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From "Andrew Grieve (JIRA)" <>
Subject [jira] [Commented] (CB-1843) Echo plugin doesn't work in iOS
Date Tue, 13 Nov 2012 18:34:13 GMT


Andrew Grieve commented on CB-1843:

Hey Aaron,

Could you try this same example except without the native code part? In 2.0 we added an Echo
plugin to the core distro for benchmarking purposes and I'm wondering if it's conflicting
here. I just tried creating a new project and adding the JS changes you listed (via copy &
paste) and I go an alert(true) on start-up using the 6.0 iPad simulator.
> Echo plugin doesn't work in iOS
> -------------------------------
>                 Key: CB-1843
>                 URL:
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: iOS
>    Affects Versions: 2.2.0
>         Environment: iPad2, iOS Simulator, iOS 6, XCode 4.5.2
>            Reporter: Aaron Moman
>            Assignee: Andrew Grieve
> I'm using the base application for iOS created with the create script.  That works correctly.
 I add the Echo plugin example Objective-C code and everything compiles.  Then I add the JS
to call it and that's when things get weird.
> In index.js, after the var app = { ... }; statement I add:
> window.echo = function(str, callback) {
>     cordova.exec(callback, function(err) {
>         callback('Nothing to echo.');
>     }, "Echo", "echo", [str]);
> };
> Then in onDeviceReady I add the following after the receivedEvent call:
>     window.echo("echome", function(echoValue) { alert(echoValue == "echome"); });
> I run the app and I get the green glowing "Device is ready" message.  So we're getting
into onDeviceReady successfully.  But the "true" alert never pops up.
> Until I double-click on the home button.  Then when the running apps show at the bottom
of the screen, then the alert pops up.  I tap back into the app and I can click to dismiss
the alert.
> What's going on here?  It seems like the example plug-in should work a little better
than this.
> The reason I'm doing this at all is that I'm seeing similar behavior in my app that I'm
currently failing to upgrade from 2.1 to 2.2.
> Worse: If I single-click the home button and then go back to the app, I get the alert
pop-up, but after I click on it the screen goes black.
> Any help would be greatly appreciated.
> Thanks,
> Aaron

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