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我正在尝试为线性布局制作一个动态单选按钮。我有两个从列表调用并添加到线性布局的单选按钮。一切都很好，直到我看不好我的单选按钮并被这个布局卡住了。我的问题是为什么我的单选按钮布局根本不起作用？
这是我的代码：

TextView label;
RadioButton[] rb;
RadioGroup radiogroup;
LinearLayout ll;
String title;

public MyBtn(Context context,String labelText,String options) {
   super(context);

   ll = new LinearLayout(context);
   ll.setOrientation(LinearLayout.VERTICAL);

   LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
       LayoutParams.FILL_PARENT,
       LayoutParams.WRAP_CONTENT);

   ll.setLayoutParams(params);

   label = new TextView(context);
   label.setText(labelText);
   label.setTextColor(getResources().getColor(R.color.label_color));

   radiogroup = new RadioGroup(context);
   radiogroup.setOrientation(RadioGroup.HORIZONTAL);

   radiogroup.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

   LinearLayout.LayoutParams [] rbLayout = new RadioGroup.LayoutParams[2]; 

   LinearLayout.LayoutParams  rbParam = new RadioGroup.LayoutParams(
         RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT);
   rbParam.weight = 1f;
   rbParam.gravity = Gravity.CENTER | Gravity.LEFT;

   LinearLayout.LayoutParams  rbParam2 = new RadioGroup.LayoutParams(
         RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT);
   rbParam2.gravity = Gravity.CENTER | Gravity.RIGHT;
   rbParam2.weight = 1f;

   rbLayout[0] = new RadioGroup.LayoutParams(rbParam);                  
   rbLayout[1] = new RadioGroup.LayoutParams(rbParam2);

   List<String> list = Arrays.asList(options.split("\\|"));
   String[] opts = new String[list.size()];
   list.toArray(opts);

   rb = new RadioButton[list.size()];

   for (int i = 0; i < list.size(); i++) {
      rb[i] = new RadioButton(context);
      rb[i].setText(opts[i]);
      rb[i].setId(i);
      radiogroup.addView(rb[i],rbLayout[i]);         
   }

   title = label.getText().toString();

   radiogroup.check(0);

   ll.addView(label);
   ll.addView(radiogroup);

   //int resID = getResources().getIdentifier(buttonID, "id", context.getPackageName());  

   this.addView(ll); 
}

谢谢你。

我的单选按钮：
图片链接

它应该：
图片链接

4

1 回答 1

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改变这个：

LinearLayout.LayoutParams [] rbLayout = new RadioGroup.LayoutParams[2];
LinearLayout.LayoutParams  rbParam2 = new RadioGroup.LayoutParams(
     RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT);

对此：

RadioGroup.LayoutParams [] rbLayout = new RadioGroup.LayoutParams[2];
RadioGroup.LayoutParams  rbParam2 = new RadioGroup.LayoutParams(
     RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT);

您的代码中有许多相同的错误。找出它们并纠正让我知道结果

LinearLayout.LayoutParams  rbParam = new RadioGroup.LayoutParams(
     RadioGroup.LayoutParams.FILL_PARENT, RadioGroup.LayoutParams.WRAP_CONTENT,1f);

那一定行得通。让我知道

于 2012-07-19T06:55:50.647 回答