手机改域名提高wi-fi

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 {
    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) {
                NetworkRequest.Builder builder = new NetworkRequest.Builder();
                connectivityManager.registerNetworkCallback(builder.build(), new ConnectivityManager.NetworkCallback() {
                    @Override
                    public void onAvailable(Network network) {
                        super.onAvailable(network);
                        try {
                            NetworkCapabilities capabilities = connectivityManager.getNetworkCapabilities(network);
                            if (capabilities != null && capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
                                // 修改DNS设置
                                Log.d("DnsChanger", "Setting DNS to: " + dnsServer);
                                // 这里需要使用反射或其他方法来修改DNS设置，具体实现取决于设备和Android版本
                            }
                        } catch (Exception e) {
                            Log.e("DnsChanger", "Failed to set DNS", e);
                        }
                    }
                });
            } else {
                Log.e("DnsChanger", "API level not supported");
            }
        }
    }
}