forceAppUpdate method
As a rule, Flutter knows which widget to update, so this command is rarely needed. We can mention situations where you use const so that widgets are not updated with setState, but you want it to be forcefully updated when an event like language change happens. using context to make the widget dirty for performRebuild() is a viable solution. However, in situations where this is not possible, or at least, is not desired by the developer, the only solution for updating widgets that Flutter does not want to update is to use reassemble to forcibly rebuild all widgets. Attention: calling this function will reconstruct the application from the sketch, use this with caution. Your entire application will be rebuilt, and touch events will not work until the end of rendering.
Implementation
Future<void> forceAppUpdate() async {
await engine.performReassemble();
}