Autor: Erich Kachel

In the last days more and more interesting changes happen around the „DeviceMotionEvent“ especially the properties „acceleration“ and „rotationRate“ which until few days ago worked seamlessly in Chrome on Android. When using the same acceleration API today, there suddenly are...

Wie Golem berichtet, veröffentlicht Google die Awareness-API die künftig abgefragt werden kann um allgemeine Interaktionen des Nutzers mit dem Gerät festzustellen. Persönlich interessant finde ich die Ermittlung der Nutzeraktivität durch das Auslesen der Sensoren. Daraus lassen sich dann einfache Zustände...

I suppose you won’t allow a web site to locate you over the cellular network or even GPS. But your smartphone probably has a compass in it and there is nothing special about this. But since every webpage can read...

Since you can get the state of the mobile’s phone battery you can tell if the user has a charger nearby and is plugged in. Sure it could be a recharger pack… but it’s pretty close to truth. If your...

With the network information you could decide more precisely where the user is right in this moment. People mostly have WiFi access when they are at their favorite places (at home, at the office, at Starbucks) and probably no WiFi...

So we get all kind of data like the tilt of the device. We could use this to determine if the user holds the device in its hands (shaking movements), has the device on a table (no shakings) or is...

The sensors that notice the shakings of your device also notice yourself shaking when you walk. Given the average distance you travel with every single step, one can tell how far you walked while reading a website. Combined with the...