IOS判断app在appstore是否有可用的更新
iTunes可以提供app的版本信息,主要通过appid获取,如 http://itunes.apple.com/lookup?id=946449501,使用时只需要到iTunes查找自己的appid,修改成自己的appid即可
使用HTTP模式读取此链接可以获取app信息的json字符串
贴出部分代码
-(void)checkVersion { ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:strURL]];//strURL为你的appid地址 [request setRequestMethod:@"POST"]; [request setDelegate:self]; [request startAsynchronous]; } -(void)requestFinished:(ASIHTTPRequest *)request { NSString *recStr = [[NSString alloc] initWithData:request.responseData encoding:NSUTF8StringEncoding]; recStr = [recStr stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];//返回的字符串有前面有很多换行符,需要去除一下 NSDictionary *resultDic = [JSONHelper DeserializerDictionary:recStr];//jsonhelper是我封装的json解析类,你可以使用自己方式解析 NSArray *infoArray = [resultDic objectForKey:@"results"]; if (infoArray.count > 0) { NSDictionary* releaseInfo =[infoArray objectAtIndex:0]; NSString* appStoreVersion = [releaseInfo objectForKey:@"version"]; NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary]; NSString *currentVersion = [infoDic objectForKey:@"CFBundleShortVersionString"]; NSArray *curVerArr = [currentVersion componentsSeparatedByString:@"."]; NSArray *appstoreVerArr = [appStoreVersion componentsSeparatedByString:@"."]; BOOL needUpdate = NO; //比较版本号大小 int maxv = (int)MAX(curVerArr.count, appstoreVerArr.count); int cver = 0; int aver = 0; for (int i = 0; i < maxv; i++) { if (appstoreVerArr.count > i) { aver = [NSString stringWithFormat:@"%@",appstoreVerArr[i]].intValue; } else{ aver = 0; } if (curVerArr.count > i) { cver = [NSString stringWithFormat:@"%@",curVerArr[i]].intValue; } else{ cver = 0; } if (aver > cver) { needUpdate = YES; break; } } //如果有可用的更新 if (needUpdate){ trackViewURL = [[NSString alloc] initWithString:[releaseInfo objectForKey:@"trackViewUrl"]];//trackViewURL临时变量存储app下载地址,可以让app跳转到appstore UIAlertView* alertview =[[UIAlertView alloc] initWithTitle:@"版本升级" message:[NSString stringWithFormat:@"发现有新版本,是否升级?"] delegate:self cancelButtonTitle:@"暂不升级" otherButtonTitles:@"马上升级", nil]; [alertview show]; } } } - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex == 1){ UIApplication *application = [UIApplication sharedApplication]; [application openURL:[NSURL URLWithString:trackViewURL]]; } }