使用新的API替换getNetworkSuggestions()方法，即使用NetworkRequest.Builder()和registerNetworkCallback()方法。以下是示例代码：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
    WifiNetworkSpecifier specifier = new WifiNetworkSpecifier.Builder()
        .setSsid("wifi_ssid")
        .setWpa2Passphrase("password")
        .build();

    NetworkRequest request = new NetworkRequest.Builder()
        .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
        .removeCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
        .setNetworkSpecifier(specifier)
        .build();

    ConnectivityManager connectivityManager = (ConnectivityManager)
        getSystemService(Context.CONNECTIVITY_SERVICE);

    ConnectivityManager.NetworkCallback networkCallback = new ConnectivityManager.NetworkCallback() {
        @Override
        public void onAvailable(Network network) {
            // do something when network is available
        }

        @Override
        public void onLost(Network network) {
            // do something when network is lost
        }
    };

    connectivityManager.registerNetworkCallback(request, networkCallback);
}

在这个示例中，我们使用了WifiNetworkSpecifier.Builder()来指定WiFi网络的名称和密码，并使用NetworkRequest.Builder()创建了一个网络请求对象。我们还使用了ConnectivityManager.registerNetworkCallback()方法来注册网络回调。这种方法适用于Android 10及以上的版本。