How can I animate a View to fly in from the bottom of the screen? - xamarin.ios

Question

I'm trying to figure out how to have a view. Let's call it ThirdView. It should slide up from the bottom of the screen when a user clicks a particular button on SecondView.

Answer 1

You'll want to create the ThirdView in your SecondView and present it as a modal view, passing in the secondView in the constructor. This will be the easiest way of animating it in the way you would like.
var thirdView = new ThirdView(secondView);
this.PresentModalViewController(thirdView, true);
In your third view, you'll want to call the passed-in SecondView and call:
secondView.DismissModalViewControllerAnimated(true);

Answer 2

Here is a complete working example. It is a tad simpler than in chrisntr's answer...though the above example is what I used to figure everything out.
The coolest thing about this method is that for an artistic custom UI (like the one I am building for a game), there is no off-the-shelf UI elements like the TabBar, Navigation bars, etc. The most creative applications don't use standard UI stuff.
In your main.cs file, in your finishedlaunching block:
ViewController myUIV = new ViewController();
window.AddSubview(myUIV.View);
window.MakeKeyAndVisble();
And then in a new code file add this code:
using System;
using System.Drawing;
using MonoTouch.UIKit;
namespace AnimationTest
{
public class ViewController : UIViewController
{
UIButton uib = new UIButton(new RectangleF(100, 100, 40, 40));
public override void ViewDidLoad()
{
Console.WriteLine("UI1");
this.View.BackgroundColor = UIColor.Blue;
uib.BackgroundColor = UIColor.White;
uib.TouchUpInside += delegate {
Console.WriteLine("Hey!");
var vc2 = new SecondController();
PresentModalViewController(vc2, true);
};
this.View.AddSubview(uib);
base.ViewDidLoad();
}
}
public class SecondController : UIViewController
{
UIButton uib = new UIButton(new RectangleF(100, 100, 40, 40));
public override void ViewDidLoad()
{
this.View.BackgroundColor = UIColor.White;
uib.BackgroundColor = UIColor.Red;
uib.TouchUpInside += delegate {
this.DismissModalViewControllerAnimated(true);
};
this.View.AddSubview(uib);
base.ViewDidLoad();
}
}