Android Open Source - brainrot Import Async Task

From Project

Back to project page brainrot.

License

The source code is released under:

Apache License

If you think the Android project brainrot listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package jcuenod.brainrot;
//ww  w. j a  v  a2s  . co m
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.util.Log;

public class ImportAsyncTask extends AsyncTask<File, Integer, Integer> {
  protected DBHelper db;
  public static final int DIALOG_IMPORT_PROGRESS = 0;
  private static final String LOG_TAG = "BrainRot ImportAsyncTask";
  private ProgressDialog pd;
  private Activity parentActivity;
  
  public ImportAsyncTask(Activity act)
  {
    super();
    this.parentActivity = act;
    Log.v(LOG_TAG, "preexecute constructed");
  }
  
  @Override
    protected void onPreExecute() {
    super.onPreExecute();

    pd = new ProgressDialog(parentActivity);
        pd.setTitle("Importing Flash Cards");
        pd.setMessage("Please wait...");
        pd.setCancelable(false);
        pd.setIndeterminate(false);
        pd.setMax(0);
        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
    pd.show();
    db = new DBHelper(parentActivity);
    }
  
    @Override
    protected Integer doInBackground(File... file) {
    try {
          try {
          
            BufferedReader br = new BufferedReader(new FileReader(file[0]));
            FlashCard f;
            ArrayList<FlashCard> cards = new ArrayList<FlashCard>();
            ArrayList<String> packs = new ArrayList<String>();
            String line;

            while ((line = br.readLine()) != null)
            {
                String [] flashcarddata = line.split("::"); //structured as "sideone::sidetwo::str_packname"
                f = new FlashCard(0,flashcarddata[0],flashcarddata[1],0,0,0,0);
                cards.add(f);
                packs.add(new String(flashcarddata[2]));
          }
            br.close();
            
            pd.setMax(cards.size());
          for (int i = 0; i < cards.size(); i++)
          {
              db.addCard(cards.get(i), packs.get(i));
            publishProgress(i);
          }
        }
        catch (IOException e) {
            //You'll need to add proper error handling here
          //can't imagine how I'd end up here... and best thing is just to carry on without doing anything
          Log.i(LOG_TAG, "continue_import() failed because of an IOException: " + e.toString());
        }
        } catch (Exception e) {
               // TODO Auto-generated catch block
          Log.v(LOG_TAG, "Error over filereading : " + e.toString());
            e.printStackTrace();
        }
        return 0;
    }

    @Override
    protected void onPostExecute(Integer result) {
      db.close();
      pd.dismiss();
    }
    
    @Override
    protected void onProgressUpdate(Integer... values)
    {
      pd.setProgress(values[0]);
      super.onProgressUpdate(values);
    }
}

Java Source Code List