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https://issues.apache.org/jira/browse/CB-3064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13647617#comment-13647617
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Davide Maestroni commented on CB-3064:
--------------------------------------
I'm sorry, you are right in saying a didn't provide enough details. So let me
try to do it now.
Actually, what I see is not what you describe: the activity lifecycle is
respected, and I can see from the logs that both onDestroy and then onCreate
methods are successfully called. The problem seems to be related to the fact
that the Config class implements a singleton, so that, stepping line by line
with the debugger during the second call to onCreate, after the application
re-start, and printing the value of Config.self I found out it was not null!
Thus causing the parsing of the config.xml file to be skipped.
It looks like the Config object is retained during the application stop and
re-start, and that is the root cause of the issue. To prove it is the fact
that, even if the config.xml file is not parsed again, the settings stored as
members of the Config instance, like the whitelisted URLs or the log level, are
retained as well, while settings like the background color, which are stored in
the bundle extras, are simply lost.
Since the self attribute of the Config class is private I cannot reset it to
null, so my workaround is to just explicitly parse the config.xml file and put
the settings values in the bundle extras every time the onCreate function gets
called.
> The preferences are read only the very first time the application runs
> -----------------------------------------------------------------------
>
> Key: CB-3064
> URL: https://issues.apache.org/jira/browse/CB-3064
> Project: Apache Cordova
> Issue Type: Bug
> Components: Android
> Affects Versions: 2.5.0, 2.6.0
> Environment: All Android versions and devices
> Reporter: Davide Maestroni
> Assignee: Joe Bowser
>
> The preferences in the config.xml file are not read again if application
> exits and then restarts.
> A simple test is to set the background color to GREEN (-16711936 or
> [0xff00ff00]) and use an html page with transparent background.
> The first time it is run, the application correctly displays a green
> background but then, after exiting by pressing the back or home button, and
> re-running it, the background stays black.
> Forcing the application thread to stop from the Android settings menu seems
> to cause the preferences file to be read again.
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