sur face view returnn null pointer

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Mobile

Android

Hi all
I have create wall paper with scroll view it work fine in 4.2 but in 2.1 it force close

my error is
07-12 15:03:23.875: D/dalvikvm(27001): GC_EXTERNAL_ALLOC freed 50K, 49% free 2748K/5379K, external 1596K/2108K, paused 59ms
07-12 15:03:24.101: D/dalvikvm(27001): GC_EXTERNAL_ALLOC freed 1K, 49% free 2747K/5379K, external 4721K/5896K, paused 32ms
07-12 15:03:24.421: D/dalvikvm(27001): GC_EXTERNAL_ALLOC freed <1K, 49% free 2748K/5379K, external 6612K/8237K, paused 32ms
07-12 15:03:24.570: D/call(27001): android.view.Surface$CompatibleCanvas@4051a410
07-12 15:03:24.601: W/dalvikvm(27001): threadid=1: thread exiting with uncaught exception (group=0x40015578)
07-12 15:03:24.609: E/AndroidRuntime(27001): FATAL EXCEPTION: main
07-12 15:03:24.609: E/AndroidRuntime(27001): java.lang.NullPointerException
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.view.SurfaceView.updateWindow(SurfaceView.java:476)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.view.SurfaceView.dispatchDraw(SurfaceView.java:348)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.view.View.draw(View.java:6936)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.view.SurfaceView.draw(SurfaceView.java:334)
07-12 15:03:24.609: E/AndroidRuntime(27001): at com.example.myjesus.Jesuswallpaper$JesuswallpaperEngine.drawFrame(Jesuswallpaper.java:161)
07-12 15:03:24.609: E/AndroidRuntime(27001): at com.example.myjesus.Jesuswallpaper$JesuswallpaperEngine.animate(Jesuswallpaper.java:149)
07-12 15:03:24.609: E/AndroidRuntime(27001): at com.example.myjesus.Jesuswallpaper$JesuswallpaperEngine.onVisibilityChanged(Jesuswallpaper.java:109)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.service.wallpaper.WallpaperService$Engine.reportVisibility(WallpaperService.java:685)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.service.wallpaper.WallpaperService$Engine.doVisibilityChanged(WallpaperService.java:668)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.service.wallpaper.WallpaperService$IWallpaperEngineWrapper.executeMessage(WallpaperService.java:893)
07-12 15:03:24.609: E/AndroidRuntime(27001): at com.android.internal.os.HandlerCaller$MyHandler.handleMessage(HandlerCaller.java:61)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.os.Handler.dispatchMessage(Handler.java:99)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.os.Looper.loop(Looper.java:130)
07-12 15:03:24.609: E/AndroidRuntime(27001): at android.app.ActivityThread.main(ActivityThread.java:3689)
07-12 15:03:24.609: E/AndroidRuntime(27001): at java.lang.reflect.Method.invokeNative(Native Method)
07-12 15:03:24.609: E/AndroidRuntime(27001): at java.lang.reflect.Method.invoke(Method.java:507)
07-12 15:03:24.609: E/AndroidRuntime(27001): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
07-12 15:03:24.609: E/AndroidRuntime(27001): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
07-12 15:03:24.609: E/AndroidRuntime(27001): at dalvik.system.NativeStart.main(Native Method)


please help me...............