FileSystemManager.saveFile

Introduction

Save temporary files locally. This interface will move the temporary file, so after a successful call, the tempFilePath will no longer be available. You can only save from a temporary file to a local storage file.

Usage Limitations

Supported in the base library version 3.0.0 or higher.

Parameters

Object object

Attribute	Type	Default	Required	Description
tempFilePath	string		Yes	Temporary storage file path (relative path)
filePath	string		Yes	Path to store the file (relative path)
success	function		No	Callback function for a successful API call
fail	function		No	Callback function for a failed API call
complete	function		No	Callback function for the end of the API call (executed for both successful and failed calls)

object.success

Callback Function

Parameters

Object res

Attribute	Type	Description
savedFilePath	string	File path after successful storage (relative path)
success	string	true-Set successfully

object.fail Callback Function

Parameters

Object res

Attribute	Type	Description
errMsg	string	Error message
success	string	false-Set failed

errMsg Description

Error Message	Description
parameter error: F10001	The original 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, open "${filePath}"	No write permission for the specified filePath path
fail no such file or directory: F10007 "${filePath}"	Parent directory does not exist
fail tempFilePath file not exist	The specified tempFilePath file cannot be found

Sample Code

// pages/index/index.js
Page({
  saveFile() {
    const fs = dlt.getFileSystemManager();
    fs.saveFile({
      tempFilePath: 'xxx.png',
      filePath: `${dlt.env.USER_DATA_PATH}/hello.png`,
      success(res) {
        console.log(res);
      },
      fail(res) {
        console.error(res);
      },
    });
  },
});