monotouch - set current view

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

score 0 · Accepted Answer · answered Feb 26 '11 at 18:14

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.

score 0 · Answer 2 · edited May 23 '17 at 12:15

0

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();

edited May 23 '17 at 12:15

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answered May 12 '11 at 21:10

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monotouch - set current view

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