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[DEPRECATED] Android library that provides a file explorer to let users select files on external storage.

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zahrat/aFileChooser

 
 

aFileChooser - Android File Chooser

aFileChooser is an Android Library Project that simplifies the process of presenting a file chooser on Android 2.1+.

Intents provide the ability to hook into third-party app components for content selection. This works well for media files, but if you want users to be able to select any file, they must have an existing "file explorer" app installed. Because many Android devices don't have stock File Explorers, the developer must often instruct the user to install one, or build one, themselves. aFileChooser solves this issue.

Features:

  • Full file explorer
  • Simplify GET_CONTENT Intent creation
  • Hooks into Storage Access Framework
  • Determine MIME data types
  • Follows Android conventions (Fragments, Loaders, Intents, etc.)
  • Supports API 7+

screenshot-1 screenshot-2

Setup

Add aFileChooser to your project as an Android Library Project.

Add FileChooserActivity to your project's AndroidManifest.xml file with a fully-qualified name. The label and icon set here will be shown in the "Intent Chooser" dialog.

Important FileChooserActivity must have android:exported="true" and have the <intent-filter> set as follows:

<activity
    android:name="com.ipaulpro.afilechooser.FileChooserActivity"
    android:icon="@drawable/ic_chooser"
	android:enabled="@bool/use_activity"
    android:exported="true"
    android:label="@string/choose_file" >
    <intent-filter>
        <action android:name="android.intent.action.GET_CONTENT" />

        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.OPENABLE" />

        <data android:mimeType="*/*" />
    </intent-filter>
</activity>

If you want to use the Storage Access Framework (API 19+), include Ian Lake's LocalStorageProvider (included in this library) in your <application>:

<provider
    android:name="com.ianhanniballake.localstorage.LocalStorageProvider"
    android:authorities="com.ianhanniballake.localstorage.documents"
	android:enabled="@bool/use_provider"
    android:exported="true"
    android:grantUriPermissions="true"
    android:permission="android.permission.MANAGE_DOCUMENTS" >
        <intent-filter>
            <action android:name="android.content.action.DOCUMENTS_PROVIDER" />
        </intent-filter>
</provider>

Note that like a ContentProvider, the DocumentProvider authority must be unique. You should change com.ianhanniballake.localstorage.documents in your Manifest, as well as the LocalStorageProvider.AUTHORITY field.

Using FileChooserActivity and LocalStorageProvider together are redundant if you're only trying to insure your user has access to local storage. If this is the case, you should enable/disable based on the API level (above: @bool/use_provider and @bool/use_activity). See the aFileChooserExample project for their values.

Usage

Use startActivityForResult(Intent, int) to launch FileChooserActivity directly. FileChooserActivity returns the Uri of the file selected as the Intent data in onActivityResult(int, int, Intent). Alternatively, you can use the helper method FileUtils.createGetContentIntent() to construct an ACTION_GET_CONTENT Intent that will show an "Intent Chooser" dialog on pre Kit-Kat devices, and the "Documents UI" otherwise. E.g.:

private static final int REQUEST_CHOOSER = 1234;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Create the ACTION_GET_CONTENT Intent
    Intent getContentIntent = FileUtils.createGetContentIntent();
	
    Intent intent = Intent.createChooser(getContentIntent, "Select a file");
    startActivityForResult(intent, REQUEST_CHOOSER);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
    	case REQUEST_CHOOSER:	
        	if (resultCode == RESULT_OK) {
				
            	final Uri uri = data.getData();
				
				// Get the File path from the Uri
            	String path = FileUtils.getPath(this, uri);
				
				// Alternatively, use FileUtils.getFile(Context, Uri)
				if (path != null && FileUtils.isLocal(path)) {
					File file = new File(path);
				}
        	}
			break;
    }
}

A more robust example can be found in the aFileChooserExample project.

Note the FileUtils method to get a file path from a Uri (FileUtils.getPath(Context, Uri)). This works for File, MediaStore, and DocumentProvider Uris.

Credits

Developed by Paul Burke (iPaulPro) - paulburke.co

Translations by TomTasche, booknara, brenouchoa

Folder by Sergio Calcara from The Noun Project (ic_provider.png)

Document by Melvin Salas from The Noun Project (ic_file.png)

Licenses

Copyright (C) 2011 - 2013 Paul Burke

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.

Portions of FileUtils.java:

Copyright (C) 2007-2008 OpenIntents.org

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.

LocalStorageProvider.java:

Copyright (c) 2013, Ian Lake
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- Neither the name of the <ORGANIZATION> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	

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[DEPRECATED] Android library that provides a file explorer to let users select files on external storage.

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