@@ -34,16 +34,15 @@ Description of ability lifecycle states:
You can override the lifecycle callbacks provided by the Page ability in the **app.js/app.ets** file. Currently, the **app.js** file provides only the **onCreate** and **onDestroy** callbacks, and the **app.ets** file provides the full lifecycle callbacks.
### Launch Type
The ability supports three launch types: singleton, multi-instance, and instance-specific.
The ability supports two launch types: singleton and multi-instance.
The **launchType** item in the **config.json** file is used to specify the launch type.
| Launch Type | Description |Description |
| ----------- | ------- |---------------- |
| standard | Multi-instance | A new instance is started each time an ability starts.|
| singleton | Singleton | Only one instance exists in the system. If an instance already exists when an ability is started, that instance is reused.|
| specified | Instance-specific| The internal service of an ability determines whether to create multiple instances during running.|
By default, **standard** is used.
By default, **singleton** is used.
## Development Guidelines
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@@ -260,9 +259,6 @@ export default {
},
}
```
### Development Example
## Samples
The following sample is provided to help you better understand how to develop a Page ability:
