Pass a mutableList from activity A to activity B in Kotlin.

问题

I'm trying to pass data from activity A to activity B through intent in Kotlin.

The problem is I have a videos: MutableList<Video> and the intent.putParcelableArrayListExtra("VIDEOS", videos) only accepts ArrayList<out Parcelable> as arguments.

Questions

*. How do I send a mutableList data from activity A to activity B?

*. Or Do I have to convert it to ArrayList<Video> ?

PS: Videoimplements Parcelable

回答1:

Converting it to an ArrayList (or storing it as one in the first place?) is the easy solution if you want to stick to passing it through an Intent. There's an ArrayList constructor that takes a collection as its parameter:

intent.putParcelableArrayListExtra("VIDEOS", ArrayList(videos))

来源：https://stackoverflow.com/questions/48541446/pass-a-mutablelist-from-activity-a-to-activity-b-in-kotlin