Question

I have a non-Activity class (let’s call it “NonActivity”) that needs to post a message and get user feedback. I have a message activity (MsgActivity) class to do this. But only Activity classes can call startActivityForResult() so I made an inner helper class in NoActivity:

  // just to provide an Activity to launch MsgActivity
  class ActivityMsgClass extends Activity  {

        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            Intent iMA = new Intent(this, MsgActivity.class);
            iMA.putExtra("MsgText", mParams[0]);
       ...blah blah ...
            iMA.putExtra("ButtonCode", iBtns);
            startActivityForResult(iMA,3);          
        }     
  }

My Activity class is declared in the Manifest thusly:

<activity android:name="ActivityMsgClass"
          android:configChanges="orientation"
          android:screenOrientation="portrait"
          android:launchMode="singleInstance"></activity>

But when I try to invoke it . . .

                Intent i = new Intent(ctx, ActivityMsgClass.class);
                i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                ctx.startActivity(i);

… I get an ActivityNotFound exception. I’ve also tried it without the FLAG_ACTIVITY_NEW_TASK, and I’ve also tried qualifying the name in the manifest, e.g.,

<activity android:name=".NoActivity.ActivityMsgClass"

. . . to no avail. What am I doing wrong?

Thanks in advance.

Answer 1

The technical solution is to specify the fully qualified activity path in the manifest.

The actual solution is to avoid doing this. Let activity be a public class, and not an inner class, this is just not good practice.