How to detect phone tilt?

Question

How to determine the angle of the phone orientation in the one plane?

Now I make it through SensorManager:

mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
mOrientation = mSensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION);

...

public void onSensorChanged(SensorEvent event) {
    xy_angle = event.values[0]; 
    xz_angle = event.values[1]; 
    zy_angle = event.values[2];

Here I get different angles, but I need only one angle, which varies with the rotation of the phone, while driving along the blue line.

How calc or how get this angle?

How can I use SensorManager.getOrientation for tilt controls like "My Paper Plane"? - similar question here, but I don't understand how author solve his problem.

Please share the solution if you got one – Aashish Bhatnagar Mar 25 '13 at 12:12 — Aashish Bhatnagar, Mar 25 '13 at 12:12

score 2 · Answer 1 · edited May 01 '12 at 13:05

2

What you need is SensorManager.getOrientation().

edited May 01 '12 at 13:05

Philipp Reichart

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answered May 01 '12 at 12:51

Krishnakant Dalal

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score 2 · Answer 2 · answered May 10 '15 at 21:49

2

I see that this post is a bit old, so maybe it's been answered by now, but Sensor.TYPE_ORIENTATION is now deprecated in favor of SensorManager.getOrientation().

I've done a full writeup of essentially what you're looking for here: http://blog.samsandberg.com/2015/05/10/tilt-for-android/

Hope it helps someone looking for the same thing!

answered May 10 '15 at 21:49

Loisaida Sam Sandberg

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Sorry for that - blog was riddled with spam so I took it down until I had a chance to fix it. Fixed! – Loisaida Sam Sandberg Dec 15 '16 at 15:36

score 0 · Answer 3 · answered May 01 '12 at 13:15

The author of that question solved his problem by switching his parameter order:

 if (SensorManager.getRotationMatrix(m_rotationMatrix, null,
                                    m_lastMagFields, m_lastAccels)) {

to:

if (SensorManager.getRotationMatrix(m_rotationMatrix, null,
                                m_lastAccels, m_lastMagFields)) {

How to detect phone tilt?

3 Answers3