sla-000/flutter_debouncer
Tap debounce simplifying widget and utils
baixar do githubDescription
Tap debounce simplifying widget. Wrap your button widget in TapDebounce widget and any taps will be
disabled while tap callback is in progress.
Manual
Initial code
Assume your code with some button look like this:
//...
child: RaisedButton(
color: Colors.blue,
disabledColor: Colors.grey,
onPressed: () async => await someLongOperation(), // your tap handler
child: const Text('Short'),
);
//...
and you do not want user to be able to press the button again several times and start other
someLongOperation functions. Example is a Navigator pop function - it can take a few hundred of
millis to navigate and user can press the button several times, and that will lead to undesired pop
several screens back instead of one.
Wrap code to TapDebouncer
Wrap this code to Debouncer and move RaisedButton onPressed contents to Debouncer onTap:
//...
child: TapDebouncer(
onTap: () async => await someLongOperation(), // your tap handler moved here
builder: (BuildContext context, TapDebouncerFunc? onTap) {
return RaisedButton(
color: Colors.blue,
disabledColor: Colors.grey,
onPressed: onTap, // It is just onTap from builder callback
child: const Text('Short'),
);
},
),
//...
Debouncer will disable the RaisedButton by setting onPressed to null while onTap is being executed.
Add delay after tap process
You can add optional delay to be sure that the button is disabled some time after someOperation is
called.
//...
onTap: () async {
await someOperation();
await Future<void>.delayed(const Duration(milliseconds: 1000));
},
//...
Use cooldown instead of delay
You can fill optional cooldown field with some Duration and avoid adding of Future.delayed at
the end of onTap callback, this will be done automatically:
//...
child: TapDebouncer(
cooldown: const Duration(milliseconds: 1000),
onTap: () async => await someLongOperation(), // your tap handler moved here
builder: (BuildContext context, TapDebouncerFunc? onTap) {
return RaisedButton(
color: Colors.blue,
disabledColor: Colors.grey,
onPressed: onTap, // It is just onTap from builder callback
child: const Text('Short'),
);
},
),
//...
Then your onTap could be changed to this:
//...
onTap: () async => await someOperation(),
//...
Cooldown behavior with exception
If someOperation will raise exception cooldown delay will also work, after exception.
Change look of busy widget (waiting for tap complete)
You can inspect value of onTap and change look of your widget:
//...
builder: (BuildContext context, TapDebouncerFunc? onTap) {
return RaisedButton(
color: Colors.blue,
onPressed: onTap,
// variant with manual test onTap for null in builder
child: onTap == null
? const Text('Wait...')
: const Text('Short'),
);
},
//...
Also you can use waitBuilder method to build new busy widget:
//...
builder: (BuildContext context, TapDebouncerFunc? onTap) {
//...
},
// variant with using waitBuilder instead of test onTap for null
waitBuilder: (BuildContext context, Widget child) {
return Stack(
children: <Widget>[
child,
const Center(child: CircularProgressIndicator()),
],
);
},
//...
waitBuilder will return original widget (built with onTap == null) as child
Example
See example application for details:
![](/images/banner-woo.jpg)
recomendações de excelentes projetos relacionados a sla-000/flutter_debouncer para download
AppFlowy
47859
AppFlowy is an open-source alternative to Notion. You are in charge of your data and customizations. Built with Flutter and Rust.
localsend
33797
An open-source cross-platform alternative to AirDrop
spotube
23772
🎧 Open source Spotify client that doesn't require Premium nor uses Electron! Available for both desktop & mobile!
revanced-manager
15035
💊 Application to use ReVanced on Android
gsy_github_app_flutter
14559
Flutter 超完整的开源项目,功能丰富,适合学习和日常使用。GSYGithubApp系列的优势:我们目前已经拥有Flutter、Weex、ReactNative、kotlin 四个版本。 功能齐全,项目框架内技术涉及面广,完成度高,持续维护,配套文章,适合全面学习,对比参考。跨平台的开源Github客户端App,更好的体验,更丰富的功能,旨在更好的日常管理和维护个人Github,提供更好更方便的驾车体验Σ( ̄。 ̄ノ)ノ。同款Weex版本 : https://github.com/CarGuo/GSYGithubAppWeex 、同款React Native版本 : https://github.com/CarGuo/GSYGithubApp 、原生 kotlin 版本 https://github.com/CarGuo/GSYGithubAppKotlin
dio
12249
A powerful HTTP client for Dart and Flutter, which supports global settings, Interceptors, FormData, aborting and canceling a request, files uploading and downloading, requests timeout, custom adapters, etc.
gopeed
11832
A modern download manager that supports all platforms. Built with Golang and Flutter.
bloc
11441
A predictable state management library that helps implement the BLoC design pattern
getx
9899
Open screens/snackbars/dialogs/bottomSheets without context, manage states and inject dependencies easily with Get.
flame
8846
A Flutter based game engine.
flutter_deer
7595
🦌 Flutter 练习项目(包括集成测试、可访问性测试)。内含完整UI设计图,更贴近真实项目的练习。Flutter practice project (including integration testing and accessibility testing). Contains complete UI design drawings for a more realistic practice project.
fish-redux
7343
An assembled flutter application framework.
hiddify-next
7232
Multi-platform auto-proxy client, supporting Sing-box, X-ray, TUIC, Hysteria, Reality, Trojan, SSH etc. It’s an open-source, secure and ad-free.
ente
6686
Fully open source, End to End Encrypted alternative to Google Photos and Apple Photos
fl_chart
6451
FL Chart is a highly customizable Flutter chart library that supports Line Chart, Bar Chart, Pie Chart, Scatter Chart, and Radar Chart.
pixez-flutter
6360
一个支持免代理直连及查看动图的第三方Pixiv flutter客户端
Flutter-Responsive-Admin-Panel-or-Dashboard
6355
Responsive Admin Panel or Dashboard using Flutter
aidea
6021
AIdea 是一款支持 GPT 以及国产大语言模型通义千问、文心一言等,支持 Stable Diffusion 文生图、图生图、 SDXL1.0、超分辨率、图片上色的全能型 APP。
riverpod
5828
A reactive caching and data-binding framework. Riverpod makes working with asynchronous code a breeze.
pikapika
5463
美观易用且无广告的漫画和游戏客户端,同时支持MacOS,Windows,Android,iOS。