void AddTabToActionBar(string tabTitle)
{
ActionBar.Tab tab = ActionBar.NewTab().SetText(tabTitle);
tab.TabSelected += TabOnTabSelected;
ActionBar.AddTab(tab);
}
void TabOnTabSelected(object sender, ActionBar.TabEventArgs tabEventArgs)
{
ActionBar.Tab tab = (ActionBar.Tab)sender;
//Log.Debug(Tag, "The tab {0} has been selected.", tab.Text);
Fragment frag = _fragments[tab.Position];
tabEventArgs.FragmentTransaction.Replace(Resource.Id.frameLayout1, frag);
}