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Скачать или смотреть How to Display Multiple Markers on Google Maps with Flutter

  • vlogize
  • 2025-09-29
  • 0
How to Display Multiple Markers on Google Maps with Flutter
Show multiple markers in google mapsgoogle mapsflutterdart
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Описание к видео How to Display Multiple Markers on Google Maps with Flutter

Learn how to easily display multiple markers on Google Maps in your Flutter application using Dart. Follow our step-by-step guide for a seamless experience.
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This video is based on the question https://stackoverflow.com/q/63676234/ asked by the user 'Jessica' ( https://stackoverflow.com/u/4861207/ ) and on the answer https://stackoverflow.com/a/63676522/ provided by the user 'Payam Asefi' ( https://stackoverflow.com/u/1656813/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Show multiple markers in google maps

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
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How to Display Multiple Markers on Google Maps with Flutter

Creating interactive maps in your Flutter applications can add significant value to your user experience. One of the most exciting features of Google Maps is the ability to display multiple markers. However, many developers encounter challenges when trying to display more than one marker on the map. If you’ve found yourself in this situation, don't worry! Here’s a comprehensive guide on how to effectively show multiple markers on Google Maps using Flutter.

Understanding the Problem

When working with Google Maps in Flutter, a common issue arises when you attempt to add multiple markers to the map. Often, developers find that only the first marker appears, leaving the others behind.

The initial attempts to create multiple markers generally look like this:

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

When returning the markers to the GoogleMap widget, you may only see the first marker rendered.

The Solution

To resolve this issue and successfully display multiple markers on Google Maps, follow these organized steps:

1. Create a List for Markers

Instead of using a Set, start by defining a List for the markers. This allows for proper management and visualization of multiple items.

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

2. Populate the Marker List

Next, inside your loop where you process the locations, make sure you add each marker to your new markers list.

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

Key Point: Validate that your marker data is accurate. If the LatLng coordinates are invalid, Google Maps will not display the markers. Testing with dummy data can be helpful during development.

3. Implement the GoogleMap Widget

With your list of markers correctly populated, you can now return it to the GoogleMap widget. Ensure the parameters are properly set, as shown below:

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

Final Tips

Test with Sample Data: If you face ongoing issues, test your implementation with hardcoded coordinates to ensure markings display as expected.

Debugging: Check console outputs for any anomalies in data entries, especially if markers fail to show.

User Experience: Consider adding visual enhancements like animations or clustering for a better user experience, especially when displaying numerous markers.

By following these steps, your Flutter application should now seamlessly display multiple markers on your Google Map. Happy coding!

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