Add OutcomeReceiverCompat to androidx.core.os [380060342]

Assigned

Feature Request

Status Update

No update yet.

Description

pe...@google.com

created issue #1

Nov 20, 2024 04:25PM

See API council conversation here: https://chat.google.com/room/AAAATnZMo34/VJnRMh_50Z8

For Java APIs in AndroidX, there isn't a standard way to deliver an async result that could fail. For Kotlin you'd use a suspend fun (which can throw) and for Java APIs in the platform you'd use an OutcomeReceiver, which was added in API 31.

For context, we (androidx.webkit) are designing an API that would benefit from being able to use OutcomeReceiver and we'd prefer to use a standard approach rather than writing our own.

I assume that androidx.core.os would be the right place for this to live.

Comments

al...@google.com <al...@google.com> #2Nov 20, 2024 05:39PM

Reassigned to pe...@google.com.

Maybe also something aline the lines of:

inline fun <reified T> Bundle.parcelable(key: String): T? = when {
  SDK_INT >= 33 -> getParcelable(key, T::class.java)
  else -> @Suppress("DEPRECATION") getParcelable(key) as? T
}

ap...@google.com <ap...@google.com> #3Nov 21, 2024 05:12PM

Over to platform owner for consideration.

pe...@google.com <pe...@google.com> #4Nov 21, 2024 05:17PM

Yeah, we want this, but with b/240585930 we might only want to introduce this for U :(

pe...@google.com <pe...@google.com> #5Nov 21, 2024 05:18PM

also bugs me about Parcel.readParcelable. if ya gonna nag me in a gazilion places through my code at least give me a nice way to resolve it. these 'blah is deprecated' msgs for code that works on my minSdkVersion just kill me. sticking an if or a supress on every second line of my code is just ...

a little comment about the above kotlin inline fun, I need both kotlin and java solution.

el...@google.com <el...@google.com> #6Nov 22, 2024 08:06PM

Re #4, I think Google should offer this even if it's only going to work on U+ because right now the original APIs are deprecated and the replacements are not safe to use.

al...@google.com <al...@google.com> #7Nov 25, 2024 09:06PM

#triage_week_35

pe...@google.com <pe...@google.com> #8Nov 26, 2024 08:26AM

To add to #5, I went half an hour through the app, thinking the new method is backwards-compatible. Android Studio reported no issues, having the compileSdkVersion to 33 and minSdkVersion at 23.

Run the app on the device and boom, crash. Time to revert everything or replace every method with a backwards-compatbile function that I have to integrate on my own :(.