Starting a PreferenceActivity from a TabActivity

I have a TabActivity which starts when the application is launched. It contains 3 tabs. I have added a Settings option in the OptionMenu which when clicked starts a custom PreferenceActivity. it is a simple activity which does addPreferencesFromResource(R.xml.preferences); in its onCreate method. However, when the user clicks on the Settings option, I receiv开发者_如何学Pythone this warning and nothing is shown at all :

07-07 13:07:56.397: WARN/InputManagerService(110): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@4075fa28

What exactly is the problem with this? Is there any special way to handle Calling Activities inside TabActivity. How to fix this?

Thanks in advance.

---

Use the intent framework that indicates which custom PreferenceActivity to start. Something like below, I think.

getTabHost().addTabSpec().setContent(yourIntentHere);

---

Here's what I do:

TabHost tabHost = getTabHost();  // The activity TabHost
TabHost.TabSpec spec;            // Resusable TabSpec for each tab
Intent intent;                  // Reusable Intent for each tab

Then, for each tab:

intent = new Intent().setClass(this, YOURCLASS.class);
// Initialize a TabSpec for each tab and add it to the TabHost
spec = tabHost.newTabSpec("JUSTSOMENAME")
                 .setContent(intent);
tabHost.addTab(spec);

---

Instead of the using the xml, I did this programmatically inside each of the activities and it worked fine.