Find your Android app uses old support library or not

android_find_support_library_useage.sh

# see also https://developer.android.com/jetpack/androidx/migrate/artifact-mappings for all the artifacts which are mapped androidx
./gradlew :app:dependencies | grep -e android.arch.core:common -e android.arch.core:core -e android.arch.core:core-testing -e android.arch.core:runtime -e android.arch.lifecycle:common -e android.arch.lifecycle:common-java8 -e android.arch.lifecycle:compiler -e android.arch.lifecycle:extensions -e android.arch.lifecycle:livedata -e android.arch.lifecycle:livedata-core -e android.arch.lifecycle:reactivestreams -e android.arch.lifecycle:runtime -e android.arch.lifecycle:viewmodel -e android.arch.paging:common -e android.arch.paging:runtime -e android.arch.paging:rxjava2 -e android.arch.persistence.room:common -e android.arch.persistence.room:compiler -e android.arch.persistence.room:guava -e android.arch.persistence.room:migration -e android.arch.persistence.room:runtime -e android.arch.persistence.room:rxjava2 -e android.arch.persistence.room:testing -e android.arch.persistence:db -e android.arch.persistence:db-framework -e com.android.support