How to populate listview adapter from outside Activity in a TabActivity
<p>I have the following problem.</p>

<p>I am in a tabActivity with 2 tabs. Every tab will launch the same activity, but there is a onTabChangeListener.
In this tabchange listener i need to set up the listview adapter that is different for each activity.
So i will have two different lists, and i want to change their adapter from TabActivity, from this onTabchangeListener, but i get the following error: system services not available to activities before oncreate()
The code for tabs is:</p>

<pre><code>  host = getTabHost();

    host.addTab(host.newTabSpec(TAG_AVAILABLE).setIndicator("First Tab")
            .setContent(new Intent(this, MyActivity.class)));
    host.addTab(host.newTabSpec(TAG_DOWNLOAD).setIndicator("Second Tab ")
            .setContent(new Intent(this, MyActivity.class)));
    host.setOnTabChangedListener(new TabHost.OnTabChangeListener() {
        @Override
        public void onTabChanged(String s) {
            MyActivity myActivity = new MyActivity();
            int i = getTabHost().getCurrentTab();
            if (i == FIRST_TAB) {
                setAdapterForMyActivity(firstAdapter);       
            }
            }
            if (i == SECOND_TAB) {
                 setAdapterForMyActivity(secondAdapter);        
            }
            }
        }
    });

}
</code></pre>

<p>The main question is how to set adapter of an listView which is in an Activity from TabActivity.
Thank you very much.</p>
