If a future doesn’t produce a usable value , then the future’s type is Future<void> . A future can be in one of two states: uncompleted or completed. When you call a function that returns a future, the function queues up work to be done and returns an uncompleted future.
Read moreHow do you get the future object in Flutter?
get() method returns a Future object : Calling a function that returns a Future, will not block your code, that’s why that function is called asynchronous. Instead, it will immediately return a Future object, which is at first uncompleted. Future<T> means that the result of the asynchronous operation will be of type T .
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Sometimes you don’t want to turn the function into a Future or mark it async, so the other way to handle a Future is by using the . then function . It takes in a function that will be called with the value type of your Future. It’s similar to a Promise in JavaScript without the resolve, reject explicitness.30 Eyl 2020
Read moreHow do you use Future delay in Flutter?
How to Run Code After Time Delay in Flutter App
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