JXMarqueeView

A powerful and easy to use marquee view.

中文博客介绍

Features

• Automatically start marquee. (When the content beyond size, marquee start automatically.)
• Support UIView an its subclasses. (More than just UILabel, you can customize the view to turn on the marquee effect.)

Preview

JXMarqueeType.left：From right to left

JXMarqueeType.right：From left to right

JXMarqueeType.reverse：reverse

Requirements

• XCode 9.0+
• Swift 5.0+ (greater or equal 0.0.8 version)

Installation

1. Manually
   • Download source code, drag JXMarqueeView.swift file into your project.
2. Cocoapods

use_frameworks!
target '<Your Target Name>' do
    pod 'JXMarqueeView'
end

Usage

• contentMargin

The interval between two views,default is 12.

• frameInterval

Assiagned to CADisplayLink frameInterval property,default is 1.

• pointsPerFrame

How many points each time for callback of CADisplayLink.The bigger the faster.

• contentView

The view your need to marquee.

• SizeToFit

When you customize complex content view, you need override func sizeThatFits(_ size: CGSize) -> CGSize,and return you correct content size.

Use case

//text
let label = UILabel()
label.textColor = UIColor.red
label.font = UIFont.systemFont(ofSize: 30, weight: .medium)
label.text = "abcdefghijklmnopqrstuvwxyz"

marqueeView.contentView = label
marqueeView.contentMargin = 50
marqueeView.marqueeType = .left
self.view.addSubview(marqueeView)

//picture
let imageView = UIImageView(image: UIImage(named: "haizeiwang.jpeg"))
imageView.contentMode = .scaleAspectFill

marqueeView.contentView = imageView
marqueeView.marqueeType = .reverse
self.view.addSubview(marqueeView)

Customize

The default implementation of contentView's copy using code:

let archivedData = NSKeyedArchiver.archivedData(withRootObject: self)
let copyView = NSKeyedUnarchiver.unarchiveObject(with: archivedData) as! UIView

But if the view has cornerRadius、shadow, the copyView will lose it. So you should implement protocol JXMarqueeViewCopyable function func copyMarqueeView() -> UIView. Just return a new instance UIView. Just checkout CustomCopyView.swift in example.

Picture case preview

Custom case preview