Question

我正在尝试为自闭症儿童进行测验。我想使用图片来寻找答案或更好的选择，例如带有https://gyazo.com/2309e055184a4840c23a07bda0a5bf63这样的图片的按钮。我的应用程序可以运行，但是当我进行测验时，我无法获得正确的答案，只有错误。似乎if语句不起作用。我需要四个静态答案，并且只更改ImageView。我不知道该怎么办。

public class Category2 extends AppCompatActivity{

    private database2 database2 = new database2();
    private ImageButton imageChoice1,imageChoice2,imageChoice3,imageChoice4;
    ImageView iv_Pic;
    private Button imageAnswerSpace;
    int quizCount = 0;
    int rightAnswerCount = 0;
    private int mAnswer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_category2);

        iv_Pic = (ImageView) findViewById(R.id.iv_Pic);
        imageChoice1 = (ImageButton) findViewById(R.id.imageview1);
        imageChoice2 = (ImageButton) findViewById(R.id.imageview2);
        imageChoice3 = (ImageButton) findViewById(R.id.imageview3);
        imageChoice4 = (ImageButton) findViewById(R.id.imageview4);

        newQ();  

        imageChoice1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {    
                if (v.getId() == R.id.imageview1 && (v.getId() == mAnswer)) {
                    Toast.makeText(Category2.this, "correct", Toast.LENGTH_SHORT).show();
                    newQ();
                } else {
                    Toast.makeText(Category2.this, "wrong", Toast.LENGTH_SHORT).show();
                    newQ();
                }
            }
        });

        imageChoice2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (v.getId() == R.id.imageview2 &&  (v.getId()== mAnswer)){
                    Toast.makeText(Category2.this, "correct", Toast.LENGTH_SHORT).show();
                    newQ();
                } else {
                    Toast.makeText(Category2.this, "wrong", Toast.LENGTH_SHORT).show();
                    newQ();
                }
            }
        });

        imageChoice3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (v.getId() == R.id.imageview3 && (v.getId()== mAnswer)) {
                    Toast.makeText(Category2.this, "correct", Toast.LENGTH_SHORT).show();    
                    newQ();
                } else {
                    Toast.makeText(Category2.this, "wrong", Toast.LENGTH_SHORT).show();
                    newQ();
                }
            }
        });

        imageChoice4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (v.getId() == R.id.imageview4 && (v.getId()== mAnswer)) {
                    Toast.makeText(Category2.this, "correct", Toast.LENGTH_SHORT).show();
                    newQ();
                } else {
                    Toast.makeText(Category2.this, "wrong", Toast.LENGTH_SHORT).show();
                    newQ();
                }
            }
        });
    }

    public void newQ() {

        iv_Pic.setImageResource(database2.getImages(quizCount));

        ImageView changeImage0 = findViewById(R.id.imageview1);
        changeImage0.setImageResource(database2.getChoice1(quizCount));

        ImageView changeImage1 = findViewById(R.id.imageview2);                    
        changeImage1.setImageResource(database2.getChoice2(quizCount));

        ImageView changeImage3 = findViewById(R.id.imageview3);        
        changeImage3.setImageResource(database2.getChoice3(quizCount));

        ImageView changeImage4 = findViewById(R.id.imageview4);
        changeImage4.setImageResource(database2.getChoice4(quizCount));

        mAnswer = database2.getCorrectAnswer(quizCount);

        if (quizCount < 4) {
            quizCount++;
        } else if (quizCount == 4) {
            quizCount = 0;
        }
    }
}

public class database2 {

    private Integer mImages[] = {
        R.drawable.sad,
        R.drawable.happy,
        R.drawable.fear,
        R.drawable.angry,
    };
    public static int mChoices[] [] = {
        {
           R.drawable.ic_angry,
           R.drawable.ic_sad,
           R.drawable.ic_scared,
           R.drawable.ic_smiling
        }, {
           R.drawable.ic_angry,
           R.drawable.ic_sad,
           R.drawable.ic_scared,
           R.drawable.ic_smiling
       }, {
           R.drawable.ic_angry,
           R.drawable.ic_sad,
           R.drawable.ic_scared,
           R.drawable.ic_smiling
        }, {
           R.drawable.ic_angry,
           R.drawable.ic_sad,
           R.drawable.ic_scared,
           R.drawable.ic_smiling
        }
    };

    private Integer mCorrectAnswer[] = {
        R.drawable.ic_sad,
        R.drawable.ic_smiling,
        R.drawable.ic_scared,
        R.drawable.ic_angry
    };

    public Integer getImages(int a){
        Integer image = mImages[a];
        return image;
    }
    public Integer getChoice1(int a){
        int choice0 = mChoices[a][0];
        return choice0;
    }
    public Integer getChoice2(int a){
        int choice1 = mChoices[a][1];
        return choice1;
    }
    public Integer getChoice3(int a){
        int choice2 = mChoices[a][2];
        return choice2;
    }
    public Integer getChoice4(int a){
        int choice3 = mChoices[a][3];
        return choice3;
    }

    public Integer getCorrectAnswer(int a){
        Integer answer = mCorrectAnswer[a];
        return answer;
    }
}

Answer 1

您总是看到“错误”答案的原因是，您正在将视图ID与onClick侦听器中的可绘制ID进行比较。 v.getId()== mAnswer。 mAnswer是其中之一

private Integer mCorrectAnswer[] ={
        R.drawable.ic_sad,
        R.drawable.ic_smiling,
        R.drawable.ic_scared,
        R.drawable.ic_angry
};

而v.getId（）是

之一

R.id.imageview1
R.id.imageview2
R.id.imageview3
R.id.imageview4

作为一种短期解决方案，您可以将mCorrectAnswer更改为使用ImageView id而不是可绘制的id。但是，这可能很难维护，因此最好使用不依赖于资源ID的不同逻辑。

Answer 2

答案数组应类似于：

private Integer mCorrectAnswer[] ={
    R.id.ic_sad,
    R.id.ic_smiling,
    R.id.ic_scared,
    R.id.ic_angry
};

，它必须与mCorrectAnswer.get(quizCount)进行比较。

测验图片答案

2 个答案: