The fact that the CPU is working and the phone is not asleep when the
HttpUrlConnection starts doesn't mean it's going to still be that way by
the time it finishes.... That's why you need the wakelock while the
HttpUrlConnection is running.. to make sure it can finish. Just make
sure to release the wakelock when it's done.
On 03/06/2010 8:41 AM, Daniel Lew wrote:
> Well, I can tell you the process...
>
> 1. AlarmManager fires an intent to a Service.
>
> 2. That Service creates an HttpUrlConnection.
>
> 3. That connection fails every other time.
>
> Not sure what more information you would need to be helpful. I'm not
> using a wakelock currently, but I guess I'm not sure why that's
> necessarily relevant - I can see that the connection is being
> attempted via my logging, so the device's CPU is on. However, I will
> try it and see if that fixes anything.
>
> -Daniel
>
> On Jun 2, 7:42 pm, Indicator Veritatis<mej1...@yahoo.com> wrote:
>
>> I think you are going to have to be more informative than that to be
>> helpful. Not that it is your fault: the suggestion of 'wakelock' was a
>> good one. It is just that the online documentation for
>> PowerManager.WakeLock is not as thorough as that for, say for example,
>> Activity.
>>
>> Why, as one example of a major omission, the documentation for the
>> acquire() method says, "Makes sure the device is on at the level you
>> asked when you created the wake lock", but no Constructor is
>> documented. Nor is there any mention of a Factory method. So how is
>> the user supposed to figure out HOW to ask for the level???
>>
>> So since the documentation didn't mention it, I will mention it here:
>> the answer is in the class WakeLock is nested in(PowerManager), which
>> has the method 'newWakeLock()'. This is what does the creation
>> referred to so obliquely in the doc for 'acquire()'.
>>
>> On Jun 2, 2:23 pm, Mike dg<vinb...@gmail.com> wrote:
>>
>>
>>
>>
>>> Are you using a wakelock?
>>>
>>
>>> On Jun 2, 4:10 pm, Daniel Lew<danle...@gmail.com> wrote:> I've run into a bizarre situation and I'm not sure how to solve it.
>>>
>>
>>>> The app I'm working on has a regular pull update that occurs every so
>>>> often in the background. When the phone is on, it works. When the
>>>> phone is using wifi, it works. However, if the phone is sleeping and
>>>> connected only to 3G, it only *sometimes* works. Other times,
>>>> HttpUrlConnection.getInputStream() returns null (after a lengthy
>>>> timeout, though it's not based on any timeout setting... it just
>>>> seems to randomly time out at some point). There are no exceptions
>>>> thrown and no logs indicate any trouble, except that my connection
>>>> goes completely ignored.
>>>>
>>
>>>> Does anyone know why this might be happening?
>>>>
>
--
Sincerely,
Brad Gies
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