pl.reticular.ttw.HighScoresActivity.java Source code

Introduction

Here is the source code for pl.reticular.ttw.HighScoresActivity.java

Source

package pl.reticular.ttw;

/*
 * Copyright (C) 2016 Piotr Jankowski
 *
 * This file is part of Tear The Web.
 *
 * Tear The Web is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Tear The Web is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Tear The Web. If not, see <http://www.gnu.org/licenses/>.
 */

import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.widget.CursorAdapter;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.text.format.DateUtils;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.TextView;

import pl.reticular.ttw.utils.DBHelper;
import pl.reticular.ttw.utils.ResultsTableHelper;

public class HighScoresActivity extends AppCompatActivity {

    private CursorAdapter adapter;

    private DBHelper dbHelper;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //Log.i(getClass().getName(), "onCreate");

        setContentView(R.layout.layout_high_scores);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_high_scores);
        setSupportActionBar(toolbar);

        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
        }

        ListView listView = (ListView) findViewById(R.id.list_high_scores);
        TextView noGames = (TextView) findViewById(R.id.text_no_games);

        listView.setEmptyView(noGames);

        listView.addHeaderView(createHeader(listView));

        adapter = new HighScoresCursorAdapter(this, null, 0);

        listView.setAdapter(adapter);

        dbHelper = new DBHelper(this);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_high_scores, menu);
        return true;
    }

    @Override
    protected void onStart() {
        super.onStart();
        //Log.i(getClass().getName(), "onStart");

        Cursor cursor = createCursor();
        adapter.changeCursor(cursor);
    }

    @Override
    protected void onStop() {
        super.onStop();
        //Log.i(getClass().getName(), "onStop");

        dbHelper.close();
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        // Respond to the clear button
        case R.id.action_clear:
            clearHighScores();
            Cursor cursor = createCursor();
            adapter.changeCursor(cursor);
            break;
        // Respond to the action bar's Up/Home button
        case android.R.id.home:
            onBackPressed();
            break;
        }

        return super.onOptionsItemSelected(item);
    }

    private View createHeader(ViewGroup listView) {
        View header = getLayoutInflater().inflate(R.layout.layout_high_score, listView, false);
        TextView dateText = (TextView) header.findViewById(R.id.text_date);
        TextView scoreText = (TextView) header.findViewById(R.id.text_score);

        dateText.setTextColor(Color.WHITE);
        scoreText.setTextColor(Color.WHITE);

        dateText.setText(R.string.high_scores_date);
        scoreText.setText(R.string.high_scores_score);

        return header;
    }

    private Cursor createCursor() {
        SQLiteDatabase db = dbHelper.getReadableDatabase();

        String table = ResultsTableHelper.TABLE_NAME;

        String[] columns = new String[] { ResultsTableHelper.RESULT._ID, ResultsTableHelper.RESULT.DATE,
                ResultsTableHelper.RESULT.SCORE };

        String orderBy = ResultsTableHelper.RESULT.SCORE + " DESC, " + ResultsTableHelper.RESULT.DATE + " DESC";

        return db.query(table, columns, null, null, null, null, orderBy, null);
    }

    private void clearHighScores() {
        SQLiteDatabase db = dbHelper.getWritableDatabase();

        db.delete(ResultsTableHelper.TABLE_NAME, null, null);
    }

    private class HighScoresCursorAdapter extends CursorAdapter {
        public HighScoresCursorAdapter(Context context, Cursor cursor, int flags) {
            super(context, cursor, flags);
        }

        @Override
        public View newView(Context context, Cursor cursor, ViewGroup parent) {
            return LayoutInflater.from(context).inflate(R.layout.layout_high_score, parent, false);
        }

        @Override
        public void bindView(View view, Context context, Cursor cursor) {
            TextView dateText = (TextView) view.findViewById(R.id.text_date);
            TextView scoreText = (TextView) view.findViewById(R.id.text_score);

            long date = cursor.getLong(cursor.getColumnIndexOrThrow(ResultsTableHelper.RESULT.DATE));
            int score = cursor.getInt(cursor.getColumnIndexOrThrow(ResultsTableHelper.RESULT.SCORE));

            long now = System.currentTimeMillis();
            String timeSpan = (String) DateUtils.getRelativeTimeSpanString(date, now, DateUtils.SECOND_IN_MILLIS,
                    DateUtils.FORMAT_ABBREV_RELATIVE);
            dateText.setText(timeSpan);

            scoreText.setText(String.format("%d", score));
        }
    }
}