Data binding: set property if it isn't null

Question

Cannot understand... How to set some property of view only if variable field isn\'t null?
For example

Answer 1

Data binding does not need to check for null value, it will be handled by binding class.

If you need to check null for other purpose (like setting default value) then you can use like this.

android:text='@{item.gender != null ? item.gender : @string/male}'

or

android:text='@{item.gender ?? @string/male}'

Both above examples are same. Here @string/male is default value, when item.gender is null.