iOS开发之一句代码检测APP版本的更新-Swift版本
//新建一个NSObject类，将以下代码拷贝到此类中。
class HKVersionManager: NSObject {
init(appleId: String) {
super.init()
// 获取appstore上的最新版本号
let appUrl = URL.init(string: "http://itunes.apple.com/lookup?id=" + appleId)
let appMsg = try? String.init(contentsOf: appUrl!, encoding: .utf8)
let appMsgDict:NSDictionary = getDictFromString(jString: appMsg!)
let appResultsArray:NSArray = (appMsgDict["results"] as? NSArray)!
if appResultsArray.count==0 {
return
}
let appResultsDict:NSDictionary = appResultsArray.lastObject as! NSDictionary
let appStoreVersion:String = appResultsDict["version"] as! String
let appStoreVersion_Float:Float = Float(appStoreVersion)!
// 获取当前手机安装使用的版本号
let localVersion:String = Bundle.main.infoDictionary!["CFBundleShortVersionString"] as! String
let localVersion_Float:Float = Float(localVersion)!
// 用户是否设置不再提示
let userDefaults = UserDefaults.standard
let res = userDefaults.bool(forKey: "NO_ALERt_AGAIN")
// appstore上的版本号大于本地版本号 - 说明有更新
if appStoreVersion_Float != localVersion_Float && !res {
let alertC = UIAlertController.init(title: "版本更新了",
message: "是否前往更新",
preferredStyle: .alert)
let yesAction = UIAlertAction.init(title: "去更新",
style: .default,
handler: { (handler) in
self.updateApp(appId:appleId)
})
let noAction = UIAlertAction.init(title: "下次再说",
style: .cancel,
handler: nil)
let cancelAction = UIAlertAction.init(title: "不再提示",
style: .default,
handler: { (handler) in
self.noAlertAgain()
})
alertC.addAction(yesAction)
alertC.addAction(noAction)
alertC.addAction(cancelAction)
UIApplication.shared.keyWindow?.rootViewController?.present(alertC, animated: true, completion: nil)
}
}
/// 去更新
@available(iOS 10.0, *)
func updateApp(appId:String) {
let updateUrl:URL = URL.init(string: "http://itunes.apple.com/app/id" + appId)!
if #available(iOS 10.0, *) {
UIApplication.shared.open(updateUrl, options: [:], completionHandler: nil)
} else {
// Fallback on earlier versions
}
}
/// 不再提示
func noAlertAgain() {
let userDefaults = UserDefaults.standard
userDefaults.set(true, forKey: "NO_ALERt_AGAIN")
userDefaults.synchronize()
}
/// JSONString转字典
func getDictFromString(jString:String) -> NSDictionary {
let jsonData:Data = jString.data(using: .utf8)!
let dict = try? JSONSerialization.jsonObject(with: jsonData, options: .mutableContainers)
if dict != nil {
return dict as! NSDictionary
}
return NSDictionary()
}
}
在需要检测的类中调用一句代码即可
//版本检测
_ = HKCheckVersionManager.init(appId: "你的apple id")
