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From: Ryan Hanna <hanna.ryan@gmail.com>
Date: Fri, 13 Feb 2015 08:04:51 -0800
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Subject: Re: Maintaining App Data When Switching WebViews
To: dev@cordova.apache.org
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Would the google drive persistence be useful across webviews for apps
already using storage that is not with google drive?

Eddy V seems to have come up with a great solution for iOS in his WKWebview
plugin as a
reference.
https://github.com/Telerik-Verified-Plugins/WKWebView/commits/master?page=2

-Ryan Hanna
Sworkit Developer

On Fri, Feb 13, 2015 at 6:28 AM, Jay Proulx <jproulx@adobe.com> wrote:

> For iOS you can use the new shared keychain, and for android you can
> persist data to google drive to share across applications.
>
> https://github.com/googledrive/appdatapreferences-android
>
>
> Jay Proulx | computer scientist | aem engineering | office: 613.940.4052 |
> mobile: 613 866 0732 | adobe systems
>
>
>
>
> On 2015-02-12, 4:05 PM, "Josh Bavari" <jbavari@gmail.com> wrote:
>
> >Andrew,
> >
> >Here at Ionic, we've had a few users request something like this. My
> >approach has been to create a Cordova plugin, that takes the following
> >steps:
> >
> >Creates an instance of the original webview
> >Executes some JS inside the webview that will grab all entries for
> >localstorage
> >If Android pre KIT_KAT or more, executed JS calls a JSInterface to pass
> >the
> >data back to native land
> >If KIT_KAT or greater, calls evaluateJavascript
> >Those values are read, and passed back to the original webview
> >From there, it'd go through the keys, and add them into the new webview
> >
> >See this repo for my work in progress:
> >https://github.com/driftyco/cordova-plugin-local-storage-retrieval
> >
> >On Thu, Feb 12, 2015 at 1:46 PM, Andrew Grieve <agrieve@chromium.org>
> >wrote:
> >
> >> Worth a discussion about this, I think.
> >>
> >> If you have an app already launched that uses localstorage/websql, and
> >>want
> >> to switch to xwalk, how can you migrate your data?
> >>
> >> What if you want to use system webview for API >= 21 and xwalk only for
> >>old
> >> phones? Then you need to move data in the reverse direction.
> >>
> >>
> >> Idea 1:
> >> - See if sqlite / localstorage databases are the same format, and
> >>provide
> >> code that migrates db locations
> >>
> >> Idea 2:
> >> - Use wizcorp's multi-window plugin to create a new an off-screen system
> >> webview, then use post-message to read data out of the old one.
> >>
> >> WDYT? Is this a problem we need to solve?
> >>
> >
> >
> >
> >--
> >"Clear thoughts produce clear results."
> >Josh Bavari
> >Application Developer
> >Phone: 405-509-9448
> >Cell: 405-812-0496
> >Email: jbavari@gmail.com
>
>
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