bloc_streambuilder

A stream builder that uses the value of a ValueObservable as initial data. This builder in combination with ValueSubject makes sure that the streambuilder does not need to build twice when the stream already has a value.

Example


     ValueObservable<int> stream = ValueSubject(seedValue: 0);

     ValueObservableBuilder(
       builder: (context, snapshot) { // Only called once and immediately with data if the stream has data

         print(
             "Build called with data: ${snapshot.data}, connectionState: ${snapshot.connectionState}"
         ); // First time it prints "Build called with data: 0, connectionState: ConnectionState.active"

         return new Text('${snapshot.data}');
       },
       stream: stream,
     )

Libraries

bloc_streambuilder

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]