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README.md

TZStackView

Build status

This is a port of Tom van Zummeren's TZStackView, which provides a backport of UIStackView, which was introduced in iOS 9.

StackView provides an easy way to lay out views horizontally and vertically and UIStackView is the new recommended way to lay out things in iOS 9, instead of resolving to use explicit view constraints.

Features

  • Compatible with iOS 7 and 8

  • Complete API of UIStackView with all distribution and alignment options

  • Animation of hidden property

  • Support for storyboards.

Installing

Add the TZStackView nuget to your Xamarin.iOS project

Install-Package TZStackView

Usage

Given view1, view2 and view3 have intrinsic content sizes set to 100x100, 80x80 and 60x60 respectively.

var stackView = new StackView(new UIView[] {view1, view2, view3})
{
    Axis = UILayoutConstraintAxis.Vertical,
    Distribution = Distribution.FillEqually,
    Alignment = Alignment.Center,
    Spacing = 25
};

This will produce the following layout. Layout Example

To animate adding or removing a view from the arranged subviews simply toggle the Hidden property on the view.

UIView.AnimateNotify(0.6, 0, 0.7f, 0, UIViewAnimationOptions.AllowUserInteraction, 
	() => { view.Hidden = true; }, completed => { });

Migrating to UIStackView

If you at some point want to make iOS 9 the minimum target of your application, you will want to replace this with UIStackView. Since TZStackView is a drop in replacement of UIStackView, you should be able to just use UIStackView instead.

var stackView = StackView(subViews);
var stackView = UIStackView(subViews);

License

TZStackView is licensed under the MIT License. See the LICENSE file for details.

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