kgehmlich / coen390-team-d Goto Github PK

Add button to UI to send alert. Functionality is not yet necessary, a toast message will be enough for now.

When navigating back to the main activity using the Toolbar back button with the monitoring active, the UI of the Main Activity will reset to default values and nothing will update. Logcat shows that the monitoring is still happening in the background.

This also happens when the UI redraws on a screen rotation event

This does not happen when navigating back using the hardware back button.

Step one requires an Android Studio project in which to develop the app.

Add a toggle to activate/de-activate heart rate monitor

Heart rate is reported as a single (unsigned) byte, which is interpreted as signed in the sample code. This ends up reporting the heart rate as negative when it goes over 127.

Basic communication is required with the sensor so that testing can begin.

If the user's HR is below the alert treshold, the data on the server does not seem to get updated (as per what we can see on the Team Monitoring Activity).

One simple thing to consider for heart rate analysis is heart rate training zones
http://www.fitdigits.com/personalized-heart-rate-zones.html

We can also do some HRV analysis if we pull the heartbeat timestamps from the data packets. There seems to be a lot of prior literature on HRV analysis.
https://en.wikipedia.org/wiki/Heart_rate_variability#HRV_analysis_software

I think doing this with SharedPreferences would be ok. I've added my take on A2 in GoogleDrive\ELEC390 Shared Folder\Code_Ref if it can be useful. (N.B. my take is not perfect... but it worked ok)

UI needs to be designed and implemented. Functionality is not required yet (i.e. buttons etc. can be simple placeholders, no underlying code is needed).

Currently there is no feedback when the user click "Connect."

In order to have it update itself, the work being done should be in a separate thread so that the main thread isn't blocked and can redraw the button. When the work thread returns, it can update the button.