AppService

Start from API_LEVEL 3.0 . Please refer to API_LEVEL.

Register an App Service in the Mini Program, specify the lifecycle callback for the current App Service, etc. Each App Service file must call the AppService() constructor only once.

info

permission code: device:os.bg_service

Type

function AppService(option: Option): Result

Parameters

Option

Property	Type	Required	DefaultValue	Description	API_LEVEL
state	object	N	-	A data object mounted on the appService instance that can be used to store the current state of the service	3.0
onInit	(params?: string) => void	N	-	This function is triggered when the service is started. If the service is started with params, the params string can be obtained in the onInit method	3.0
onDestroy	() => void	N	-	The onDestroy lifecycle function is triggered when the service is destroyed	3.0

Result

Type	Description
unknown	AppService instance

Example

appService.js

AppService({
  state: {
    text: 'Hello Zepp OS',
  },
  onInit() {
    console.log('onInit')
  },
})