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BannerHoverView

便于构建 Header 悬停效果

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0

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154

Maintenance

Last Commit

4yrs ago

Contributors

3

Package

Dependencies

0

License

MIT

Categories

Readme

banner

Description

BannerHoverView is made to construct a special view controller layout. This layout is like the screen shot demo. (A header can scroll up and hover in the screen.) I think it is a common layout and I make the header hovered view independent.

So, quick to build hover view by BannerHoverView in iOS development.

Screenshot

img

Usage

1. Import BannerHoverView

Please refer to Install.

2. Definition Derived View

It's like the SampleView below:

class SampleView: BannerHoverView {
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        self.setScrollAction { (view, offset) in
            // offset - distance percent
        }
        
        self.setTopAction { (view) in
            // scroll top callback
        }
        
        self.setBottomAction { (view) in
            // scroll bottom callback
        }
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

3. Use In ViewController

Property

var tableView: UITableView!
var bannerHoverView: SampleView!

Init properties and KVO setting

// TableView Initial
tableView = UITableView.init(frame: view.bounds, style: .grouped)
tableView.dataSource = self
tableView.delegate = self

// BannerHoverView Initial
bannerHoverView = SampleView.init(frame: CGRect.init(x: 0, y: 0, width: view.frame.size.width, height: 280))
// Hover Height(Remaining part when BannerHoverView arrived at the top position)
bannerHoverView.top = 65
// Scroll Property Setting
bannerHoverView.headerScrollView = tableView

// Add Observer
tableView.addObserver(bannerHoverView, forKeyPath: "contentOffset", options: NSKeyValueObservingOptions.new, context: nil)
        
view.addSubview(tableView)
view.addSubview(bannerHoverView)

Delete Observer in ViewController

deinit {
    tableView.removeObserver(bannerHoverView, forKeyPath: "contentOffset")
}

Install

1. Cocoapods

pod 'BannerHoverView', '~> 0.0.1'

And you will get the BannerHoverView.swift file. 😎

2. Copy the source code in you project

You can copy the BannerHoverView folder and its source file BannerHoverView.swift in your project.

MIT License

Copyright (c) 2017 Desgard_Duan

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.

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