Future.wait() for multiple futures

Question

I\'m trying to catch the error when my device has no internet connection. I\'ve built out 2 future methods, 1 to import a json and 1 to look into the database. I have a futu

Answer 1

You can use Future.wait to wait for several Future to be completed.

body: FutureBuilder<List<FlashCardList>>(
    future: Future.wait([
        fetchFlashCardList(),
        fetchFlashCardListFromDB(),
    ]),

Answer 2

Here's an example based on Alexandre's answer (As I found myself looking for how to handle results):

FutureBuilder(
    future: Future.wait([
         firstFuture(), // Future<bool> firstFuture() async {...}
         secondFuture(),// Future<bool> secondFuture() async {...}
         //... More futures
    ]),
    builder: (
       context, 
       // List of booleans(results of all futures above)
       AsyncSnapshot<List<bool>> snapshot, 
    ){

       // Check hasData once for all futures.
       if (!snapshot.hasData) { 
          return CircularProgressIndicator();
       }

       // Access first Future's data:
       // snapshot.data[0]

       // Access second Future's data:
       // snapshot.data[1]

       return Container();

    }
);