license: Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing,
     software distributed under the License is distributed on an
     "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     KIND, either express or implied.  See the License for the
     specific language governing permissions and limitations
     under the License.

LocalFileSystem

This object provides a way to obtain root file systems.

Methods

  • requestFileSystem: Requests a filesystem. (Function)
  • resolveLocalFileSystemURI: Retrieve a DirectoryEntry or FileEntry using local URI. (Function)

Constants

  • LocalFileSystem.PERSISTENT: Used for storage that should not be removed by the user agent without application or user permission.
  • LocalFileSystem.TEMPORARY: Used for storage with no guarantee of persistence.

Details

The LocalFileSystem object methods are defined on the window object.

Supported Platforms

  • Android
  • BlackBerry WebWorks (OS 5.0 and higher)
  • iOS
  • Windows Phone 7 and 8
  • Windows 8

Request File System Quick Example

function onSuccess(fileSystem) {
	console.log(fileSystem.name);
}

// request the persistent file system
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onSuccess, onError);

Resolve Local File System URI Quick Example

function onSuccess(fileEntry) {
	console.log(fileEntry.name);
}

window.resolveLocalFileSystemURI("file:///example.txt", onSuccess, onError);

Full Example

<!DOCTYPE html>
<html>
  <head>
    <title>Local File System Example</title>

    <script type="text/javascript" charset="utf-8" src="cordova-2.8.0.js"></script>
    <script type="text/javascript" charset="utf-8">

    // Wait for Cordova to load
    //
    document.addEventListener("deviceready", onDeviceReady, false);

    // Cordova is ready
    //
    function onDeviceReady() {
		window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, fail);
		window.resolveLocalFileSystemURI("file:///example.txt", onResolveSuccess, fail);
    }

	function onFileSystemSuccess(fileSystem) {
		console.log(fileSystem.name);
	}

	function onResolveSuccess(fileEntry) {
		console.log(fileEntry.name);
	}
	
	function fail(evt) {
		console.log(evt.target.error.code);
	}
	
    </script>
  </head>
  <body>
    <h1>Example</h1>
    <p>Local File System</p>
  </body>
</html>