public bool OnNavigationItemSelected(IMenuItem item)
{
transaction = FragmentManager.BeginTransaction();
hideAllFragment(transaction);
switch (item.ItemId)
{
case Resource.Id.navigation_home:
if (f1 == null)
{
f1 = new cityFragment();
transaction.Add(Resource.Id.myfragment, f1);
}
else
{
transaction.Show(f1);
}
break;
case Resource.Id.navigation_dashboard:
if (f2 == null)
{
f2 = new MyFragment();
transaction.Add(Resource.Id.myfragment, f2);
}
else
{
transaction.Show(f2);
}
break;
//textMessage.SetText(Resource.String.title_dashboard);
//return true;
case Resource.Id.navigation_notifications:
// textMessage.SetText(Resource.String.title_notifications);
// return true;
if (f3 == null)
{
f3 = new MyFragment();
transaction.Add(Resource.Id.myfragment, f3);
}
else
{
transaction.Show(f3);
}
break;
}
transaction.Commit();
return(false);
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.activity_main);
transaction = FragmentManager.BeginTransaction();
myfragment = (FrameLayout)FindViewById(Resource.Id.myfragment);
textMessage = FindViewById <TextView>(Resource.Id.message);
BottomNavigationView navigation = FindViewById <BottomNavigationView>(Resource.Id.navigation);
navigation.SetOnNavigationItemSelectedListener(this);
cityFragment f = new cityFragment();
//MyFragment f = new MyFragment();
transaction.Add(Resource.Id.myfragment, f);
transaction.Commit();
}