Has anyone ever gotten a `ClassCastException: LinkedHashMap can't be cast to X` When using `by lazy{...

# android

[Sam Stone]

Has anyone ever gotten a ClassCastException: LinkedHashMap can't be cast to X When using by lazy{X}? I think this is the second time, though haven't had it in a while. Code:

class MyFragment : Fragment() {

private val foo by lazy { MyDialogFragment(params) }

fun myFun() {

foo.show()

}

}

[tseisel]

Keeping an instance of DialogFragment as a class variable of another fragment feels like a memory leak to me. That may be the cause of your problem.

[lam bui]

I think i want week reference, but if fragment is destroyed then it will error.

[tseisel]

When shown, a DialogFragment is recorded in the fragment manager, you should not need to keep an explicit reference to it. You can retrieve a fragment from the fragment manager given its tag