JarCasting
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.
