harmony(鸿蒙)FormBindingData

  • 2022-08-09
  • 浏览 (596)

FormBindingData

The FormBindingData module provides APIs for widget data binding. You can use the APIs to create a FormBindingData object and obtain related information.

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.

Modules to Import

import formBindingData from '@ohos.application.formBindingData';

Required Permissions

None

formBindingData.createFormBindingData

createFormBindingData(obj?: Object|string): FormBindingData

Creates a FormBindingData object.

System capability: SystemCapability.Ability.Form

Parameters

Name Type Mandatory Description
obj Object or string No Data to be displayed on the JS widget. The value can be an object containing multiple key-value pairs or a string in JSON format. The image data is identified by “formImages”, and the content is multiple key-value pairs, each of which consists of an image identifier and image file descriptor. The final format is {“formImages”: {“key1”: fd1, “key2”: fd2}}.

Return value

Type Description
FormBindingData FormBindingData object created based on the passed data.

Example

  import featureAbility from '@ohos.ability.featureAbility';
  import fileio from '@ohos.fileio';
  let context=featureAbility.getContext();
  context.getOrCreateLocalDir((err,data)=>{
      let path=data+"/xxx.jpg";
      let fd = fileio.openSync(path);
      let obj = {
          "temperature": "21°",
          "formImages": {"image": fd}
      };
      let formBindingDataObj = formBindingData.createFormBindingData(obj);
  })

  

Attributes

Describes a FormBindingData object.

System capability: SystemCapability.Ability.Form

Name Readable Writable Type Mandatory Description
data Yes No Object Yes Data to be displayed on the JS widget. The value can be an object containing multiple key-value pairs or a string in JSON format.

你可能感兴趣的鸿蒙文章

harmony(鸿蒙)APIs

harmony(鸿蒙)API Reference Document Description

harmony(鸿蒙)BundleStatusCallback

harmony(鸿蒙)innerBundleManager(deprecated)

harmony(鸿蒙)distributedBundle

harmony(鸿蒙)Bundle

harmony(鸿蒙)Context

harmony(鸿蒙)DataUriUtils

harmony(鸿蒙)EnterpriseAdminExtensionAbility

harmony(鸿蒙)Work Scheduler Callbacks

0  赞