You can Gradle build script dependency to your app in the following way:
Open the 
file from your app module.
Here, in the dependencies, add the Gradle identifier for a library that you want to import:
Let us consider the current Gradle library, for instance:
com.android.support:appcompat-v7:23.1.1
The components of this Gradle library could be distributed in sections to ease understanding. Here are a few pointers to make note of:
- com.android.support is the package name of the project
- appcompat-v7 is the project name ...
