APP升级，获取AppStore版本号和本地版本号--Swift

- 日理万妓 2022-09-25 10:24 337阅读 0赞

private func checkUpdate() {
            let path = NSString(format: "http://itunes.apple.com/cn/lookup?id=%@", AppConfig.appStoreID) as String
            let url = NSURL(string: path)
            let request = NSMutableURLRequest(URL: url!, cachePolicy: NSURLRequestCachePolicy.ReloadIgnoringLocalAndRemoteCacheData, timeoutInterval: 10.0)
            request.HTTPMethod = "POST"
            
            NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue()) { (response, data, error) in
                let receiveStatusDic = NSMutableDictionary()
                if data != nil {
                    do {
                        let dic = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers)
                        if let resultCount = dic["resultCount"] as? NSNumber {
                            if resultCount.integerValue > 0 {
                                receiveStatusDic.setValue("1", forKey: "status")
                                if let arr = dic["results"] as? NSArray {
                                    if let dict = arr.firstObject as? NSDictionary {
                                        if let version = dict["version"] as? String {
                                            receiveStatusDic.setValue(version, forKey: "version")
                                            NSUserDefaults.standardUserDefaults().setObject(version, forKey: "Version")
                                            NSUserDefaults.standardUserDefaults().synchronize()
                                        }
                                    }
                                }
                            }
                        }
                    }catch let error {
                        log.debug("checkUpdate -------- \(error)")
                        receiveStatusDic.setValue("0", forKey: "status")
                    }
                }else {
                    receiveStatusDic.setValue("0", forKey: "status")
                }
                self.performSelectorOnMainThread(#selector(AppDelegateSplash.checkUpdateWithData(_:)), withObject: receiveStatusDic, waitUntilDone: false)
            }
        }
        
        @objc private func checkUpdateWithData(data: NSDictionary) {
            let status = data["status"] as? String
            let localVersion = NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleShortVersionString") as! String
            if status == "1" {
                let storeVersion = data["version"] as! String
                self.compareVersion(localVersion, storeVersion: storeVersion)
                return
            }
            if let storeVersion = NSUserDefaults.standardUserDefaults().objectForKey("Version") as? String {
                self.compareVersion(localVersion, storeVersion: storeVersion)
            }
        }
        
        private func compareVersion(localVersion: String, storeVersion: String) {
            if localVersion.compare(storeVersion) == NSComparisonResult.OrderedAscending {
                //做你想做的事情
            }
        }

**注意，从APPStore获取信息不是每次都能获取成功的，所以需要在本地做个缓存，只要有一次成功就记住版本号**