Refactor to Android X
At the Google I/O 2018 AndroidX is announced. To prevent any miscommunication about what parts are from Android os and which parts are from extra supporting libraries. As app developer I'm always looking to improve how to build app and use the best tool / libraries to get maximal results. Migrate Android projects, using support libraries, to AndroidX to be ready for further updates. AndroidX packages With the implementation of AndroidX all API package naming is updated. Below we see an example of pre AndroidX packages com.android.support:appcompat-v7 and com.android.support.test.espresso . implementation 'com.android.support:appcompat-v7:27.1.1' implementation 'com.android.support.constraint:constraint-layout:1.1.0' implementation 'com.android.support:design:27.1.1' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.2' androidTestImplementation 'com.android