Question

public class MCQSample extends Activity implements OnClickListener{

    TextView title;
    String gotBread;
    RadioGroup AnswerRG;
    int value ;
    int value1;



    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mcqsample); 
        title = (TextView) findViewById(R.id.abc);
        nextP = (Button) findViewById(R.id.nextP);
        backP = (Button) findViewById(R.id.backP);
        AnswerRG = (RadioGroup) findViewById(R.id.AnswerRG);


            Bundle b = getIntent().getExtras();
            value = b.getInt("key", 0);

        }
    }

大家好，我正在做Android应用程序并坚持创建动态单选按钮。因为我不知道我需要多少按钮（这取决于值 - 用户输入）。我读了一些可以在Layout上添加的帖子，但我想添加到radioGroup中。有什么办法吗？感谢

Answer 1

步骤1：通过其构造函数创建一个新的RadioButton并根据需要进行配置。

步骤2：致电addView()上的RadioGroup，向其添加RadioButton。

步骤3：没有第3步

Answer 2

尝试这种方式在RadioGroup中添加单选按钮：

private final int WC = RadioGroup.LayoutParams.WRAP_CONTENT;
RadioGroup.LayoutParams rParams;
AnswerRG = (RadioGroup) findViewById(R.id.AnswerRG);

RadioButton radioButton = new RadioButton(this);
radioButton.setText("Yellow");
radioButton.setId(1001);//set radiobutton id and store it somewhere
rParams = new RadioGroup.LayoutParams(WC, WC);
AnswerRG.addView(radioButton, rParams);

将动态单选按钮添加到RadioGroup

2 个答案: