When I was implementing the shake-to-shuffle feature in Pair-Up game, I googled for a similar code-snippet but didn’t have much luck. Eventually I came across this hidden code in Android Developer Guide which talks about using the phone motion sensor to program:
http://developer.android.com/guide/samples/ApiDemos/src/com/example/android/apis/os/Sensors.html
Alas! It can be done! But I just need a very simple function to detect if there’s a shake action. So my actual code is a lot simpler:
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// Need to implement SensorListener
public class ShakeActivity extends Activity implements SensorListener {
// For shake motion detection.
private SensorManager sensorMgr;
private long lastUpdate = -1;
private float x, y, z;
private float last_x, last_y, last_z;
private static final int SHAKE_THRESHOLD = 800;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
…… // other initializations
// start motion …
