手机改域名提高网速

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.net.NetworkRequest;
import android.os.Build;
import android.util.Log;

public class DnsChanger {
    private static final String TAG = "DnsChanger";

    public static void setDns(Context context, String dnsServer) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        if (connectivityManager != null) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                connectivityManager.registerNetworkCallback(new NetworkRequest.Builder()
                        .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
                        .build(), new ConnectivityManager.NetworkCallback() {
                    @Override
                    public void onAvailable(Network network) {
                        super.onAvailable(network);
                        Log.d(TAG, "Network available: " + network);
                        // 设置DNS服务器
                        setDnsOnNetwork(network, dnsServer);
                    }
                });
            } else {
                Log.e(TAG, "API level not supported");
            }
        }
    }

    private static void setDnsOnNetwork(Network network, String dnsServer) {
        try {
            java.net.InetAddress[] addresses = java.net.InetAddress.getAllByName(dnsServer);
            for (java.net.InetAddress address : addresses) {
                Log.d(TAG, "Setting DNS: " + address.getHostAddress());
                // 这里需要使用反射或其他方法来设置DNS服务器
            }
        } catch (Exception e) {
            Log.e(TAG, "Failed to set DNS", e);
        }
    }
}