This problem is baffling me, I cannot work out why a call to startActivity() from the subclass of the running Activity causes this error. If I call startActivity() from the Activity itself, not the subclass of the Activity, it works fine.
Any ideas? I've spent too long on this problem now ;) On May 15, 11:54 pm, mscwd01 <[email protected]> wrote: > Here's the complete stack trace: > > 05-15 23:51:58.278: ERROR/AndroidRuntime(731): Uncaught handler: > thread main exiting due to uncaught exception > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): > java.lang.NullPointerException > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.content.ContextWrapper.getPackageName(ContextWrapper.java:119) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.content.ComponentName.<init>(ComponentName.java:74) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.content.Intent.<init>(Intent.java:2093) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > org.geotact.util.MenuListFactory.menuItemClicked(MenuListFactory.java: > 52) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > org.geotact.util.MenuListFactory.access$1(MenuListFactory.java:48) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > org.geotact.util.MenuListFactory$MenuClickListener.onItemClick > (MenuListFactory.java:69) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.widget.AdapterView.performItemClick(AdapterView.java:283) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.widget.ListView.performItemClick(ListView.java:3132) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.widget.AbsListView$PerformClick.run(AbsListView.java:1620) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.os.Handler.handleCallback(Handler.java:587) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.os.Handler.dispatchMessage(Handler.java:92) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.os.Looper.loop(Looper.java:123) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > android.app.ActivityThread.main(ActivityThread.java:3948) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > java.lang.reflect.Method.invokeNative(Native Method) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > java.lang.reflect.Method.invoke(Method.java:521) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run > (ZygoteInit.java:782) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540) > 05-15 23:51:58.340: ERROR/AndroidRuntime(731): at > dalvik.system.NativeStart.main(Native Method) > > On May 15, 6:12 pm, Dianne Hackborn <[email protected]> wrote: > > > Please include the complete stack crawl. > > > On Fri, May 15, 2009 at 9:14 AM, mscwd01 <[email protected]> wrote: > > > > Hey, > > > > I have a Activity and I have a class which extends this Activity. In > > > this subclass I call: > > > > startActivity(new Intent(this, CameraView.class)) > > > > Which should start the "CameraView" Activity. However, I always get > > > this error: > > > > ERROR/AndroidRuntime(876): java.lang.NullPointerException > > > ERROR/AndroidRuntime(876): at > > > android.content.ContextWrapper.getPackageName(ContextWrapper.java:119) > > > ERROR/AndroidRuntime(876): at android.content.ComponentName.<init> > > > (ComponentName.java:74) > > > ERROR/AndroidRuntime(876): at android.content.Intent.<init> > > > (Intent.java:2093) > > > > If it makes any difference the subclass creates a ListView and when a > > > row of the ListView is clicked it calls startActivity(); > > > > Any help is appreciated! Thanks > > > -- > > Dianne Hackborn > > Android framework engineer > > [email protected] > > > Note: please don't send private questions to me, as I don't have time to > > provide private support, and so won't reply to such e-mails. All such > > questions should be posted on public forums, where I and others can see and > > answer them. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
