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戴余标 3 years ago
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# flutter_background_service
A flutter plugin for execute dart code in background.
## Android
- No additional setting is required.
- To change notification icon, just add drawable icon with name `ic_bg_service_small`.
## iOS
- Enable `background_fetch` capability in xcode (optional), if you wish ios to execute `IosConfiguration.onBackground` callback.
- For iOS 13 (using `BGTaskScheduler`), insert lines below into your ios/Runner/Info.plist
```plist
<key>BGTaskSchedulerPermittedIdentifiers</key>
<array>
<string>dev.flutter.background.refresh</string>
</array>
```
## Usage
- Call `FlutterBackgroundService.configure` to configure handler that will be executed by the Service.
- Call `FlutterBackgroundService.start` to start the Service if `autoStart` is not enabled.
- Since the Service using Isolates, You won't be able to share reference between UI and Service. You can communicate between UI and Service using `invoke()` and `on(String method)`.
## Migration
- `sendData()` renamed to `invoke(String method)`
- `onDataReceived()` renamed to `on(String method)`
- Now you have to use `ServiceInstance` object inside `onStart` method instead of creating a new `FlutterBackgroundService` object. See the example project.
- Only use `FlutterBackgroundService` class in UI Isolate and `ServiceInstance` in background isolate.
## FAQ
### Why the service not started automatically?
Some android device manufacturers have a custom android os for example MIUI from Xiaomi. You have to deal with that policy.
### Service killed by system and not respawn?
Try to disable battery optimization for your app.
## Do you like my work?
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