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How to Pass Parameters Between Pages in Flutter

Discover how to efficiently `pass multiple parameters` from one page to another in Flutter using examples and explanations. --- This video is based on the question https://stackoverflow.com/q/68372548/ asked by the user 'Imzar Ahamed' ( https://stackoverflow.com/u/12290394/ ) and on the answer https://stackoverflow.com/a/68373462/ provided by the user 'Watery Desert' ( https://stackoverflow.com/u/10993985/ ) 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: How to pass many parameters from one page to another in flutter 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. --- How to Pass Parameters Between Pages in Flutter When developing applications with Flutter, you might find yourself needing to pass multiple parameters from one page to another. Understanding how to do this effectively can save you numerous headaches in your development process. Let's dive into a practical way of handling parameters in Flutter. The Challenge: Passing Multiple Parameters Imagine you're building a Flutter application where you have a list of products, and you want to display more details about a selected product on another page. You need to pass various parameters, such as serviceId and service type, to the next page for it to display relevant information. Here's a typical scenario for passing data in Flutter. The Solution: Using the Constructor of the Destination Page In Flutter, you can easily pass parameters to another page by defining them in the constructor of the destination widget. Let's break this down step by step: Step 1: Define Your Destination Widget Start by defining your page (in our case, CategoryPage) to accept parameters in its constructor. Here is how your widget could look: [[See Video to Reveal this Text or Code Snippet]] Step 2: Initialize the Parameters You will access the parameters inside your State class using the widget keyword. This allows you to utilize the data you passed from the previous page easily. Here’s how you can initialize and access your parameters using the initState and build methods: [[See Video to Reveal this Text or Code Snippet]] Step 3: Navigating to the Destination Page The sender page is where you invoke navigation to the CategoryPage. Use the following code snippet to pass the intended parameters: [[See Video to Reveal this Text or Code Snippet]] Conclusion With these straightforward steps, you can effectively pass multiple parameters from one page to another in Flutter. This method not only makes your code cleaner but also maintains a clear structure that is easy to read and manage. Using the constructor of your widget to pass parameters can greatly enhance the functionality of your app without complicating your code. Remember, clarity and maintainability are key in development, so following best practices will set you up for success. Feel free to explore and experiment with this approach as you build your Flutter applications!