java - Wrap_Content 带有服装单选按钮？

Question

我制作了一个测验应用程序，但我遇到了单选按钮的问题。我创建了一个圆形背景并将其设置为我的单选按钮背景。但是，背景不会随着单选按钮内的文本量而放大。

这是一张图片

我无法发布信誉度低于 10 的图片。 /image/sVrfd.jpg

我在这里发表的第一篇文章，因此请原谅我的任何错误格式。预先感谢您的建议!!

这是我的圆形按钮和 quiz.xml 的 XML 代码

rounded_option.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
            <solid android:color="@android:color/holo_orange_light" />
            <corners android:radius="150dp" />
        </shape>
    </item>
</selector>

测验.xml

<RadioGroup
        android:id="@+id/radio_group"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/text_view_question"
        tools:ignore="RelativeOverlap">


        <RadioButton
            android:id="@+id/radio_button1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="25dp"
            android:background="@drawable/rounded_option"
            android:padding="5dp"
            android:text="Option 1 \n option1 \n option"
            android:textAlignment="gravity"
            android:textSize="20dp"
            tools:ignore="HardcodedText" />

Activity 代码### 有点乱，但正如这里所要求的，这是完整的代码。如果我放入碎片，那么将找不到解决方案。

import android.content.Intent;
import androidx.appcompat.app.AppCompatActivity;
import android.content.res.ColorStateList;
import android.graphics.Color;


import android.graphics.drawable.Drawable;
import android.os.Bundle;


import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

import java.util.Collections;
import java.util.List;


import static android.graphics.Color.GREEN;
import static android.graphics.Color.RED;



public class QuizActivity extends AppCompatActivity {
    
    public static final String EXTRA_SCORE = "extraScore";
    private TextView textViewQuestion;
    private TextView textViewScore;
    private TextView textViewQuestionCount;
    private TextView textViewCorrectAnswer;
    private RadioGroup rbGroup;
    private RadioButton rb1;
    private RadioButton rb2;
    private RadioButton rb3;
    private RadioButton rb4;
    private Button buttonConfirmNext;
    private long backPressedTime;

    private ColorStateList textColorDefaultRb;
    private Drawable textColorDefaultButton;
    private Drawable textColorDefaultAnswer;

    private List<Question> questionList;
    private int questionCounter;
    private int questionCountTotal;
    private Question currentQuestion;

    private int score;
    private boolean answered;




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

        textViewQuestion = findViewById(R.id.text_view_question);
        textViewScore = findViewById(R.id.text_view_score);
        textViewCorrectAnswer = findViewById(R.id.text_view_correctAnswer);
        textViewQuestionCount = findViewById(R.id.text_view_question_count);
        rbGroup = findViewById(R.id.radio_group);
        rb1 = findViewById(R.id.radio_button1);
        rb2 = findViewById(R.id.radio_button2);
        rb3 = findViewById(R.id.radio_button3);
        rb4 = findViewById(R.id.radio_button4);

        buttonConfirmNext = findViewById(R.id.button_confirm_next);

        textColorDefaultRb = rb1.getTextColors();
        textColorDefaultButton = rb1.getBackground();


        QuizDbHelper dbHelper = new QuizDbHelper(this);
        questionList = dbHelper.getAllQuestions();
        questionCountTotal = 20;
        Collections.shuffle(questionList);

        showNextQuestion();

        buttonConfirmNext.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (!answered) {
                    if (rb1.isChecked() || rb2.isChecked() || rb3.isChecked() || rb4.isChecked()) {
                        checkAnswer();
                    } else {
                        Toast.makeText(QuizActivity.this, "Please select an answer", Toast.LENGTH_SHORT).show();
                    }
                } else {
                    showNextQuestion();
                    textViewCorrectAnswer.setText("");
                    textViewCorrectAnswer.setBackground(textColorDefaultAnswer);
                }
            }
        });
    }


    private void showNextQuestion() {
        rb1.setTextColor(textColorDefaultRb);
        rb2.setTextColor(textColorDefaultRb);
        rb3.setTextColor(textColorDefaultRb);
        rb4.setTextColor(textColorDefaultRb);


        rb1.setBackground(textColorDefaultButton);
        rb2.setBackground(textColorDefaultButton);
        rb3.setBackground(textColorDefaultButton);
        rb4.setBackground(textColorDefaultButton);


        rbGroup.clearCheck();

        if (questionCounter < questionCountTotal) {
            currentQuestion = questionList.get(questionCounter);

            textViewQuestion.setText(currentQuestion.getQuestion());
            rb1.setText(currentQuestion.getOption1());

            rb2.setText(currentQuestion.getOption2());
            rb3.setText(currentQuestion.getOption3());
            rb4.setText(currentQuestion.getOption4());

            questionCounter++;
            textViewQuestionCount.setText("Question: " + questionCounter + "/" + questionCountTotal);
            answered = false;
            buttonConfirmNext.setText("Confirm");
        } else {
            finishQuiz();
        }
    }

    private void checkAnswer() {
        answered = true;

        RadioButton rbSelected = findViewById(rbGroup.getCheckedRadioButtonId());
        int answerNr = rbGroup.indexOfChild(rbSelected) + 1;

        if (answerNr == currentQuestion.getAnswerNr()) {
            score++;
            textViewScore.setText("Score: " + score);
            textViewCorrectAnswer.setText("Your Answer is Correct");
            textViewCorrectAnswer.setTextColor(GREEN);

        }
        else {
            textViewCorrectAnswer.setText("Your Answer is Incorrect");
            textViewCorrectAnswer.setTextColor(RED);
        }
        showSolution();
    }

    private void showSolution() {

        rb1.setBackgroundColor(Color.RED);
        rb2.setBackgroundColor(Color.RED);
        rb3.setBackgroundColor(Color.RED);
        rb4.setBackgroundColor(Color.RED);


        switch (currentQuestion.getAnswerNr()) {
            case 1:
                rb1.setBackgroundColor(GREEN);

                break;
            case 2:
                rb2.setBackgroundColor(GREEN);


                break;
            case 3:
                rb3.setBackgroundColor(GREEN);


                break;
            case 4:

                rb4.setBackgroundColor(GREEN);


        }

        if (questionCounter < questionCountTotal) {
            buttonConfirmNext.setText("Next");

        } else {
            buttonConfirmNext.setText("Finish");

        }

    }

    private void finishQuiz() {
        Intent resultIntent = new Intent();
        resultIntent.putExtra(EXTRA_SCORE, score);
        setResult(RESULT_OK, resultIntent);
        finish();
    }

    @Override
    public void onBackPressed() {
        if (backPressedTime + 2000 > System.currentTimeMillis()) {
            finishQuiz();
        } else {
            Toast.makeText(this, "Press back again to finish", Toast.LENGTH_SHORT).show();
        }

        backPressedTime = System.currentTimeMillis();
    }
}

Answer 1

检查一下:根据需要更换项目。

  <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:id="@+id/RelativeLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:layout_marginTop="250dp">

    <RadioGroup
        android:id="@+id/radio_group"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        tools:ignore="RelativeOverlap">


        <RadioButton
            android:background="@drawable/rounded_option"
            android:id="@+id/radio_button1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="25dp"
            android:padding="5dp"
            android:text="afeeeeeeeeeeeeeeeeeeeesdfsfsdfsdfsfsdsfddddddddddddddddddddddsfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdfsdffsdffsdfsdfdsf"
            android:textAlignment="gravity"
            android:textSize="20dp"
            tools:ignore="HardcodedText" />
    </RadioGroup>

</RelativeLayout>

这是屏幕截图: