Android 自定义复选框/单选按钮文本不显示

Question

我正在尝试使用来自 Http 请求的信息以编程方式创建自定义 RadioButtons/Checkboxes(在应用程序中创建调查)。我已经尝试了 Android Checkbox text not displaying 中建议的解决方案但文本仍然没有出现。

我能够创建自定义按钮 View ，但由于某些原因文本不显示。知道我哪里出错了吗？

复选框选择器:

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

    <item android:drawable="@drawable/multiselected" android:state_checked="true"/>
    <item android:drawable="@drawable/multiunselected" android:state_checked="false"/>

</selector>

radio_selector:

<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/singleselected" android:state_checked="true"/>
    <item android:drawable="@drawable/singleunselected" android:state_checked="false"/>

</selector>

这是我创建它们的方式:

if (mQuestion != null && mQuestion.isSingleResponse()
                    && mAnswerTitles.size() > 0) {
                for (int i = 0; i < mAnswerTitles.size(); i++) {
                    Answer answer1 = mAnswerTitles.get(i);
                    RadioButton answer = new RadioButton(getActivity());

                    answer.setText(answer1.getTitle().toString());
                    answer.setTextSize(24);
                    answer.setTextColor(Color.BLACK);
                    answer.setId(answer1.getId());
                    answer.setButtonDrawable(R.drawable.radio_selector);
                    answer.setLayoutParams(mRadioGroupAnswers.getLayoutParams());
                    answer.setOnClickListener(new View.OnClickListener() {

                        @Override
                        public void onClick(View v) {
                            // TODO Auto-generated method stub
                            mNextQuestion.setEnabled(true);
                        }
                    });
                    mRadioGroupAnswers.addView(answer);
                }
            } else {
                if (mAnswerTitles != null && mAnswerTitles.size() > 0) {
                    for (int i = 0; i < mAnswerTitles.size(); i++) {
                        Answer answer1 = mAnswerTitles.get(i);
                        CheckBox answer = new CheckBox(getActivity());
                        answer.setText(answer1.getTitle().toString());
                        answer.setTextSize(24);
                        answer.setTextColor(Color.BLACK);
                        answer.setId(answer1.getId());
                        answer.setButtonDrawable(R.drawable.checkbox_selector);
                        answer.setLayoutParams(mRadioGroupAnswers.getLayoutParams());
                        answer.setOnClickListener(new View.OnClickListener() {

                            @Override
                            public void onClick(View v) {
                                // TODO Auto-generated method stub
                                mNextQuestion.setEnabled(true);
                            }
                        });
                        if (mAnswerHolder != null) {
                            mAnswerHolder.addView(answer);
                        }
                    }
                }

我要将它们添加到的组/布局:

<RadioGroup
            android:layout_marginTop="8dp"
            android:id="@+id/answerGroup"
            android:textColor="@android:color/black"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" >
        </RadioGroup>

        <LinearLayout
            android:id="@+id/answerTextHolder"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical" >
        </LinearLayout>

看起来文本实际上只是被图像隐藏了 - 而不是放在图像上并根据文本长度重新调整图像大小:

Answer 1

我想通了!诀窍是使用 setBackgroundResource 而不是 setButtonDrawable:

answer.setBackgroundResource(R.drawable.radio_selector);

经过一些测试后的想法 - 如果您完全自定义，我建议也覆盖可绘制的单选/复选框按钮。