CODEWITHSUNDEEP
flutterflutter-streambuilder
March3April4
March3April4

Reputation: 2281

Flutter StreamController.broadcast, weird behavior

I have a static StreamController.

static StreamController<OrgSetting> setting = StreamController.broadcast();

void updateSetting(OrgSetting newSetting){
    setting.add(newSetting);
}

I have a page that uses the above streamController to display some value inside a listView.

StreamBuilder(stream : MyInfo.setting.stream, builder : (context, snapshot) {
     if(snapShot.hasData){
        return someView();
     }else {
        return defaultView();
     }
}

When I add a data to the streamController before I get into this ListView, it always says that the snapShot.hasData is false. When I add a data to the streamController after I get into this ListView, it works as I intented.

Is there some concept I'm missing about the streamController? Why is this happening?

Upvotes: 0

Views: 36

Answers (0)

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