README.md

Device Year Class

Device Year Class is an Android library that implements a simple algorithm that maps a device's RAM, CPU cores, and clock speed to the year where those combination of specs were considered high end. This allows a developer to easily modify application behavior based on the capabilities of the phone's hardware.

Mappings as of this writing (ceilings, aside from the final row):

Year	Cores	Clock	RAM
2008	1	528MHz	192MB
2009	n/a	600MHz	290MB
2010	n/a	1.0GHz	512MB
2011	2	1.2GHz	1GB
2012	4	1.5GHz	1.5GB
2013	n/a	2.0GHz	2GB
2014	n/a	>2GHz	>2GB

Integration

Download

Download the latest JARs or grab via Gradle:

compile 'com.facebook.device.yearclass:yearclass:1.0.1'

or Maven:

<dependency>
  <groupId>com.facebook.device.yearclass</groupId>
  <artifactId>yearclass</artifactId>
  <version>1.0.1</version>
</dependency>

Calculate Device Year Class

Calculating the current device's Year Class is simple.

int year = YearClass.get(getApplicationContext());

Then, later on, you can use the year class to make decisions in your app, or send it along with your analytics.

if (year >= 2013) {
    // Do advanced animation
} else if (year > 2010) {
    // Do simple animation
} else {
    // Phone too slow, don't do any animations
}

See the yearclass-sample project for more details.

Improve Device Year Class!

See the CONTRIBUTING.md file for how to help out.

License

Device Year Class is BSD-licensed. We also provide an additional patent grant.