菜单
Add the CheckInternet mixin to ensure network connectivity before action execution. Covers automatic error dialogs, combining with NoDialog for custom UI handling, and AbortWhenNoInternet for silent abort.
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/marcglasberg/async_redux --skill asyncredux-check-internet-mixin命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
基于 SOC 职业分类
正在显示 SKILL.md
| name | asyncredux-check-internet-mixin |
| description | Add the CheckInternet mixin to ensure network connectivity before action execution. Covers automatic error dialogs, combining with NoDialog for custom UI handling, and AbortWhenNoInternet for silent abort. |
The CheckInternet mixin verifies device connectivity before an action executes. If there's no internet connection, the action aborts and displays a dialog with the message: "There is no Internet. Please, verify your connection."
class LoadText extends AppAction with CheckInternet {
Future<AppState?> reduce() async {
var response = await http.get('https://api.example.com/text');
return state.copy(text: response.body);
}
}
The mixin works by overriding the before() method. If the device lacks connectivity, it throws a UserException which triggers the standard error dialog.
Override connectionException() to return a custom UserException:
class LoadText extends AppAction with CheckInternet {
@override
UserException connectionException(UserException error) {
return UserException('Unable to load data. Check your connection.');
}
Future<AppState?> reduce() async {
var response = await http.get('https://api.example.com/text');
return state.copy(text: response.body);
}
}
Use NoDialog alongside CheckInternet to suppress the automatic error dialog. This allows you to handle connectivity failures in your widgets using isFailed() and exceptionFor():
class LoadText extends AppAction with CheckInternet, NoDialog {
Future<AppState?> reduce() async {
var response = await http.get('https://api.example.com/text');
return state.copy(text: response.body);
}
}
Then handle the error in your widget:
Widget build(BuildContext context) {
if (context.isWaiting(LoadText)) {
return CircularProgressIndicator();
}
if (context.isFailed(LoadText)) {
var exception = context.exceptionFor(LoadText);
return Text('Error: ${exception?.message}');
}
return Text(context.state.text);
}
Use AbortWhenNoInternet for silent failure when offline. The action aborts without throwing errors or displaying dialogs—as if it had never been dispatched:
class RefreshData extends AppAction with AbortWhenNoInternet {
Future<AppState?> reduce() async {
var response = await http.get('https://api.example.com/data');
return state.copy(data: response.body);
}
}
This is useful for background refreshes or non-critical operations where user notification isn't needed.
This mixin combines three capabilities: internet verification, unlimited retry with exponential backoff, and non-reentrant behavior. It's ideal for essential operations like loading startup data:
class LoadAppStartupData extends AppAction with UnlimitedRetryCheckInternet {
Future<AppState?> reduce() async {
var response = await http.get('https://api.example.com/startup');
return state.copy(startupData: response.body);
}
}
Default retry parameters:
Track retry attempts via the attempts getter and customize logging through printRetries().
Important compatibility rules:
CheckInternet and AbortWhenNoInternet are incompatible with each otherCheckInternet nor AbortWhenNoInternet can be combined with UnlimitedRetryCheckInternetCheckInternet works well with Retry, NonReentrant, Throttle, Debounce, and optimistic mixinsTwo methods for simulating connectivity in tests:
Per-action simulation - Override internetOnOffSimulation within specific actions:
class LoadText extends AppAction with CheckInternet {
@override
bool? get internetOnOffSimulation => false; // Simulate offline
Future<AppState?> reduce() async {
// ...
}
}
Global simulation - Set forceInternetOnOffSimulation on the store:
var store = Store<AppState>(
initialState: AppState.initialState(),
);
store.forceInternetOnOffSimulation = false; // All actions see no internet
These mixins only detect device connectivity status. They cannot verify:
For server-specific connectivity checks, implement additional validation in your action's reduce() method or before() method.
URLs from the documentation: