How to read/write a boolean when implementing the Parcelable interface?

Question

I\'m trying to make an ArrayList Parcelable in order to pass to an activity a list of custom object. I start writing a myObjectList cl

Answer 1

Short and simple implementation in Kotlin, with nullable support:

Add methods to Parcel

fun Parcel.writeBoolean(flag: Boolean?) {
    when(flag) {
        true -> writeInt(1)
        false -> writeInt(0)
        else -> writeInt(-1)
    }
}

fun Parcel.readBoolean(): Boolean? {
    return when(readInt()) {
        1 -> true
        0 -> false
        else -> null
    }
}

And use it:

parcel.writeBoolean(isUserActive)

parcel.readBoolean()        // For true, false, null
parcel.readBoolean()!!      // For only true and false