Google has just posted the Google Fit Preview SDK for developers and manufacturers to work on fitness oriented apps. This comes as the Nexus 5 and the 2013 Nexus 7 received a new build of Android L, bringing along some changes on board. As for Google Fit, this will help the company have a dedicated fitness tracking system built directly into Android. Google has detailed the three different types of APIs that are covered under the Google Fit Preview SDK.
- Sensors API provides high-level access to sensors from the device and wearables—so with one API your app can talk to sensors, whether on an Android device or a wearable. So if you’re making a running app, you could register it to receive updates from a connected heart rate monitor every 5 seconds during a user’s run and give immediate feedback to the runner on the display.
- Recording API allows apps to register for battery-efficient, cloud-synced background collection of fitness data. For example, a running app could ask to store user’s location so it can map the run later. Once it registers for these data types, collection is done by Fit in the background with no further work needed by the app.
- History API allows operations on the data like read, insert and delete. When the exerciser finishes her run, the running app can query the History API for all locations during the run and show a map.
Source: Google Developers