Android Open Source - javainstaller Download

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Back to project page javainstaller.

License

The source code is released under:

GNU General Public License

Java Source Code

package julianwi.javainstaller;
/*from www  .  j a v  a2  s. c  o m*/
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.Handler;
import android.widget.ProgressBar;
import android.widget.TextView;

public class Download implements Runnable {
  
  private ProgressBar progress;
  private URL url;
  private Handler handler;
  private String path;
  private TextView tv;
  private Context ctx;
  
  public Download(ProgressBar Progress, TextView tv, URL url, Handler Handler, String destpath, Context c){
    progress = Progress;
    this.url = url;
    handler = Handler;
    path = destpath;
    this.tv = tv;
    ctx = c;
  }

  public void run() {
    InputStream input = null;
        OutputStream output = null;
        URLConnection connection = null;
        HttpURLConnection httpconnection = null;
    try {
            connection = url.openConnection();
            connection.connect();

            if(connection instanceof HttpURLConnection){
              httpconnection = (HttpURLConnection) connection;

              // expect HTTP 200 OK, so we don't mistakenly save error report
              // instead of the file
              if (httpconnection.getResponseCode() != HttpURLConnection.HTTP_OK) {
                final String error = "Server returned HTTP " + httpconnection.getResponseCode() + " " + httpconnection.getResponseMessage();
                handler.post(new Error(new Exception(error), ctx)/*new Runnable() {
            
            @Override
            public void run() {
              new Error("HTTP Error", error);
              
            }
          }*/);
                System.out.println("Server returned HTTP " + httpconnection.getResponseCode()
                          + " " + httpconnection.getResponseMessage());
              }
            }

            // this will be useful to display download percentage
            // might be -1: server did not report the length
            int fileLength = connection.getContentLength();

            // download the file
            input = connection.getInputStream();
            output = new FileOutputStream(path);

            final byte data[] = new byte[1024];
            long total = 0;
            int count;
            while ((count = input.read(data, 0, 1024)) != -1) {
              total += count;
              final int percent = (int) (total * 100 / fileLength);
              final String status = total/1024+"/"+fileLength/1024+"kb  "+percent+"/100%";
              handler.post(new Runnable() {
          @Override
          public void run() {
            progress.setProgress(percent);
            tv.setText(status);
          }
        });
                output.write(data, 0, count);
            }
            input.close();
            output.close();
      //progress.dismiss();
        } catch(Exception e){
          e.printStackTrace();
          handler.post(new Error(e, ctx));
          //progress.dismiss();
          /*final String error = e.getMessage();
          handler.post(new Runnable() {
        
        @Override
        public void run() {
          new Error("Error", error);
          
        }
      });*/
        }
  }
}

Java Source Code List

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