Add GitHub library as dependency to Android Studio project

It will work when you put this line in your project build.gradle, in the dependencies section:

compile 'com.github.chrisbanes.actionbarpulltorefresh:extra-abc:+'

Also, add:

repositories {
    mavenCentral()
}

So:

repositories {
    mavenCentral()
}

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    compile 'com.android.support:support-v4:18.0.+'
    compile 'com.android.support:appcompat-v7:18.0.+'
    compile 'com.github.chrisbanes.actionbarpulltorefresh:extra-abc:+'
}

Gradle will download the needed resources automatically for you.