-(void)checkVersion
{
//每天进行一次版本判断
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy-MM-dd"];
//获取年-月-日
NSString *dateString = [formatter stringFromDate:[NSDate date]];
NSString *currentDate = [[NSUserDefaults standardUserDefaults] objectForKey:@"currentDate"];
if ([currentDate isEqualToString:dateString]) {
return;
}
[[NSUserDefaults standardUserDefaults] setObject:dateString forKey:@"currentDate"];
NSString *newVersion;
NSURL *url = [NSURL URLWithString:@"http://itunes.apple.com/cn/lookup?id=1139094792"];//这个URL地址是该app在iTunes connect里面的相关配置信息。其中id是该app在app store唯一的ID编号。
NSString *jsonResponseString = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];
NSLog(@"通过appStore获取的数据信息：%@",jsonResponseString);
NSData *data = [jsonResponseString dataUsingEncoding:NSUTF8StringEncoding];
// 解析json数据
id json = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSArray *array = json[@"results"];
for (NSDictionary *dic in array) {
newVersion = [dic valueForKey:@"version"];
}
NSLog(@"通过appStore获取的版本号是：%@",newVersion);
//获取本地软件的版本号
NSString *localVersion = [[[NSBundle mainBundle]infoDictionary] objectForKey:@"CFBundleVersion"];
NSString *msg = [NSString stringWithFormat:@"您的App不是最新版本，请问是否更新"];
//对比发现的新版本和本地的版本
if ([newVersion floatValue] > [localVersion floatValue])
{
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"更新提示"message:msg preferredStyle:UIAlertControllerStyleAlert];
[self presentViewController:alert animated:YES completion:nil];
[alert addAction:[UIAlertAction actionWithTitle:@"现在更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"https://itunes.apple.com/cn/app/yi-ka-tongbic-ban/id1139094792?l=en&mt=8"]];
//这里写的URL地址是该app在app store里面的下载链接地址，其中ID是该app在app store对应的唯一的ID编号。
NSLog(@"点击现在升级按钮");
}]];
[alert addAction:[UIAlertAction actionWithTitle:@"下次再说" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"点击下次再说按钮");
}]];
}
}
