Persei

Animated top menu for UITableView / UICollectionView / UIScrollView written in Swift!

Made inYalantis.

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Supported Swift versions

Swift Version	Persei
1.x	1.1
2.x	2.0
3.x	3.0
4.x	3.1
5.x	4.0

Installation

CocoaPods

use_frameworks!

pod'Persei','~> 4.0'

Carthage

github"Yalantis/Persei"~>4.0

Manual Installation

For application targets that do not support embedded frameworks, such as iOS 7, Persei can be integrated by including source files from the Persei folder directly, optionally wrapping the top-level types intostruct Perseito simulate a namespace. Yes, this sucks.

1. Add Persei as asubmoduleby opening the Terminal,cd-ing into your top-level project directory, and entering the commandgit submodule add https://github /yalantis/Persei.git
2. Open thePerseifolder, and dragPersei.xcodeprojinto the file navigator of your app project.
3. In Xcode, navigate to the target configuration window by clicking on the blue project icon, and selecting the application target under the "Targets" heading in the sidebar.
4. Ensure that the deployment target ofPersei.frameworkmatches that of the application target.
5. In the tab bar at the top of that window, open the "Build Phases" panel.
6. Expand the "Target Dependencies" group, and addPersei.framework.
7. Expand the "Link Binary With Libraries" group, and addSideMenu.framework
8. Click on the+button at the top left of the panel and select "New Copy Files Phase". Rename this new phase to "Copy Frameworks", set the "Destination" to "Frameworks", and addPersei.framework.

Usage

ImportPerseimodule

import Persei

Init

letmenu=MenuView()
tableView.addSubview(menu)

Configuring items

In order to set items you need to instantiate array ofMenuItem:

letitems=feedModes.map{mode: SomeYourCustomFeedMode->MenuItemin
returnMenuItem(image:mode.image)
}

menu.items=items

Handling selection

You can specify selected item manually:

menu.selectedIndex=3

Note, that selectedIndex declared asInt?and will benilin case ofmenu.items = nil.

Also, you can implementMenuViewDelegateto be notified about selection change:

// during init
menu.delegate=self

// actual implementation
extensionFeedViewController:MenuViewDelegate{
funcmenu(menu:MenuView,didSelectItemAt index:Int){
dataSource.mode=feedModes[index]// alter mode of dataSource

tableView.reload()// update tableView
}
}

Reveal menu manually

Menu can be reveal as a result of button tap:

funcmenuButtonSelected(sender:UIControl){
menu.revealed=!menu.revealed

// or animated
menu.setRevealed(true,animated:true)
}

Content Gravity

UsecontentViewGravityto control sticking behavior. There are 3 available options:

• Top:contentViewsticked to the top position of the view
• Center:contentViewis aligned to the middle of the streched view
• Bottom:contentViewsticked to the bottom

Customization

MenuItemdeclares set of attributes, that allow you to customize appearance of items:

structMenuItem{
varimage:UIImage// default image
varhighlightedImage:UIImage?// image used during selection

varbackgroundColor:UIColor// default background color
varhighlightedBackgroundColor:UIColor// background color used during selection

varshadowColor:UIColor// color of bottom 2px shadow line
}

Also you're free to configure background ofMenuViewby utilizingbackgroundColororbackgroundImage.Note, that image should be resizeable:

letmenu=MenuView()
menu.backgroundImage=UIImage(named:"top_menu_background")

Advanced customization

• Can I place the UIImageView instead?
• Sure! Just subclass / useStickyHeaderViewdirectly. It offers layout, positioning and reveal control. All you have to do is to assign your custom view (animated nian-cat UIImageView) tocontentView:

letheaderView=StickyHeaderView()
letimageView=UIImageView(...)

headerView.contentView=imageView

Obviously, your custom view can have heigh different from default:

headerView.contentHeight=image.size.height

As well as control distance to trigger open/close of the header:

headerView.threshold=0.5

Threshold is a float value from 0 to 1, specifies how much user needs to drag header for reveal.

Let us know!

We’d be really happy if you sent us links to your projects where you use our component. Just send an email togithub@yalantisAnd do let us know if you have any questions or suggestion regarding the animation.

P.S. We’re going to publish more awesomeness wrapped in code and a tutorial on how to make UI for iOS (Android) better than better. Stay tuned!

License

The MIT License (MIT)

Copyright © 2017 Yalantis

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software" ), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.