アンドロイドクイズのアプリのスコアを追跡する

Question

回答のある質問ごとに正しい回答者を登録したいのですが、いずれかの回答がクリックされた後、次の質問に移動します。私はまた、最後の質問に答えた直後にスコアを保持するつもりのtextviewのみを含む別のXMLファイルに正解の量を表示したい。オプションの下に4つのボタンがあります。

私はインターネット全体を通り過ぎてしまったと思います。私は本当に助けに感謝します:)

不明な点がある場合は、お気軽にお問い合わせください。

これは質問pictureID（クイズの国旗の場合）、オプションa、b、cおよび正解を保持する質問クラスです。私もスコアを保持しています。

 

public class Question { 

    private int bildID; 
    private String question; 
    private String optA; 
    private String optB; 
    private String optC; 
    private String answer; 
    private String score; 

    //Constructor 

    public Question(int bildID, String question, String optA, String optB, String optC, String answer) { 
     this.bildID = bildID; 
     this.question = question; 
     this.optA = optA; 
     this.optB = optB; 
     this.optC = optC; 
     this.answer = answer; 

    } //End konstruktor 

    //Get & Set method starts 
    public int getBildID() { 
     return bildID; 
    } 

    public void setBildID(int bildID) { 
     this.bildID = bildID; 
    } 

    public String getQuestion() { 
     return question; 
    } 

    public void setQuestion(String question) { 
     this.question = question; 
    } 

    public String getOptA() { 
     return optA; 
    } 

    public void setOptA(String optA) { 
     this.optA = optA; 
    } 

    public String getOptB() { 
     return optB; 
    } 

    public void setOptB(String optB) { 
     this.optB = optB; 
    } 

    public String getOptC() { 
     return optC; 
    } 

    public void setOptC(String optC) { 
     this.optC = optC; 
    } 

    public String getAnswer() { 
     return answer; 
    } 

    public void setAnswer(String answer) { 
     this.answer = answer; 
    } 

    public String getScore() { 
     return score; 
    } 

    public void setScore(String score) { 
     this.score = score; 
    } 
    //Get & Set methods end 

} //End konstruktor 

ここは主活動です。

 
    public class MainActivity extends AppCompatActivity {
 

//Method that's gonna help to check index postion and avoid outofbounds. 
private void fixIndexCountValue() { 
    if (idx >= questionArray.size() - 1) { 
     idx = questionArray.size() - 1; 
    } else if (idx < 0) { 
     idx = 0; 
    } 
} 


//Creates an arraylist thats gonna hold questions, options, answers, pictureID. 
ArrayList<Question> questionArray = new ArrayList<>(); 
//Arraylist thats gonna hold the buttons 
ArrayList<Button> buttons = new ArrayList<>(); 
//Variable for index postion 
int idx = 0; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 


    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    //Arraylists 
    questionArray = new ArrayList<>(); 
    buttons = new ArrayList<>(); 
    //End 

    //CODE FOR QUESTIONS 
    Question q1 = new Question(R.drawable.australien, "What is the capital of Australia?", "Melbourne", "Chicago", "Sydney", "Canberra"); 
    Question q2 = new Question(R.drawable.finland, "What country does this flag belong to?", "Sweden", "Denmark", "Norway", "Finland"); 
    Question q3 = new Question(R.drawable.frankrike, "What is the biggest city in France?", "Lyon", "Marseille", "Bordeaux", "Paris"); 
    Question q4 = new Question(R.drawable.jamaika, "What country does this flag belong to?", "Mexico", "Dominican Republic", "Cuba", "Jamaica"); 
    Question q5 = new Question(R.drawable.kina, "What is the capital of China?", "Shanghai", "Hangzhou", "Guangzhou", "Beijing"); 
    Question q6 = new Question(R.drawable.kurdistan, "What is the capital of Kurdistan?", "Kirkuk", "Dohuk", "Zakho", "Erbil"); 
    Question q7 = new Question(R.drawable.sverige, "What is the capital of Sweden?", "Gothenburg", "Malmö", "Helsinki", "Stockholm"); 
    Question q8 = new Question(R.drawable.norge, "What is the capital of Norway?", "Bergen", "Harstad", "Stockholm", "Oslo"); 
    Question q9 = new Question(R.drawable.ryssland, "What city in Russia has the highest population?", "Saint Petersburg", "Omsk", "Samara", "Moskva"); 
    Question q10 = new Question(R.drawable.tyskland, "What country does this flag belong to?", "Belgia", "Italy", "Austria", "Germany"); 

    questionArray.add(q1); 
    questionArray.add(q2); 
    questionArray.add(q3); 
    questionArray.add(q4); 
    questionArray.add(q5); 
    questionArray.add(q6); 
    questionArray.add(q7); 
    questionArray.add(q8); 
    questionArray.add(q9); 
    questionArray.add(q10); 

    final Question question = questionArray.get(idx); 
    //END CODE FOR QUESTIONS 


    // Code that's gonna fill buttons, tv and imageview with data. 
    final ImageView bild = (ImageView) findViewById(R.id.imageView); 
    final TextView tv_question = (TextView) findViewById(R.id.tv_question); 
    final Button btnAlt1 = (Button) findViewById(R.id.btnAlt1); 
    final Button btnAlt2 = (Button) findViewById(R.id.btnAlt2); 
    final Button btnAlt3 = (Button) findViewById(R.id.btnAlt3); 
    final Button btnAlt4 = (Button) findViewById(R.id.btnAlt4); 
    //Textview on the scorescreen thats going to display score 
    final TextView tvscore = (TextView) findViewById(R.id.tvscore); 
    //KNAPP SOM KOMMER UPP PÅ FÖRSTA SIDAN, STARTA QUIZ 
    final Button btnStart = (Button) findViewById(R.id.btnStart); 

    //Adds data from the Question class with get methods 
    tv_question.setText(question.getQuestion()); 
    bild.setImageResource(question.getBildID()); 
    btnAlt1.setText(question.getOptA()); 
    btnAlt2.setText(question.getOptB()); 
    btnAlt3.setText(question.getOptC()); 
    btnAlt4.setText(question.getAnswer()); 
    //END 

    //Adds the button id in the arraylist 
    buttons.add(btnAlt1); 
    buttons.add(btnAlt2); 
    buttons.add(btnAlt3); 
    buttons.add(btnAlt4); 
    //End 



    //CODE FOR CLICK FUNCTION ON EACH BUTTON 
    btnAlt1.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      idx++; 
      fixIndexCountValue(); 
      Question questionClick = questionArray.get(idx); 
      tv_question.setText(questionClick.getQuestion()); 
      bild.setImageResource(questionClick.getBildID()); 
      Collections.shuffle(buttons); 
      buttons.get(0).setText(questionClick.getOptA()); 
      buttons.get(1).setText(questionClick.getOptB()); 
      buttons.get(2).setText(questionClick.getOptC()); 
      buttons.get(3).setText(questionClick.getAnswer()); 


     } 
    }); //END BUTTON 1 

    btnAlt2.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      idx++; 
      fixIndexCountValue(); 
      Question questionClick = questionArray.get(idx); 
      tv_question.setText(questionClick.getQuestion()); 
      bild.setImageResource(questionClick.getBildID()); 
      Collections.shuffle(buttons); 
      buttons.get(0).setText(questionClick.getOptA()); 
      buttons.get(1).setText(questionClick.getOptB()); 
      buttons.get(2).setText(questionClick.getOptC()); 
      buttons.get(3).setText(questionClick.getAnswer()); 


     } 
    }); //END BUTTON 2 

    btnAlt3.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      idx++; 
      fixIndexCountValue(); 
      Question questionClick = questionArray.get(idx); 
      tv_question.setText(questionClick.getQuestion()); 
      bild.setImageResource(questionClick.getBildID()); 
      Collections.shuffle(buttons); 
      buttons.get(0).setText(questionClick.getOptA()); 
      buttons.get(1).setText(questionClick.getOptB()); 
      buttons.get(2).setText(questionClick.getOptC()); 
      buttons.get(3).setText(questionClick.getAnswer()); 


     } 
    }); //END BUTTON 3 

    btnAlt4.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      idx++; 
      fixIndexCountValue(); 
      Question questionClick = questionArray.get(idx); 
      tv_question.setText(questionClick.getQuestion()); 
      bild.setImageResource(questionClick.getBildID()); 
      Collections.shuffle(buttons); 
      buttons.get(0).setText(questionClick.getOptA()); 
      buttons.get(1).setText(questionClick.getOptB()); 
      buttons.get(2).setText(questionClick.getOptC()); 
      buttons.get(3).setText(questionClick.getAnswer()); 



     } 
    });//END BUTTON 4 

} //End oncreate 


    } //End main 

Answer 1

私はあなたのMainActivityでこのメソッドを追加したhere

から、あなたの更新プロジェクトをダウンロード：あなたは正しい答えを登録するには問題」とはどういう意味ですか

private void showNextQuestionAndSaveAnswer(String answer) 
{ 

    if (answer == null) 
     return; 

    if (questionArray.get(idx).getAnswer().equalsIgnoreCase(answer)) 
    { 
     questionArray.get(idx).isCorrect = true; 
    } 

    idx++; 

    if (idx < questionArray.size()) { 
     fixIndexCountValue(); 
     Question questionClick = questionArray.get(idx); 
     tv_question.setText(questionClick.getQuestion()); 
     bild.setImageResource(questionClick.getBildID()); 
     Collections.shuffle(buttons); 
     buttons.get(0).setText(questionClick.getOptA()); 
     buttons.get(1).setText(questionClick.getOptB()); 
     buttons.get(2).setText(questionClick.getOptC()); 
     buttons.get(3).setText(questionClick.getAnswer()); 
    } 
    else 
    { 
     Intent resultIntent = new Intent(MainActivity.this,ResultActivity.class); 
     resultIntent.putExtra("list",questionArray); 
     startActivity(resultIntent); 
    } 
}