Android Open Source - OpenHSK Main Activity

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License

The source code is released under:

This work is licensed under a Creative Commons Attribution 3.0 Unported License. Original author of word lists: http://lingomi.com/ Original author of definitions: http://cc-cedict.org Original autho...

Java Source Code

package edu.openhsk;
//from ww w.  j  a  v  a 2s  . c om
import static edu.openhsk.repository.DatabaseMetadata.ALL_WORD_LIST_IDS;
import static edu.openhsk.repository.DatabaseMetadata.WORD_LIST_ID_CL;
import static edu.openhsk.utils.CSVParser.COMMA_DELIMITER;
import static edu.openhsk.utils.CSVParser.SEMICOLON_DELIMITER;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Random;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.Toast;
import edu.openhsk.repository.DatabaseHelper;
import edu.openhsk.utils.CSVParser;

public class MainActivity extends Activity {
    private static final String LOG_TAG = MainActivity.class.getSimpleName();
  private DatabaseHelper dbh;
  
  private static final Integer[] ALL_DICT_FILE_RES_IDS = { R.string.filename_hsk1,
      R.string.filename_hsk2, R.string.filename_su1,
      R.string.filename_su2, R.string.filename_su2_long,
      R.string.filename_classf };
  
  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        dbh = new DatabaseHelper(this);
        
        Integer[] wordListsToBeUpdated = dbh.doWordListHealthCheck();
    if (wordListsToBeUpdated.length == 0) {
      Log.d(LOG_TAG, "No data needed to be loaded");
      LinearLayout foreground = (LinearLayout) findViewById(R.id.main_menu_layout);
      foreground.setVisibility(View.VISIBLE);
    } else {
      new AsyncParser().execute(wordListsToBeUpdated);
    }
        
        Button listButton = (Button) findViewById(R.id.listButton);
        listButton.setOnClickListener(new OnClickListener() {
      public void onClick(View v) {
        Intent intent = new Intent(MainActivity.this, WordListSelectionActivity.class);
        intent.putExtra(WordListSelectionActivity.WORD_LIST_SELECTION_MODE_EXTRA, 
            WordListSelectionActivity.LIST_MODE);
        startActivity(intent);
      }
    });
        
        Button charButton = (Button) findViewById(R.id.charButton);
        charButton.setOnClickListener(new OnClickListener() {
      public void onClick(View v) {
        Intent i = new Intent(MainActivity.this, CharacterViewActivity.class);
        Random rand = new Random();
        i.putExtra("edu.openhsk.randomindex", rand.nextInt(151)+1);
        startActivity(i);
      }
    });
        
        Button quizButton = (Button) findViewById(R.id.quizButton);
        quizButton.setOnClickListener(new OnClickListener() {
      public void onClick(View v) {
        Intent intent = new Intent(MainActivity.this, WordListSelectionActivity.class);
        intent.putExtra(WordListSelectionActivity.WORD_LIST_SELECTION_MODE_EXTRA, 
            WordListSelectionActivity.QUIZ_MODE);
        startActivity(intent);
      }
    });
        
        Button examButton = (Button) findViewById(R.id.examButton);
        examButton.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        Intent intent = new Intent(MainActivity.this, WordListSelectionActivity.class);
        intent.putExtra(WordListSelectionActivity.WORD_LIST_SELECTION_MODE_EXTRA, 
            WordListSelectionActivity.EXAM_MODE);
        startActivity(intent);
      }
    });
    }

  public void parseDictionaryFiles(Integer[] indexesToUpdate) {
        try {  
      CSVParser parser = new CSVParser(dbh);
          BufferedReader br;
      
          long startTime = System.currentTimeMillis();
      for (int i = 0; i < indexesToUpdate.length; i++) {
        br = new BufferedReader(new InputStreamReader(this.getAssets()
            .open(getString(ALL_DICT_FILE_RES_IDS[indexesToUpdate[i]])), "UTF8"));
        parser.parseWordListCSV(br, ALL_WORD_LIST_IDS[indexesToUpdate[i]], 
            ALL_WORD_LIST_IDS[indexesToUpdate[i]] == WORD_LIST_ID_CL ? SEMICOLON_DELIMITER : COMMA_DELIMITER);
      }
      long endTime = System.currentTimeMillis() - startTime;
      Log.d(LOG_TAG, "Parsing and storing took " + endTime + " ms");
    } catch (IOException e) {
      Toast.makeText(this, R.string.fatal_parser_error, Toast.LENGTH_LONG).show();
      e.printStackTrace();
    }
  }
  
  private class AsyncParser extends AsyncTask<Integer,Integer,Boolean> {
    private final ProgressDialog dialog;
    
    public AsyncParser() {
      dialog = new ProgressDialog(MainActivity.this);
    }
    
    @Override
    protected void onPreExecute() {
      this.dialog.setMessage(MainActivity.this.getText(R.string.installing_msg));
      this.dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
      this.dialog.show();
    }
    
    @Override
    protected Boolean doInBackground(Integer... params) {
      if (params.length != 0) {
        parseDictionaryFiles(params);
      }
      return true;
    }
    
    @Override
    protected void onPostExecute(Boolean result) {
      if (dialog.isShowing()) {
              dialog.dismiss();
          }
      
      LinearLayout foreground = (LinearLayout) findViewById(R.id.main_menu_layout);
      foreground.setVisibility(View.VISIBLE);
    }
  }
}

Java Source Code List

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