Future<int to int flutter

then( (erg){ callHandler(erg);}, onError: (e){ print(e); }); 3) catchError allows you to chain the error handling after a series of futures. First its important to understand that then calls can be chained, so a then call which returns a Future can be chained to another then call.

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What you can do to resolve your future is, add a . then() after the function call so it waits for the future and when it comes, converts it to the data type that you want .28 Mar 2020