Splash screen appears with delay

Question

I'm trying to implement the flutter Getx plugin and made some splash screen like this one:

class SplashScreen extends StatelessWidget {
  const SplashScreen({Key key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return GetBuilder(
      init: SplashController(),
        builder: (_) => Scaffold(
          body: Center(
            child: CircularProgressIndicator(),
          ),
        )
    );
  }
}

Then I wrote a splashcontroller like this one:

class SplashController extends GetxController {
  @override
  void onReady() {
    // TODO: implement onReady
    super.onReady();
    myFunctionCalculations();
    final Controller _controller = Get.put(controller());
    List items = _controller.items;
    if (items > 0) {
      Get.off(OnePlayerScreen());
    }
  }
}

Now from my HomeScreen I tap a button to navigate to this splash screen. It does nothing more only

onPressed: () {
                  Get.to(SplashScreen());
               }

The thing is that I want to show the circular indicator while my function is running and when it populates the List items to go to the Items Screen, but when I tap the button to get the splash screen it gets a while until the splash screen appear and then immediately goes to the Items screen, because meanwhile it populated the List. When I don't initialize the function it get immediately to the splash screen and I see the indicator.

Why I get this functionality? I thought it's supposed to show the loading indicator and meanwhile populate the List. But it seems when I tap the button from HomeScreen the function is initialized and when its donde the splashcreen appears. What am I doing wrong?

score 0 · Answer 1 · answered Dec 29 '20 at 20:42

0

Didn't you forget to call update() in your calculation function?

And it seems that your function is async, so you should await it before populating the list

answered Dec 29 '20 at 20:42

Andrey Gritsay

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I've tried await but it doesn't matter, the problem is that the splash screen doesn't appear until the calculations are done and it's supposed they should be done once it appears. – i6x86 Dec 29 '20 at 20:46

Splash screen appears with delay

1 Answers1