如何完成数组问题，它总是重复

Question

大家好，我需要帮助。 我有这个代码
我有 50 个问题字符串，如果已经出现 10 个问题，我希望游戏结束。谢谢你的帮助

private Question mQuestion = new Question();

private String mAnswer;
private int mScore = 0;
private int mQuestionLenght = 5 ;

Random r;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_quiz);

    r = new Random();


    answer1 = (Button) findViewById(R.id.answer1);
    answer2 = (Button) findViewById(R.id.answer2);
    answer3 = (Button) findViewById(R.id.answer3);
    answer4 = (Button) findViewById(R.id.answer4);

    score = (TextView) findViewById(R.id.score);
    question = (TextView) findViewById(R.id.question);
    score.setText("Score: " + mScore  );

    updateQuestion(r.nextInt(mQuestionLenght));


    answer4.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if(answer4.getText() == mAnswer){
                mScore++;
                score.setText("Score: " + mScore);
                updateQuestion(r.nextInt(mQuestionLenght));
            } else {
                gameOver();
            }
        }
    });
}
private void updateQuestion(int num){
    question.setText(mQuestion.getQuestion(num));
    answer1.setText(mQuestion.getChoice1(num));
    answer2.setText(mQuestion.getChoice2(num));
    answer3.setText(mQuestion.getChoice3(num));
    answer4.setText(mQuestion.getChoice4(num));
    mAnswer = mQuestion.getCorrectAnswer(num);

}
private void gameOver(){

}

如果用户已经回答了 10 个问题游戏停止并显示分数，我有 50 个问题。在该代码中，如果他们错误的答案游戏可以停止，但如果用户总是正确的游戏加载所有问题，它就无法停止

Answer 1

在你的 Acitivty 中，添加一个计数器属性

private int numberOfQuestionsAsked = 0;

每问一个问题后，给你的计数器加 1

if(answer4.getText().equals(mAnswer)){ //note : use .equals() and not == !
    mScore++;
    numberOfQuestionsAsked++;
    score.setText("Score: " + mScore);
    updateQuestion(r.nextInt(mQuestionLenght));
}

用户回答问题后，检查计数器是否达到10，如果是，则进入游戏结束

if(numberOfQuestionsAsked <= 10) {
    gameOver();
}

在gameOver中，重置计数器以便游戏重新开始

numberOfQuestionsAsked = 0;

你的代码应该是这样的

private Question mQuestion = new Question();

private String mAnswer;
private int mScore = 0;
private int mQuestionLenght = 5 ;
private int numberOfQuestionsAsked = 0;

Random r;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_quiz);

    r = new Random();


    answer1 = (Button) findViewById(R.id.answer1);
    answer2 = (Button) findViewById(R.id.answer2);
    answer3 = (Button) findViewById(R.id.answer3);
    answer4 = (Button) findViewById(R.id.answer4);

    score = (TextView) findViewById(R.id.score);
    question = (TextView) findViewById(R.id.question);
    score.setText("Score: " + mScore  );

    updateQuestion(r.nextInt(mQuestionLenght));


    answer4.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if(answer4.getText().equals(mAnswer)){ //note : use .equals() and not == !
                mScore++;
                score.setText("Score: " + mScore);
                updateQuestion(r.nextInt(mQuestionLenght));
                numberOfQuestionsAsked++;
            } else {
                gameOver();
            }
            if(numberOfQuestionsAsked <= 10) {
                gameOver();
            }
        }
    });
}
private void updateQuestion(int num){
    question.setText(mQuestion.getQuestion(num));
    answer1.setText(mQuestion.getChoice1(num));
    answer2.setText(mQuestion.getChoice2(num));
    answer3.setText(mQuestion.getChoice3(num));
    answer4.setText(mQuestion.getChoice4(num));
    mAnswer = mQuestion.getCorrectAnswer(num);

}
private void gameOver(){
        numberOfQuestionsAsked = 0;
}

Answer 2

首先，我会使用：

View.OnClickListener listener = new View.onClickListener() {
    @Override
    public void onClick(View view) {
        if(view instanceOf (TextView) && ((TextView)view).getText().toString().equals(mAnswer)){
            mScore++;
            score.setText("Score: " + mScore);
            if(mScore >= 10) {
                gameCompleted();//ToDo
            } else {
                updateQuestion(r.nextInt(mQuestionLenght));
            }
        } else {
            gameOver();
        }
    }
};

然后，在每个答案中使用此侦听器。 此外，您的随机数可能会失败，因为它可能高于 50 并且可能是重复的答案，并且不建议您进行文本比较，您可以使用为文本分配 id 的对象。

享受编码。

Answer 3

像这样在你的代码中添加一个计数器：

整数计数器 = 0;

if(counter <= 10 ){
    updateQuestion(r.nextInt(mQuestionLenght));
    counter++;
} else {
    gameOver();
}

添加这个并检查，希望它会工作。