android studio의 라디오 버튼

Question

라디오 버튼 목록을 갖고 싶습니다. 하나를 선택하고 다음을 클릭하면 어떤 버튼을 눌렀는지에 따라 다른 작업을 수행하고 싶습니다. 현재 일부 테스트 TextView에 대한 텍스트를 설정하려고하고 있으며 모든 라디오 버튼에 대해 -1이라고 표시됩니다.

import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.Button; 
import android.widget.RadioButton; 
import android.*; 
import android.widget.RadioGroup; 
import android.widget.TextView; 

public class Polynomials extends Fragment { 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 

     final View polyView = inflater.inflate(R.layout.fragment_poly, container, false); 

     //layout 
     RadioGroup rbg = (RadioGroup) polyView.findViewById(R.id.rBGPoly); 
     Button next = (Button) polyView.findViewById(R.id.polyButton); 
     final TextView test = (TextView) polyView.findViewById(R.id.jdtTest); 
     final RadioButton but1 = (RadioButton) polyView.findViewById(R.id.radioButton1); 
     RadioButton but2 = (RadioButton) polyView.findViewById(R.id.radioButton2); 
     RadioButton but3 = (RadioButton) polyView.findViewById(R.id.radioButton3); 
     RadioButton but4 = (RadioButton) polyView.findViewById(R.id.radioButton4); 
     RadioButton but5 = (RadioButton) polyView.findViewById(R.id.radioButton5); 
     RadioButton but6 = (RadioButton) polyView.findViewById(R.id.radioButton6); 
     RadioButton but7 = (RadioButton) polyView.findViewById(R.id.radioButton7); 






     RadioGroup g = (RadioGroup)polyView.findViewById(R.id.rBGPoly); 


     final int selected = g.getCheckedRadioButtonId(); 



     next.setOnClickListener(new View.OnClickListener() { 
      public void onClick(View v) { 

test.setText(""+selected); 

      } 
     }); 










     return polyView; 
    } 



} 

이 내 XML입니다 : 현재을 radioGroup에 버튼 ID를 왜 그래 선택 돌려주는 다음 버튼 클릭에

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/jdttae" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 

    android:orientation="vertical" > 

    <TextView 
     android:id="@+id/jdtchoose" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentTop="true" 
     android:layout_centerHorizontal="true" 
     android:layout_marginTop="31dp" 
     android:text="How many terms?" 
     android:textSize="18sp" /> 

    <RadioGroup android:id="@+id/rBGPoly" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:orientation="vertical"> 

     <RadioButton 
      android:id="@+id/radioButton1" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_marginTop="90dp" 
      android:layout_marginLeft="180dp" 
      android:text="1" 
      android:layout_below="@+id/jdtchoose" 
      android:layout_alignLeft="@+id/jdtchoose" 

      />/> 

     <RadioButton 
      android:id="@+id/radioButton2" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="2" 
      android:layout_marginLeft="180dp" 
      android:layout_marginTop="31dp" 
      android:layout_below="@+id/radioButton1" 
      android:layout_alignLeft="@+id/radioButton1" 
      />/> 

     <RadioButton 
      android:id="@+id/radioButton3" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="3" 
      android:layout_marginLeft="180dp" 
      android:layout_marginTop="31dp" 
      android:layout_below="@+id/radioButton2" 
      android:layout_alignLeft="@+id/radioButton2" 
      />/> 

     <RadioButton 
      android:id="@+id/radioButton4" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_marginTop="31dp" 
      android:layout_marginLeft="180dp" 
      android:text="4" 
      android:layout_below="@+id/radioButton3" 
      android:layout_alignLeft="@+id/radioButton3" 
      />/> 


     <RadioButton 
     android:id="@+id/radioButton5" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="31dp" 
      android:layout_marginLeft="180dp" 
     android:text="5" 
     android:layout_below="@+id/radioButton4" 
     android:layout_alignLeft="@+id/radioButton4" 
     />/> 







    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="6" 
     android:layout_marginLeft="180dp" 
     android:id="@+id/radioButton6" 
     android:layout_below="@+id/radioButton5" 
     android:layout_alignLeft="@+id/radioButton5" 
     android:layout_marginTop="31dp" 
     />/> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="7" 
     android:layout_marginLeft="180dp" 
     android:id="@+id/radioButton7" 
     android:layout_below="@+id/radioButton6" 
     android:layout_alignParentBottom="false" 
     android:layout_alignLeft="@+id/radioButton6" 
     android:layout_marginTop="31dp" 
     android:checked="false" 
     />/> 

    </RadioGroup> 
    <Button 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Next" 
     android:id="@+id/polyButton" 
     android:layout_alignParentBottom="true" 
     android:layout_alignLeft="@+id/jdtchoose" 
     android:layout_marginBottom="26dp" 
     android:layout_alignRight="@+id/jdtchoose" /> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Test" 
     android:id="@+id/jdtTest" 
     android:editable="false" 
     android:textSize="18sp" 
     android:layout_alignBaseline="@+id/polyButton" 
     android:layout_alignBottom="@+id/polyButton" 
     android:layout_toLeftOf="@+id/polyButton" 
     android:layout_marginRight="47dp" /> 

</RelativeLayout> 

Answer 1

전화 g.getCheckedRadioButtonId :

  public void onClick(View v) { 
      int selected = g.getCheckedRadioButtonId(); 

      test.setText(String.valueof(selected)); 

      }