The button hides itself when you scroll down the list of contacts
and shows again when you scroll up.
To properly color the button, the accent color has been defined.
It uses the same color as the action bar (primary color).
I leave it to a UX designer to adapt the color scheme.
Please note that the design support library was used.
It includes the app-compat library, so this has been removed
from the `build.gradle` file.
Closes#199
Replace bluetooth diagram PNG image with vector XML file.
I decided to not use several raster graphics, but use an XML file instead, so the android gradle plugin creates the raster files itself at build-time. I hope that this resolves the problem you saw on that device of yours.
See merge request !30
and indicate which transports are currently available.
The icons have been chosen from the official material icons and might be
replaced later with icons that better represent the given transport.
Please note that I used vector drawables which will be automatically
converted at build time to raster graphics.
Closes#96
Users were confused by the process of adding a contact for the first time.
This change adds additional explanation and a picture of what is going on.
It also moves part of the UI into XML files.
Closes#87
