my.downloadFile

2021-02-26 08:05

Download a file resource to a local location.

Sample Code

copy

my.downloadFile({
      url: 'http://img.example.com/example.jpg',
      success({ apFilePath }) {
        my.previewImage({
          urls: [apFilePath],
        });
      },
      fail(res) {
        my.alert({
          content: res.errorMessage || res.error,
        });
      },
    });

Parameters

Name	Type	Mandatory	Description
url	String	Yes	Downloading file address
header	Object	No	HTTP request Header
success	Function	No	Callback function upon call success
fail	Function	No	Callback function upon call failure
complete	Function	No	Callback function upon call completion (to be executed upon either call success or failure)

Success Callback Function

The incoming parameter is of the Object type with the following attributes:

Name	Type	Description
apFilePath	String	Temporary file storage location

Error Code

error	Description
12	Downloading failed
13	No right