Ternary operator with String literals in Android Data Binding Library

Question

I have an EditText and I want to set its inputType depending on if the Parameter is numeric or not:

interface Parameter {
    boolean isNumeric();
}

I have this:

   <EditText
       ...
       android:inputType="@{parameter.isNumeric()? number : text}"/>

But there is an error when parsing XML. I have tried by wrapping number and text values in single and double (escaped) quotation marks.

How can I solve this?

Answer 1

The number and text values would be considered variables in Java context. You have to make sure to set the appropriate Java value. First you have to import InputType in your <data> block. Then use the relating integer values.

<EditText
    android:inputType="@{parameter.isNumeric() ? InputType.TYPE_CLASS_NUMBER : InputType.TYPE_CLASS_TEXT}" />