Question

GenEdQuestion.class 测验模式是多种选择。我想保存或将正确答案和所选答案转移到另一个活动（结果）。我转移了分数，但我不知道如何转移结果。我怎么能这样做？

      answer1.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if (answer1.getText() == mAnswer){
                mNumber++;
                mScore++;
                number.setText(" "+mNumber+" .");
                if (mNumber == quizCount){
                    onFinish();
                }
                else{
                    updateQuestion(r.nextInt(mQuestionsLength));
                }
            }else{
                mNumber++;
                number.setText(" "+mNumber+" .");
                if (mNumber == quizCount){
                    onFinish();
                }
                else{
                    updateQuestion(r.nextInt(mQuestionsLength));
                }
            }
            return false;
        }
    });

    answer2.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if (answer2.getText() == mAnswer){
                mNumber++;
                number.setText(" "+mNumber+" .");
                mScore++;
                if (mNumber == quizCount){
                    onFinish();
                }
                else{
                    updateQuestion(r.nextInt(mQuestionsLength));
                }

            }else{
                mNumber++;
                number.setText(" "+mNumber+" .");
                if (mNumber == quizCount){
                    onFinish();
                }
                else{
                    updateQuestion(r.nextInt(mQuestionsLength));
                }

            }
            return false;
        }
    });

    answer3.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if (answer3.getText() == mAnswer){
                mNumber++;
                number.setText(" "+mNumber+" .");
                mScore++;
                if (mNumber == quizCount){
                    onFinish();
                }
                else{
                    updateQuestion(r.nextInt(mQuestionsLength));
                }

            }else{
                mNumber++;
                number.setText(" "+mNumber+" .");
                if (mNumber == quizCount){
                    onFinish();
                }
                else{
                    updateQuestion(r.nextInt(mQuestionsLength));
                }

            }
            return false;
        }
    });

    answer4.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if (answer4.getText() == mAnswer){
                mNumber++;
                number.setText(" "+mNumber+" .");
                mScore++;
                if (mNumber == quizCount){
                    onFinish();
                }
                else{
                    updateQuestion(r.nextInt(mQuestionsLength));
                }

            }else{
                mNumber++;
                number.setText(" "+mNumber+" .");
                if (mNumber == quizCount){
                    onFinish();
                }
                else{
                    updateQuestion(r.nextInt(mQuestionsLength));
                }
            }
            return false;
        }
    });


   new CountDownTimer(60000*60, 1000){
        public void onTick(long secondsLeft){
            mCountDownGenEd.setText(""+String.format("%d min, %d sec",
                    TimeUnit.MILLISECONDS.toMinutes(secondsLeft),
                    TimeUnit.MILLISECONDS.toSeconds(secondsLeft) -
            TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(secondsLeft))));

        }
        public void onFinish(){
            Intent intent = new Intent(getApplicationContext(), GenEdQuestionsResult.class);
            intent.putExtra("this", mScore);
            startActivity(intent);
        }
    }.start();
}

private void onFinish() {
    Intent intent = new Intent(getApplicationContext(), GenEdQuestionsResult.class);
    intent.putExtra("this", mScore);
    startActivity(intent);
}

private void updateQuestion(int i) {

    question.setText(mQuestions.getQuestion(i));
    answer1.setText(mQuestions.getChoice1(i));
    answer2.setText(mQuestions.getChoice2(i));
    answer3.setText(mQuestions.getChoice3(i));
    answer4.setText(mQuestions.getChoice4(i));
    mAnswer = mQuestions.getCorrectAnswer(i);

}

GenEdQuestionsResult.class 此活动将显示分数以及用户是否通过或失败。我如何将结果放在这里？

    mFinalScore = (TextView) findViewById(R.id.scoreTextView);
    mResult = (TextView) findViewById(R.id.resultTextView);
    int score = getIntent().getIntExtra("this", 0);
    mFinalScore.setText(score+" / 20");
    if (score <= 10){mResult.setText("Failed");}
    else{mResult.setText("Passed");}

这是我想要创建的结果

this is the picture of result i want to create

Answer 1

三种方式，共享首选项或getter和setter方法，或者在开始下面的新活动时使用putextra：

共享偏好

在首选项中设置值：

// MY_PREFS_NAME - a static String variable like: 
//public static final String MY_PREFS_NAME = "MyPrefsFile";
SharedPreferences.Editor editor = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE).edit();
 editor.putString("name", "Elena");
 editor.putInt("idName", 12);
 editor.apply();

从偏好中检索数据：

SharedPreferences prefs = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE); 
String restoredText = prefs.getString("text", null);
if (restoredText != null) {
  String name = prefs.getString("name", "No name defined");//"No name defined" is the default value.
  int idName = prefs.getInt("idName", 0); //0 is the default value.
}

参考：https://stackoverflow.com/a/23024962/4674760

Getter / Setter参与新活动

String newenq="New Enquiry";
public void setNewenq(String newenq) {
    this.newenq = newenq;
}

public String getNewenq() {
    return newenq;

}

PutExtra

String easyPuzzle  = "answer";
Intent i = new Intent(this, ToClass.class);
i.putExtra("epuzzle", easyPuzzle);
startActivity(i)

Answer 2

你有三种方法可以做到这一点第一个=＆gt;创建一个静态变量，然后您可以随意访问它，

第二个你可以=＆gt;使用 intent putExtra

Intent i = new Intent(this, SecondClass.class);
i.putExtra("answer", "myAnswer");
startActivity(i)

第三种方法正在使用sharedPreference来查看此链接https://developer.android.com/reference/android/content/SharedPreferences.html

Answer 3

使用像这样的共享偏好：

public static final String answer = "answer"; //declare this globally at the top.
SharedPreferences prefs = getSharedPreferences(Commonclass.ANSWER,Context.MODE_PRIVATE);
SharedPreferences.Editor editor;
editor = prefs.edit();
String a = prefs.getString("answer","answer"); //to get the stored value
editor.putString(theme,"blue"); // to store your answer
editor.commit();

创建一个公共类：

public class Commonclass 
{
  public static final String ANSWER = "answer" ;
}

如何在另一项活动中发送正确答案和所选答案？

3 个答案: