im dating a recovering addict - Proximity dating device

For example, you can use the geomagnetic field sensor in combination with the accelerometer to determine a device's position relative to the magnetic north pole.

You can also use these sensors to determine a device's orientation in your application's frame of reference.

The following code shows you how to get an instance of the default geomagnetic rotation vector sensor: private Sensor Manager m Sensor Manager; private Sensor m Sensor; ...

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Position sensors are not typically used to monitor device movement or motion, such as shake, tilt, or thrust (for more information, see Motion sensors).

The geomagnetic field sensor and accelerometer return multi-dimensional arrays of sensor values for each .

The sensor framework provides alternate methods for acquiring device orientation, which are discussed in Compute the device's orientation.

Some proximity sensors provide only binary values representing near and far.

The geomagnetic field sensor and the proximity sensor are hardware-based.

Most handset and tablet manufacturers include a geomagnetic field sensor.The Android platform provides two sensors that let you determine the position of a device: the geomagnetic field sensor and the accelerometer.The Android platform also provides a sensor that lets you determine how close the face of a device is to an object (known as the ).The game rotation vector sensor is identical to the Rotation vector sensor, except it does not use the geomagnetic field.Therefore the Y axis does not point north but instead to some other reference.For more information about the coordinate systems that are used by sensors, see Sensor coordinate systems.

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