Android Open Source - SmartNavi Map Download

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Back to project page SmartNavi.

License

The source code is released under:

Apache License

Java Source Code

/**
 * //  w  ww  .j  av a2 s .  co  m
 */
package com.ilm.sandwich.helferklassen;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import android.os.AsyncTask;
import android.os.Environment;
import android.util.Log;

/**
 * @author Christian
 * 
 */
public class MapDownload extends AsyncTask<String, String, String> {

  private String[] server = new String[4];
  private String randomServer;

  /**
   * @param args
   */
  public void initialize(double lat, double lon, int zoom, boolean closeup) {
    server[0] = "http://otile1.mqcdn.com/tiles/1.0.0/map/";
    server[1] = "http://otile2.mqcdn.com/tiles/1.0.0/map/";
    server[2] = "http://otile3.mqcdn.com/tiles/1.0.0/map/";
    server[3] = "http://otile4.mqcdn.com/tiles/1.0.0/map/";
    int random = (int) (Math.random() * 3);
    randomServer = server[random];
    Log.d("egal", "Nehme Server Nr: " + random);
  }

  @Override
  protected String doInBackground(String... params) {
    try {
      String urlStr = randomServer + 5 + "/" + 16 + "/" + 10 + ".jpg";      //     z     y    x
      URL url = new URL(urlStr);
      HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
      InputStream in = new BufferedInputStream(urlConnection.getInputStream());
      File newFileDir = new File(Environment.getExternalStorageDirectory().toString() + "/osmdroid/tiles/MapquestOSM/" + 5 + "/" + 16);
      newFileDir.mkdirs();
      File newFile = new File(newFileDir, 10 + ".jpg.tile");
      OutputStream output = new FileOutputStream(newFile);
      int read;
      while ((read = in.read()) != -1) {
        output.write(read);
        output.flush();
      }
      output.close();
      urlConnection.disconnect();
    } catch (Exception e) {
      Log.e("egal", e.getMessage());
      e.printStackTrace();
    }
    return null;
  }
}

Java Source Code List

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