از wampserver نمیتونم دانلود کنم ( حل شد )

 import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;


public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final Button btn1 = (Button) findViewById(R.id.btn1);
        final TextView txt1 = (TextView) findViewById(R.id.txt1);
        final ProgressBar prgdownload = (ProgressBar) findViewById(R.id.prgdownload);
        btn1.setOnClickListener(new View.OnClickListener() {
            OnProgressDownloadListener listener = new OnProgressDownloadListener() {
private String convertByteToMB (int byteLength){
    float sizeInkb = (float)byteLength/1024;
    float sizeInMB = (float)sizeInkb/1024;
    return String.format("%.1MB",sizeInMB);
}
                @Override
                public void onProgressDownload(int percent,int downloadedSize,int fileSize) {

                    prgdownload.setProgress(percent);
                    txt1.setText(percent + "%"+convertByteToMB(downloadedSize)+convertByteToMB(fileSize));
                    if (percent>=100){
                        txt1.setText("Download Complete");
                    }
                }
            };
            @Override
            public void onClick(View v) {
                FileDownloader.download("http://192.168.200.1/file-server/music.mp3", G.DIR_APP + "/sample-music.mp3",listener);
            }
        });

    }
}

 //method File Downloader

import android.util.Log;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class FileDownloader {

    public static void download(final String downloadpath, final String filepath, final OnProgressDownloadListener listener){
        Thread thread =new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    URL url = new URL(downloadpath);
                    HttpURLConnection connection =(HttpURLConnection) url.openConnection();
                    connection.setRequestMethod("GET");
                    connection.setDoOutput(true);
                    connection.connect();
                    final int fileSize =connection.getContentLength();
                    File file = new File(filepath);
                    if (file.exists()){
                        file.delete();
                    }
                    FileOutputStream outputStream =new FileOutputStream(filepath);
                    InputStream inputStream = connection.getInputStream();
                    byte[] buffer = new byte[G.DOWNLOAD_BUFFER_SIZE];
                    int len = 0;
                    int downloadedSize =0;
                    while((len = inputStream.read(buffer))>0){
                        outputStream.write(buffer,0,len);
                        downloadedSize += len;
                        final float downloadPercent = 100.0f*(float)downloadedSize / (float)fileSize;
                        Log.i("LOG", "Percent :" + downloadPercent);
                        if (listener !=null){
                            final int finalDownloadedSize =downloadedSize;
                            G.HANDLER.post(new Runnable() {
                                @Override
                                public void run() {
                                    listener.onProgressDownload((int) downloadPercent,finalDownloadedSize,fileSize);
                                }
                            });

                        }
                    }

                    outputStream.close();
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        });
        thread.start();
    }
}