Weird Exception when Livewallpaper is set in Andro

问题:

04-24 13:30:59.312: VERBOSE/RenderScript(6044): RS Thread exited
04-24 13:30:59.320: ERROR/libEGL(6044): call to OpenGL ES API with no current context (logged once per thread)
04-24 13:30:59.335: WARN/WallpaperService(6044): Ignoring updateSurface: destroyed
04-24 13:30:59.335: WARN/WindowManager(108): Window android.view.IWindow$Stub$Proxy@408968d0 is already added
04-24 13:30:59.355: DEBUG/dalvikvm(6083): GC_EXTERNAL_ALLOC freed 23K, 52% free 2598K/5379K, external 1625K/2137K, paused 55ms
04-24 13:30:59.425: DEBUG/GLWallpaperService(6083): onSurfaceDestroyed()
04-24 13:30:59.496: WARN/InputQueue-JNI(6044): Input channel is not initialized.
04-24 13:30:59.515: DEBUG/AndroidRuntime(6044): Shutting down VM
04-24 13:30:59.539: WARN/dalvikvm(6044): threadid=1: thread exiting with uncaught exception (group=0x40015560)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044): FATAL EXCEPTION: main
04-24 13:30:59.640: ERROR/AndroidRuntime(6044): java.lang.RuntimeException: Failed to register input channel.  Check logs for details.
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at android.view.InputQueue.nativeRegisterInputChannel(Native Method)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at android.view.InputQueue.registerInputChannel(InputQueue.java:92)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at android.service.wallpaper.WallpaperService$Engine.updateSurface(WallpaperService.java:521)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at android.service.wallpaper.WallpaperService$IWallpaperEngineWrapper.executeMessage(WallpaperService.java:904)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at com.android.internal.os.HandlerCaller$MyHandler.handleMessage(HandlerCaller.java:61)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at android.os.Looper.loop(Looper.java:123)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at android.app.ActivityThread.main(ActivityThread.java:3683)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at java.lang.reflect.Method.invokeNative(Native Method)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at java.lang.reflect.Method.invoke(Method.java:507)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-24 13:30:59.640: ERROR/AndroidRuntime(6044):     at dalvik.system.NativeStart.main(Native Method)

I was developing a Livewallpaper which uses a open-source game engine called Andengine(andengine.org), it works fine now except sometimes when user set my Livewallpaper as wall paper, an Exception will be thrown saying "Failed to register input channel. Check logs for details.", but the werid thing is the Livewallpaper still works and did not exit.

Any idea what maybe causing this problem , or how I can fix it?

回答1:

Sorry, I could only find that the InputQueue "provides a mechanism for an application to receive incoming input events. Currently only usable from native code".

Check the GLSurfaceView class in andengine. That may give you a clue of what is wrong with your wallpaper

You may also want to check why this is happening:

04-24 13:30:59.320: ERROR/libEGL(6044): call to OpenGL ES API with no current context (logged once per thread)