Java tutorial
/* * Copyright 2013 Simon Willeke * contact: hamstercount@hotmail.com */ /* This file is part of Blockinger. Blockinger 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. Blockinger 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 Blockinger. If not, see <http://www.gnu.org/licenses/>. */ package com.mobvoi.knowledgegraph.wearcontroltetris.activities; import android.app.AlertDialog; import android.app.ListActivity; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.widget.SimpleCursorAdapter; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; import android.widget.TextView; import com.mobvoi.knowledgegraph.wearcontroltetris.R; import com.mobvoi.knowledgegraph.wearcontroltetris.components.GameState; import com.mobvoi.knowledgegraph.wearcontroltetris.components.Sound; import com.mobvoi.knowledgegraph.wearcontroltetris.db.HighscoreOpenHelper; import com.mobvoi.knowledgegraph.wearcontroltetris.db.ScoreDataSource; public class MainActivity extends ListActivity { public static final int SCORE_REQUEST = 0x0; /** This key is used to access the player name, which is returned as an Intent from the gameactivity upon completion (gameover). * The Package Prefix is mandatory for Intent data */ public static final String PLAYERNAME_KEY = "org.blockinger.game.activities.playername"; /** This key is used to access the player name, which is returned as an Intent from the gameactivity upon completion (gameover). * The Package Prefix is mandatory for Intent data */ public static final String SCORE_KEY = "org.blockinger.game.activities.score"; public ScoreDataSource datasource; private SimpleCursorAdapter adapter; private AlertDialog.Builder startLevelDialog; private AlertDialog.Builder donateDialog; private int startLevel; private View dialogView; private SeekBar leveldialogBar; private TextView leveldialogtext; private Sound sound; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); PreferenceManager.setDefaultValues(this, R.xml.simple_preferences, true); PreferenceManager.setDefaultValues(this, R.xml.advanced_preferences, true); /* Create Music */ sound = new Sound(this); sound.startMusic(Sound.MENU_MUSIC, 0); /* Database Management */ Cursor mc; datasource = new ScoreDataSource(this); datasource.open(); mc = datasource.getCursor(); // Use the SimpleCursorAdapter to show the // elements in a ListView adapter = new SimpleCursorAdapter((Context) this, R.layout.blockinger_list_item, mc, new String[] { HighscoreOpenHelper.COLUMN_SCORE, HighscoreOpenHelper.COLUMN_PLAYERNAME }, new int[] { R.id.text1, R.id.text2 }, SimpleCursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER); setListAdapter(adapter); /* Create Startlevel Dialog */ startLevel = 0; startLevelDialog = new AlertDialog.Builder(this); startLevelDialog.setTitle(R.string.startLevelDialogTitle); startLevelDialog.setCancelable(false); startLevelDialog.setNegativeButton(R.string.startLevelDialogCancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); startLevelDialog.setPositiveButton(R.string.startLevelDialogStart, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { MainActivity.this.start(); } }); /* Create Donate Dialog */ donateDialog = new AlertDialog.Builder(this); donateDialog.setTitle(R.string.pref_donate_title); donateDialog.setMessage(R.string.pref_donate_summary); donateDialog.setNegativeButton(R.string.startLevelDialogCancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); donateDialog.setPositiveButton(R.string.donate_button, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { String url = getResources().getString(R.string.donation_url); Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse(url)); startActivity(i); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.action_settings: Intent intent = new Intent(this, SettingsActivity.class); startActivity(intent); return true; case R.id.action_about: Intent intent1 = new Intent(this, AboutActivity.class); startActivity(intent1); return true; case R.id.action_donate: donateDialog.show(); return true; case R.id.action_help: Intent intent2 = new Intent(this, HelpActivity.class); startActivity(intent2); return true; case R.id.action_exit: GameState.destroy(); MainActivity.this.finish(); return true; default: return super.onOptionsItemSelected(item); } } public void start() { Intent intent = new Intent(this, GameActivity.class); Bundle b = new Bundle(); b.putInt("mode", GameActivity.NEW_GAME); //Your id b.putInt("level", startLevel); //Your id b.putString("playername", ((TextView) findViewById(R.id.nicknameEditView)).getText().toString()); //Your id intent.putExtras(b); //Put your id to your next Intent startActivityForResult(intent, SCORE_REQUEST); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode != SCORE_REQUEST) return; if (resultCode != RESULT_OK) return; String playerName = data.getStringExtra(PLAYERNAME_KEY); long score = data.getLongExtra(SCORE_KEY, 0); datasource.open(); datasource.createScore(score, playerName); } public void onClickStart(View view) { dialogView = getLayoutInflater().inflate(R.layout.seek_bar_dialog, null); leveldialogtext = ((TextView) dialogView.findViewById(R.id.leveldialogleveldisplay)); leveldialogBar = ((SeekBar) dialogView.findViewById(R.id.levelseekbar)); leveldialogBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) { leveldialogtext.setText("" + arg1); startLevel = arg1; } @Override public void onStartTrackingTouch(SeekBar arg0) { } @Override public void onStopTrackingTouch(SeekBar arg0) { } }); leveldialogBar.setProgress(startLevel); leveldialogtext.setText("" + startLevel); startLevelDialog.setView(dialogView); startLevelDialog.show(); } public void onClickResume(View view) { Intent intent = new Intent(this, GameActivity.class); Bundle b = new Bundle(); b.putInt("mode", GameActivity.RESUME_GAME); //Your id b.putString("playername", ((TextView) findViewById(R.id.nicknameEditView)).getText().toString()); //Your id intent.putExtras(b); //Put your id to your next Intent startActivityForResult(intent, SCORE_REQUEST); } @Override protected void onPause() { super.onPause(); sound.pause(); sound.setInactive(true); }; @Override protected void onStop() { super.onStop(); sound.pause(); sound.setInactive(true); datasource.close(); }; @Override protected void onDestroy() { super.onDestroy(); sound.release(); sound = null; datasource.close(); }; @Override protected void onResume() { super.onResume(); sound.setInactive(false); sound.resume(); datasource.open(); Cursor cursor = datasource.getCursor(); adapter.changeCursor(cursor); if (!GameState.isFinished()) { ((Button) findViewById(R.id.resumeButton)).setEnabled(true); ((Button) findViewById(R.id.resumeButton)).setTextColor(getResources().getColor(R.color.square_error)); } else { ((Button) findViewById(R.id.resumeButton)).setEnabled(false); ((Button) findViewById(R.id.resumeButton)).setTextColor(getResources().getColor(R.color.holo_grey)); } }; }