sliver_fab

A wrapper widget allowing to place a widget on the edge of FlexibleSpacebar.

gif

gif

Example usage

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      body: new Builder(
        builder: (context) =>
        new SliverFab(
          floatingWidget: FloatingActionButton(
            onPressed: () =>
                Scaffold.of(context).showSnackBar(
                    SnackBar(content: Text("You clicked FAB!"))),
            child: Icon(Icons.add),
          ),
          floatingPosition: FloatingPosition(right: 16),
          expandedHeight: 256.0,
          slivers: <Widget>[
            new SliverAppBar(
              expandedHeight: 256.0,
              pinned: true,
              flexibleSpace: new FlexibleSpaceBar(
                title: new Text("SliverFab Example"),
                background: new Image.asset(
                  "img.jpg",
                  fit: BoxFit.cover,
                ),
              ),
            ),
            new SliverList(
              delegate: new SliverChildListDelegate(
                new List.generate(
                  30,
                      (int index) =>
                  new ListTile(title: new Text("Item $index")),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Installing

1. Depend on it

Add this to your package's pubspec.yaml file:

dependencies:
  sliver_fab: "^1.0.0"

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter packages get

Alternatively, your editor might support packages get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:sliver_fab/sliver_fab.dart';

Contributing

This package was made mostly for use case I needed. If you fill it is missing any features or you have found a bug, pull requests are very welcome!

Libraries

sliver_fab

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. [...]