Can you explain why values from 'Activity.getActivityInfo().altitude' increasing over time?
I read these values every view seconds always at the same level and after a while (2) it starts that the values are greater and greater.
BTW it is measured indoors. I tried it multiple times. I could imaging it slightly depends on whether conditions (air pressure) but I see it every time I a measuring.
Has anyone of you experienced that the sensor has problems with peaks which I try to measure, that it doesn't come back to the value before? 
