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androidandroid-sensors

When a SensorEvent is reused by the system, does it allocate a new values array?

I'm using android sensors, and I don't want my code to produce a new object for each sensor event. For now, I'm copying the values contained in the array SensorEvent.values to my own Sample class values array.

I know SensorEvents are reused by the system and cannot be kept, but I was wondering if SensorEvent.values was also reused or if a new array was allocated. Indeed, there is no point in copying the array into mine if a new is created anyway (I'd better replace my own array by SensorEvent.values directly).

I've been looking at different posts like post 1 and post 2 but they deal with SensorEvent objects and not the values field itself.

Solution

  • To clarify for future readers, the array SensorEvent.values is reused as well as the SensorEvent object. Therefore, one should not keep any reference to it, and should instead copy each value.