Streams in Flutter/Dart are a powerful way to handle asynchronous data and events. They allow you to work with sequences of data that arrive asynchronously over time[1][2].
Some key points about Streams:
- Streams are like pipes that push values into one end, which listeners on the other end can pick up[2]
- A stream can have multiple listeners, all of which receive the same values[2]
- Streams are ideal for handling real-time data and updating the UI in response to streamed data[2]
- Dart has two main classes for asynchronous programming: Future (single value) and Stream (sequence of values)[1]
- Streams can be either single subscription (one listener) or broadcast (multiple listeners)[2]
- The
StreamBuilder widget in Flutter makes it easy to rebuild the UI whenever a stream emits a new event[2]
To create a stream, you ...