protected virtual void SwitchFragment(FragmentManager manager, AView targetView, ShellItem newItem, bool animate = true)
{
var previousView = _currentView;
_currentView = CreateShellItemRenderer(newItem);
_currentView.ShellItem = newItem;
var fragment = _currentView.Fragment;
FragmentTransaction transaction = manager.BeginTransactionEx();
if (animate)
{
transaction.SetTransitionEx((int)global::Android.App.FragmentTransit.FragmentOpen);
}
transaction.ReplaceEx(_frameLayout.Id, fragment);
// Don't force the commit if this is our first load
if (previousView == null)
{
transaction
.SetReorderingAllowedEx(true);
}
transaction.CommitAllowingStateLossEx();
void OnDestroyed(object sender, EventArgs args)
{
previousView.Destroyed -= OnDestroyed;
previousView.Dispose();
previousView = null;
}
if (previousView != null)
{
previousView.Destroyed += OnDestroyed;
}
}
