Way to restart live wallpaper

Question

Is there any way to tell Android that I want to create new wallpaper engine or restart wallpaper service?

To be more precise I want to integrate LWP with Unity3d. There are some solutions available for it, but they only work for Android versions prior 4.3. If I create surface and attach Unity3d player as Renderer it works fine until I go to preview and then return back to home screen. Then after 20-30 frames LWP crashes with segmentation fault. Although I can go to preview as many times as I like if I don't return to home screen.

So, my idea is... If I can create as many new engines as I like and they work fine, it could be that if I create new engine when I return to home screen I can workaround this crash.

score 4 · Answer 1 · answered Jan 02 '14 at 08:11

4

If your LWP is crashing with segmentation fault, you can use the onDestroy() or onStop() method to wait for the crash. Once it occurs, you can relaunch the LWP.

However, you should investigate the reason of the crash using LogCat or Acra. It might be a memory issue.

answered Jan 02 '14 at 08:11

Harshit Jain

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It crashes after rendering roughly 20-30 frames after resume. I probably should restart it immediately after onResume. But how to do that? Should I send intent? To what? – son of the northern darkness Jan 02 '14 at 08:42
It is very head to investigate reason for crash since I don't have source code for Unity3d. – son of the northern darkness Jan 02 '14 at 08:43
Yes i think you can use an intent to start it. Further information can be found at: http://www.vogella.com/articles/AndroidLiveWallpaper/article.html#overview_create – Harshit Jain Jan 03 '14 at 04:22
You may not need to check the Unity Code as such, Acra or Logcat can give you an indication to an external factor that might be causing it to crash, such as memory full etc. – Harshit Jain Jan 03 '14 at 04:23
Logcat doesn't give enough information, unfortunately. BUt thanks for the link how to start lwp. It might be the way to go. – son of the northern darkness Jan 05 '14 at 09:55

Way to restart live wallpaper

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