Device Year Class

Additional

Language
Java
Version
1.0.1 (Apr 3, 2015)
Created
Mar 7, 2015
Updated
Apr 14, 2018
Owner
Facebook (facebook)
Contributors
Frieder Bluemle (friederbluemle)
trevor-e
Macarse
SeyelentEco
rrong
dasmer
zlern2k
lozzle
divayprakash
Ashish Bhatia (ashishb)
elizahale
11
Activity
Badge
Generate
Download
Source code
APK file

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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 (RAM is a ceiling):

RAM condition Year Class
768MB 1 core 2009
2+ cores 2010
1GB <1.3GHz 2011
1.3GHz+ 2012
1.5GB <1.8GHz 2012
1.8GHz+ 2013
2GB 2013
3GB 2014
5GB 2015
more 2016

Integration

Download

Download the latest JARs or grab via Gradle:

compile 'com.facebook.device.yearclass:yearclass:2.1.0'

or Maven:

<dependency>
  <groupId>com.facebook.device.yearclass</groupId>
  <artifactId>yearclass</artifactId>
  <version>2.1.0</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.