# FileSystemManager.readdir(Object object)

with Promise style call: Not supported

Mini Program plugin: Support, need to Mini Program base library version no less than 2.19.2

Read list of files in a directory

# parameter

# Object object

attribute	type	Default values	Required	Introductions
dirPath	string		yes	Directory path to read (Local path)

# Note

The readdir interface cannot access the file system root path(wxfile://)。 | | success | function | | no | Interface calls the successful callback function | | fail | function | | no | Interface calls failed callback functions | | complete | function | | no | Callback function at the end of an interface call (both successful and unsuccessful calls are executed) |

# object.success callback

# parameter

# Object res

attribute	type	Introductions
files	Array.&ltstring&gt	Specifies an array of file names in a directory.

# object.fail callback

# parameter

# Object res

attribute	type	Introductions
errMsg	string	Error message

res.errMsg Legal value

value	Introductions	Minimum version
fail No such file or directory ${dirPath}	Directory does not exist
fail not a directory ${dirPath}	dirPath Not a directory.
fail permission denied, open ${dirPath}	Specified filePath Path not read
fail sdcard not mounted	Android sdcard Mount failure

# sample code

const fs = wx.getFileSystemManager()
fs.readdir({
  dirPath: `${wx.env.USER_DATA_PATH}/example`,
  success(res) {
    console.log(res.files)
  },
  fail(res) {
    console.error(res)
  }
})

// Synchronous interface
try {
  const res = fs.readdirSync(`${wx.env.USER_DATA_PATH}/example`)
  console.log(res)
} catch(e) {
  console.error(e)
}