Swift 检查版本更新 itunes

iOS 想要检查 App 当前版本是否为最新，一般的方案大概都是服务器自己提供一个接口来获取 App 最新版本是多少，然后再做出相应提示是否需要更新，但是接口需要手动维护，应用要审核，还得等审核通过以后才能更新版本号，其实苹果提供了一个 iTunes 接口，能够查到 App 在 AppStore 上的状态信息，既省事又准确，下面记录一下具体实现方法

返回的数据结构:

{"resultCount":1,"results":[{"screenshotUrls":Array[5],"ipadScreenshotUrls":Array[0],"appletvScreenshotUrls":Array[0],"artworkUrl60":"XXXXX","artworkUrl512":"XXXXX","artworkUrl100":"XXXXX","artistViewUrl":"XXXXX","supportedDevices":Array[49],"isGameCenterEnabled":false,"kind":"software","features":Array[0],"advisories":Array[0],"trackCensoredName":"XXXXX","languageCodesISO2A":Array[1],"fileSizeBytes":"XXXXX","contentAdvisoryRating":"4+","trackViewUrl":"XXXXX",     //下载地址"trackContentRating":"4+","releaseNotes":"1.XXXXX。
2.XXXXX！
3.XXXXX!","isVppDeviceBasedLicensingEnabled":true,"primaryGenreId":XXXXX,"genreIds":Array[2],"trackId":XXXXX,"trackName":"XXXXX","sellerName":"XXXXX","primaryGenreName":"XXXXX","currency":"CNY","wrapperType":"software","version":"2.5.1",          //线上版本号"description":"XXXXX","artistId":"XXXXX","artistName":"XXXXX","genres":Array[2],"price":0,"bundleId":"XXXXX","releaseDate":"XXXXX","minimumOsVersion":"XXXXX","currentVersionReleaseDate":"2018-09-12T10:33:48Z","formattedPrice":"免费"}]
}

        //本地版本信息let infoDict:Dictionary = Bundle.main.infoDictionary!let app_Version:String = infoDict["CFBundleShortVersionString"] as! Stringlet url = URL(string: "http://itunes.apple.com/cn/lookup?id=XXX")SVProgressHUD.show()NetworkTools.shared._manger.request(url!, method: .post, parameters: nil, encoding: JSONEncoding.default, headers: nil).validate().responseJSON { [weak self](response) inguard let strongSelf = self else { return }switch(response.result) {case .success(let value):SVProgressHUD.dismiss()print(value)guard let resultDict = value as? [String : Any], resultDict.keys.count > 0 else {print("无数据:\(value)")return}let tempArr = resultDict["results"] as? [[String: Any]]if let resultsArr = tempArr {if resultsArr.count < 1 {print("此APPID为未上架的APP或者查询不到")return}let itunesVersion = resultsArr.first!["version"] as! String//trackViewUrl 为更新地址let trackViewUrl = resultsArr.first!["trackViewUrl"] as! Stringif strongSelf.compareVersion(str1: app_Version, str2: itunesVersion) {var alertController = UIAlertController()alertController = UIAlertController(title: "版本更新", message: "请下载最新版App否则无法使用！", preferredStyle: .alert)let certainAction = UIAlertAction(title: "确定", style: .default) { (action) inlet url = URL(string: trackViewUrl)UIApplication.shared.openURL(url!)}alertController.addAction(certainAction)strongSelf.present(alertController, animated: true, completion: nil)}else {var alertController = UIAlertController()alertController = UIAlertController(title: "版本更新", message: "已是最新版本！", preferredStyle: .alert)let cancelAction = UIAlertAction(title: "确定", style: .cancel, handler: nil)alertController.addAction(cancelAction)strongSelf.present(alertController, animated: true, completion: nil)}}case .failure(_):SVProgressHUD.dismiss()SVProgressHUD.showError(withStatus: "检查更新失败!")}}

版本字符串的比较方法

iOS 优雅的比较版本号

//版本号比较private func compareVersion(str1: String, str2: String) -> Bool {let compareResult = str1.compare(str2, options: .numeric, range: nil, locale: nil)return (compareResult == .orderedAscending)}

也可以写成扩展

extension String
{func ck_compare(with version: String) -> ComparisonResult {return compare(version, options: .numeric, range: nil, locale: nil)}func isNewer(than aVersionString: String) -> Bool {return ck_compare(with: aVersionString) == .orderedDescending}func isOlder(than aVersionString: String) -> Bool {return ck_compare(with: aVersionString) == .orderedAscending}func isSame(to aVersionString: String) -> Bool {return ck_compare(with: aVersionString) == .orderedSame}
}作者：Cocody
链接：https://www.jianshu.com/p/22d37844df2d
來源：简书
简书著作权归作者所有，任何形式的转载都请联系作者获得授权并注明出处。

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Swift 检查版本更新 itunes

返回的数据结构:

版本字符串的比较方法

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