Android App Development
iOS App Development
Flutter App Development
Cross Platform App Development
Hire on-demand project developers and turn your idea into working reality.
Big thanks to Webkul and his team for helping get Opencart 3.0.3.7 release ready!
Deniel Kerr
Founder. Opencart
Top Partners
Updated 1 February 2024
In today’s blog, we’re going to take a closer look at Flutter Hooks. Flutter Hooks is a fantastic library that takes the development of Flutter to the next level.
If you’re using Flutter, you’ve probably heard of Flutter Hooks. It’s an extension to Flutter that gives you a more organized way to manage state and other side effects. Basically, it’s a React Hooks-style extension that gives you a bunch of hooks to keep track of your widget’s state.
This makes it way easier to write the code you need and helps avoid the common issues and mistakes that come with keeping track of your Flutter app’s state.
Additionally, you may read more about Mobikul’s Flutter app development services.
StatefulWidget
useEffect
useMemo
Create new project and add the following dependency into your project
useState : Manages local state of app we do not need to use setState. Allows to create a variable and subscribe to it, Update the UI in response of user interaction or any other event.
useEffect : With this hook we do not need to worry about initializing something in initstate() or manually disposing the controllers and streams in dispose() method.
useMemoized : Hook memoizes complex objects to achieve optimal performance in an app. Caches the Heavy functions in first call, Later when the HookWidget rebuilds, useMemoized will return the previously created instance.
useMemoized
useRef : allows you to create mutable references to elements, values, or objects in your functional Flutter components without causing the component to re-render when the referenced value changes.
useRef
useCallback : hook is a powerful tool that allows you to memoize functions and prevent unnecessary re-creations of functions during re-renders.
useCallback
Create a new dart class (CounterApp), Import flutter_hooks and extends CounterApp class with HookWidget as shown below :
Above example code contains state “counter”, which is managed with useState() Hook.
Learn more about state management in flutter.
useEffect method helps to remove boiler plate code of statefulWidget we can use this as shown below :
create a new stateless widget (TimerApp) and extends it with HookWidget and write code as shown below :
useMemoized memoized or cache the instance of complex object in memory.
useMemoized accept a callback function that passes to the hook then useMemoized call and store the result the result of function in memory.
In above code of useMemoized it has second optional arguments called list of keys similar to useEffect Hook.
This key argument is a dependency list that specifies whether the Memoized function executed when the widget is rerendered.
Use Memoized checks the keys of a widget when it rebuilds to see if the previous values have changed. If there is at least one change in the keys, then the function callback called and save new result in cache.
Create a new stateless widget CounterApp and extends with HookWidget as below :
useRef hook : allows you to create mutable references to values that persist across renders without causing the widget to rebuild.
It only store the value, it doesn’t make it available to render to the screen.
It helps to optimize your Flutter app’s performance by memoizing callback functions.
useCallback Hook works :
Thanks for reading this article ❤️
I hope this blog will help you to learn about how to use flutter hooks and you will be able to implement it. For more updates, make sure to keep following Mobikul Blogs to learn more about flutter and android.
Check out these interesting flutter topics:
Happy Learning ✍️
https://blog.logrocket.com/how-to-use-flutter-hooks/
Your email address will not be published. Required fields are marked*
Name*
Email*
Save my name email and website in this browser for the next time I comment.
Be the first to comment.
We use cookies to personalize your experience. By continuing to visit this website you agree to our use of cookies. Learn more about privacy policy
Name
Email
Subject
Enquiry or Requirement
If you have more details or questions, you can reply to the received confirmation email.