You can import the helloIOIO eclipse project into Android Studio. It will give you gradle errors.
You will need to open up the Android Studio gradle file and update to newer version
build.gradle file for HelloIOIO project change dependency
dependencies {
classpath 'com.android.tools.build:gradle:1.1.2' <------ NOTICE THE 2
}
You will need to open the SDK Manager and get the version of your device. I was only able to get Android 5.0 (Api 21) working I could not get anything older working.
To compile IOIOLibAccessory you will also have to have the Google API SDK
I learned that there are two sets of API the Android SDK and The Google API. The Google API has extra classes such as com.android.future.usb.UsbManager
Hope that helps others or me in the future.