Switching between fragmentTabs giving unexpected results

Question

I am trying to implement FragmentTabs as illiustrated in http://developer.android.com/resources/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentTabs.html. Everything went well until i did this:

I started lots of different fragments from one tab like:

tab1-->fragment1--->fragment2--->fragment3

tab2

But when i switched to tab2 and again came back to tab1, I got fragment1 screen not fragment3(i.e. I have 3 fragments in first tab and while i am on 3rd fragment and I come again on first tab after switching to second tab, I am taken to 1st fragment not 3rd)..Can anyone tell what might be the prob?

        @Override
        public void onTabChanged(String tabId) {
            TabInfo newTab = mTabs.get(tabId);
            if (mLastTab != newTab) {
                FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction();
                if (mLastTab != null) {
                    if (mLastTab.fragment != null) {
                        ft.detach(mLastTab.fragment);
                    }
                }
                if (newTab != null) {
                    if (newTab.fragment == null) {
                        newTab.fragment = Fragment.instantiate(mActivity,
                                newTab.clss.getName(), newTab.args);
                        ft.add(mContainerId, newTab.fragment, newTab.tag);
                    } else {
                        ft.attach(newTab.fragment);
                    }
                }

                mLastTab = newTab;
                ft.commit();
                mActivity.getSupportFragmentManager().executePendingTransactions();
            }
        }

When i comment attach() and detatch(), I get this :

Answer 1

Without more details it's tough to say what's wrong specificaly. However, I can say from personal experience that when I first had to implement fragment tabs, I went through a lot of lousy tutorials before finding something that worked. The tutorial that finally made sense for me is here: http://thepseudocoder.wordpress.com/2011/10/04/android-tabs-the-fragment-way/

As a bonus, there's also some Github source code: https://github.com/mitchwongho/Andy/tree/master/Andy/src/com/andy/fragments/tabs