Radiogroup在Android的列表视图

Question

我有一个列表视图与动态单选按钮（它将创建基于大小的一些问题，在第一个问题我有4个单选按钮第二个问题可能有3个单选按钮... ..）。我的问题是当用户选择使用单选按钮的答案我需要提交这些表单。那么我怎样才能实现这些列表视图数据以及选定的答案。我还需要检查问题是否回答（表示检查收音机组）。当我提交我想要的整个数据。任何人都可以帮助我。

这是我getview

public View getView(final int position, View convertView, ViewGroup parent) { 
    View view = convertView; 
    final ViewHolder viewHolder = new ViewHolder(); 
    view = View.inflate(mContext, R.layout.item_list_bradenscale_entry, null); 

    viewHolder.txtQuestionHeadName = (TextView) view.findViewById(R.id.textview_question_name); 
    viewHolder.radioGroup = (RadioGroup) view.findViewById(R.id.radio_group); 
    viewHolder.radioButtonOption1 = (RadioButton) view.findViewById(R.id.radio1); 
    viewHolder.radioButtonOption2 = (RadioButton) view.findViewById(R.id.radio2); 
    viewHolder.radioButtonOption3 = (RadioButton) view.findViewById(R.id.radio3); 
    viewHolder.radioButtonOption4 = (RadioButton) view.findViewById(R.id.radio4); 
    viewHolder.txtQuestionHeadHint = (TextView) view.findViewById(R.id.textview_question_hint); 
    viewHolder.txtOption1Hint = (TextView) view.findViewById(R.id.textview_option1Hint); 
    viewHolder.txtOption2Hint = (TextView) view.findViewById(R.id.textview_option2Hint); 
    viewHolder.txtOption3Hint = (TextView) view.findViewById(R.id.textview_option3Hint); 
    viewHolder.txtOption4Hint = (TextView) view.findViewById(R.id.textview_option4Hint); 
    view.setTag(viewHolder); 
    selectedList = new 
    final DataContractQuestionList myDataitem = arrData.get(position); 
    viewHolder.txtQuestionHeadName.setText(myDataitem.QuestionTitle); 
    viewHolder.txtQuestionHeadHint.setText(myDataitem.QuestionHint); 


    viewHolder.radioButtonOption1.setText(myDataitem.QuestionOptions.get(0).OptionTitle); 
    viewHolder.radioButtonOption2.setText(myDataitem.QuestionOptions.get(1).OptionTitle); 
    viewHolder.radioButtonOption3.setText(myDataitem.QuestionOptions.get(2).OptionTitle); 
    viewHolder.txtOption1Hint.setText(myDataitem.QuestionOptions.get(0).OptionHint); 
    viewHolder.txtOption2Hint.setText(myDataitem.QuestionOptions.get(1).OptionHint); 
    viewHolder.txtOption3Hint.setText(myDataitem.QuestionOptions.get(2).OptionHint); 
    if (myDataitem.QuestionOptions.size() < 4) { 
     viewHolder.radioButtonOption4.setVisibility(View.INVISIBLE); 
     viewHolder.txtOption4Hint.setVisibility(View.INVISIBLE); 
    } else { 
     viewHolder.radioButtonOption4.setText(myDataitem.QuestionOptions.get(3).OptionTitle); 
     viewHolder.txtOption4Hint.setText(myDataitem.QuestionOptions.get(3).OptionHint); 
     viewHolder.radioButtonOption4.setChecked(myDataitem.QuestionOptions.get(3).checkedStatus); 

    } 


    viewHolder.radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { 
     @Override 
     public void onCheckedChanged(RadioGroup group, int checkedId) { 
      int selectedRadioButton = group.getCheckedRadioButtonId(); 
      View radioButton = group.findViewById(selectedRadioButton); 
      int radioId = group.indexOfChild(radioButton); 

      if (radioId/2 == 0) { 
       viewHolder.radioButtonOption1.setChecked(true); 
       myDataitem.QuestionOptions.get(0).checkedStatus = true; 
       myDataitem.QuestionOptions.get(1).checkedStatus = false; 
       myDataitem.QuestionOptions.get(2).checkedStatus = false; 
       if (myDataitem.QuestionOptions.size() == 4) { 

        myDataitem.QuestionOptions.get(3).checkedStatus = false; 
       } 
      } else if (radioId/2 == 1) { 
       viewHolder.radioButtonOption2.setChecked(true); 
       myDataitem.QuestionOptions.get(0).checkedStatus = false; 
       myDataitem.QuestionOptions.get(1).checkedStatus = true; 
       myDataitem.QuestionOptions.get(2).checkedStatus = false; 
       if (myDataitem.QuestionOptions.size() == 4) { 

        myDataitem.QuestionOptions.get(3).checkedStatus = false; 
       } 
      } else if (radioId/2 == 2) { 
       viewHolder.radioButtonOption3.setChecked(true); 
       myDataitem.QuestionOptions.get(0).checkedStatus = false; 
       myDataitem.QuestionOptions.get(1).checkedStatus = false; 
       myDataitem.QuestionOptions.get(2).checkedStatus = true; 
       if (myDataitem.QuestionOptions.size() == 4) { 

        myDataitem.QuestionOptions.get(3).checkedStatus = false; 
       } 
      } else if (radioId/2 == 3) { 
       if (myDataitem.QuestionOptions.size() == 4) { 
        viewHolder.radioButtonOption4.setChecked(true); 
        myDataitem.QuestionOptions.get(0).checkedStatus = false; 
        myDataitem.QuestionOptions.get(1).checkedStatus = false; 
        myDataitem.QuestionOptions.get(2).checkedStatus = false; 
        myDataitem.QuestionOptions.get(3).checkedStatus = true; 

       } 
      } 

     } 
    }); 


    viewHolder.radioButtonOption1.setChecked(myDataitem.QuestionOptions.get(0).checkedStatus); 
    viewHolder.radioButtonOption2.setChecked(myDataitem.QuestionOptions.get(1).checkedStatus); 
    viewHolder.radioButtonOption3.setChecked(myDataitem.QuestionOptions.get(2).checkedStatus); 
    return view; 
} 

Answer 1

在适配器getView（）方法，重视听者的单选按钮，同时渲染你的列表项。在检查的事件中，更改对象的属性。您的活动只能访问相同的对象列表并检索最新的问卷状态。

rGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() 
{ 
    public void onCheckedChanged(RadioGroup group, int checkedId) 
    { 
     // This will get the radiobutton that has changed in its check state 
     RadioButton checkedRadioButton = (RadioButton)group.findViewById(checkedId); 
     // This puts the value (true/false) into the variable 
     boolean isChecked = checkedRadioButton.isChecked(); 
     // If the radiobutton that has changed in check state is now checked... 
     if (isChecked) 
     { 
      //Change your object's attribute here 
      question.answer = "xxxx"; 
     } 
    } 
});