sensors - Android - SensorEventListener timeout in background

Question

I am recording sensors (Acceleration, Magnetometer, Gyro) on Android during running and walking. Sensors are registered with a sample rate of 50ms (20 values per seconds) with #SensorManager#registerListener. The first issue I have is that the values are sent about every 2ms, but according to the documentation, the rate is just a hint.

But the real problem is, that when the application is running in background with foreground services and screen locked, that at some points no sensors are received for a certain amount of time (5-50 seconds). This varies across different devices. The following image shows the gaps related to the data index to get a better feeling of the problem.

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I guess that this is somehow related to power management of the devices, but I cannot find any documentation or even solution for that. Every help is appreciated.

question from:https://stackoverflow.com/questions/65879105/android-sensoreventlistener-timeout-in-background

Answer 1

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