java - radio 组不工作和垂直对齐android

Question

JSONArray jsonQuestion = new JSONArray(obj.get("question").toString());
for (int iii = 0; iii < jsonQuestion.length(); iii++) {
    LinearLayout lll = new LinearLayout(Questionnaire.this);
    lll.setOrientation(LinearLayout.VERTICAL);


    JSONObject obj2 = (JSONObject) jsonQuestion.get(iii);
    System.out.println(obj2.get("question"));

    TextView tv = new TextView(Questionnaire.this);

    tv.setText(obj2.get("question").toString());
    lll.addView(tv);




    JSONArray jsonAnswer = new JSONArray(obj.get("answer").toString());
    Log.d("Reading Answer: ", jsonAnswer + "");

    for (int iiii = 0; iiii < jsonAnswer.length(); iiii++) {
        JSONObject obj3 = (JSONObject) jsonAnswer.get(iiii);
        System.out.println(obj2.get("questiosysid").toString().matches(obj3.get("questionid").toString()));
        if (obj2.get("questiosysid").toString().matches(obj3.get("questionid").toString())) {
            TextView tv1 = new TextView(Questionnaire.this);
            tv1.setText(obj3.get("inputname").toString());


            RadioGroup group = new RadioGroup(Questionnaire.this);
            group.setOrientation(RadioGroup.HORIZONTAL); // RadioGroup.HORIZONTAL or RadioGroup.VERTICAL

            if (obj3.get("inputtype").toString().matches("radio")) {

                RadioButton newRadioButton = new RadioButton(Questionnaire.this);
                newRadioButton.setId(Integer.parseInt(obj3.get("answerid").toString()));
                newRadioButton.setText(obj3.get("inputname").toString());
                group.addView(newRadioButton);


                lll.addView(group);

            }







        }

    }
    ll.addView(lll);

}

这是我动态添加单选按钮的代码。

问题是当我选择一个选项然后选择另一个选项时，它不会取消选择前一个选项。 当它们都添加到同一个单选组时，为什么它不取消选择第一个选择另一个。当方向设置为水平

时，它不会将单选按钮放置在彼此旁边，而是放置在彼此之上

更新

我移动了我的声明

RadioGroup group = new RadioGroup(Questionnaire.this);
group.setOrientation(RadioGroup.HORIZONTAL); // RadioGroup.HORIZONTAL or RadioGroup.VERTICAL

现在我正在外面父循环

java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.

我该如何处理？

Answer 1

您在 RadioGroup 中仅添加了一个 RadioButton，这就是您选择许多单选按钮的原因。 RadioGroup 至少需要 2 个 RadioButton 才能选中或取消选中效果。

试试这个，希望能成功。

JSONArray jsonQuestion = new JSONArray(obj.get("question").toString());

for (int iii = 0; iii < jsonQuestion.length(); iii++) {
    LinearLayout lll = new LinearLayout(Questionnaire.this);
    lll.setOrientation(LinearLayout.VERTICAL);

    JSONObject obj2 = (JSONObject) jsonQuestion.get(iii);
    System.out.println(obj2.get("question"));

    TextView tv = new TextView(Questionnaire.this);
    tv.setText(obj2.get("question").toString());
    lll.addView(tv);

    JSONArray jsonAnswer = new JSONArray(obj.get("answer").toString());
    Log.d("Reading Answer: ", jsonAnswer + "");

    RadioGroup group = new RadioGroup(Questionnaire.this);
    group.setOrientation(RadioGroup.HORIZONTAL); // RadioGroup.HORIZONTAL or RadioGroup.VERTICAL

   for (int iiii = 0; iiii < jsonAnswer.length(); iiii++) {
        JSONObject obj3 = (JSONObject) jsonAnswer.get(iiii);
        System.out.println(obj2.get("questiosysid").toString().matches(obj3.get("questionid").toString()));
        if (obj2.get("questiosysid").toString().matches(obj3.get("questionid").toString())) {
            TextView tv1 = new TextView(Questionnaire.this);
            tv1.setText(obj3.get("inputname").toString());

            if (obj3.get("inputtype").toString().matches("radio")) {
                RadioButton newRadioButton = new RadioButton(Questionnaire.this);
                newRadioButton.setId(Integer.parseInt(obj3.get("answerid").toString()));
                newRadioButton.setText(obj3.get("inputname").toString());
                group.addView(newRadioButton);
            }
        }
    }
    lll.addView(group);
    ll.addView(lll);
}