片段内的单选按钮OnCheckedChangeListener错误

我在收音机组应用程序崩溃时调用onCheckedCahngedListener片段内部时遇到了一些问题。当点击收音机组内的任何项目时，应用程序崩溃。片段内的单选按钮OnCheckedChangeListener错误

fragment_sell.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" 
android:layout_height="match_parent" 
tools:context="com.example.syedsaadali.myapplication.SellFragment" 
android:orientation="vertical"> 

<HorizontalScrollView 
    android:id="@+id/scrollView" 
    android:layout_width="wrap_content" 
    android:layout_height="75dp" 
    android:layout_gravity="center" 
    android:background="#FFFFFF" 
    android:fillViewport="true" 
    android:measureAllChildren="false" 
    android:scrollbars="none"> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 

     <RadioGroup 
      android:id="@+id/RadioButton1" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:orientation="horizontal" 
      android:checkedButton="@+id/first" 
      > 

     <RadioButton 
      android:id="@+id/sApartment" 
      android:layout_width="100dp" 
      android:layout_height="fill_parent" 
      android:button="@drawable/apartment" 
      android:padding="15dp" 
      android:onClick="apartment"/> 


     <TextView 
      android:layout_width="0.2dp" 
      android:layout_height="fill_parent" 
      android:layout_alignParentRight="true" 
      android:background="@mipmap/vertical" /> 

     <RadioButton 
      android:id="@+id/sBuilder" 
      android:layout_width="100dp" 
      android:layout_height="fill_parent" 
      android:button="@drawable/house" 
      android:padding="15dp" 
      android:onClick="house"/> 

     <TextView 
      android:layout_width="0.2dp" 
      android:layout_height="fill_parent" 
      android:layout_alignParentRight="true" 
      android:background="@mipmap/vertical" /> 

     <RadioButton 
      android:id="@+id/sPlot" 
      android:layout_width="100dp" 
      android:layout_height="fill_parent" 
      android:layout_gravity="center" 
      android:button="@drawable/land" 
      android:padding="15dp" 
      android:onClick="land"/> 

     <TextView 
      android:layout_width="0.2dp" 
      android:layout_height="fill_parent" 
      android:layout_alignParentRight="true" 
      android:background="@mipmap/vertical" /> 

     <RadioButton 
      android:id="@+id/sHouse" 
      android:layout_width="100dp" 
      android:layout_height="match_parent" 
      android:button="@drawable/builder" 
      android:padding="15dp" 
      android:onClick="builder"/> 

     <TextView 
      android:layout_width="0.2dp" 
      android:layout_height="fill_parent" 
      android:layout_alignParentRight="true" 
      android:background="@mipmap/vertical" /> 

     <RadioButton 
      android:id="@+id/sStudioApartment" 
      android:layout_width="100dp" 
      android:layout_height="fill_parent" 
      android:button="@drawable/farmhouse" 
      android:padding="15dp" 
      android:onClick="farmhouse"/> 

     <TextView 
      android:layout_width="0.2dp" 
      android:layout_height="fill_parent" 
      android:layout_alignParentRight="true" 
      android:background="@mipmap/vertical" /> 


     <RadioButton 
      android:id="@+id/sFarmHouse" 
      android:layout_width="100dp" 
      android:layout_height="fill_parent" 
      android:button="@drawable/serviceapartment" 
      android:padding="15dp" 
      android:onClick="servicedapartment"/> 

     <TextView 
      android:layout_width="0.2dp" 
      android:layout_height="fill_parent" 
      android:layout_alignParentRight="true" 
      android:background="@mipmap/vertical" /> 

     <RadioButton 
      android:id="@+id/sServicedApartment" 
      android:layout_width="100dp" 
      android:layout_height="fill_parent" 
      android:button="@drawable/studioapartment" 
      android:padding="15dp" 
      android:onClick="studioapartment"/> 

     <TextView 
      android:layout_width="0.2dp" 
      android:layout_height="fill_parent" 
      android:layout_alignParentRight="true" 
      android:background="@mipmap/vertical" /> 


     </RadioGroup> 



    </LinearLayout> 

</HorizontalScrollView>

SellFragment.java

public class SellFragment extends Fragment { 
// TODO: Rename parameter arguments, choose names that match 
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER 
private static final String ARG_PARAM1 = "param1"; 
private static final String ARG_PARAM2 = "param2"; 

// TODO: Rename and change types of parameters 
private String mParam1; 
private String mParam2; 

private OnFragmentInteractionListener mListener; 

private RadioGroup mRadioGroup1; 
private RadioButton mapartment; 
private RadioButton mBuilder; 
private RadioButton mplot; 
private RadioButton mHouse; 
private RadioButton mStudioApartment; 
private RadioButton mFarmhouse; 
private RadioButton mServicedApartment; 

private Spinner city; 
private View layout; 

public static SellFragment newInstance(String param1, String param2) { 
    SellFragment fragment = new SellFragment(); 
    Bundle args = new Bundle(); 
    args.putString(ARG_PARAM1, param1); 
    args.putString(ARG_PARAM2, param2); 
    fragment.setArguments(args); 
    return fragment; 
} 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    if (getArguments() != null) { 
     mParam1 = getArguments().getString(ARG_PARAM1); 
     mParam2 = getArguments().getString(ARG_PARAM2); 
    } 


} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    // Inflate the layout for this fragment 
    layout = inflater.inflate(R.layout.fragment_sell, container, false); 


    mRadioGroup1=(RadioGroup) layout.findViewById(R.id.RadioButton1); 
    mapartment=(RadioButton)layout.findViewById(R.id.sApartment); 
    mBuilder=(RadioButton)layout.findViewById(R.id.sBuilder); 
    mplot=(RadioButton)layout.findViewById(R.id.sPlot); 
    mHouse=(RadioButton)layout.findViewById(R.id.sHouse); 
    mStudioApartment=(RadioButton)layout.findViewById(R.id.sStudioApartment); 
    mFarmhouse=(RadioButton)layout.findViewById(R.id.sFarmHouse); 
    mServicedApartment=(RadioButton)layout.findViewById(R.id.sServicedApartment); 

    mRadioGroup1.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { 


     @Override 

     public void onCheckedChanged(RadioGroup group, int checkedId) { 

      if (checkedId == R.id.sApartment) { 
       Toast.makeText(getActivity(), "Sell Fragment", Toast.LENGTH_SHORT).show(); 


      } else if (checkedId == R.id.sBuilder) { 
       Toast.makeText(getActivity(), "Sell Fragment", Toast.LENGTH_SHORT).show(); 


      } 
      else if (checkedId == R.id.sPlot) { 
       Toast.makeText(getActivity(), "Sell Fragment", Toast.LENGTH_SHORT).show(); 

      } 
      else if (checkedId == R.id.sHouse) { 

       Toast.makeText(getActivity(), "Sell Fragment", Toast.LENGTH_SHORT).show(); 
      } 
      else if (checkedId == R.id.sStudioApartment) { 

       Toast.makeText(getActivity(), "Sell Fragment", Toast.LENGTH_SHORT).show(); 
      } 
      else if (checkedId == R.id.sFarmHouse) { 
       Toast.makeText(getActivity(), "Sell Fragment", Toast.LENGTH_SHORT).show(); 

      } 
      else if (checkedId == R.id.cServicedApartment) { 

       Toast.makeText(getActivity(), "Sell Fragment", Toast.LENGTH_SHORT).show(); 
      } 


     } 

    }); 

    return layout; 
} 

public void onButtonPressed(Uri uri) { 
    if (mListener != null) { 
     mListener.onFragmentInteraction(uri); 
    } 
} 

@Override 
public void onAttach(Context context) { 
    super.onAttach(context); 
} 

@Override 
public void onDetach() { 
    super.onDetach(); 
    mListener = null; 
} 
@Override 
public void onDetach() { 
    super.onDetach(); 
    mListener = null; 
} 

public interface OnFragmentInteractionListener { 
    // TODO: Update argument type and name 
    public void onFragmentInteraction(Uri uri); 
}}

的logcat：

03-23 02:50:57.703 4697-4697/com.example.syedsaadali.myapplication E/AndroidRuntime﹕ FATAL EXCEPTION: main 
Process: com.example.syedsaadali.myapplication, PID: 4697 
java.lang.IllegalStateException: Could not find method apartment(View) in a parent or ancestor Context for android:onClick attribute defined on view class android.support.v7.widget.AppCompatRadioButton with id 'cApartment' 
     at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.resolveMethod(AppCompatViewInflater.java:307) 
     at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:266) 
     at android.view.View.performClick(View.java:4780) 
     at android.widget.CompoundButton.performClick(CompoundButton.java:120) 
     at android.view.View$PerformClick.run(View.java:19866) 
     at android.os.Handler.handleCallback(Handler.java:739) 
     at android.os.Handler.dispatchMessage(Handler.java:95) 
     at android.os.Looper.loop(Looper.java:135) 
     at android.app.ActivityThread.main(ActivityThread.java:5254) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:372) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

来源

2016-03-23 Asad Ali

您已经定义<RadioButton ... android:onClick="apartment"/>在XML但在Activity中未创建任何方法apartment。

要解决此要么删除onClick属性（如果音符需要）或创建的Java方法apartment以及像

public void apartment(View view){ 

}

您可以直接点击Alt键在onClick属性 + 输入XML通过创建方法来获得解决此错误的提示。

来源

2016-03-23 07:01:14

片段内的单选按钮OnCheckedChangeListener错误

回答

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