在父代或祖先中找不到方法onRadioButtonClicked（查看）

Question

這只是一個基本的Q &一個應用程序。 我試圖在應用界面上按radiobutton時出現錯誤。 這裏是我的主類：

public class Balance extends AppCompatActivity { 

private int score = 0; //answer score 
private int PreviousScore; 
private int i = 0; 
private Vibrator myVib; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_balance); 

    final TextView Score = (TextView) findViewById(R.id.Score); 
    Button b = (Button)findViewById(R.id.button); //button 

    myVib = (Vibrator) this.getSystemService(VIBRATOR_SERVICE); 


    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
    setSupportActionBar(toolbar); 


    question(); //call params for question 

    //button listener, when button clicked, produce output on textfield "Score" 
    b.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      myVib.vibrate(70); 
      PreviousScore = score; 

      //Score.setText(String.valueOf(action())); 
      //Score.setText(score); 
      i++; 
      question(); 

      RadioGroup mRadioGroup = (RadioGroup) findViewById(R.id.radioGroup); 
      mRadioGroup.clearCheck(); 

     } 

    }); 




} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_balance, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 

    //noinspection SimplifiableIfStatement 
    if (id == R.id.action_settings) { 
     return true; 
    } 

    return super.onOptionsItemSelected(item); 
} 


private void question(){ 
//basically assigning strings to radiobuttons here 
} 


private void onRadioButtonClicked(View view) { 
    // Is the button now checked? 
    boolean checked = ((RadioButton) view).isChecked(); 

    myVib.vibrate(50); 

    // Check which radio button was clicked 

    switch(view.getId()) { 
     case R.id.AnswerA: 
      if (checked) 
       score = PreviousScore + 0; 
      break; 
     case R.id.AnswerB: 
      if (checked) 
       score = PreviousScore + 1; 
      break; 
     case R.id.AnswerC: 
      if (checked) 
       score = PreviousScore + 2; 
      break; 
    } 
} 

private String action(){ 

    String action = null; 
    if (score <= 16) 
     action= "Low Risk"; 
    else if(score > 16 & score <= 32) 
     action = "Medium Risk"; 
    else if(score > 32 & score <= 48) 
     action = "High Risk"; 
    else if(score > 48 & score <= 64) 
     action = "Very High Risk"; 

    return action; 
} 


} 

這裏是我的內容視圖

<TextView 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textAppearance="?android:attr/textAppearanceLarge" 
    android:text="Large Text" 
    android:id="@+id/Question" 
    android:layout_alignParentTop="true" 
    android:layout_centerHorizontal="true" /> 

<Button 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="Submit" 
    android:id="@+id/button" 
    android:layout_marginBottom="132dp" 
    android:layout_alignParentBottom="true" 
    android:layout_centerHorizontal="true" /> 

<TextView 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textAppearance="?android:attr/textAppearanceLarge" 
    android:id="@+id/Score" 
    android:text="score goes here" 
    android:layout_above="@+id/radioGroup" 
    android:layout_centerHorizontal="true" 
    android:textSize="30dp" /> 

<RadioGroup xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:orientation="vertical" 
    android:id="@+id/radioGroup" 
    android:layout_above="@+id/button" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true"> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="New RadioButton" 
     android:id="@+id/AnswerA" 
     android:layout_below="@+id/Question" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentStart="true" 
     android:layout_marginTop="41dp" 
     android:checked="false" 
     android:onClick="onRadioButtonClicked"/> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="New RadioButton" 
     android:id="@+id/AnswerB" 
     android:layout_below="@+id/AnswerA" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentStart="true" 
     android:checked="false" 
     android:onClick="onRadioButtonClicked"/> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="New RadioButton" 
     android:id="@+id/AnswerC" 
     android:layout_below="@+id/AnswerB" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentStart="true" 
     android:checked="false" 
     android:onClick="onRadioButtonClicked"/> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="New RadioButton" 
     android:id="@+id/AnswerD" 
     android:layout_below="@+id/AnswerC" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentStart="true" 
     android:checked="false" 
     android:onClick="onRadioButtonClicked"/> 
</RadioGroup> 

<Button 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="Next Text" 
    android:id="@+id/Next_Text" 
    android:layout_below="@+id/radioGroup" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="58dp" /> 

<TextView 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textAppearance="?android:attr/textAppearanceSmall" 
    android:text="Small Text" 
    android:id="@+id/currentscore" 
    android:layout_below="@+id/Next_Text" 
    android:layout_alignParentRight="true" 
    android:layout_alignParentEnd="true" /> 

的logcat：

02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime: FATAL EXCEPTION: main 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime: Process: com.example.user.tinetti, PID: 9082 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime: java.lang.IllegalStateException: Could not find method onRadioButtonClicked(View) in a parent or ancestor Context for android:onClick attribute defined on view class android.support.v7.widget.AppCompatRadioButton with id 'AnswerB' 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.support.v7.internal.app.AppCompatViewInflater$DeclaredOnClickListener.resolveMethod(AppCompatViewInflater.java:310) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.support.v7.internal.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:269) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.view.View.performClick(View.java:5198) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.widget.CompoundButton.performClick(CompoundButton.java:122) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.view.View$PerformClick.run(View.java:21147) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.os.Handler.handleCallback(Handler.java:739) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.os.Handler.dispatchMessage(Handler.java:95) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.os.Looper.loop(Looper.java:148) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at android.app.ActivityThread.main(ActivityThread.java:5417) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Native Method) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
02-20 14:14:46.484 9082-9082/com.example.user.tinetti E/AndroidRuntime:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

Answer 1

您必須設置屬性的OnClick所有單選按鈕.Android正在觸發一個事件可能是當你點擊單選按鈕。它無法找到onClick方法。它可能是在最近的版本（API 23）。它是我的實際答案 android：onClick =「onRadioButtonClicked」將此添加到您的單選按鈕對彼此而言。 在您的活動中定義一個onRadioButtonClicked方法，該方法鏈接到您的佈局。

Answer 2

你必須設置private void onRadioButtonClicked到public void onRadioButtonClicked