Change name from react-native-fs for personal use. Use on your own risk.
Native file system manager for react-native
First you need to install react-native-file-manager:
npm install react-native-file-manager --saveIn XCode, in the project navigator, right click Libraries ➜ Add Files to [your project's name] Go to node_modules ➜ react-native-file-manager and add the .xcodeproj file
In XCode, in the project navigator, select your project. Add the lib*.a from the RNFileManager project to your project's Build Phases ➜ Link Binary With Libraries Click .xcodeproj file you added before in the project navigator and go the Build Settings tab. Make sure 'All' is toggled on (instead of 'Basic'). Look for Header Search Paths and make sure it contains both
Run your project (Cmd+R)
Android support is currently limited to only the DocumentDirectory. This maps to the app's files directory.
Make alterations to the following files:
android/settings.gradle
...
include ':react-native-file-manager'
project(':react-native-file-manager').projectDir = new File(settingsDir, '../node_modules/react-native-file-manager/android')android/app/build.gradle
...
dependencies {
...
compile project(':react-native-file-manager')
}- register module (in MainActivity.java)
import com.rnfm.RNFileManagerPackage; // <--- import
public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
......
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mReactRootView = new ReactRootView(this);
mReactInstanceManager = ReactInstanceManager.builder()
.setApplication(getApplication())
.setBundleAssetName("index.android.bundle")
.setJSMainModuleName("index.android")
.addPackage(new MainReactPackage())
.addPackage(new RNFileMangerPackage()) // <------- add package
.setUseDeveloperSupport(BuildConfig.DEBUG)
.setInitialLifecycleState(LifecycleState.RESUMED)
.build();
mReactRootView.startReactApplication(mReactInstanceManager, "ExampleRN", null);
setContentView(mReactRootView);
}
......
}// require the module
var RNFileManager = require('react-native-file-manager');
// get a list of files and directories in the main bundle
RNFileManager.readDir(RNFileManager.MainBundlePath)
.then((result) => {
console.log('GOT RESULT', result);
// stat the first file
return Promise.all([RNFileManager.stat(result[0].path), result[0].path]);
})
.then((statResult) => {
if (statResult[0].isFile()) {
// if we have a file, read it
return RNFileManager.readFile(statResult[1], 'utf8');
}
return 'no file';
})
.then((contents) => {
// log the file contents
console.log(contents);
})
.catch((err) => {
console.log(err.message, err.code);
});// require the module
var RNFileManager = require('react-native-file-manager');
// create a path you want to write to
var path = RNFileManager.DocumentDirectoryPath + '/test.txt';
// write the file
RNFileManager.writeFile(path, 'Lorem ipsum dolor sit amet', 'utf8')
.then((success) => {
console.log('FILE WRITTEN!');
})
.catch((err) => {
console.log(err.message);
});// create a path you want to delete
var path = RNFileManager.DocumentDirectoryPath + '/test.txt';
return RNFileManager.unlink(path)
// spread is a method offered by bluebird to allow for more than a
// single return value of a promise. If you use `then`, you will receive
// the values inside of an array
.spread((success, path) => {
console.log('FILE DELETED', success, path);
})
// `unlink` will throw an error, if the item to unlink does not exist
.catch((err) => {
console.log(err.message);
});The following constants are available on the RNFileManager export:
MainBundlePath (String) The absolute path to the main bundle directory
CachesDirectoryPath (String) The absolute path to the caches directory
DocumentDirectoryPath (String) The absolute path to the document directory
Reads the contents of path. This must be an absolute path. Use the above path constants to form a usable file path.
The returned promise resolves with an array of objects with the following properties:
name (String) - The name of the item
path (String) - The absolute path to the item
size (Number) - Size in bytes
Node.js style version of readDir that returns only the names. Note the lowercase d.
Stats an item at path.
The promise resolves with an object with the following properties:
ctime (Date) - The creation date of the item
mtime (Date) - The modification date of the item
size (Number) - The size of the item in bytes
isFile (Function) - Returns true when the item is a file
isDirectory (Function) - Returns true when the item is a directory
Reads the file at path and return contents. encoding can be one of utf8 (default), ascii, base64. Use base64 for reading binary files.
Note: you will take quite a performance hit if you are reading big files
Write the contents to filepath. encoding can be one of utf8 (default), ascii, base64. options optionally takes an object specifying the file's properties, like mode etc.
The promise resolves with a boolean.
Unlinks the item at filepath. If the item does not exist, an error will be thrown.
The promise resolves with an array, which contains a boolean and the path that has been unlinked. Tip: use spread to receive the two arguments instead of a single array in your handler.
Also recursively deletes directories (works like Linux rm -rf).
Create a directory at filepath. Automatically creates parents and does not throw if already exists (works like Linux mkdir -p).
IOS only: If excludeFromBackup is true, then NSURLIsExcludedFromBackupKey attribute will be set. Apple will reject apps for storing offline cache data that does not have this attribute.
Download file from url to filepath. Will overwrite any previously existing file.
If beginCallback is provided, it will be invoked once upon download starting when headers have been received and passed a single argument with the following properties:
jobId (Number) - The download job ID, required if one wishes to cancel the download. See stopDownload.
statusCode (Number) - The HTTP status code
contentLength (Number) - The total size in bytes of the download resource
headers (Map) - The HTTP response headers from the server
If progressCallback is provided, it will be invoked continuously and passed a single argument with the following properties:
contentLength (Number) - The total size in bytes of the download resource
bytesWritten (Number) - The number of bytes written to the file so far
Percentage can be computed easily by dividing bytesWritten by contentLength.
Abort the current download job with this ID. The partial file will remain on the filesystem.