Learning Flutter Widgets, Widget 6 – FutureBuilder

FutureBuilder<T> class

Widget that builds itself based on the latest snapshot of interaction with a Future.

The future must have been obtained earlier, e.g. during State.initStateState.didUpdateWidget, or State.didChangeDependencies. It must not be created during the State.build or StatelessWidget.build method call when constructing the FutureBuilder. If the future is created at the same time as the FutureBuilder, then every time the FutureBuilder‘s parent is rebuilt, the asynchronous task will be restarted.

A general guideline is to assume that every build the method could get called every frame, and to treat omitted calls as an optimization.

Source Website: api.flutter.dev

https://api.flutter.dev/flutter/widgets/FutureBuilder-class.html

Er. Sandeep Singh Sidhu

I am the founder of CallStem Software LLP and Stem Technocrats IT Services, Blood Wallet, Apni Boli, and of course flutterfumes.com.
I am very passionate about technology and learning new things. I believe sharing knowledge is the most powerful way to learn. One who is an active learner is always an active contributor too because whatever you learn, you should implement.

I also love to write poetry, and talking to myself is my favorite all-time activity, no matter it is a program logic, emotional poetry, or a social issue.

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