A multifunctional framework for banner unlimited rollover diagrams

JXBanner

JXBanner relies on JXPageConytrol and includes many custom interfaces, such as transformation animation, view structure, and Settings.

Installation

To install, simply add the following code to your Podfile :

platform :ios, '8.0'

target 'TargetName' do
pod 'JXBanner'
end

The UI effect

• default

You don't need to set JXBanner -> JXBannerLayoutParams

• JXBannerTransformLinear

• JXBannerTransformCoverflow

• custom

Need to implement JXBannerTransformable agreement, modify UICollectionViewLayoutAttributes - > the "transform3D" or "transform" properties

Frame set

Banner 【Public class file of the graph framework in rotation】

• API ---> All interfaces that developers can call
• Cell ---> The framework provides cell base class (if you want to customize cell content, create a new cell that inherits from JXBannerBaseCell)
• Common ---> Framework common class files
• Transform ---> Animation class files (if the framework provided by the animation effect can't meet the demand of the developer, can achieve new JXBannerTransformable agreement struct/class , modified UICollectionViewLayoutAttributes - > the transform3D or transform properties)

PageControl -- Indicator class file

• JXBannerPageControlBuilder ---> Builder class for pageControl
• JXBannerPageControlDefault ---> Framework of the default pageControl style (can be implemented through JXBannerDataSource - > 【 jxBanner (pageControl banner: numberOfPages: coverView: builder:) - > JXBannerPageControlBuilder 】 protocol method modify the style)

JXBanner : Introduction to important documents

JXBannerParams 【Banner basic properties】

• isAutoPlay ---> Automatically play
• isBounces ---> Whether the boundary can slip beyond the boundary
• timeInterval ---> Play scheduling interval
• isShowPageControl ---> Whether internal load indicator ( JXPageControl（Framework features） )
• cycleWay ---> Loop mode（Framework features） （Forward: wireless right play, skipEnd: end-to-end custom animation jump, rollingBack: left-right rollback mode）
• edgeTransitionType ---> CycleWay uses skipEnd to choose how to animate
• edgeTransitionSubtype ---> CycleWay uses skipEnd to choose how to animate

JXBannerLayoutParams 【Banner layout, animation properties】

• itemSize ---> The cell size。
• itemSpacing ---> Cell margins left and right。
• layoutType ---> Animation effectsJXBannerTransformable（Framework features）
• minimumScale ---> Cell scaling factor。
• minimumAlpha ---> Cell transparency coefficient。
• maximumAngle ---> Cell rotation coefficient。
• rateOfChange ---> Cell variation coefficient。
• rateHorisonMargin ---> Cell horizontal spacing adjustment factor。

JXBannerCellRegister 【Cell registers builders】

• type ---> To register the cell type, you must be a subclass of JXBannerBaseCell
• reuseIdentifier ---> Cell reuse identity

var type: JXBannerBaseCell.Type
var reuseIdentifier: String

JXBanner use

Example 1

• Default implementation example

import SnapKit
import JXBanner

class JXDefaultVC: UIViewController {

    var pageCount = 5

    lazy var banner: JXBanner = {
        let banner = JXBanner()
        banner.backgroundColor = UIColor.black
        banner.placeholderImgView.image = UIImage(named: "banner_placeholder")
        banner.delegate = self
        banner.dataSource = self
        return banner
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(banner)
        banner.snp.makeConstraints { (maker) in
            maker.left.right.equalTo(view)
            maker.height.equalTo(250)
            maker.top.equalTo(view.snp_top).offset(100)
        }
        self.automaticallyAdjustsScrollViewInsets = false
    }

    deinit {
        print("\(#function) ----------> \(#file.components(separatedBy: "/").last?.components(separatedBy: ".").first ?? #file)")
    }
}

//MARK:- JXBannerDataSource
extension JXDefaultVC: JXBannerDataSource {

    // 注册重用Cell标识
    func jxBanner(_ banner: JXBannerType)
        -> (JXBannerCellRegister) {
            return JXBannerCellRegister(type: JXBannerCell.self,
            reuseIdentifier: "JXDefaultVCCell")
        }

    // 轮播总数
    func jxBanner(numberOfItems banner: JXBannerType)
        -> Int { return pageCount }

    // 轮播cell内容设置
    func jxBanner(_ banner: JXBannerType,
        cellForItemAt index: Int,
        cell: JXBannerBaseCell)
        -> JXBannerBaseCell {
            let tempCell: JXBannerCell = cell as! JXBannerCell
            tempCell.layer.cornerRadius = 8
            tempCell.layer.masksToBounds = true
            tempCell.imageView.image = UIImage(named: "banner_placeholder")
            tempCell.msgLabel.text = String(index) + "---来喽来喽,他真的来喽~"
            return tempCell
        }

    // banner基本设置（可选）
    func jxBanner(_ banner: JXBannerType,
        layoutParams: JXBannerLayoutParams)
        -> JXBannerLayoutParams {
            return layoutParams
            .itemSize(CGSize(width: UIScreen.main.bounds.width - 40, height: 200))
            .itemSpacing(20)
        }
}

//MARK:- JXBannerDelegate
extension JXDefaultVC: JXBannerDelegate {

    // 点击cell回调
    public func jxBanner(_ banner: JXBannerType,
    didSelectItemAt index: Int) {
    print(index)
    }

}

Example 2

• personalization

import SnapKit
import JXBanner
import JXPageControl

class JXCustomVC: UIViewController {

    var pageCount = 5

    lazy var linearBanner: JXBanner = {[weak self] in
        let banner = JXBanner()
        banner.placeholderImgView.image = UIImage(named: "banner_placeholder")
        banner.backgroundColor = UIColor.black
        banner.indentify = "linearBanner"
        banner.delegate = self
        banner.dataSource = self    
        return banner
    }()

    lazy var converflowBanner: JXBanner = {
        let banner = JXBanner()
        banner.placeholderImgView.image = UIImage(named: "banner_placeholder")
        banner.backgroundColor = UIColor.black
        banner.indentify = "converflowBanner"
        banner.delegate = self
        banner.dataSource = self
        return banner
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(linearBanner)
        view.addSubview(converflowBanner)
        linearBanner.snp.makeConstraints {(maker) in
            maker.left.right.equalTo(view)
            maker.height.equalTo(200)
            maker.top.equalTo(view.snp_top).offset(100)
        }

        converflowBanner.snp.makeConstraints {(maker) in
            maker.left.right.height.equalTo(linearBanner)
            maker.top.equalTo(linearBanner.snp_bottom).offset(100)
        }

        self.automaticallyAdjustsScrollViewInsets = false
    }

    deinit {
        print("\(#function) ----------> \(#file.components(separatedBy: "/").last?.components(separatedBy: ".").first ?? #file)")
    }
}

//MARK:- JXBannerDataSource
extension JXCustomVC: JXBannerDataSource {

    // 注册重用Cell标识
    func jxBanner(_ banner: JXBannerType)
        -> (JXBannerCellRegister) {

        if banner.indentify == "linearBanner" {
            return JXBannerCellRegister(type: JXBannerCell.self,
                reuseIdentifier: "LinearBannerCell")
        }else {
            return JXBannerCellRegister(type: JXBannerCell.self,
            reuseIdentifier: "ConverflowBannerCell")
        }
    }

    // 轮播总数
    func jxBanner(numberOfItems banner: JXBannerType)
        -> Int { return pageCount }

    // 轮播cell内容设置
    func jxBanner(_ banner: JXBannerType,
        cellForItemAt index: Int,
        cell: JXBannerBaseCell)
        -> JXBannerBaseCell {
            let tempCell: JXBannerCell = cell as! JXBannerCell
            tempCell.layer.cornerRadius = 8
            tempCell.layer.masksToBounds = true
            tempCell.imageView.image = UIImage(named: "banner_placeholder")
            tempCell.msgLabel.text = String(index) + "---来喽来喽,他真的来喽~"
            return tempCell
    }

    // banner基本设置（可选）
    func jxBanner(_ banner: JXBannerType,
        params: JXBannerParams)
        -> JXBannerParams {

        if banner.indentify == "linearBanner" {
            return params
                .timeInterval(2)
                .cycleWay(.forward)
        }else {
            return params
                .timeInterval(3)
                .cycleWay(.forward)
        }
    }

// banner布局、动画设置
    func jxBanner(_ banner: JXBannerType,   
        layoutParams: JXBannerLayoutParams)
        -> JXBannerLayoutParams {

        if banner.indentify == "linearBanner" {
            return layoutParams
                .layoutType(JXBannerTransformLinear())
                .itemSize(CGSize(width: 250, height: 190))
                .itemSpacing(10)
                .rateOfChange(0.8)
                .minimumScale(0.7)
                .rateHorisonMargin(0.5)
                .minimumAlpha(0.8)
        }else {
            return layoutParams
                .layoutType(JXBannerTransformCoverflow())
                .itemSize(CGSize(width: 300, height: 190))
                .itemSpacing(0)
                .maximumAngle(0.25)
                .rateHorisonMargin(0.3)
                .minimumAlpha(0.8)
        }
    }

    // 自定义pageControl样式、布局
    //（基于jxPageControl, 如果不适用JXPageControl, 设置isShowPageControl = false， 内部pageControl将不会再次加载 ） 
    func jxBanner(pageControl banner: JXBannerType,
        numberOfPages: Int,
        coverView: UIView,
        builder: JXBannerPageControlBuilder) -> JXBannerPageControlBuilder {

            if banner.indentify == "linearBanner" {
                let pageControl = JXPageControlScale()
                pageControl.contentMode = .bottom
                pageControl.activeSize = CGSize(width: 15, height: 6)
                pageControl.inactiveSize = CGSize(width: 6, height: 6)
                pageControl.activeColor = UIColor.red
                pageControl.inactiveColor = UIColor.lightGray
                pageControl.columnSpacing = 0
                pageControl.isAnimation = true
                builder.pageControl = pageControl
                builder.layout = {
                    pageControl.snp.makeConstraints { (maker) in
                        maker.left.right.equalTo(coverView)
                        maker.top.equalTo(coverView.snp_bottom).offset(10)
                        maker.height.equalTo(20)
                    }
                }
                return builder  

            }else {
                let pageControl = JXPageControlExchange()
                pageControl.contentMode = .bottom
                pageControl.activeSize = CGSize(width: 15, height: 6)
                pageControl.inactiveSize = CGSize(width: 6, height: 6)
                pageControl.activeColor = UIColor.red
                pageControl.inactiveColor = UIColor.lightGray
                pageControl.columnSpacing = 0
                builder.pageControl = pageControl
                builder.layout = {
                    pageControl.snp.makeConstraints { (maker) in
                        maker.left.right.equalTo(coverView)
                        maker.top.equalTo(coverView.snp_bottom).offset(10)
                        maker.height.equalTo(20)
                    }
                }
                return builder
        }

    }

}

//MARK:- JXBannerDelegate
extension JXCustomVC: JXBannerDelegate {

    // 点击cell回调
    public func jxBanner(_ banner: JXBannerType,
        didSelectItemAt index: Int) {
        print(index)
    }

    // 设置自定义覆盖View, 比如添加自定义外部pageControl和布局
    func jxBanner(_ banner: JXBannerType, coverView: UIView) {
        let title = UILabel()
        title.frame = CGRect(x: 0, y: 0, width: 100, height: 30)
        title.text = "JXBanner"
        title.textColor = UIColor.red
        title.font = UIFont.systemFont(ofSize: 16)
        coverView.addSubview(title)
    }

    // 最中心显示cell 索引
    func jxBanner(_ banner: JXBannerType, center index: Int) {
        print(index)
    }
}

Example 3

If the animation provided by the framework does not meet the developer's requirements：

• 1.Rotation diagram animation style developers can customize the implementation, As long as it is a new implementation JXBannerTransformable agreement struct/class, modify UICollectionViewLayoutAttributes - > the transform3D or transform properties

//
//  JXCustomTransform.swift
//  JXBanner_Example
//
//  Created by Coder_TanJX on 2019/7/30.
//  Copyright © 2019 CocoaPods. All rights reserved.
//

import UIKit
import JXBanner

struct JXCustomTransform: JXBannerTransformable {

    public func transformToAttributes(collectionView: UICollectionView,
        params: JXBannerLayoutParams,
        attributes: UICollectionViewLayoutAttributes) {

        let collectionViewWidth = collectionView.frame.width
        if collectionViewWidth <= 0 { return }

        let centetX = collectionView.contentOffset.x + collectionViewWidth * 0.5;
        let delta = abs(attributes.center.x - centetX)
        let calculateRate = 1 - delta / collectionViewWidth
        let angle = min(delta / collectionViewWidth * (1 - params.rateOfChange), params.maximumAngle)
        let alpha = max(calculateRate, params.minimumAlpha)


        applyCoverflowTransformToAttributes(viewCentetX: centetX,
            attributes: attributes,
            params: params,
            angle: angle,
            alpha: alpha,
            calculateRate: calculateRate)
    }

    func applyCoverflowTransformToAttributes(viewCentetX: CGFloat,
        attributes: UICollectionViewLayoutAttributes,
        params: JXBannerLayoutParams,
        angle: CGFloat,
        alpha: CGFloat,
        calculateRate: CGFloat) -> Void {
        var transform3D: CATransform3D = CATransform3DIdentity


        let location = JXBannerTransfrom.itemLocation(viewCentetX: viewCentetX,
        itemCenterX: attributes.center.x)

        var _angle = angle
        var _alpha = alpha
        var _translateX: CGFloat = 0
        var _translateY: CGFloat = 0
        attributes.zIndex = 0

        switch location {
        case .left:
            _angle = angle
            _translateX = 0.2 * attributes.size.width * (1 - calculateRate) / 4
            _translateY = 0.4 * attributes.size.height * (1 - calculateRate)


        case .right:
            _angle = -angle
            _translateX = -0.2 * attributes.size.width * (1 - calculateRate) / 4
            _translateY = 0.4 * attributes.size.height * (1 - calculateRate)

        case .center:
            _angle = 0
            _alpha = 1
            _translateY = 0
            attributes.zIndex = 10000
        }

        transform3D = CATransform3DTranslate(transform3D, _translateX, _translateY, 0)
        transform3D = CATransform3DRotate(transform3D, -CGFloat.pi * _angle, 0, 0, 1)
        attributes.alpha = _alpha
        attributes.transform3D = transform3D
    }

}

• 2. Set up custom implementation animation

JXBannerDataSource -> 【jxBanner(_ banner: layoutParams: ) -> JXBannerLayoutParams】

// JXCustomTransform()

    func jxBanner(_ banner: JXBannerType,
        layoutParams: JXBannerLayoutParams)
        -> JXBannerLayoutParams {

        return layoutParams
            .layoutType(JXCustomTransform())
    }

GitHub