Androidx dependenciesfrom the CommonsWare Community archives
At November 17, 2019, 5:38am, Hadysalhab asked:
Every modern android project using android studio, will have the following dependencies added by default:
- implementation 'androidx.appcompat:appcompat:'
- implementation 'androidx.core:core-ktx:'
- implementation 'androidx.constraintlayout:constraintlayout:'
Also, using specific classes requires adding their corresponding dependencies (like recyclerview for example)
My Question is : how are we able to use directly the class that comes from the androidx.fragment , without adding the necessary dependency:
At November 19, 2019, 11:45am, mmurphy replied:
I apologize for my delay in responding — I was out of the office for a few days.
If your app is depending directly upon
androidx.appcompat:appcompat, then you are pulling in many other libraries as transitive dependencies. Basically,
androidx.appcompat:appcompat declares that it depends on other libraries, so Gradle will add those to your project automatically.
In my AndroidX Tech site, you can find out the transitive dependencies for a given library, such as
There, you will see that it depends upon
androidx.fragment:fragment:1.1.0, among other libraries. Gradle handles these transitive dependencies for you, making their contents available in your app automatically.