FileSystemManager.copyFile

Introduction

Copies a file.

Usage Restrictions

Requires basic library version 3.0.0 or higher.

Parameters

Object object

Property	Type	Default	Required	Description
srcPath	string		Yes	Source file path (relative path)
destPath	string		Yes	Destination file path (relative path)
success	function		No	Callback function for successful API call
fail	function		No	Callback function for failed API call
complete	function		No	Callback function called after API call completion (executed regardless of success or failure)

object.success Callback Function

Parameters

Object res

Property	Type	Description
success	string	true-Successful

object.fail Callback Function

Parameters

Object res

Property	Type	Description
errMsg	string	Error message
success	string	false-Failed

errMsg Description

Error message	Explanation
parameter error: F10001	Source path or destination path parameter is null
fail sdcard not mounted: F10002	Android sdcard mount failed
fail the maximum size of the file storage limit exceeded: F10004	Insufficient storage space
fail permission denied: F10005, copyFile ${srcPath} -> ${destPath}	Copy failed, specified destination file path does not have write permission
fail no such file or directory: F10007, copyFile ${srcPath} -> ${destPath}	Source file does not exist, or the parent directory of the destination file path does not exist

Sample Code

// pages/index/index.js
Page({
  copyFile() {
    const fs = dlt.getFileSystemManager();
    fs.copyFile({
      srcPath: `${dlt.env.USER_DATA_PATH}/hello.txt`,
      destPath: `${dlt.env.USER_DATA_PATH}/hello_copy.txt`,
      success(res) {
        console.log(res);
      },
      fail(res) {
        console.error(res);
      },
    });
  },
});