MainActivity.java

package it.penpen.android.passphrase_generator;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.widget.TextView;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_load);
        new DictionaryLoader().execute();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

    private class DictionaryLoader extends AsyncTask<Void, Void, List<String>> {

        @Override
        protected List<String> doInBackground(Void... params) {
            String word;
            List<String> dictionary = new ArrayList<String>();
            InputStream inputStream = getResources().openRawResource(R.raw.dictionary);
            InputStreamReader inputReader = new InputStreamReader(inputStream);
            BufferedReader bufferedReader = new BufferedReader(inputReader);
            try {
                while ((word = bufferedReader.readLine()) != null) {
                    dictionary.add(word);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            return dictionary;
        }

        @Override
        protected void onPostExecute(List<String> result) {
            Integer loadedWords = result.size();
            ((TextView)findViewById(R.id.words_loaded_number)).setText(loadedWords.toString());
        }
    }
}