Android DirectoryChooser

A simple directory chooser you can integrate into your Android app.

This version of the library has no additional dependencies, but requires Android v11+ to work. There is, however, a pre-v11-branch that supports down to v7 using ActionBarSherlock.

You can download the sample app from the Play Store:

Based on the DirectoryChooser from the excellent AntennaPod App by danieloeh.

As stand-alone Activity	As DialogFragment

Usage

For a full example see the sample app in the repository.

From Maven Central

Library releases are available on Maven Central, snapshots can be retrieved from Sonatype:

Release (SDK 11+)

Gradle

compile 'net.rdrei.android.dirchooser:library:3.2@aar'

Maven

<dependency>
  <groupId>net.rdrei.android.dirchooser</groupId>
  <artifactId>library</artifactId>
  <version>3.2</version>
  <type>aar</type>
</dependency>

Release (SDK 7+)

Gradle

compile 'net.rdrei.android.dirchooser:library:1.0-pre-v11@aar'

Maven

<dependency>
  <groupId>net.rdrei.android.dirchooser</groupId>
  <artifactId>library</artifactId>
  <version>1.0-pre-v11</version>
  <type>aar</type>
</dependency>

Snapshot (SDK 11+)

compile 'net.rdrei.android.dirchooser:library:3.2-SNAPSHOT@aar'

Snapshot (SDK 4+)

compile 'net.rdrei.android.dirchooser:library:2.0-pre-v11-SNAPSHOT@aar'

As Library Project

Alternatively, check out this repository and add it as a library project.

$ git clone https://github.com/passy/Android-DirectoryChooser.git

Import the project into your favorite IDE and add android.library.reference.1=/path/to/Android-DirectoryChooser/library to your project.properties.

Manifest

You need to declare the DirectoryChooserActivity and request the android.permission.WRITE_EXTERNAL_STORAGE permission.

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
...
<application>
    <activity android:name="net.rdrei.android.dirchooser.DirectoryChooserActivity" />
</application>

Activity

To choose a directory, start the activity from your app logic:

final Intent chooserIntent = new Intent(this, DirectoryChooserActivity.class);

final DirectoryChooserConfig config = DirectoryChooserConfig.builder()
        .newDirectoryName("DirChooserSample")
        .allowReadOnlyDirectory(true)
        .allowNewDirectoryNameModification(true)
        .build();

chooserIntent.putExtra(DirectoryChooserActivity.EXTRA_CONFIG, config);

// REQUEST_DIRECTORY is a constant integer to identify the request, e.g. 0
startActivityForResult(chooserIntent, REQUEST_DIRECTORY);

Handle the result in your onActivityResult method:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == REQUEST_DIRECTORY) {
        if (resultCode == DirectoryChooserActivity.RESULT_CODE_DIR_SELECTED) {
            handleDirectoryChoice(data
                .getStringExtra(DirectoryChooserActivity.RESULT_SELECTED_DIR));
        } else {
            // Nothing selected
        }
    }
}

Fragment

You can also use the underlying DialogFragment for even better integration. Whether you use the Fragment as a Dialog or not is completely up to you. All you have to do is implement the OnFragmentInteractionListener interface to respond to the events that a directory is selected or the user cancels the dialog:

public class DirChooserFragmentSample extends Activity implements
    DirectoryChooserFragment.OnFragmentInteractionListener {

    private TextView mDirectoryTextView;
    private DirectoryChooserFragment mDialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog);
        final DirectoryChooserConfig config = DirectoryChooserConfig.builder()
                .newDirectoryName("DialogSample")
                .build();
        mDialog = DirectoryChooserFragment.newInstance(config);

        mDirectoryTextView = (TextView) findViewById(R.id.textDirectory);

        findViewById(R.id.btnChoose)
                .setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        mDialog.show(getFragmentManager(), null);
                    }
                });
    }

    @Override
    public void onSelectDirectory(@NonNull String path) {
        mDirectoryTextView.setText(path);
        mDialog.dismiss();
    }

    @Override
    public void onCancelChooser() {
        mDialog.dismiss();
    }
}

If calling the directory chooser from your own fragment, be sure to set the target fragment first:

@Override
public void onClick(View v) {
    mDialog.setTargetFragment(this, 0);
    mDialog.show(getFragmentManager(), null);
}

Configuration

The Directory Chooser is configured through a parcelable configuration object, which is great because it means that you don't have to tear your hair out over finicky string extras. Instead, you get auto-completion and a nice immutable data structure. Here's what you can configure:

newDirectoryName : String (required)

Name of the directory to create. User can change this name when he creates the folder. To avoid this use allowNewDirectoryNameModification argument.

initialDirectory : String (default: "")

Optional argument to define the path of the directory that will be shown first. If it is not sent or if path denotes a non readable/writable directory or it is not a directory, it defaults to android.os.Environment#getExternalStorageDirectory().

allowReadOnlyDirectory : Boolean (default: false)

Argument to define whether or not the directory chooser allows read-only paths to be chosen. If it false only directories with read-write access can be chosen.

allowNewDirectoryNameModification : Boolean (default: false)

Argument to define whether or not the directory chooser allows modification of provided new directory name.

Example

final DirectoryChooserConfig config = DirectoryChooserConfig.builder()
        .newDirectoryName("DialogSample")
        .allowNewDirectoryNameModification(true)
        .allowReadOnlyDirectory(true)
        .initialDirectory("/sdcard")
        .build();

Apps using this

Popcorn Time for Android	Emby for Android	Downloader for SoundCloud	Wallpaper Changer	XnRetro	InstaSave
ML Manager	AutoGuard	Companion for Band	Swallow Server	Photo Map

To add your own app, please send a pull request.

Releasing

Preparation

To release a new snapshot on Maven Central, add your credentials to ~/.gradle/gradle.properties (you get them from http://oss.sonatype.org) as well as your signing GPG key:

signing.keyId=0x18EEA4AF
signing.secretKeyRingFile=/home/pascal/.gnupg/secring.gpg

NEXUS_USERNAME=username
NEXUS_PASSWORD=password

Staging

To upload a new snapshot, just run gradle's uploadArchives command:

gradle :library:uploadArchives

Release

Update versions and remove -SNAPSHOT suffixes.

gradle build :library:uploadArchives

License

Copyright 2013-2016 Pascal Hartig

Licensed 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.

Thanks

Sample App icon by Frank Souza.