File Interaction

NOTE

• The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
• The APIs of this module will be deprecated and are not recommended for use. An exception will be thrown if any of the APIs is called.

Modules to Import

import document from '@ohos.document';

document.choose

choose(types? : string[]): Promise<string>

Chooses files of the specified types using the file manager. This API uses a promise to return the result.

System capability: SystemCapability.FileManagement.UserFileService

Parameters

Return value

Example

let types = [];
document.choose(types);

document.choose

choose(callback:AsyncCallback<string>): void

Chooses a file using the file manager. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.FileManagement.UserFileService

Parameters

Example

let uri = "";
document.choose(function(err, uri) {
      // Do something with the URI. 
});

document.choose

choose(types:string[], callback:AsyncCallback<string>): void

Chooses files using the file manager. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.FileManagement.UserFileService

Parameters

Example

let types = [];
let uri = "";
document.choose(types, function(err, uri) {
      // Do something with the URI. 
});

document.show

show(uri:string, type:string):Promise<void>

Opens a file. This API uses a promise to return the result.

System capability: SystemCapability.FileManagement.UserFileService

Parameters

Return value

Example

let type = "";
let uri = "";
document.show(uri, type);

document.show

show(uri:string, type:string, callback:AsyncCallback<void>): void

Opens a file. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.FileManagement.UserFileService

Parameters

Example

let type = "";
let uri = "";
document.show(uri, type, function(err) {
      //do something
});