我想为每个回答的问题注册正确的答案，在点击其中一个备选项后转到下一个问题。我还想在另一个xml文件上显示正确答案的数量，该文件仅包含在最后一个问题被解答后立即保留分数的文本视图
我有一张旗帜和一个带有问题的文字视图，下面有4个按钮和替代品。
这是包含问题的问题类，pictureID（用于测验中的国家标志），选项a，b，c和正确答案。我也持有得分。
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
这是Mainactivity。
public class MainActivity extends AppCompatActivity {
//Method that's gonna help to check index position 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 position
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
答案 0 :(得分：0)
从here
下载更新后的项目我在您的MainActivity中添加了此方法：
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);
}
}