Map Viewer UX issues

Created by: E3V3A

In Map Viewer:

• Take a long time (~13 sec) to load BTS pins. Why? Can we keep OSM data in a cache to reduce time?
• If viewing map and app is then temporarily put into background (by long press home button), upon return, map has been exited and you have to navigae back to the map again, which need to reload.
• Changing Map Type to "Satellite", doesn't allow zooming in very much, only "out". If this can't be fixed I suggest removing the options "Satellite" and "Hybrid".
• Changing Map Type to "Hybrid", is the same as "Normal"
• BTS pin-info need to show leading "0" for items such as MNC and MCC, like this MNC: 02.
• BTS pin-info doesn't show LAC
• BTS pin-info should also show these items: *RAT, PSC, first/last seen"
• BTS pin-info could concatenate "MCC + MNC" labels into a Provider Code of "PC".
• BTS When pin-info Samples are empty (BLUE), re-label as "0".
• BTS pins should have a different shape, preferably ~40% smaller round color-filled dots.
• BTS pin-color need to show BTS towers as:

EDIT: SEE #250

~~BLUE = The one currently connected BTS, ~~ ~~GREEN = other nearby previously seen BTS's where: _Samples: >1_ ~~ RED = new or previously unknown (to OCID) BTSs or where: _Samples: 0_, or "-1".

This says BLUE for currently connected BTS pin, but should probably have a different look. Perhaps a GREEN or RED dot surrounded by a BLUE circle, or something else???

Related code: MapViewerOsmDroid.java

If you understand that code, please add some comments so other people (like me) can fix it it as well.

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