Java Question Getting the class of a activity.

barx

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Longtime User
Informatix - see edit to last post.

Also, kinda got it working now with your solution but there are still issues.

B4X: 
      stackBuilder.addNextIntent(resultIntent);
      if (nTag != null)
         resultIntent.putExtra("Notification_Tag", nTag);         
         
      if(pActivity != null) {
         //stackBuilder.addParentStack(pActivity.getClass());

         //Informatix fix test
         String pn = BA.packageName;
         ComponentName cn = new ComponentName(pn, pn + "." + pActivity.toLowerCase((BA.cul)));
         BA.Log(cn.toString());
         stackBuilder.addParentStack(cn);
      }

using the above code it shows the parent first then goes back to the child 'popup', then exits the app. It should be the other way round. I re-checked the documentation I have been reading and it indeed puts the .addNextIntent after the .addParentStack. So I moved the addNextIntent down and then neither work. tapping the notification does nothing. Go figure....
 

Informatix

Expert
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My limited skills can't help you more in this matter. I never tried to do that and I'm as puzzled as you are.
 

barx

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Licensed User
Longtime User
Informatix said:
My limited skills can't help you more in this matter. I never tried to do that and I'm as puzzled as you are.
Click to expand...

No worries. Thanks for your help though. It's really helped.
 

barx

Well-Known Member
Licensed User
Longtime User
Hey Informatix, Can I have you 'limited skills' back for a few minutes please. I thought this was working, but I have now fixed a different issue and this kicks up a fuss now.

Java code:

B4X: 
      if (pActivity != null) {
         String pn = BA.packageName;
         ComponentName cn = new ComponentName(pn, pn + "." + pActivity.toLowerCase((BA.cul)));
         stackBuilder.addParentStack(cn);
      }

Error when called from b4a

B4X: 
** Activity (main) Create, isFirst = true **


main_activity_create (java line: 256)


java.lang.IllegalArgumentException: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{barxdroid.nbtest/barxdroid.nbtest.Main2}
   at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:236)
   at barxdroid.NotificationBuilder.NotificationBuilder.Notify(NotificationBuilder.java:256)
   at barxdroid.nbtest.main._activity_create(main.java:256)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
   at barxdroid.nbtest.main.afterFirstLayout(main.java:85)
   at barxdroid.nbtest.main.access$100(main.java:16)
   at barxdroid.nbtest.main$WaitForLayout.run(main.java:72)
   at android.os.Handler.handleCallback(Handler.java:605)
   at android.os.Handler.dispatchMessage(Handler.java:92)
   at android.os.Looper.loop(Looper.java:137)
   at android.app.ActivityThread.main(ActivityThread.java:4575)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
   at dalvik.system.NativeStart.main(Native Method)
Caused by: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{barxdroid.nbtest/barxdroid.nbtest.Main2}
   at android.app.ApplicationPackageManager.getActivityInfo(ApplicationPackageManager.java:223)
   at android.support.v4.app.NavUtils.getParentActivityName(NavUtils.java:298)
   at android.support.v4.app.NavUtils.getParentActivityIntent(NavUtils.java:261)
   at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:229)
   ... 17 more
java.lang.IllegalArgumentException: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{barxdroid.nbtest/barxdroid.nbtest.Main2}

I had this error before, but it was before adding your code.

Thanks
 

barx

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Licensed User
Longtime User
It appears I have made an error in my manifest data. My apologies.

Now I get no error but also the parent still not getting shown

Is the return of the Component name the equivalent of passing the class.

I still can't help thinking that this Component Name is passing data like

B4X: 
Setting Parent - ComponentInfo{barxdroid.nbtest/barxdroid.nbtest.main2}

Yet the example shows

B4X: 
stackBuilder.addParentStack(ResultActivity.class);

So I'm expecting to see a main2.class or something.
 
Last edited:

barx

Well-Known Member
Licensed User
Longtime User
Just managed to test on a jellybean device and it seems to be working. Maybe a version thing I.e. > ics.

Thanks for your help.
 
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