android - 如何在按钮上同时实现DialogBox和onLongClick？

Question

我正在工作onLongClickListner，DialogBox我想添加button，当我点击它时打开一个dialogBox（它首先询问你是否要选择按钮）点击 DialogBu​​tton 后True它会回到选中状态，button然后它会保持button一段时间以检查答案，如果答案正确则显示消息“答案为真”，错误则显示消息“答案为假”。

这是我的代码：-

public class QuestionActivity extends Activity implements OnClickListener{
private Question currentQ;
private GamePlay currentGame;




@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.question);
    processSession();

}
private void processSession(){
            /**
     * Configure current game and get question
     */
    currentGame = ((CYKApplication)getApplication()).getCurrentGame();
    currentQ = currentGame.getNextQuestion();
    Button nextBtn1 = (Button) findViewById(R.id.answer1);
    nextBtn1.setOnClickListener(this);
    Button nextBtn2 = (Button) findViewById(R.id.answer2);
    nextBtn2.setOnClickListener(this);
    Button nextBtn3 = (Button) findViewById(R.id.answer3);
    nextBtn3.setOnClickListener(this);
    Button nextBtn4 = (Button) findViewById(R.id.answer4);
    nextBtn4.setOnClickListener(this);
    Button nextBtn5 = (Button) findViewById(R.id.answer5);
    nextBtn5.setOnClickListener(this);
    /**
     * Update the question and answer options..
     */
    setQuestions();

}


/**
 * Method to set the text for the question and answers from the current games
 * current question
 */
private void setQuestions() {
    //set the question text from current question
    String question = Utility.capitalise(currentQ.getQuestion());
    TextView qText = (TextView) findViewById(R.id.question);
    qText.setText(question);

    //set the available options
    List<String> answers = currentQ.getQuestionOptions();
    TextView option1 = (TextView) findViewById(R.id.answer1);
    option1.setText(Utility.capitalise(answers.get(0)));

    TextView option2 = (TextView) findViewById(R.id.answer2);
    option2.setText(Utility.capitalise(answers.get(1)));

    TextView option3 = (TextView) findViewById(R.id.answer3);
    option3.setText(Utility.capitalise(answers.get(2)));

    TextView option4 = (TextView) findViewById(R.id.answer4);
    option4.setText(Utility.capitalise(answers.get(3)));


    int score = currentGame.getScore();
    String scr = String.valueOf(score);
    TextView score1 = (TextView) findViewById(R.id.score);
    score1.setText(scr);
  try{ 
     new CountDownTimer(20000, 1000) {

        public void onTick(long millisUntilFinished) {
            TextView timers = (TextView) findViewById(R.id.timers);
            timers.setText("" + millisUntilFinished / 1000);
        }

        public void onFinish() { 
            currentGame.decrementScore();
            processSession();
               }
     }.start();
  }
  catch(Exception ex)
  {
      throw new RuntimeException(ex);
  }
    }


@Override
public void onClick(View arg0) {
    //Log.d("Questions", "Moving to next question");
    if(arg0.getId()==R.id.answer5)
    {
    new AlertDialog.Builder(this).setMessage("Are you sure?").setCancelable(true).setPositiveButton("Yes",new DialogInterface.OnClickListener() {


    public void onClick(DialogInterface dialog,int id) {
            finish();
             }
         }).setNegativeButton("No", null).show();

            }

    else
    {

        if(!checkAnswer(arg0)) return;  

    /**
     * check if end of game
     */
    if (currentGame.isGameOver()){
        //Log.d("Questions", "End of game! lets add up the scores..");
        //Log.d("Questions", "Questions Correct: " + currentGame.getRight());
        //Log.d("Questions", "Questions Wrong: " + currentGame.getWrong());
        Intent i = new Intent(this, EndgameActivity.class);
        startActivity(i);
        finish();
    }
    else{
        Intent i = new Intent(this, QuestionActivity.class);
        startActivity(i);
        finish();
      }
    }
  }



@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
    switch (keyCode)
    {
    case KeyEvent.KEYCODE_BACK :
        return true;
    }

    return super.onKeyDown(keyCode, event);
}


/**
 * Check if a checkbox has been selected, and if it
 * has then check if its correct and update gamescore
 */
private boolean checkAnswer(View view) {

    Button b=(Button) view;
    String answer = b.getText().toString();

    b.setBackgroundResource(R.drawable.ans);
         // disable the button for further clicks.
         b.setEnabled(false);
        //Log.d("Questions", "Valid Checkbox selection made - check if correct");
        if (currentQ.getAnswer().equalsIgnoreCase(answer))
        {
            b.setBackgroundResource(R.drawable.ansgreen);
            //Log.d("Questions", "Correct Answer!");
            currentGame.incrementScore();
        }
        else{
            b.setBackgroundResource(R.drawable.ansred);
            //Log.d("Questions", "Incorrect Answer!");
            currentGame.decrementScore();
        }
        return true;
    }

任何答案都是可观的。

提前致谢

Answer 1

如果您想使用 longClick on 按钮显示答案，您应该将 onLongClickListener 附加到此按钮。

1. 为您的班级实施 onLongClickListener
2. 在覆盖的方法“onLongClick”中编写描述您想要显示的答案的代码。