Question 79166 in Flutter Question posted in
The official Flutter documentation can be found here.

The predefined dispose function is not available in android studio – Flutter

i am creating a connection between my flutter application and firebase but when the time came to use the dispose function it is not defined

i’ve added the package as a library to the flutter and dart

dart pub add dispose

flutter pub add dispose

then i import the package in my class using :

import 'package:dispose/dispose.dart';

but nothing happedned also and the functon still undefined
the packages that i’ve added

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2

Answers


  1. 0

    Did you mean to use this instead?

    @override
void dispose() {
  yourStream.cancel(); //Cancel your subscription here.
  super.dispose();
}
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  2. 0

    The dispose() method is only available in Stateful widgets, convert your widget into a Stateful widget and it should let you use it as normal. This is always required if you use Controllers or Listeners to properly dispose them.

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