monotouch - set current view - xamarin.ios

Question

I have a UISegmented control, which act as a tabs.
When a tab is clicked I wanted to change the view to another page.
Essentially at the moment I have two views each have their own segment control which switches from one view to the other and vice versa.
If I use PresentModalViewController I continually adding the view to the stack each time the user changes the uiSegment which isn't good.
I want to set the current view to a new view.
but at the same time ensure that if I call dismiss I can do back a view
My applicantion is structure like so:
[Main Window] --> [VC shows table of items] -->
|--> [VC with Segment control View 1]
| (swap between)
|--> [VC with Segment control View 2]
so in both the views I would have for instance:
View1:
partial void Tabs_Changed (UISegmentedControl sender)
{
if( btnTabs.SelectedSegment == 1) {
View2 view2 = new View2(); //load view 2
this.PresentModalViewController(view2,false);
}
}
View 2:
partial void Tabs_Changed (UISegmentedControl sender)
{
if( btnTabs.SelectedSegment == 0) {
View1 view1 = new View1(); //load view 1
this.PresentModalViewController(view1,false);
}
}
But this is making the app unpredictable presumably cause I'm constantly stacking up views?
Please help.
Jason

Answer 1

Using the PresentModalViewController() method really is not the way to go. You are indeed stacking multiple views which is a bad thing to do.
What I would do is have one view, with the UISegmentedControl and another 2 subviews added to it (use the AddSubview(View) method to do that).
On your viewDidLoad method, create the veiws and hide the second one using:
view1 = new UIView(){BackgroundColor = UIColor.Green};
view2 = new UIView(){Hidden = true, BackgroundColor = UIColor.Red};
this.AddSubview(view1);
this.AddSubview(view2);
Now, in your method:
partial void Tabs_Changed (UISegmentedControl sender)
{
bool v1Visible = btnTabs.SelectedSegment == 0);
view1.Hidden = !v1Visible;
view2.Hidden = v1Visible;
}
I havent run the code, but it should work. Hope this helps.

Answer 2

This might help. switching between uiviewcontrollers without a UI navigator control
but doesnt need an UI to switch, call the App deletegate from your viewcontroller with
something like
var appDelegate = (AppDelegate) UIApplication.SharedApplication.Delegate;
appDelegate.switch();