iOS版本更新：调接口

后台返回三种状态  1.强制更新  2.无需更新 3.用户选择是否更新

- (void)requestToCheckVersion

{

    ELifeNetRequestData *req = [[ELifeNetRequestData alloc] init];

    [req setString:MFAppVersionShort forKey:@"versionNo"];

    [req setString:@"iphone" forKey:@"osName"];

    

    [[ELifeNetAPIClient sharedClient] requestPostWithType:ELifeRequest_getVersion args: [req toDictionary]

    success:^(id responseObject) {

 

        int forceUpgrade = [[responseObject objectForKey:@"forceUpgrade"] intValue];

        self.updateUrl = [responseObject objectForKey:@"upgradeUrl"];

        

        if (forceUpgrade == 1) {

            //强制更新

            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:self.updateUrl]];

            return ;

        }else if (forceUpgrade == 2){

            //无需更新

            return;

        }else if (forceUpgrade == 3){

            //用户选择是否更新 alert

            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"" message:@"有新版本，现在去更新吗？" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];

            alert.tag = 1012;

            [alert show];

        }

        

    } failure:^(NSError *error) {

        

    }];

}