libphonenumber-android

Android port of Google's libphonenumber.

Why?

Google's libphonenumber is a great library but it has a major flaw when used on Android. Internally the library uses Class.getResourceAsStream() method, which is very slow on Android. The goal of this library is to fix these two issues.

Download

Gradle:

repositories {
  mavenCentral()
}

dependencies {
  implementation 'io.michaelrocks:libphonenumber-android:9.0.30'
}

Development

Run unit checks with:

./gradlew check

Run instrumentation integration tests on the Gradle-managed local emulator with:

./gradlew integrationTest

For DexGuard users

If your project is obfuscated with DexGuard you may need to add the following line to the DexGuard configuration:

-keepresourcefiles assets/io/michaelrocks/libphonenumber/android/**

API differences

This library is not fully compatible with the original libphonenumber.

1. Every libphonenumber class is repackaged to io.michaelrocks.libphonenumber.android.
2. PhoneNumberUtil doesn't contain a getInstance() method so you have to create an instance of this class with one of PhoneNumberUtil.createInstance() methods and store it somewhere.
3. PhoneNumberUtil now has a createInstance(Context) method, which is a default way to obtain an instance of this class on Android.

License

Copyright 2025 Michael Rozumyanskiy

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.