The aim of this wrapper was to enable simple GPS background tracking, but not pretending to have a full feature app. I'm not going to add functionality on a "hack" even working. It would be better to enable on Utouch the GPS background then we could start thinking on improving apps (like Activity Tracker).
We need visibility there : https://github.com/ubports/ubuntu-touch/issues/1067

However, I realized that two fuctionalities would improve Utrack a lot:

• Automatic saving of the track every few minutes in order not to loose the hard work of a day once the battery dies
• A possibility for pausing/resuming the tracking

Do you think this would be possible without deteriorating the battery performance?

Let see the feedback of others.

I just had a look at the Utrack.py and made the following change (line 183), which made the code run on my phone:

if re.search("^longtide", line): #longtide bug in test_gps
    try:
        long = line.split()
-       if re.match(".\d+.\d+", long[1]):
+       if re.match("(?:\d+(?:\.\d*)?|\.\d+)", long[1]):
            longitude = long[1]
        else:
            subprocess.Popen(["truncate", "-s", "0", temp_file], shell=False)

You are trying to match a floating point number here, right? Following this post it is apparently better to use "(?:\d+(?:\.\d*)?|\.\d+)". I've made a pull request.

I hope this does not break other things. On the my phone it works..

Here is the click if someone wants to test:
https://drive.google.com/file/d/1AADkOrVwV-YvTo00XtHnC997e3gRNIi0/view?usp=sharing

Best,
Hendrik

So this means, that Activity Tracker has GPS reception and works in the background (if allowed in UT Tweak Tool) in my case.

You can ran manuall in the terminal test_gps

However this app will likely not work for pinephone and Halium9.

In the description there are requirements mentioned (which I can not fullfill):

Depending of the Ubuntu Touch version and AppArmor security, you might need to run this app into an iperspace. See https://open-store.io/app/iperspace.emanuelesorce Currently RC and Stable requires this tool.

What do I have to do with this link/Information? I get a page: The app you are looking for has been removed or does not exist ...

Thank you for the quick response. Unfortunately I've another error now:

Traceback (most recent call last):
  File "./Utrack.py", line 350, in <module>
    read_gps(p)
  File "./Utrack.py", line 177, in read_gps
    event = event.decode("utf-8")
AttributeError: 'TailEvent' object has no attribute 'decode'

I've another version in WIP, that should fix that ...but has other bug. I'll try to find the click.

Edit : Try this one : https://drive.google.com/file/d/1I-_nGDVoFy5hdqiR_ApuA4hKCk8qmqSo/view?usp=sharing

I tried to make it work on my XperiaX and my Nexus 4 but unfortunately without success. After a short while the following error is returned:

Waiting for satellites

Traceback (most recent call last):
  File "./Utrack.py", line 317, in <module>
    read_gps(p)
  File "./Utrack.py", line 219, in read_gps
    if 70 > ACCURACY > 0 and len(longitude) > 0 and len(latitude) > 0:
TypeError: unorderable types: int() > list()

Utrack_log.txt is empty but in the Utrack_tmp.txt I can see that the satellite data seemes to be logged correctly. The location is correct. I X'd out the exact position:

*** location callback
flags:  55
latitude:       50.XXXXX
longtide:       4.XXXXXX
accuracy:       23.000000
utc:    -758278816

The error appears strange to me since none of the inputs is a list. Do you have a clue what to do?

Please read prior use : https://github.com/ernesst/Utrack/blob/master/README.md