iOS app does not handle network errors gracefully

[mhsmith]

App version 3.3.1.

When trying to send a transaction in airplane mode, the app hangs on the "Broadcasting transaction" message for 30 seconds with no way to cancel. Then the following message appears:

error: module 'electroncash.util' has no attribute 'TimeoutException'

[cculianu]

This is definitely not desirable behavior. I'm assigning it to myself and will look into improving it. Minimally that error shouldn't be there.

Thanks for reporting!

[mhsmith]

The error message is an easy fix in network.py: on my Android branch I've just changed the line to:

raise Exception(_('Server did not answer'))

The file is also missing this import:

from .i18n import _

[cculianu]

D'oh!

Awesome.. thanks. I'll change it.

Also I want to see if I can add a cancel button.. cool thanks man!

[cculianu]

Ok, I addressed the exception. Still need to see if I can make long-timeouts be less long (offer a cancel option).

[mhsmith]

Maybe related: #971.