FormExtensionContext

NOTE
The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Implements the context that provides the capabilities and APIs of FormExtension. This class is inherited from ExtensionContext.

FormExtensionContext.updateForm

updateForm(formId: string, formBindingData: formBindingData.FormBindingData, callback: AsyncCallback<void>): void

Updates a widget. This method uses a callback to return the result.

System capability: SystemCapability.Ability.Form

Parameters

Name	Type	Mandatory	Description
formId	string	Yes	ID of the widget that requests to be updated.
formBindingData	formBindingData.FormBindingData	Yes	New data of the widget.
callback	AsyncCallback<void>	Yes	Callback used to return the result indicating whether the method is successfully called.

Example

let obj2 = formBindingData.createFormBindingData({temperature:"22c", time:"22:00"});
this.context.updateForm(formId, obj2, (data)=>{
    console.log('FormExtension context updateForm, data:' + data);
});

FormExtensionContext.updateForm

updateForm(formId: string, formBindingData: formBindingData.FormBindingData): Promise<void>

Updates a widget. This method uses a promise to return the result.

System capability: SystemCapability.Ability.Form

Parameters

Name	Type	Mandatory	Description
formId	string	Yes	ID of the widget that requests to be updated.
formBindingData	formBindingData.FormBindingData	Yes	New data of the widget.

Return value

Type	Description
Promise<void>	Promise returned with the result indicating whether the method is successfully called.

Example

let obj2 = formBindingData.createFormBindingData({temperature:"22c", time:"22:00"});
this.context.updateForm(formId, obj2)
    .then((data)=>{
        console.log('FormExtension context updateForm, data:' + data);
    }).catch((error) => {
    console.error('Operation updateForm failed. Cause: ' + error);});