Can't start from Android 4.0

I want to launch the home screen. From my app I used to do this

Intent intent = new Intent(Intent.ACTION_MAIN);
                intent.addCategory(Intent.CATEGORY_HOME);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intent);

      

        
        
        
      

    

I am also following this thread Now I am having a problem launching in ICS (4.0). The problem is that I cannot start the home screen while I am logged into some other application (to test this, I created a thread in my application that will sleep for 5 seconds and trigger an intent so that I have time. to go to another application) it works fine in version 2.2 but with error 4.0

Is it because of the new architecture and way of handling actions in 4.0?

Logs for 2.2 log

03-13 14:33:18.661: I/ActivityManager(73): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.examples.notifications/.NotificationsActivity }

03-13 14:33:19.161: I/ActivityManager(73): Displayed activity com.examples.notifications/.NotificationsActivity: 349 ms (total 349 ms)

03-13 13:39:23.601: I/ActivityManager(73): Starting activity: Intent { cmp=com.examples.notifications/.TransparentActivity } 


03-13 13:39:23.981: I/ActivityManager(73): Displayed activity com.examples.notifications/.TransparentActivity: 368 ms (total 368 ms)


03-13 13:39:29.141: D/dalvikvm(150): GC_EXPLICIT freed 1355 objects / 84488 bytes in 116ms  


03-13 13:39:30.834: D/home(317): navigating to home  


03-13 13:39:30.851: I/ActivityManager(73): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10000000 cmp=com.android.launcher/com.android.launcher2.Launcher }


03-13 13:39:30.941: W/InputManagerService(73): Ignoring hideSoftInput of:   com.android.internal.view.IInputMethodClient$Stub$Proxy@451106e0


03-13 13:39:36.612: D/dalvikvm(317): GC_EXPLICIT freed 1704 objects / 109584 bytes in 108ms

      

        
        
        
      

    

For 4.0 ICS

03-13 13:43:02.343: I/ActivityManager(78): START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.examples.notifications/.NotificationsActivity} from pid 188


03-13 13:43:02.343: W/WindowManager(78): Failure taking screenshot for (120x180) to layer 21010


03-13 13:43:02.393: W/NetworkManagementSocketTagger(78): setKernelCountSet(10040, 1) failed with errno -2


03-13 13:43:03.333: I/ActivityManager(78): Displayed com.examples.notifications/.NotificationsActivity: +946ms


03-13 13:43:03.602: W/InputManagerService(78): Starting input on non-focused client com.android.internal.view.IInputMethodClient$Stub$Proxy@411d4098 (uid=10009 pid=188)


03-13 14:13:21.872: I/ActivityManager(78): START {cmp=com.examples.notifications/.TransparentActivity} from pid 557


03-13 14:13:21.872: W/WindowManager(78): Failure taking screenshot for (120x180) to layer 21015


03-13 14:13:22.012: V/PhoneStatusBar(143): setLightsOn(true)


03-13 14:13:22.502: D/dalvikvm(78): GC_CONCURRENT freed 499K, 11% free 8764K/9799K, paused 5ms+10ms


03-13 14:13:22.545: W/ThrottleService(78): unable to find stats for iface rmnet0


03-13 14:13:22.692: I/ActivityManager(78): Displayed com.examples.notifications/.TransparentActivity: +703ms


03-13 14:13:24.802: D/dalvikvm(143): GC_CONCURRENT freed 420K, 19% free 7121K/8775K, paused 15ms+7ms


03-13 14:13:25.812: W/WindowManager(78): Failure taking screenshot for (120x180) to layer 21025


03-13 14:13:26.192: V/PhoneStatusBar(143): setLightsOn(true)


03-13 14:13:26.361: W/ActivityManager(78): Activity pause timeout for ActivityRecord{4124ffb0 com.examples.notifications/.TransparentActivity}


03-13 14:13:26.373: W/NetworkManagementSocketTagger(78): setKernelCountSet(1000, 1) failed with errno -2


03-13 14:13:28.825: D/home(557): navigating to home


03-13 14:13:28.833: I/ActivityManager(78): START {act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x400000 cmp=com.android.launcher/com.android.launcher2.Launcher} from pid 557


03-13 14:13:28.864: W/NetworkManagementSocketTagger(78): setKernelCountSet(10040, 0) failed with errno -2