Created
April 11, 2018 05:19
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Kent Stole Quiz App
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<?xml version="1.0" encoding="utf-8"?> | |
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" | |
xmlns:app="http://schemas.android.com/apk/res-auto" | |
xmlns:tools="http://schemas.android.com/tools" | |
android:layout_width="match_parent" | |
android:layout_height="match_parent" | |
tools:context=".MainActivity" | |
android:orientation="vertical"> | |
<ImageView | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:src="@drawable/kentecloth" | |
android:layout_weight="1"/> | |
<TextView | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Test Your Knowledge of the Kente Stole" | |
android:textSize="24sp" | |
android:gravity="center" | |
android:textStyle="bold" | |
android:textColor="@android:color/black"/> | |
<TextView | |
android:id="@+id/question" | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:textSize="24sp" | |
android:text="" | |
android:textColor="@android:color/black"/> | |
<RadioGroup | |
android:id="@+id/all_radio_buttons" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:orientation="vertical"> | |
<RadioButton | |
android:id="@+id/black_radio_button" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Black" | |
android:textAppearance="?android:textAppearanceMedium" | |
android:onClick="answerQuestion"/> | |
<RadioButton | |
android:id="@+id/gold_radio_button" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Gold" | |
android:textAppearance="?android:textAppearanceMedium" | |
android:onClick="answerQuestion"/> | |
<RadioButton | |
android:id="@+id/white_radio_button" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="White" | |
android:textAppearance="?android:textAppearanceMedium" | |
android:onClick="answerQuestion"/> | |
<RadioButton | |
android:id="@+id/red_radio_button" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Red" | |
android:textAppearance="?android:textAppearanceMedium" | |
android:onClick="answerQuestion"/> | |
<RadioButton | |
android:id="@+id/green_radio_button" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" | |
android:text="Green" | |
android:textAppearance="?android:textAppearanceMedium" | |
android:onClick="answerQuestion"/> | |
</RadioGroup> | |
<TextView | |
android:id="@+id/results" | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:text="" | |
android:textSize="32sp"/> | |
<TextView | |
android:id="@+id/score" | |
android:layout_width="match_parent" | |
android:layout_height="wrap_content" | |
android:text="Score: " | |
android:textSize="32sp"/> | |
</LinearLayout> |
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package com.shamikalashawn.quizapp; | |
import android.support.v7.app.AppCompatActivity; | |
import android.os.Bundle; | |
import android.view.View; | |
import android.widget.RadioButton; | |
import android.widget.RadioGroup; | |
import android.widget.TextView; | |
import android.widget.Toast; | |
import java.util.*; | |
import java.util.Random; | |
public class MainActivity extends AppCompatActivity { | |
Integer questionNumber = 0; | |
Integer score = 0; | |
Integer numberOfQuestions = 0; | |
ArrayList usedQuestions = new ArrayList(); | |
HashMap questions = new HashMap(); | |
HashMap answers = new HashMap(); | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
//populate list of questions | |
questions.put(1, "Which color represents posterity?"); | |
questions.put(2, "Which color represents maturity?"); | |
questions.put(3, "Which color represents pureness?"); | |
questions.put(4, "Which color represents mourning?"); | |
questions.put(5, "Which color represents spiritual growth?"); | |
numberOfQuestions = questions.size(); | |
//set answers | |
answers.put("Which color represents posterity?", "Gold"); | |
answers.put("Which color represents maturity?", "Black"); | |
answers.put("Which color represents pureness?", "White"); | |
answers.put("Which color represents mourning?", "Red"); | |
answers.put("Which color represents spiritual growth?", "Green"); | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_main); | |
//select and display random question | |
pickQuestion(); | |
//display score | |
displayScore(); | |
} | |
/** | |
* When radio button is clicked, this method checks the answer, updates the score, and displays a new question | |
*/ | |
public void answerQuestion(View view) { | |
//capture correct answer for current question | |
String currentQuestion = questions.get(questionNumber).toString(); | |
String correctAnswer = answers.get(currentQuestion).toString(); | |
//determine which radio button is checked and compare to question's correct answer | |
// boolean checked = ((RadioButton) view).isChecked(); | |
// | |
// switch (view.getId()){ | |
// case R.id.black_radio_button: | |
// if (checked && correctAnswer == "Black"){ | |
// score += 10; | |
// uncheck(R.id.black_radio_button); | |
// Toast.makeText(getBaseContext(), "That's correct! You earned 10 more points!!", Toast.LENGTH_SHORT).show(); | |
// break; | |
// } | |
// | |
// case R.id.gold_radio_button: | |
// if (checked && correctAnswer == "Gold"){ | |
// score += 10; | |
// uncheck(R.id.gold_radio_button); | |
// Toast.makeText(getBaseContext(), "That's correct! You earned 10 more points!!", Toast.LENGTH_SHORT).show(); | |
// break; | |
// } | |
// | |
// case R.id.green_radio_button: | |
// if (checked && correctAnswer == "Green"){ | |
// score += 10; | |
// uncheck(R.id.green_radio_button); | |
// Toast.makeText(getBaseContext(), "That's correct! You earned 10 more points!!", Toast.LENGTH_SHORT).show(); | |
// break; | |
// } | |
// | |
// | |
// case R.id.white_radio_button: | |
// if (checked && correctAnswer == "White"){ | |
// score += 10; | |
// uncheck(R.id.white_radio_button); | |
// Toast.makeText(getBaseContext(), "That's correct! You earned 10 more points!!", Toast.LENGTH_SHORT).show(); | |
// break; | |
// } | |
// | |
// case R.id.red_radio_button: | |
// if (checked && correctAnswer == "Red"){ | |
// score += 10; | |
// uncheck(R.id.red_radio_button); | |
// Toast.makeText(getBaseContext(), "That's correct! You earned 10 more points!!", Toast.LENGTH_SHORT).show(); | |
// break; | |
// } | |
// | |
// default: | |
// RadioGroup all = (RadioGroup) findViewById(R.id.all_radio_buttons); | |
// all.clearCheck(); | |
// Toast.makeText(getBaseContext(), "Sorry, that is incorrect. We were looking for " + correctAnswer + ".", Toast.LENGTH_SHORT).show(); | |
// | |
// } | |
RadioButton black = findViewById(R.id.black_radio_button); | |
RadioButton red = findViewById(R.id.red_radio_button); | |
RadioButton white = findViewById(R.id.white_radio_button); | |
RadioButton gold = findViewById(R.id.gold_radio_button); | |
RadioButton green = findViewById(R.id.green_radio_button); | |
RadioGroup all = findViewById(R.id.all_radio_buttons); | |
if (black.isChecked() && correctAnswer == "Black") { | |
score += 10; | |
displayResults("That's correct! You earned 10 more points!!"); | |
} else if (red.isChecked() && correctAnswer == "Red") { | |
score += 10; | |
displayResults("That's correct! You earned 10 more points!!"); | |
} else if (white.isChecked() && correctAnswer == "White") { | |
score += 10; | |
displayResults("That's correct! You earned 10 more points!!"); | |
} else if (gold.isChecked() && correctAnswer == "Gold") { | |
score += 10; | |
displayResults("That's correct! You earned 10 more points!!"); | |
} else if (green.isChecked() && correctAnswer == "Green") { | |
score += 10; | |
displayResults("That's correct! You earned 10 more points!!"); | |
} else { | |
displayResults("Sorry, that is incorrect. We were looking for " + correctAnswer + "."); | |
} | |
//clear selection | |
all.clearCheck(); | |
//update score | |
displayScore(); | |
//select a new question | |
pickQuestion(); | |
} | |
/** | |
* This method displays the given text on the screen. | |
*/ | |
private void displayQuestion(String message) { | |
TextView questionTextView = findViewById(R.id.question); | |
questionTextView.setText(message); | |
} | |
/** | |
* This method displays the given text on the screen. | |
*/ | |
private void displayResults(String message) { | |
TextView questionTextView = findViewById(R.id.results); | |
questionTextView.setText(message); | |
} | |
// /** | |
// * This method unchecks the radio button previously selected | |
// */ | |
// private void uncheck(Integer buttonID) { | |
// RadioButton selectedRadioButton = (RadioButton) findViewById(buttonID); | |
// selectedRadioButton.toggle(); | |
// } | |
/** | |
* This method displays the score. | |
*/ | |
private void displayScore() { | |
TextView scoreTextView = findViewById(R.id.score); | |
scoreTextView.setText("Score: " + score); | |
} | |
/** | |
* This method repopulates the hashMap of questions | |
*/ | |
public void reset() { | |
usedQuestions = new ArrayList(); | |
score = 0; | |
displayScore(); | |
} | |
/** | |
* This method picks a random question | |
*/ | |
public void pickQuestion() { | |
Integer usedQuestionsLength = usedQuestions.size(); | |
if (usedQuestionsLength == numberOfQuestions) { | |
displayResults("That's the game! Your score is " + score + ". Let's play again!"); | |
reset(); | |
} | |
Random rand = new Random(); | |
questionNumber = rand.nextInt(numberOfQuestions) + 1; | |
//pick a random index and ensure it has not been used before | |
while (usedQuestions.contains(questionNumber)) { | |
if (usedQuestionsLength < numberOfQuestions) { | |
questionNumber = rand.nextInt(numberOfQuestions) + 1; | |
} else { | |
reset(); | |
} | |
} | |
//add random question number to used questions array | |
usedQuestions.add(questionNumber); | |
//display random question | |
String randQuestion = questions.get(questionNumber).toString(); | |
displayQuestion(randQuestion); | |
} | |
} |
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