Erreur gonflement de la classe RadioButton

Question

Je crée l'application de quiz en utilisant php mysql json parsor, Dans ce qui a couru le programme, il montre "Caused by: android.view.InflateException: Binary XML file line #44: Error inflating class RadioButton" l'erreur sur créer un fichier XML. J'utilise ces codes dans QuizActivity.java Crashlog jetteront l'erreur sur la création vie du contenu et la mise en page gonfleur

public class QuizActivity extends AppCompatActivity { 
private TextView quizQuestion; 
private RadioGroup radioGroup; 
private RadioButton optionOne; 
private RadioButton optionTwo; 
private RadioButton optionThree; 
private RadioButton optionFour; 
private int currentQuizQuestion; 
private int quizCount; 
private QuizWrapper firstQuestion; 
private List<QuizWrapper> parsedObject; 
@Override 
protected void onCreate(Bundle savedInstanceState) 
{ 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_quiz); 
    // setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); quizQuestion = (TextView)findViewById(R.id.quiz_question); 
    radioGroup = (RadioGroup)findViewById(R.id.radioGroup); 
    optionOne = (RadioButton)findViewById(R.id.radio0); 
    optionTwo = (RadioButton)findViewById(R.id.radio1); 
    optionThree = (RadioButton)findViewById(R.id.radio2); 
    optionFour = (RadioButton)findViewById(R.id.radio3); 
    Button previousButton = (Button)findViewById(R.id.previousquiz); 
    Button nextButton = (Button)findViewById(R.id.nextquiz); 
    AsyncJsonObject asyncObject = new AsyncJsonObject(); 
    asyncObject.execute(""); 
    nextButton.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) 
     { 
      int radioSelected = radioGroup.getCheckedRadioButtonId(); 
      int userSelection = getSelectedAnswer(radioSelected); 
      int correctAnswerForQuestion = firstQuestion.getCorrectAnswer(); 
      if(userSelection == correctAnswerForQuestion){ 
       // correct answer 
       Toast.makeText(QuizActivity.this, "You got the answer correct", Toast.LENGTH_LONG).show(); 
       currentQuizQuestion++; 
       if(currentQuizQuestion >= quizCount){ 
        Toast.makeText(QuizActivity.this, "End of the Quiz Questions", Toast.LENGTH_LONG).show(); 
        return; 
       } 
       else{ 
        firstQuestion = parsedObject.get(currentQuizQuestion); 
        quizQuestion.setText(firstQuestion.getQuestion()); 
        String[] possibleAnswers = firstQuestion.getAnswers().split(","); 
        uncheckedRadioButton(); 
        optionOne.setText(possibleAnswers[0]); 
        optionTwo.setText(possibleAnswers[1]); 
        optionThree.setText(possibleAnswers[2]); 
        optionFour.setText(possibleAnswers[3]); 
       } 
      } 
      else{ 
       // failed question 
       Toast.makeText(QuizActivity.this, "You chose the wrong answer", Toast.LENGTH_LONG).show(); 
       return; 
      } 
     } 
    }); 
    previousButton.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      currentQuizQuestion--; 
      if(currentQuizQuestion < 0){ 
       return; 
      } 
      uncheckedRadioButton(); 
      firstQuestion = parsedObject.get(currentQuizQuestion); 
      quizQuestion.setText(firstQuestion.getQuestion()); 
      String[] possibleAnswers = firstQuestion.getAnswers().split(","); 
      optionOne.setText(possibleAnswers[0]); 
      optionTwo.setText(possibleAnswers[1]); 
      optionThree.setText(possibleAnswers[2]); 
      optionFour.setText(possibleAnswers[3]); 
     } 
    }); 
} 

XML:

<RelativeLayout 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=".QuizActivity"> 

<TextView 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="@string/question" 
    android:id="@+id/quiz_question" 
    android:layout_alignParentTop="true" 
    android:layout_marginLeft="10dp" 
    android:layout_marginRight="10dp" 
    android:layout_marginEnd="10dp" 
    android:layout_marginStart="10dp" 
    android:layout_marginTop="20dp" 
    android:textSize="20sp" 
    android:textColor="#000000" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true" /> 

<RadioGroup 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/quiz_question" 
    android:layout_alignLeft="@+id/quiz_question" 
    android:layout_alignStart="@+id/quiz_question" 
    android:layout_marginTop="40dp" 
    android:id="@+id/radioGroup"> 

    <RadioButton 
     android:layout_height="wrap_content" 
     android:layout_width="wrap_content" 
     android:id="@+id/radio0" 
     android:textSize="15sp" 
     android:textColor="#000000" 
     android:text="@string/app_name" 
     android:layout_marginBottom="10dp" 
     android:paddingLeft="20dp" 
     android:button="@drawable/radio_bg" 
     android:checked="false" /> 

    <RadioButton 
     android:layout_height="wrap_content" 
     android:layout_width="wrap_content" 
     android:id="@+id/radio1" 
     android:textSize="15sp" 
     android:textColor="@color/black" 
     android:text="@string/app_name" 
     android:layout_marginBottom="10dp" 
     android:paddingLeft="20dp" 
     android:button="@drawable/radio_bg" 
     android:checked="false" /> 

    <RadioButton 
     android:layout_height="wrap_content" 
     android:layout_width="wrap_content" 
     android:id="@+id/radio2" 
     android:textSize="15sp" 
     android:textColor="@color/black" 
     android:text="@string/app_name" 
     android:layout_marginBottom="10dp" 
     android:paddingLeft="20dp" 
     android:button="@drawable/radio_bg" 
     android:checked="false" /> 

    <RadioButton 
     android:layout_height="wrap_content" 
     android:layout_width="wrap_content" 
     android:id="@+id/radio3" 
     android:textSize="15sp" 
     android:textColor="@color/black" 
     android:text="@string/app_name" 
     android:paddingLeft="20dp" 
     android:button="@drawable/radio_bg" 
     android:checked="false" /> 

    </RadioGroup> 

<Button 
    android:layout_height="wrap_content" 
    android:layout_width="160dp" 
    android:gravity="center" 
    android:id="@+id/nextquiz" 
    android:textColor="@color/white" 
    android:text="@string/next_questions" 
    android:background="@drawable/quizbutton" 
    android:layout_marginRight="10dp" 
    android:padding="5dp" 
    android:layout_alignParentRight="true" 
    android:layout_alignBaseline="@+id/previousquiz"/> 

<Button 
    android:layout_height="wrap_content" 
    android:layout_width="160dp" 
    android:gravity="center" 
    android:id="@+id/previousquiz" 
    android:textColor="@color/white" 
    android:text="@string/previous_questions" 
    android:background="@drawable/quizbutton" 
    android:layout_below="@+id/radioGroup" 
    android:layout_alignLeft="@+id/radioGroup" 
    android:padding="5dp" 
    android:layout_marginTop="20dp" 
    android:layout_alignStart="@+id/radioGroup" /> 

Caused by: android.view.InflateException: Binary XML file line #45: Error inflating class RadioButton 

Answer 1

Je pense que vous avez manqué l'orientation Attribut dans l'élément <RadioGroup>. Essayez,

android:orientation = "vertical" 

dans votre élément < RadioGroup> et puis essayer de nettoyer et reconstruire votre projet.