Android Open Source - Speedy-Numbers High Scores

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From Project

Back to project page Speedy-Numbers.

License

The source code is released under:

GNU General Public License

Java Source Code

/* 
* Speedy Numbers Android Game/*from  www .  j a v  a 2 s  . com*/
* Copyright 2013 Jesse Toms
* 
*   This file is part of Speedy Numbers.
*
*   Speedy Numbers 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.
*
*   Speedy Numbers 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 Speedy Numbers.  If not, see <http://www.gnu.org/licenses/>.
*   
* About: This class is for setting up the High Scores screen.
* It uses a ScrollView containing a TableLayout to display up to 10 high scores, where only TableRows containing a high score are shown.
* It has a Button which when pressed deletes all high scores (after a confirmation AlertDialog).
* If there are no high scores, a TextView is shown instead of the ScrollView and Button stating this.
*/

package com.gmail.jesseotoms.speedynumbers;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.ScrollView;
import android.widget.TableRow;
import android.widget.TextView;
import java.util.ArrayList;

public class HighScores extends Activity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_high_scores);
    SharedPreferences prefs = this.getSharedPreferences("com.gmail.jesseotoms.speedynumbers", Context.MODE_PRIVATE);
    ArrayList<String> highScoreModes = getHighScoreModes(prefs);
    ArrayList<Integer> highScoreErrors = getHighScoreErrors(prefs);
    ArrayList<String> highScoreFinalTimes = getHighScoreFinalTimes(prefs);
    int numHighScores = highScoreFinalTimes.size();
    if(numHighScores>0){
      displayHighScores(numHighScores, highScoreModes, highScoreErrors, highScoreFinalTimes);
    } else {
      displayNoHighScores();
    }
  }
  
  private ArrayList<String> getHighScoreModes(SharedPreferences prefs){
    ArrayList<String> highScoreModes = new ArrayList<String>(10);
    for(int i = 1; i <= 10; i++){
      String currentMode = prefs.getString("highScoreMode"+i, null);
      if(currentMode!=null){
        highScoreModes.add(currentMode);
      }
    }
    highScoreModes.trimToSize();
    return highScoreModes;
  }
  
  private ArrayList<Integer> getHighScoreErrors(SharedPreferences prefs){
    ArrayList<Integer> highScoreErrors = new ArrayList<Integer>(10);
    for(int i = 1; i <= 10; i++){
      int currentErrors = prefs.getInt("highScoreErrors"+i, -1);
      if(currentErrors!=-1){
        highScoreErrors.add(currentErrors);
      }
    }
    highScoreErrors.trimToSize();
    return highScoreErrors;
  }
  
  private ArrayList<String> getHighScoreFinalTimes(SharedPreferences prefs){
    ArrayList<String> highScoreFinalTimes = new ArrayList<String>(10);
    for(int i = 1; i <= 10; i++){
      String currentTime = prefs.getString("highScoreStringTime"+i, null);
      if(currentTime!=null){
        highScoreFinalTimes.add(currentTime);
      }
    }
    highScoreFinalTimes.trimToSize();
    return highScoreFinalTimes;
  }
  
  private void displayHighScores(int numHighScores, ArrayList<String> highScoreModes, ArrayList<Integer> highScoreErrors, ArrayList<String> highScoreFinalTimes){    
    ScrollView highScoresScrollView = (ScrollView)findViewById(R.id.scrollview_high_scores);
    Button resetHighScoresButton = (Button)findViewById(R.id.button_reset_high_scores);
    TextView noHighScoresTextView = (TextView)findViewById(R.id.textview_no_high_scores);
    highScoresScrollView.setVisibility(View.VISIBLE);
    resetHighScoresButton.setVisibility(View.VISIBLE);
    noHighScoresTextView.setVisibility(View.GONE);
    for(int i = numHighScores+1; i <= 10; i++){//Hide the TableRows that won't contain High Scores.
      TableRow currentRow = (TableRow)findViewById(getResources().getIdentifier("tablerow_highscores_"+i,"id",this.getPackageName()));
      currentRow.setVisibility(View.GONE);
    }
    for(int i = 1; i <= numHighScores; i++){//Add the High Scores to their TextViews.
      TableRow currentRow = (TableRow)findViewById(getResources().getIdentifier("tablerow_highscores_"+i,"id",this.getPackageName()));
      currentRow.setVisibility(View.VISIBLE);
      String textViewId = "textview_table_";
      if(i<=10){
        TextView currentPositionTextView = (TextView)findViewById(getResources().getIdentifier(textViewId+i+"_0", "id", getPackageName()));
        currentPositionTextView.setText(""+i);
        TextView currentModeTextView = (TextView)findViewById(getResources().getIdentifier(textViewId+i+"_1", "id", getPackageName()));
        currentModeTextView.setText(highScoreModes.remove(0));
        TextView currentErrorTextView = (TextView)findViewById(getResources().getIdentifier(textViewId+i+"_2", "id", getPackageName()));
        currentErrorTextView.setText(""+highScoreErrors.remove(0));
        TextView currentTimeTextView = (TextView)findViewById(getResources().getIdentifier(textViewId+i+"_3", "id", getPackageName()));
        currentTimeTextView.setText(highScoreFinalTimes.remove(0));
      }
    }
  }
  
  private void displayNoHighScores(){
    ScrollView highScoresScrollView = (ScrollView)findViewById(R.id.scrollview_high_scores);
    Button resetHighScoresButton = (Button)findViewById(R.id.button_reset_high_scores);
    TextView noHighScoresTextView = (TextView)findViewById(R.id.textview_no_high_scores);
    highScoresScrollView.setVisibility(View.GONE);
    resetHighScoresButton.setVisibility(View.GONE);
    noHighScoresTextView.setVisibility(View.VISIBLE);
    noHighScoresTextView.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, (float) 0.8));
    noHighScoresTextView.setText("There are no high scores.");
  }
  
  //When the delete high scores button is pressed, this shows an AlertDialog to confirm it.
  public void confirmHighScoreDeletion(View view){
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage("Delete all high scores?");
    builder.setPositiveButton("Yes", new DialogInterface.OnClickListener(){
      public void onClick(DialogInterface dialog, int id) {
        deleteHighScores();
      }});
    builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int id) {
      }});
    AlertDialog dialog = builder.create();    
    dialog.show();
    TextView dialogTextView = (TextView)dialog.findViewById(android.R.id.message);
    dialogTextView.setGravity(Gravity.CENTER);
  }
  
  public void deleteHighScores(){
    SharedPreferences prefs = this.getSharedPreferences("com.gmail.jesseotoms.speedynumbers", Context.MODE_PRIVATE);
    prefs.edit().clear().commit();
    displayNoHighScores();
  }
}

Java Source Code List

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