How do I add a library (android-support-v7-appcompat) in IntelliJ IDEA

Using Gradle

If you are using Gradle, you can add it as a compile dependency.

Instructions

1. Make sure you have the Android Support Repository SDK package installed. Android Studio automatically recognizes this repository during the build process (not sure about plain IntelliJ).

   

2. Add the dependency to {project}/build.gradle

   dependencies {
       compile 'com.android.support:appcompat-v7:+'
   }
   

3. Click the Sync Project with Gradle Files button.

EDIT: Looks like these same instructions are on the documentation under Adding libraries with resources -> Using Android Studio.