iOS NETunnelProviderManager保存多个配置

Question

我正在尝试将我的VPN配置保存到已经有效的首选项(我可以连接到我的VPN).但由于某些原因,每次我再次运行代码而不是使用最后一个配置时,它会创建一个新的代码.所以,我最终得到了一堆配置.

这是我目前的代码,如果有人能让我知道它出了什么问题会很棒.谢谢!

// Initialize Manager
NETunnelProviderManager *manager = [[NETunnelProviderManager alloc] init];

[manager loadFromPreferencesWithCompletionHandler:^(NSError *error) {
    if (error) {
        NSLog(@"Load Error: %@", error.description);
    } else {

        // Create the protocol object
        NETunnelProviderProtocol *protocol = [[NETunnelProviderProtocol alloc] init]; // Create the protocol object

        // Configure the protocol object
        protocol.providerBundleIdentifier = @"com.nfisc.testvpn.ptp";                 // Bundle ID of tunnel provider
        protocol.providerConfiguration = @{};                                         // Currently blank, but will be used later
        protocol.serverAddress = @"0.0.0.0";                                          // Ommited for security reasons
        protocol.username = @"username";                                              // The username for the configuration
        protocol.identityDataPassword = @"password";                                  // The password for the configuration
        protocol.disconnectOnSleep = NO;

        // Configure the manager with the protocol
        manager.protocolConfiguration = protocol;
        manager.enabled = true;

        [manager saveToPreferencesWithCompletionHandler:^(NSError *error) {
            if (error) {
                NSLog(@"Save Error: %@", error.description);
            } else {
                if ([[manager connection] status] != NEVPNStatusConnected) {
                    NSLog(@"Starting VPN");
                    [self start:manager];
                } else {
                    NSLog(@"VPN Already Connected");
                    [_statusLabel setText:@"Connected"];
                    [_statusLabel setTextColor:[UIColor greenColor]];
                }

            }
        }];
    }
}];

Answer 1

请改用+ (void)loadAllFromPreferencesWithCompletionHandler:(void (^)(NSArray<NEAppProxyProviderManager *> *managers, NSError *error))completionHandlerAPI.

仅当块中的managers.count == 0时才创建新协议.

[NETunnelProviderManager loadAllFromPreferencesWithCompletionHandler:^(NSArray<NETunnelProviderManager *> * _Nullable managers, NSError * _Nullable error) {
    if (error) {
        NSLog(@"Load Error: %@", error.description);
    }

    NETunnelProviderManager *manager;
    if (managers.count > 0) {
        manager = managers[0];
    }else {
        manager = [[NETunnelProviderManager alloc] init];
        manager.protocolConfiguration = [[NETunnelProviderProtocol alloc] init];
    }

//... your code here...
}];