[jira] [Commented] (CB-1458) Android's new "Limit background processes" setting in "Developer options" breaks key PhoneGap functionality.

["Francois Masurel (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CB-1458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669139#comment-13669139 ] 

Francois Masurel commented on CB-1458:
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In fact, it should be clearly specified that, in low memory conditions, PhoneGap/Cordova just doesn't work on Android if you need to use external activities like the phone Camera app.

We have spent weeks developping our mobile app using PhoneGap just to realize at the end that the use of the Camera plugin crashes the app almost everytime.  We didn't hit the problem at the beginning because our dev phones where only used for testing and had plenty of memory available.

But once tested on real users phones, we found that, for most of them, our mobile app was crashing when using the camera.  We had to modify the Cordova core to save and restore the webview state and do the same for the Camera plugin to "fix" the problem.

But we still have some problem with the webview history which doesn't seem to be saved and restored properly, at least our app doesn't crash anymore and the pictures taken are not lost definitely.

It should also be interesting to have an internal PhoneGap Camera plugin like the foreground-camera-plugin but that's another point.

@Joe Bowser When will be released the PhoneGap version allowing to preserve state?  Thanx for your answer.
                
> Android's new "Limit background processes" setting in "Developer options" breaks key PhoneGap functionality.
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: CB-1458
>                 URL: https://issues.apache.org/jira/browse/CB-1458
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: Android, CordovaJS
>         Environment: Android 4.x.x
>            Reporter: trusktr
>            Assignee: Joe Bowser
>            Priority: Minor
>
> As of version 4.x.x, Android introduced a new ability to limit background processes down to zero in Settings >> Developer Options >> Limit background processes.
> I'm not sure if this bug exists with the latest PhoneGap version, but I noticed it using PhoneGap apps for android from Google Play.
> After setting the option to "No background processes" I noticed the following. If I try to use the Media abilities of PhoneGap in an app to chose a photo or file from my system, then when the selector application returns, the PhoneGap app will restart from the beginning because it's background process was terminated.
> If I set the option back to "Standard limit" then everything works just fine.
> What do we do about this? Personally, I prefer to have the option set to "No background processes" to prevent apps from needlessly wasting resources. It works great and some apps won't get terminated if they subscribe to Android's messaging system the proper way and will be dormant.
> Anyways, with the setting turned to "No background processes", I've experienced apps that still work properly. I think there must be some way to fix this with PhoneGap.
> This is a big deal because users should be allowed to set the option to "No background processes if they so desire."

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