Question

如下所示，我正在动态创建一些带有不同类型问题的测验（RadioButtons和CheckBoxes）。
所以我可以正确地生成它们并且它们应该如此出现在问题的最后有一个普通的按钮我想在所有问题都得到解答后才能点击它我有一个功能，以确保所有的RadioButtons都得到了回答但由于我有两种类型的按钮，我无法弄清楚如何确保CheckBox答案中的问题至少有1个已检查答案。

我有以下代码：

    ArrayList<RadioGroup> arrGroup;

@Override
protected void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_quiz);
    buttHole = (Button) findViewById(R.id.button1); 
    buttHole.setEnabled(false);    

    getQuestions();

    //Creating the list of Questions
    LinearLayout mLinearLayout = (LinearLayout) findViewById(R.id.linear1);
    arrGroup = new ArrayList<RadioGroup>();
    try
    {

        for (int i = 0; i <= question.length; i++) 
        {
            if(question[i].multichoice == true)
            {
                TextView title2 = new TextView(this);
                title2.setText(question[i].questionName);
                title2.setTextColor(Color.BLACK);
                mLinearLayout.addView(title2);

                for(int zed = 0; zed < question[i].answers.length; zed++) 
                {               
                    CheckBox box = new CheckBox(this);
                    box.setText(question[i].answers[zed].answer);
                    box.setId(zed);
                    mLinearLayout.addView(box);
                }
            }
            else
            {
                 // create text button
                TextView title = new TextView(this);
                title.setText(question[i].questionName);                   
                title.setTextColor(Color.BLACK);
                mLinearLayout.addView(title);

                // create radio button
                final RadioButton[] rb = new RadioButton[question[i].answers.length];
                RadioGroup radGr = new RadioGroup(this);
                // take a reference of RadioGroup view
                arrGroup.add(radGr);        

                radGr.setOrientation(RadioGroup.VERTICAL);
                radGr.setOnClickListener(new OnClickListener()
                {
                    @Override
                    public void onClick(View v) 
                    {                   
                        checkQuestionsAnswer();
                    }

                });

                for (int j = 0; j < question[i].answers.length; j++) {
                    rb[j] = new RadioButton(this);
                    radGr.addView(rb[j]);
                    rb[j].setText(question[i].answers[j].answer);
                }
                mLinearLayout.addView(radGr);
            }
        }

    }
    catch(Exception e)
    {
        e.printStackTrace();
    }    

}

public boolean checkQuestionsAnswer() 
{
    int count = arrGroup.size();

    for (int i = 0; i < count; i++) 
    {
        if (arrGroup.get(i).getCheckedRadioButtonId() == -1) 
        {
            Toast.makeText(getApplicationContext(), "Not all questions are answered!", Toast.LENGTH_SHORT).show();
            return false;
        }
    }
    Toast.makeText(getApplicationContext(), "Thank you!", Toast.LENGTH_SHORT).show();
    buttHole.setEnabled(true);
    //Return true if all answer are given
    return true;
}

Answer 1

如果每个问题的答案少于10个答案，请将复选框的ID设置为(i*10)+zed。这样你就可以像这样循环遍历

for(int i=0; i<question.length; i++){

   boolean questionAnswered = false;
   for(int zed = 0; zed < question[i].answers.length; zed++) {

       CheckBox box = (CheckBox) findViewById(i*10+zed);
       if(box != null && box.isChecked()) {

           questionAnswered = true;
           ...
       }        

   }

}

我没有尝试这个代码，这只是一个快速而肮脏的提示，但我希望它有所帮助。

Android测验应用程序 - 确保所有问题都得到解答

1 个答案: