NetworkOnMainThreadException in authenticator
Opened this issue · 4 comments
GoogleCodeExporter commented
What steps will reproduce the problem?
1. Clean the project.
2. Set targetSDK to be 18 or 19
3. Launch the app
What is the expected output? What do you see instead?
The app display an error message "Sorry, the server is not reachable", even
though the server is just running fine. With some care, I found that
Communicator.doHTTPGET() method throws NetworkOnMainThreadException if run on
API level exceeding 10.
It turns out that Honeycomb and later versions of Android prohibits any network
operation on the main thread:
http://www.androiddesignpatterns.com/2012/06/app-force-close-honeycomb-ics.html
Fix: offload network operation to a worker thread.
Original issue reported on code.google.com by Hyunsu.Cho.2015@trincoll.edu on 13 Apr 2014 at 1:37
GoogleCodeExporter commented
Original comment by Hyunsu.Cho.2015@trincoll.edu on 13 Apr 2014 at 1:39
- Added labels: Priority-Critical
- Removed labels: Priority-High
GoogleCodeExporter commented
There are lots of places where doHTTPGET() is referenced; so doing it
asynchronously would require revamping lots of code.
Original comment by Hyunsu.Cho.2015@trincoll.edu on 13 Apr 2014 at 3:43
GoogleCodeExporter commented
I just found out that AccountManager.blockingGetAuthToken() suffers from the
same problem. I think this is related to Issue 361
(https://code.google.com/p/posit-mobile/issues/detail?id=361). The difference
is that, now with API 10 or higher, Android is very strict about separation
between UI thread and worker thread.
Original comment by Hyunsu.Cho.2015@trincoll.edu on 13 Apr 2014 at 3:48
GoogleCodeExporter commented
Sounds like a good, focused project for someone! Thanks for posting this.
Original comment by ram8...@gmail.com on 13 Apr 2014 at 11:57