UnicornFilePicker

Additional

Language
Java
Version
1.0.2 (Mar 28, 2021)
Created
Jan 6, 2021
Updated
Apr 3, 2021
Owner
Abhishek Tiwari (abhishekti7)
Contributor
Abhishek Tiwari (abhishekti7)
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Unicorn File Picker

Unicorn File Picker is a library designed to package a powerful file selector for android. You can:

  • Start the file picker activity from any activity or fragment
  • Select single or multiple files
  • Use as a Directory Picker
  • Filter out files you want to display
  • Add custom theme or use default theme options (Light & Dracula)
  • And much more which you have to try out for yourself
Unicorn Dracula Unicorn Default Custom Theme

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Gradle:

repositories {
    maven { url β€˜https://jitpack.io’ }
}

dependencies {
    implementation 'com.github.abhishekti7:UnicornFilePicker:$latest_version'
}

How do I use Unicorn File Picker?

Permission

The library requires two permissions:

  • android.permission.READ_EXTERNAL_STORAGE
  • android.permission.WRITE_EXTERNAL_STORAGE

If you are targeting Android 6.0+, you need to handle runtime permission request before next step.

Also, don't forget to add requestlegacyexternalstorage=true for Android 10.

Simple usage snippet


Start UnicornFilePicker from current Activity or Fragment:

UnicornFilePicker.from(MainActivity.this)
                    .addConfigBuilder()
                    .selectMultipleFiles(false)
                    .showOnlyDirectory(true)
                    .setRootDirectory(Environment.getExternalStorageDirectory().getAbsolutePath())
                    .showHiddenFiles(false)
                    .setFilters(new String[]{"pdf", "png", "jpg", "jpeg"})
                    .addItemDivider(true)
                    .theme(R.style.UnicornFilePicker_Dracula)
                    .build()
                    .forResult(Constants.REQ_UNICORN_FILE);

Themes

There are two built-in themes you can use to start UnicornFilePicker:

  • R.style.UnicornFilePicker_Default (light mode)
  • R.style.UnicornFilePicker_Dracula (dark mode)

You can also define your own custom theme.

Receive Result

In onActivityResult() callback of the starting Activity or Fragment:

List<String> mSelected_files;

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_CODE_CHOOSE && resultCode == RESULT_OK) {
        ArrayList<String> files = data.getStringArrayListExtra("filePaths");
        for(String file : files){
            Log.e(TAG, file);
        }
    }
}

PLEASE NOTE:

API >= 21 && API <=28

The file picker works great on legacy android versions and there's is no need for any additional configuration.

API 29

You need to add the following line to your manifest file if you want to use this picker on android 10 for atleast a few months.

    android:requestLegacyExternalStorage="true"

This line indicates to the operating system that we want to opt out of the new Scoped Storage system.

API > 29 (WIP)

Unfortunately this library has no stable support for file access on Android 11+. Behaviour noticed on Android 11 -> While the file picker works, the only files that are displayed are the media files which include images, videos, audio, etc. This is because of the introduction of the Google's infamous new storage model called Scoped Storage which aims to improve file security. You can read all about this here: Scoped Storage

This feature is currently a work-in-progress along with many other awesome things on the roadmap. If you feel you can add value to this feature then please see the section on Contributing.


Contributing

UnicornFilePicker is an Open Source Project

LICENSE

Copyright [2021] [Abhishek Tiwari]

   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.