如果我们要检测app版本的更新,那么我们必须获取当前运行app版本的版本信息和AppStore 上发布的最新版本的信息。
当前运行版本信息可以通过info.plist文件中的bundle version中获取:
NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary]; CFShow(infoDic); NSString *appVersion = [infoDic objectForKey:@"CFBundleVersion"];
这样就获取到当前运行的app的版本了
要获取当前app store上的最新的版本,有两种方法,
一、在某特定的服务器上,发布和存储app最新的版本信息,需要的时候向该服务器请求查询。
二、从app store上查询,可以获取到app的作者,连接,版本等。官方相关文档
www.apple.com/itunes/affiliates/resources/documentation/itunes-store-web-service-search-api.htm
具体步骤如下:
1,用 POST 方式发送请求:
http://itunes.apple.com/search?term=你的应用程序名称&entity=software
更加精准的做法是根据 app 的 id 来查找:
http://itunes.apple.com/lookup?id=你的应用程序的ID
#define APP_URL http://itunes.apple.com/lookup?id=你的应用程序的ID
你的应用程序的ID 是 itunes connect里的 Apple ID
2,从获得的 response 数据中解析需要的数据。因为从 appstore 查询得到的信息是 JSON 格式的,所以需要经过解析。解析之后得到的原始数据就是如下这个样子的:
{ resultCount = 1; results = ( { artistId = 开发者 ID; artistName = 开发者名称; price = 0; isGameCenterEnabled = 0; kind = software; languageCodesISO2A = ( EN ); trackCensoredName = 审查名称; trackContentRating = 评级; trackId = 应用程序 ID; trackName = 应用程序名称"; trackViewUrl = 应用程序介绍网址; userRatingCount = 用户评级; userRatingCountForCurrentVersion = 1; version = 版本号; wrapperType = software; } ); }
NSDictionary *jsonData = [dataPayload JSONValue]; NSArray *infoArray = [jsonData objectForKey:@"results"]; NSDictionary *releaseInfo = [infoArray objectAtIndex:0]; NSString *latestVersion = [releaseInfo objectForKey:@"version"]; NSString *trackViewUrl = [releaseInfo objectForKey:@"trackViewUrl"];
UIApplication *application = [UIApplication sharedApplication]; [application openURL:[NSURL URLWithString:trackViewUrl]];
代码如下:
-(void)onCheckVersion { NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary]; //CFShow((__bridge CFTypeRef)(infoDic)); NSString *currentVersion = [infoDic objectForKey:@"CFBundleVersion"]; NSString *URL = @"http://itunes.apple.com/lookup?id=你的应用程序的ID"; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; [request setURL:[NSURL URLWithString:URL]]; [request setHTTPMethod:@"POST"]; NSHTTPURLResponse *urlResponse = nil; NSError *error = nil; NSData *recervedData = [NSURLConnection sendSynchronousRequest:requestreturningResponse:&urlResponse error:&error]; NSString *results = [[NSString alloc] initWithBytes:[recervedData bytes] length:[recervedData length] encoding:NSUTF8StringEncoding]; NSDictionary *dic = [results JSONValue]; NSArray *infoArray = [dic objectForKey:@"results"]; if ([infoArray count]) { NSDictionary *releaseInfo = [infoArray objectAtIndex:0]; NSString *lastVersion = [releaseInfo objectForKey:@"version"]; if (![lastVersion isEqualToString:currentVersion]) { //trackViewURL = [releaseInfo objectForKey:@"trackVireUrl"]; UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"更新" message:@"有新的版本更新,是否前往更新?" delegate:self cancelButtonTitle:@"关闭" otherButtonTitles:@"更新",nil]; alert.tag = 10000; [alert show]; } else { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"更新" message:@"此版本为最新版本" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil]; alert.tag = 10001; [alert show]; } } } - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (alertView.tag==10000) { if (buttonIndex==1) { NSURL *url = [NSURL URLWithString:@"https://itunes.apple.com"]; [[UIApplication sharedApplication]openURL:url]; } } }