, which is specifically designed to store geographic coordinates. Here's how you can implement this in your code.

Step 1: Update Your Data Submission Logic

You will need to modify the way you handle the submission of locationCoords. Instead of trying to access some property from _textEditingController5.GeoPoint, you will create a new GeoPoint instance using the latitude and longitude that you have stored in your text fields.

Example Code

Here is an example of how your button's onPressed function may look with the necessary modifications:

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

Explanation of the Code

Text Parsing: The string input for locationCoords is expected to contain latitude and longitude separated by a comma. Here, we split the string using split(',') and convert them to double data type, suitable for the GeoPoint constructor.

GeoPoint Creation: The GeoPoint constructor is called with the respective latitude and longitude. This ensures that what you're saving into Firestore is the correct format.

Firestore Add: Finally, the newly defined locationCoords is included within the data map being sent to Firestore during the add operation.

Conclusion

Storing Geopoint coordinates in Firebase Firestore using Flutter can be a straightforward process once you are familiar with the GeoPoint class. By ensuring you are creating a GeoPoint object from user inputs, you can efficiently store and manage geographical data in your Flutter applications. Follow the steps above, and you will have the geolocation data properly saved in your database without any issues.

Now that you've learned how to store Geopoint objects in Firebase, go ahead and implement this in your project! Happy coding!