Am 26.09.20 um 18:15 schrieb Thiago Macieira:
On Saturday, 26 September 2020 08:53:52 PDT ekke wrote:
Am 26.09.20 um 17:39 schrieb Thiago Macieira:
On Friday, 25 September 2020 23:58:26 PDT Alexander Dyagilev wrote:
Hello,
Tested with Qt 5.12.9. Any workarounds?
Suggestion: stop trying to check and assume that you are online.
imagine a mobile app for outpatient services, where a nurse visits
patients and at each patient has to confirm services done and to send
vital values and so on...
while on tour and visiting the patients the device sometimes is online,
sometimes offline
Ok, stipulated.
all service items done are written to a queue. queue watches online
state and always when the device is online items waiting in the queue
are sent to server
Ok.
in the evening when all work is done user can only log out if all work
is sent to server - if not online he/she gets an info "you're not online
- work items cannot be sent" ...
No. You don't need to know if you're online for that. You need to get the
confirmation from the server that the server received the data. That completes
the information loop properly.
assuming that the device is online won't work in such kind of use-cases,
pulling also is no good idea
Yes, it is. Just try to connect. If you're offline, then you can't. If you're
online but there's another network problem, then you can't either.
I don't know what you mean by pulling. Did you mean a push API? I don't see
how that would be relevant.
I meant using a Timer and try again every x minutes to send data to server
in my current apps on iOS I'm using iOS Reachability Classes to wat5ch
online state,
on Android I'm using QNCM online state changed signal to watch online state
this works very well
If I'm following your suggestion trying to connect - what should I do if
I cannot connect ?
start a Timer and try again ?
of course it'e easier to watch online state signal
(have some more mobile apps where it's also important always to know the
online state)
You're online. That's what Qt 6 will tell you.
sounds good
ekke
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