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  Multiple Instances of same app  (Read 2262 times)
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Offline teletubo
« League of Dukes »

JGO Ninja


Medals: 48
Projects: 4
Exp: 8 years



« Posted 2009-11-06 22:21:03 »

Hello folks .

I am having a bad time with multiple instances of my app being opened, a problem I thought I had it solved . 

My game is made up of only one activity, and I set all those option in the manifest for it:

        android:launchMode="singleInstance"
        android:finishOnTaskLaunch="true"
        android:clearTaskOnLaunch="true"

even with that, sometimes (which I really can determine why), when the user presses "home", then launch the game again in the home screen, another instance of the activity is brought up .
Other times it just return to the game where it was .

The first behavior is causing some force closes when (re)loading the resources, and this really annoys me because I couldn't reproduce it anymore on my Hero (that's why I thought it was solved), but I know it happens because I got an e mail with a force close caused by that .

So the questions are : Why sometimes another instance is brought up, and how to avoid that ? either by forcing always reset everything, or by continuing from same point .

Thanks in advance

Offline Riven
« League of Dukes »

JGO Overlord


Medals: 816
Projects: 4
Exp: 16 years


Hand over your head.


« Reply #1 - Posted 2009-11-07 01:29:47 »

If the android functionality fails, use the old tricks: file locking or starting a serversocket on some non-standard port. (if it fails, you can connect to the existing serversocket, which signals the other app to grab focus)

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