Android Open Source - irma_android_verifier Stats Activity

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Back to project page irma_android_verifier.
License

The source code is released under:
GNU General Public License
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Java Source Code

package org.irmacard.androidverifier;
/*from  w w  w . j  a v a  2s .  c o m*/
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;

import android.app.Activity;
import android.database.DatabaseUtils;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.app.NavUtils;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.widget.TextView;
import android.widget.Toast;

public class StatsActivity extends Activity implements OnClickListener {

    private String DBPath;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_stats);
        getActionBar().setDisplayHomeAsUpEnabled(true);
        
        DBPath = getBaseContext().getFilesDir().getPath().replaceFirst("/data", "").replace("files", "databases/verifications.db");
        // Prevent the screen from turning off
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
        
        findViewById(R.id.button2).setOnClickListener(this);
        TextView sCount = (TextView) findViewById(R.id.stat_successcount);
        TextView fCount = (TextView) findViewById(R.id.stat_failcount);
        TextView eCount = (TextView) findViewById(R.id.stat_errorcount);
        TextView tCount = (TextView) findViewById(R.id.stat_totalcount);
        TextView sPerc = (TextView) findViewById(R.id.stat_successpercentage);
        TextView fPerc = (TextView) findViewById(R.id.stat_failpercentage);
        TextView ePerc = (TextView) findViewById(R.id.stat_errorpercentage);
        
        SQLiteDatabase db = SQLiteDatabase.openDatabase("/data" + DBPath, null, SQLiteDatabase.OPEN_READONLY);
        long total = DatabaseUtils.queryNumEntries(db, "verifications");
        long success = 0, fail = 0, error = 0;
        if (total > 0) {
          success = DatabaseUtils.queryNumEntries(db, "verifications", "result = ?", new String[] { Integer.toString(Verification.RESULT_VALID) });
          fail = DatabaseUtils.queryNumEntries(db, "verifications", "result = ?", new String[] { Integer.toString(Verification.RESULT_FAILED) });
          error = DatabaseUtils.queryNumEntries(db, "verifications", "result = ?", new String[] { Integer.toString(Verification.RESULT_INVALID) });
        }
        
        tCount.setText(Long.toString(total));
        sCount.setText(Long.toString(success));
        fCount.setText(Long.toString(fail));
        eCount.setText(Long.toString(error));
        
        if (total > 0) {
          sPerc.setText(Double.toString((100.0 * success) / total) + " %");
          fPerc.setText(Double.toString((100.0 * fail) / total) + " %");
          ePerc.setText(Double.toString((100.0 * error) / total) + " %");
        } else {
          sPerc.setText("");
          fPerc.setText("");
          ePerc.setText("");
        }
    }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
      // This ID represents the Home or Up button. In the case of this
      // activity, the Up button is shown. Use NavUtils to allow users
      // to navigate up one level in the application structure. For
      // more details, see the Navigation pattern on Android Design:
      //
      // http://developer.android.com/design/patterns/navigation.html#up-vs-back
      //
      // TODO: If Settings has multiple levels, Up should navigate up
      // that hierarchy.
      NavUtils.navigateUpFromSameTask(this);
      return true;
    }
    return super.onOptionsItemSelected(item);
  }
  @Override
  public void onClick(View v) {
    switch(v.getId()) {
    case R.id.button2:
      exportDB();
      break;
    }
  }
  
  private void exportDB(){
        File sd = Environment.getExternalStorageDirectory();
      File data = Environment.getDataDirectory();
      FileChannel source=null;
      FileChannel destination=null;
      String backupDBPath = "IRMA_verifications.db";
      File currentDB = new File(data, DBPath);
      File backupDB = new File(sd, backupDBPath);
      try {
           source = new FileInputStream(currentDB).getChannel();
           destination = new FileOutputStream(backupDB).getChannel();
           destination.transferFrom(source, 0, source.size());
           source.close();
           destination.close();
           Toast.makeText(this, "DB Exported!", Toast.LENGTH_LONG).show();
      } catch(IOException e) {
          e.printStackTrace();
      }
  }
}
Java Source Code List
