java如何在安卓xml中编写数据绑定时的三元操作条件

Question

如何在使用数据绑定的同时在安卓xml中编写三元操作的等价表达式

安卓:visibility="@{(assessmentquestionanswer.type.equals(@string/editText_type)?  View.VISIBLE : View.GONE) || (assessmentquestionanswer.type.equals(@string/date)?  View.VISIBLE : View.GONE)}"

目前，我收到一条错误消息 必须能够找到布尔值和int的公共父级

Answer 1

你的实施方式是错误的，你目前的状况是

(assessmentquestionanswer.type.equals(@string/editText_type)?  View.VISIBLE : View.GONE) || (assessmentquestionanswer.type.equals(@string/date)?  View.VISIBLE : View.GONE)
                          View.VISIBLE                                                   ||                            View.VISIBLE

这是不对的。应该是

android:visibility="@{(assessmentquestionanswer.type.equals(@string/editText_type) || assessmentquestionanswer.type.equals(@string/date)) ?  View.VISIBLE : View.GONE}"

Answer 2

试着这样做：

android:visibility="@{(assessmentquestionanswer.type.equals(@string/editText_type) || assessmentquestionanswer.type.equals(@string/date))?  View.VISIBLE : View.GONE}"