[
https://issues.apache.org/jira/browse/CB-7197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134168#comment-14134168
]
Joe Bowser commented on CB-7197:
--------------------------------
You should comment about whether this functionality is going to be removed or
not on the dev list.
> Cordova doesn't always initialize when webview timers start in the paused
> state
> -------------------------------------------------------------------------------
>
> Key: CB-7197
> URL: https://issues.apache.org/jira/browse/CB-7197
> Project: Apache Cordova
> Issue Type: Bug
> Components: Android
> Affects Versions: 3.5.0
> Environment: Android 4.4.2
> Reporter: David Almilli
>
> When Cordova pauses the timers before the Activity is destroyed, when you
> start the Activity back up, it detects it's in the startup phase and doesn't
> resume the timers if they are starting in the paused state.
> If you look at the javadoc for WebView.pauseTimers() it says that it's a
> global setting and doesn't just affect that instance of the WebView.
> http://developer.android.com/reference/android/webkit/WebView.html#pauseTimers()
> There are probably several ways to reproduce this which may seem inconsistent
> because it depends on what the android task manager does and whether it
> destroys the activities, but keeps the process running or not. I wasn't able
> to make a simple example though. The way I was reproducing it was by using
> the camera plugin to take a picture and then hit back repeatedly until it
> goes to the home screen. Then I would go back to the launcher icon to start
> the app again. It never receives the deviceready event and gets stuck just
> before it loads the plugins in the cordova.js because it's wrapped in a
> setTimeout().
> I even had this snipped at the top of the body that (when starting in a
> broken state) would print "Testing setTimeout", but would *not print*
> "setTimeout 0 works"
> {noformat}
> <script type="text/javascript">
> console.log("Testing setTimeout");
> setTimeout(function() {
> console.log("setTimeout 0 works");
> }, 0);
> </script>
> {noformat}
> The fix I came up with was at the end of the CordovaActivity.init(...) method
> add this line:
> {noformat}
> public void init(CordovaWebView webView, CordovaWebViewClient
> webViewClient, CordovaChromeClient webChromeClient) {
> ...
> this.appView.resumeTimers();
> }
> {noformat}
> And to be sure that the CordovaWebView doesn't break other WebViews that
> might be used by a developer, it should resume the timers when it is
> destroyed so at the end of the CordovaWebView.handleDestory() method add this
> line:
> {noformat}
> public void handleDestroy() {
> ...
> this.resumeTimers();
> }
> {noformat}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
