Location accuracy indicator

[spatialdude]

A critical contributing factor to arrival detection and some of the observations in #13 is the horizontalAccuracy being reported by the location sensor.

The horizontal accuracy should somehow be displayed to the user.

This could either as an absolute value as reported by the sensor -

e.g. For the distance to destination 123 m ± 10 m

or a graphical representation such as signal strength

e.g.

The highest bar would be a location <= 10 m The lowest bar would be > 100m

[marikavertzonis]

tested 1.0.27 on android 4.2 (CT4) and iOS 8.4 (iphone 5). The accuracy symbol does correspond to the text as expected.

@defiantgoat - The bars do look a lot like network strength... could we experiment with concentric circles? Circles are used on maps to indicate accuracy... a bullseye may resemble those circles. Below is a crude example

[defiantgoat]

I will test out a concentric circle version.

[defiantgoat]

Added as of v 1.1.9

May refine to 3 or 4 levels with color coordination 1: Red 2: Orange 3: Green

[marikavertzonis]

tested on tested on windows 10, ios 8.4 (iphone 6) and android 6.0.1 (samsung s6) i can see the horizontal accuracy symbol on each device, and see it change. the symbol is quite small - but i think it standards out enough in the two blue color scheme. i could see it in bright sunlight and in shade. consider color change upon user feedback.