[jira] [Updated] (CB-11304) White screen after relaunch when left with back button -> no splashscreen

["Roberto De Simone (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CB-11304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Roberto De Simone updated CB-11304:
-----------------------------------
    Summary: White screen after relaunch when left with back button -> no splashscreen  (was: Backbutton does not suspend app correctly -> white screen on resume)

> White screen after relaunch when left with back button -> no splashscreen
> -------------------------------------------------------------------------
>
>                 Key: CB-11304
>                 URL: https://issues.apache.org/jira/browse/CB-11304
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: Android
>    Affects Versions: 6.0.0
>         Environment: Cordova 6.0.0
> cordova-android@5.1.1
> Mac OSX
> Android Studio 2.1
> Nexus 4 (Android 4.4.4)
> Nexus 6p (Android 6.0.1)
>            Reporter: Roberto De Simone
>            Priority: Critical
>
> Using the backbutton to suspend (exit) the app, something is going wrongly. 
> When later resuming the app - through the app list or by selecting the app icon - the app loads again but without splash screen. When the JS is heavy, like an Ionic 2 app there is a white screen for several seconds which looks very ugly. When leaving the app with the hardware "home" button, the app suspends correctly.
> This can be reproduced with the simplest possible Cordova app.
> 1. cordova create test com.mydomain.test test
> 2. cd test
> 3. cordova add platform android
> 4. cordova run android (on a device)
> 5. Press the backbutton
> 6. Switch to app list
> 7. Select the app
> -> for a very short time a white screen is visible - the time needed to load the JS. As the simplest app has very little JS, the effect is difficult to see on fast devices like a Nexus 6p. If you add heavy JS - like Ionic 2, then the effect is very well visible also on fast devices.
> 8. Now, select the "home" button
> 9. Switch to app list
> 10. Select the app
> -> the app resumes without loading the JS again - no white screen.
> (Also to mention: the effect is the same when listening to the "backbutton" event and trying to exit the app with "navigator.app.exitApp() ")



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