Comment puis-je comparer des images

Question

Je développe une application de test à choix multiples dans laquelle j'utilise des images comme des questions et répond au problème ici, c'est que je ne sais pas comment comparer les images de tableau. Dans la méthode onclick je compare le choix cliqué avec la bonne réponse stockée dans le tableau mais son ne fonctionne même pas utilisé setTag et getTag méthodes pour les choix je ne sais pas quel est le problème avec le code que j'ai tout essayé.

s'il vous plaît ne pas downvote la question si vous ne voulez pas y répondre.

Voici mon code.

public class counting extends AppCompatActivity { 
    ImageView choice_one, choice_two, choice_three, choice_four; 
    ImageView question; 
    MediaPlayer mp; 
    private Questions mQuestions = new Questions(); 
    private int mAnswer; 
    private int mQuestionsLength = mQuestions.mQuestions.length; 

    Random r; 

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

     r = new Random(); 

     choice_one=(ImageView)findViewById(R.id.choice_1); 
     choice_two=(ImageView)findViewById(R.id.choice_2); 
     choice_three=(ImageView)findViewById(R.id.choice_3); 
     choice_four=(ImageView)findViewById(R.id.choice_4); 

     choice_one.setTag(1); 
     choice_two.setTag(2); 
     choice_three.setTag(3); 
     choice_four.setTag(4); 

     question=(ImageView)findViewById(R.id.question); 

     updateQuestions(r.nextInt(mQuestionsLength)); 

     choice_one.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       if(getImageResource(choice_one) == mAnswer){ 
        mp=MediaPlayer.create(counting.this,R.raw.bird); 
        mp.start(); 
        updateQuestions(r.nextInt(mQuestionsLength)); 
       }else{ 
        mp=MediaPlayer.create(counting.this,R.raw.april); 
        mp.start(); 
       } 
      } 
     }); 

     choice_two.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       if(getImageResource(choice_two) == mAnswer){ 
        mp=MediaPlayer.create(counting.this,R.raw.bird); 
        mp.start(); 
        updateQuestions(r.nextInt(mQuestionsLength)); 
       }else{ 
        mp=MediaPlayer.create(counting.this,R.raw.april); 
        mp.start(); 
       } 
      } 
     }); 

     choice_three.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       if(getImageResource(choice_three) == mAnswer){ 
        mp=MediaPlayer.create(counting.this,R.raw.bird); 
        mp.start(); 
        updateQuestions(r.nextInt(mQuestionsLength)); 
       }else{ 
        mp=MediaPlayer.create(counting.this,R.raw.april); 
        mp.start(); 
       } 
      } 
     }); 

     choice_four.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       if(getImageResource(choice_four) == mAnswer){ 
        mp=MediaPlayer.create(counting.this,R.raw.bird); 
        mp.start(); 
        updateQuestions(r.nextInt(mQuestionsLength)); 
       }else{ 
        mp=MediaPlayer.create(counting.this,R.raw.april); 
        mp.start(); 
       } 
      } 
     }); 
    } 

    private int getImageResource(ImageView iv){ 
     return (Integer)iv.getTag(); 
    } 

    private void updateQuestions(int num){ 
     question.setImageResource(mQuestions.getQuestion(num)); 
     choice_one.setImageResource(mQuestions.getChoice1(num)); 
     choice_two.setImageResource(mQuestions.getChoice2(num)); 
     choice_three.setImageResource(mQuestions.getChoice3(num)); 
     choice_four.setImageResource(mQuestions.getChoice4(num)); 

     mAnswer = mQuestions.getAnswer(num); 
    } 
} 

classe question:

public class Questions { 
    public int mQuestions[]={ 
     R.drawable.onee, R.drawable.twoe, R.drawable.threee, R.drawable.foure, R.drawable.sixe, R.drawable.eighte 
    }; 

    public int mChoices[][]={ 
     {R.drawable.counting_one, R.drawable.counting_two, R.drawable.counting_three, R.drawable.counting_four}, 
     {R.drawable.counting_one, R.drawable.counting_two, R.drawable.counting_three, R.drawable.counting_four}, 
     {R.drawable.counting_one, R.drawable.counting_two, R.drawable.counting_three, R.drawable.counting_four}, 
     {R.drawable.counting_one, R.drawable.counting_two, R.drawable.counting_three, R.drawable.counting_four}, 
     {R.drawable.counting_one, R.drawable.counting_two, R.drawable.counting_six, R.drawable.counting_four}, 
     {R.drawable.counting_one, R.drawable.counting_eight, R.drawable.counting_three, R.drawable.counting_four} 

    }; 

    public int mAnswers[]= 
{R.drawable.counting_one,R.drawable.counting_two,R.drawable.counting_three, 
     R.drawable.counting_four, R.drawable.counting_six, R.drawable.counting_eight}; 

    public int getQuestion(int a){ 
     int question = mQuestions[a]; 
     return question; 
    } 

    public int getChoice1(int a){ 
     int choice = mChoices[a][0]; 
     return choice; 
    } 

    public int getChoice2(int a){ 
     int choice = mChoices[a][1]; 
     return choice; 
    } 

    public int getChoice3(int a){ 
     int choice = mChoices[a][2]; 
     return choice; 
    } 

    public int getChoice4(int a){ 
     int choice = mChoices[a][3]; 
     return choice; 
    } 

    public int getAnswer(int a){ 
     int answer = mAnswers[a]; 
     return answer; 
    } 
} 

Answer 1

Vous faites mal dans la comparaison

getImageResource(choice_one) == mAnswer 

Vous comparez ressource Id tag que vous avez fourni (1,2,3,4) . C'est faux.

Vous pouvez le faire de cette façon: -

private void updateQuestions(int num){ 
     question.setImageResource(mQuestions.getQuestion(num)); 
     question. setTag(mQuestions.getQuestion(num)); 
     choice_one.setImageResource(mQuestions.getChoice1(num)); 
     choice_one.setTag(mQuestions.getChoice1(num)); 
     choice_two.setImageResource(mQuestions.getChoice2(num)); 
     choice_two.setTag(mQuestions.getChoice2(num)); 
     choice_three.setImageResource(mQuestions.getChoice3(num)); 
     choice_three.setTag(mQuestions.getChoice3(num)); 
     choice_four.setImageResource(mQuestions.getChoice4(num)); 
     choice_four.setTag(mQuestions.getChoice4(num)); 

     mAnswer = mQuestions.getAnswer(num); 
    } 

Supprimez les balises (ci-dessous le code) que vous avez fourni et essayer

 choice_one.setTag(1); 
     choice_two.setTag(2); 
     choice_three.setTag(3); 
     choice_four.setTag(4);