io.flutter.embedding.engine.plugins.service

Interface ServiceControlSurface

public interface ServiceControlSurface

Control surface through which a Service attaches to a FlutterEngine.

A Service that contains a FlutterEngine should coordinate itself with the FlutterEngine's ServiceControlSurface.

Method Summary

Modifier and Type	Method and Description
void	attachToService(Service service, android.arch.lifecycle.Lifecycle lifecycle, boolean isForeground) Call this method from the Service that is running the FlutterEngine that is associated with this ServiceControlSurface.
void	detachFromService() Call this method from the Service that is attached to this ServiceControlSurfaces's FlutterEngine when the Service is about to be destroyed.
void	onMoveToBackground() Call this method from the Service that is attached to this ServiceControlSurface's FlutterEngine when the Service goes from foreground to background.
void	onMoveToForeground() Call this method from the Service that is attached to this ServiceControlSurface's FlutterEngine when the Service goes from background to foreground.

Method Detail

attachToService

void attachToService(@NonNull
                     Service service,
                     @Nullable
                     android.arch.lifecycle.Lifecycle lifecycle,
                     boolean isForeground)

Call this method from the Service that is running the FlutterEngine that is associated with this ServiceControlSurface.

Once a Service is created, and its associated FlutterEngine is executing Dart code, the Service should invoke this method. At that point the FlutterEngine is considered "attached" to the Service and all ServiceAware plugins are given access to the Service.

isForeground should be true if the given Service is running in the foreground, false otherwise.

detachFromService

void detachFromService()

Call this method from the Service that is attached to this ServiceControlSurfaces's FlutterEngine when the Service is about to be destroyed.

This method gives each ServiceAware plugin an opportunity to clean up its references before the is destroyed.

onMoveToForeground

void onMoveToForeground()

Call this method from the Service that is attached to this ServiceControlSurface's FlutterEngine when the Service goes from background to foreground.

onMoveToBackground

void onMoveToBackground()

Call this method from the Service that is attached to this ServiceControlSurface's FlutterEngine when the Service goes from foreground to background.