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

Well data binding avoids NullPointerException in general by checking for it and assigns the default value (null for example) even if item itself is null in your example.

But a basic example for null checks for the item's properties:

android:text='@{item.title != null ? user.title : ""}'

Or use the "Null Coalescing Operator". The null coalescing operator (??) chooses the left operand if it is not null or the right if it is null.

android:text='@{item.title ?? ""}'

Note that title or getTitle doesn't matter.