How can I pass null as argument via databinding?
when it just
android:onClick="@{() -> viewModel.switchFunction(null)}"
I get cannot find method switchFunction(java.lang.Object) exception.
My ViewModel function is
fun switchFunction(param: MyClass?) {
}
As it turned out, it's preaty easy - just need to specify type of null:
<data>
<import type="classes.MyClass" />
</data>
...
android:onClick="@{() -> viewModel.switchFunction((MyClass) null)}"
I think you can't do that. Generated data binding code automatically checks for null values and avoid null pointer exceptions
https://developer.android.com/topic/libraries/data-binding/expressions#null_coalescing_operator