原理
用户在使用app的时候，用户肯定会多次打开app的，但是如果网速慢图片大，总不能让用户看3秒默认启动图吧？那样体验太不好了，因此还是加入缓存机制比较好。我的实现思路是，第一次不让用户去看这个3秒广告了，直接略过，开一个线程去缓存这张图片。第二次用户再启动app的时候，判断广告有效时间显示图片 ，gif、视频同理。
效果图
Example.gif
gif.gif
]
vidio.gif
部分代码
AppDelegate 需要显示广告图的时候添加以下代码
import MDSplashScreen
if type == .localImage{
let adView = MDSplashScreenView.init(type: .localImage)
adView.img = "localImage.JPG"
adView.linkUrl = "https://www.baidu.com/"
adView.imageValidTime = "03/02/2018 14:25"
adView.showSplashScreenWithTime(showTime: 3)
}else if type == .localGif{
let adView = MDSplashScreenView.init(type: .localGif)
adView.img = "localGIf"
adView.linkUrl = "https://www.baidu.com/"
adView.imageValidTime = "03/02/2018 14:25"
adView.showSplashScreenWithTime(showTime: 3)
}else if type == .localVidio{
let adView = MDSplashScreenView.init(type: .localVidio)
adView.img = "localVidio"
adView.linkUrl = ""
adView.imageValidTime = "03/02/2018 14:25"
adView.videoCycleOnce = false //是否循环
adView.showSplashScreenWithTime(showTime: 0)
}else if type == .netImage{
let splashScreenManager = MDSplashScreenManager.sharedManager
if UserDefaults.standard.object(forKey: AdImageName) != nil{
let imageName = UserDefaults.standard.object(forKey: AdImageName) as! String
let filepath = splashScreenManager.getFilePathWithName(name: imageName)
let isExist = splashScreenManager.isFileExistWithFilePath(filePath: filepath)
if isExist{
let adView = MDSplashScreenView.init(type: .netImage)
adView.img = filepath
adView.linkUrl = UserDefaults.standard.object(forKey: AdLinkUrl) as? String
adView.imageValidTime = UserDefaults.standard.object(forKey: AdValidTime) as? String
adView.showSplashScreenWithTime(showTime: 3)
}
}
splashScreenManager.getAdvertisingData(url: "http://img1.126.net/channel6/2016/022471/0805/2.jpg?dpi=6401136", validTime: "03/02/2018 14:25", linkUrl: "https://www.jianshu.com/u/90028000c41d", type: .netImage)
}else if type == .netGif{
let splashScreenManager = MDSplashScreenManager.sharedManager
if UserDefaults.standard.object(forKey: AdGifName) != nil{
let gifName = UserDefaults.standard.object(forKey: AdGifName) as! String
let filepath = splashScreenManager.getFilePathWithName(name: gifName)
let isExist = splashScreenManager.isFileExistWithFilePath(filePath: filepath)
if isExist{
let adView = MDSplashScreenView.init(type: .netGif)
adView.img = filepath
adView.linkUrl = UserDefaults.standard.object(forKey: AdLinkUrl) as? String
adView.imageValidTime = UserDefaults.standard.object(forKey: AdValidTime) as? String
adView.showSplashScreenWithTime(showTime: 3)
}
}
splashScreenManager.getAdvertisingData(url: "http://yun.it7090.com/image/XHLaunchAd/pic05.gif", validTime: "03/02/2018 14:25", linkUrl: "https://www.jianshu.com/u/90028000c41d", type: .netGif)
}else if type == .netVidio{
let splashScreenManager = MDSplashScreenManager.sharedManager
if UserDefaults.standard.object(forKey: AdViedioName) != nil{
let vidioName = UserDefaults.standard.object(forKey: AdViedioName) as! String
let filepath = splashScreenManager.getFilePathWithName(name:vidioName)
let isExist = splashScreenManager.isFileExistWithFilePath(filePath: filepath)
if isExist{
let adView = MDSplashScreenView.init(type: .netVidio)
adView.img = filepath
adView.linkUrl = UserDefaults.standard.object(forKey: AdLinkUrl) as? String
adView.imageValidTime = UserDefaults.standard.object(forKey: AdValidTime) as? String
adView.showSplashScreenWithTime(showTime: 0)
}
}
splashScreenManager.getAdvertisingData(url: "http://yun.it7090.com/video/XHLaunchAd/video03.mp4", validTime: "03/02/2018 14:25", linkUrl: "https://www.jianshu.com/u/90028000c41d", type: .netVidio)
}
MDSplashScreenView
显示广告图
open func showSplashScreenWithTime(showTime:Int){
if type == .localImage{
self.adImageView.image = UIImage.init(named: img!)
}else if type == .localGif{
self.adImageView.loadGif(name: img!)
}else if type == .netImage{
self.adImageView.image = UIImage.init(contentsOfFile: self.img!)
}else if type == .netGif{
let data = try? Data.init(contentsOf: URL.init(fileURLWithPath: self.img!))
if data == nil{
self.dismiss()
}else{
self.adImageView.image = UIImage.gif(data: data!)
}
}else if type == .localVidio{
let filePath = Bundle.main.path(forResource: img!, ofType: "mp4")
let videoURL = URL(fileURLWithPath: filePath!)
let playerItem = AVPlayerItem.init(url: videoURL)
self.videoPlayer?.player = AVPlayer.init(playerItem: playerItem)
self.videoPlayer?.player?.play()
}else if type == .netVidio{
let videoURL = URL(fileURLWithPath: img!)
let playerItem = AVPlayerItem.init(url: videoURL)
self.videoPlayer?.player = AVPlayer.init(playerItem: playerItem)
self.videoPlayer?.player?.play()
}
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MM/dd/yyyy HH:mm"
dateFormatter.string(from: Date())
let timeStampString = self.imageValidTime
if timeStampString == nil{
print("结束时间存储失败")
self.dismiss()
}
let validTimeDate = dateFormatter.date(from: timeStampString!)
var result:ComparisonResult?
result = validTimeDate?.compare(Date())
//将存下来的日期和当前日期相比，如果当前日期小于存下来的时间，则可以显示广告页，反之则不显示
if result == .orderedAscending{
dismiss()
}else{
if showTime != 0{
self.showTime = showTime
countButton.setTitle("跳过\(showTime)", for: .normal)
startTimer()
}else{
countButton.setTitle("跳过", for: .normal)
}
let window = UIApplication.shared.delegate?.window
window??.isHidden = false
window??.addSubview(self)
}
}
获取图片
open func getAdvertisingData(url:String,validTime:String,linkUrl:String,type:MDSplashScreenType){
// 获取名称
let stringArr = url.components(separatedBy: "/")
let name: String? = stringArr.last
// 拼接沙盒路径
let filePath: String = getFilePathWithName(name: name!)
let isExist: Bool = isFileExistWithFilePath(filePath: filePath)
if !isExist {
// 如果该资源不存在，则删除老的，下载新的
if type == .netImage{
downloadAdDataWithUrl(url: url, name: name!, linkUrl: linkUrl, validTime: validTime,key: AdImageName)
}else if type == .netGif{
downloadAdDataWithUrl(url: url, name: name!, linkUrl: linkUrl, validTime: validTime,key: AdGifName)
}else if type == .netVidio{
downloadAdDataWithUrl(url: url, name: name!, linkUrl: linkUrl, validTime: validTime,key: AdViedioName)
}
}
}
异步下载图片
//下载资源到本地
fileprivate func downloadAdDataWithUrl(url:String,name:String,linkUrl:String,validTime:String,key:String){
DispatchQueue.global().async {
let data = try? Data.init(contentsOf: URL(string: url)!)
if data != nil{
let filePath = self.getFilePathWithName(name: name)
let gifData = NSData.init(data: data!)
let isWrite = gifData.write(toFile: filePath, atomically: true)
print(filePath)
if isWrite{
let adImageName:String? = UserDefaults.standard.object(forKey: key) as? String
if name == adImageName{
self.deleteOldCache()
}
UserDefaults.standard.setValue(name, forKey: key)
UserDefaults.standard.setValue(linkUrl, forKey: AdLinkUrl)
UserDefaults.standard.setValue(validTime, forKey: AdValidTime)
UserDefaults.standard.synchronize()
}else{
print("保存失败")
}
}else{
print("Data为空，请检查您的网络或链接")
}
}
}
//点击事件
@objc func toAdVC(){
//点击广告图时，广告图消失，同时像首页发送通知，并把广告页对应的地址传给首页
self.dismiss()
NotificationCenter.default.post(name: NSNotification.Name.init(ToAdVC), object: linkUrl, userInfo: nil)
}
支持 pod
pod 'MDSplashScreen'
有什么问题欢迎提出。
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