Is it possible to pass lambda to Intent?

Question

I was wondering if it would be possible to pass a lambda to Intent in kotlin, since lambdas are Serializable, but with this code I am getting error when creating a PendingIntent.

val bundle = bundleOf(ACTION to { pause() })
val playButtonIntent = Intent(this, MusicService::class.java).apply {
        putExtras(bundle)
}
val pendingPlayIntent = PendingIntent.getService(this, 1, playButtonIntent, 0)

error:

java.lang.RuntimeException: Parcelable encountered IOException writing serializable object

I've created a wrapper TrackedReference that is parcelable and serializable without requiring marshaling for the underlying type: https://stackoverflow.com/a/64944753/3405387 — Lukas, Nov 21 '20 at 16:28

score 5 · Accepted Answer · answered Nov 19 '18 at 05:40

A Lambda itself is serializable. But in your case, it closes on a variable bundle of some type that likely is not serializable. So it is making a Lambda class that includes a member to hold that closed variable. You cannot make a serializable object that contains things inside it that break serialization.

So you need to find a way not to hold that bundle class, or need to make it serializable.

See this other question in SO for more details: https://stackoverflow.com/a/48870902/3679676

Is it possible to pass lambda to Intent?

1 Answers1