How do I receive parcelable bundles?

I create a bundle like this:

val intent = Intent(classContext, Recipes::class.java)

var bundle = Bundle().apply {
putParcelableArrayList("LIST", ArrayList<Parcelable>(fbModel.recipeArray))
putInt("POSITION", position)
}

intent.putExtra("bundle", bundle)

//CHECK TO SEE IF DATA IS STORED
var passedIntent = intent.extras
var bundle2: Bundle = passedIntent.getBundle("bundle")
var recipeArray: ArrayList<RecipeTemplate> = bundle2.getParcelableArrayList("LIST")

Log.d("TAGC", " " + recipeArray[0].recipeHeader) //SUCCESS!
Log.d("TAGC", " " + position) //SUCCESS!


startActivity(intent)


To see if it worked I created and logged variables from the bundle and they do indeed contain the correct data.

bundle

The class object stored in the array RecipeTemplate is Parcelized and looks like this:

RecipeTemplate

Parcelized

@SuppressLint("ParcelCreator")
@Parcelize
class RecipeTemplate: Parcelable {
var recipeHeader: String? = null
var recipeText: String? = null
var recipeImage: String? = null
var recipeKey: String? = null
}


So far so good. But when I receive the bundle in the other activity it returns null for some reason, even though I use the same exact code as above (the test code to see if the bundle stored the correct data). This is the receiving activity:

var passedIntent: Bundle = intent.extras
var bundle = passedIntent.getBundle("bundle")
var counter: Int = bundle.getInt("POSITION", 0)
var recipeArray: ArrayList<RecipeTemplate> = bundle.getParcelableArrayList("LIST")

Log.d("TAGA", "PASSED " + counter) //SUCCESS
Log.d("TAGA", "PASSED " + recipeArray[0].recipeHeader) //FAIL: null


The counter/position variable returns the correct data, but the recipeArray is null for some reason. Again, it worked in the previous activity, so I don't see why it's different this time around... Any ideas?

recipeArray

UPDATE
If I hover the cursor over the variables in the class it says: Property not serialized as parcel. Sounds like things aren't working as I intended... What gives?

Property not serialized as parcel

1 Answer
1

Try refactoring your RecipeTemplate to accept the properties as parameters in your constructor instead.

@SuppressLint("ParcelCreator")
@Parcelize
class RecipeTemplate (
var recipeHeader: String? = null,
var recipeText: String? = null,
var recipeImage: String? = null,
var recipeKey: String? = null
) : Parcelable


The problem may lie on the way the parcelize is implemented. I cannot find any documentation regarding this but there is a high chance that createFromParcel just calls the primary constructor only. This is still experimental and may change in the future. I can be wrong though and I am glad to be corrected.

: Parcelable

Expecting a top level declaration

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