(e.g. when switching to another day for which no samples are
available, the chart now becomes empty instead of displaying the
samples from the last day with data.
This avoids a lot of problems because java
- does not know unsigned values
- jvm and dalvic do not internally support byte and short
- sqlite does not know them either
Currently we get the heart rate when synchronizing activity data
(i.e. not live) and we write it to the activity database so that we
can show a nice graph. The value is currently always 0 though,
because we can't enable recording hr, yet.
They are now managed by the Activity, because the fragments
may be created and destroyed at any time and hece cannot
synchronize their date-state all the time.
Open issue: moving across the borders (first day with data,
current day)
- model package contains mostly shared interfaces (UI+service), not named GB*
- impl package contains implementations of those interfaces, named GB*
the impl classes should not be used by the service (not completely done)
- the service classes should mostly use classes inside the service and deviceevents
packages (tbd)
Every device now has two packages:
- devices/[device name] for UI related functionality
- service[device name] for lowlevel communication
