手机不能解析dns

// 设置DNS服务器
InetAddress[] dnsServers = {InetAddress.getByName("8.8.8.8"), InetAddress.getByName("8.8.4.4")};
NetworkRequest.Builder builder = new NetworkRequest.Builder();
builder.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET);
builder.addTransportType(NetworkCapabilities.TRANSPORT_WIFI);

ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
connectivityManager.registerNetworkCallback(builder.build(), new ConnectivityManager.NetworkCallback() {
    @Override
    public void onAvailable(Network network) {
        super.onAvailable(network);
        LinkProperties linkProperties = connectivityManager.getLinkProperties(network);
        if (linkProperties != null) {
            for (InetAddress dns : dnsServers) {
                linkProperties.setDnsServers(Collections.singletonList(dns));
            }
            connectivityManager.updateLinkProperties(network, linkProperties);
        }
    }
});