Location is one of the biggest culprits in battery waste in the case of many devices that have not been correctly configured. Personally, as soon as I buy a new iPhone (or restore it, as is the case with the happy iOS 11 betas), the first thing I do is go to the Privacy section on the iPhone to deactivate all those location functions that consume battery and they are not necessary at all.
Apple wants to improve not only our autonomy but also our privacy with this new feature of iOS 11 in which it will inform us when an application executes the location in the background. This blue bar in the upper area had already appeared in previous versions when, for example, we were sharing mobile data.
Since with the arrival of iOS 7 Apple opened the ban on background updates, the applications have gradually taken advantage of these freedoms to make more use of our RAM memory and of course our battery, so much so that some applications such as Facebook are capable of wasting up to 30% of our battery without hardly doing Nothing, and others like Instagram more of the same, since they not only run the location while we use them, but they continue to download content and run the application even if we are using other applications.
This top blue bar will show us at any time when an application is using our location in the background, something that until now was only shown when we had the application itself open. In short, that Apple takes all this type of security measures, or at least information, is the least to be appreciated. In the meantime We keep discovering new utilities and functionalities hidden in iOS 11 and designed to make our lives easier.
It's funny because I have iOS 10 and he does THAT for me with an app. I don't say it in case you can't advertise
How to configure it ... It has never worked out for me
It comes out automatically, it came out to me with CityMapper today.
Yes, but it is very annoying, because at first it is good to know but if one is giving authorization of the location to that application like Facebook after a while it becomes annoying it is more confused when one minimizes a call