- (void)versionUpdate{ //获得当前发布的版本 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ //耗时的操作－－获取某个应用在AppStore上的信息,更改id就行 __weak LoginViewController *weakSelf = self; NSString *string = [NSString stringWithContentsOfURL:[NSURL URLWithString:@"http://itunes.apple.com/cn/lookup?id=1108288793"] encoding:NSUTF8StringEncoding error:nil]; NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding]; NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil]; NSString *version = [[[dic objectForKey:@"results"]firstObject]objectForKey:@"version"]; NSString *updateInfo = [[[dic objectForKey:@"results"]firstObject]objectForKey:@"releaseNotes"]; //NSString *updateURL = [[[dic valueForKey:@"results"] firstObject] objectForKey:@""]; //获得当前版本 NSString *currentVersion = [[[NSBundle mainBundle]infoDictionary]objectForKey:@"CFBundleShortVersionString"]; dispatch_async(dispatch_get_main_queue(), ^{ //更新界面 if ( version &&![version isEqualToString:currentVersion]) { //有新版本 NSString *message = [NSString stringWithFormat:@"有新版本发布啦! %@",updateInfo]; UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"温馨提示" message:message preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *action1 = [UIAlertAction actionWithTitle:@"忽略" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) { }]; UIAlertAction *action2 = [UIAlertAction actionWithTitle:@"前往更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) { NSString *url = @"https://itunes.apple.com/cn/app/rich-products/id1108288793?mt=8&uo=4"; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]]; }]; [alertController addAction:action1]; [alertController addAction:action2]; [weakSelf presentViewController:alertController animated:YES completion:nil]; }else{ //已是最高版本 NSLog(@"已是最高版本"); } }); }); }
记得http://itunes.apple.com/cn/lookup?id=1108288793，这中间的这个CN不能掉了，不然返回的JSON数组为空。