An operation is not implemented: Not yet implemented
just remove TODO( ... ) from your onClickListener:
override fun onClick(v: View?) {
// No TODO here
when (v?.id) {
...
}
}
TODO(...) is Kotlin function which always throws NotImplementedError. If you want to mark something with TODO but to not throw exception - just use TODO with comments:
override fun onClick(v: View?) {
//TODO: implement later
when (v?.id) {
...
}
}