Question

我正在寻找隐藏CheckBox的更好方法。每种情况下都有minium 2和最多5个CheckBox（5个CheckBox和5个CheckBox）。

我用我的数据库的值动态填充答案Arraylist。然后，如果列表有值，我会检查每个案例。如果有值，则CheckBox获取answertext，否则文本为null。之后，我想隐藏所有答案复选框的空值。另外我必须处理相关的解决方案CheckBoxes。这是我实施的方式：

if (question.getQuestiontype() == 2) {
            cb_answer1.setText(answerList.size() >= 1 ? answerList.get(0).getAnswertext() : null);
            cb_answer2.setText(answerList.size() >= 2 ? answerList.get(1).getAnswertext() : null);
            cb_answer3.setText(answerList.size() >= 3 ? answerList.get(2).getAnswertext() : null);
            cb_answer4.setText(answerList.size() >= 4 ? answerList.get(3).getAnswertext() : null);
            cb_answer5.setText(answerList.size() >= 5 ? answerList.get(4).getAnswertext() : null);

            if (cb_answer3.getText().toString().isEmpty()) {
                cb_answer3.setVisibility(View.INVISIBLE);
                cb_answer4.setVisibility(View.INVISIBLE);
                cb_answer5.setVisibility(View.INVISIBLE);
                cb_solution3.setVisibility(View.INVISIBLE);
                cb_solution4.setVisibility(View.INVISIBLE);
                cb_solution5.setVisibility(View.INVISIBLE);
            } else {
                cb_answer3.setVisibility(View.VISIBLE);
                cb_answer4.setVisibility(View.VISIBLE);
                cb_answer5.setVisibility(View.VISIBLE);
                cb_solution3.setVisibility(View.VISIBLE);
                cb_solution4.setVisibility(View.VISIBLE);
                cb_solution5.setVisibility(View.VISIBLE);
            }

            if (cb_answer4.getText().toString().isEmpty()) {
                cb_answer4.setVisibility(View.INVISIBLE);
                cb_answer5.setVisibility(View.INVISIBLE);
                cb_solution4.setVisibility(View.INVISIBLE);
                cb_solution5.setVisibility(View.INVISIBLE);
            } else {
                cb_answer4.setVisibility(View.VISIBLE);
                cb_answer5.setVisibility(View.VISIBLE);
                cb_solution4.setVisibility(View.VISIBLE);
                cb_solution5.setVisibility(View.VISIBLE);
            }

            if (cb_answer5.getText().toString().isEmpty()) {
                cb_answer5.setVisibility(View.INVISIBLE);
                cb_solution5.setVisibility(View.INVISIBLE);
            } else {
                cb_answer5.setVisibility(View.VISIBLE);
                cb_solution5.setVisibility(View.VISIBLE);
            }

            for (CheckBox cb : answerCheckBoxes) {
                cb.setEnabled(true);
            }
        }

看起来有点尴尬，我认为这不是解决这个问题的最佳方法。你能给我一些建议吗？

Answer 1

一组视图怎么样？

示例：

CheckBox[] answers = new CheckBox[] {cb_answer1, cb_answer2, cb_answer3, cb_answer4, cb_answer5};
for (int i = answerList.size(); i < answers.length; i++) {
   answers[i].setVisibility(View.INVISIBLE);
}

随意扩展！

Answer 2

首先，如果我理解得很好，我认为你可以像这里一样简化你的代码选择cbs逻辑：

如果（question.getQuestiontype（）== 2）

{
    cb_answer1.setText(answerList.size() >= 1 ? answerList.get(0).getAnswertext() : null);
    cb_answer2.setText(answerList.size() >= 2 ? answerList.get(1).getAnswertext() : null);
    cb_answer3.setText(answerList.size() >= 3 ? answerList.get(2).getAnswertext() : null);
    cb_answer4.setText(answerList.size() >= 4 ? answerList.get(3).getAnswertext() : null);
    cb_answer5.setText(answerList.size() >= 5 ? answerList.get(4).getAnswertext() : null);

    if (cb_answer3.getText().toString().isEmpty()) {
        cb_answer3.setVisibility(View.INVISIBLE);
        cb_solution3.setVisibility(View.INVISIBLE);
    } else {
        cb_answer3.setVisibility(View.VISIBLE);
        cb_solution3.setVisibility(View.VISIBLE);
    }

    if (cb_answer4.getText().toString().isEmpty()) {
        cb_answer4.setVisibility(View.INVISIBLE);
        cb_solution4.setVisibility(View.INVISIBLE);
    } else {
        cb_answer4.setVisibility(View.VISIBLE);
        cb_solution4.setVisibility(View.VISIBLE);
    }

    if (cb_answer5.getText().toString().isEmpty()) {
        cb_answer5.setVisibility(View.INVISIBLE);
        cb_solution5.setVisibility(View.INVISIBLE);
    } else {
        cb_answer5.setVisibility(View.VISIBLE);
        cb_solution5.setVisibility(View.VISIBLE);
    }

    for (CheckBox cb : answerCheckBoxes) {
        cb.setEnabled(true);
    }
}

然后查看此代码，您可以看到您在variuos answer和response cbs上执行相同的操作。所以你可以创建一个这样的参数化方法：

if（question.getQuestiontype（）== 2）{

    cb_answer1.setText(answerList.size() >= 1 ? answerList.get(0).getAnswertext() : null);
    cb_answer2.setText(answerList.size() >= 2 ? answerList.get(1).getAnswertext() : null);
    cb_answer3.setText(answerList.size() >= 3 ? answerList.get(2).getAnswertext() : null);
    cb_answer4.setText(answerList.size() >= 4 ? answerList.get(3).getAnswertext() : null);
    cb_answer5.setText(answerList.size() >= 5 ? answerList.get(4).getAnswertext() : null);

    this.setCheckboxVisibility(cb_answer3, cb_solution3);
    this.setCheckboxVisibility(cb_answer4, cb_solution4);
    this.setCheckboxVisibility(cb_answer5, cb_solution5);

    for (CheckBox cb : answerCheckBoxes) {
        cb.setEnabled(true);
    }
}


private void setCheckboxVisibility(Checkbox answer, Checkbox solution) {

    if (answer.getText().toString().isEmpty()) {
        answer.setVisibility(View.INVISIBLE);
        solution.setVisibility(View.INVISIBLE);
    } else {
        answer.setVisibility(View.VISIBLE);
        solution.setVisibility(View.VISIBLE);
    }
}

然后，您可以将此解决方案与TWL发布的解决方案结合起来

Android - 如果值为空，则隐藏CheckBoxes

2 个答案: