This library now works with gradle and will soon be available on the central maven repository. For the moment, it's on jCenter atBintray. Just add the following repository to your root build.gradle:

allprojects {    repositories {        jcenter()        maven { url "https://jcenter.bintray.com" }    }}

Then in your app build.gradle:

dependencies {    // other repos ...    compile 'ch.halcyon:squareprogressbar:1.6.3'}

You can find the general usage with all the possibilities here:Usage

If you want some examples that you can copy&paste then check this page:Examples

See the following page for more informationHow To Contribute.