harmony 鸿蒙Widget Data Interaction

  • 2023-06-24
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Widget Data Interaction

The ArkTS widget framework provides the updateForm() and requestForm() APIs to proactively trigger widget updates. You can use LocalStorageProp to check the widget data to be updated.

WidgetLocalStorageProp

API System Capability Constraints
updateForm No 1. Invoked by the widget provider.
2. Allows only the widget provider to update its own widgets.
requestForm Yes 1. Invoked by the widget host.
2. Allows only the widget host to update the widgets added to it.

The following are the typical use cases of widget updates:

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