AsyncSnapshotListenerCallback<R, SNAPSHOT_TYPE extends AsyncSnapshot<R>> typedef

AsyncSnapshotListenerCallback<R, SNAPSHOT_TYPE extends AsyncSnapshot<R>> = void Function(SNAPSHOT_TYPE snapshot)

Signature of callbacks that have snapshots in argument which describes state of an asynchronous computation.

Implementation

typedef AsyncSnapshotListenerCallback<R, SNAPSHOT_TYPE extends AsyncSnapshot<R>>
    = void Function(SNAPSHOT_TYPE snapshot);