How to register for ACTION_PACKAGE_ADDED and ACTION_PACKAGE_REMOVED on Android Oreo?

Question

Looking at the latest Android Oreo release notes, it seems like only a handful of implicit broadcasts can be registered by the apps. ACTION_PACKAGE_ADDED and ACTION_PACKAGE_

Answer 1

As posted in https://stackoverflow.com/a/55819091/1848826

I could make it work with the following code

class KotlinBroadcastReceiver(action: (context: Context, intent: Intent) -> Unit) : BroadcastReceiver() {
    override fun onReceive(context: Context, intent: Intent) = action(context, intent)
}

class MainActivity : AppCompatActivity() {
    private val broadcastReceiver = KotlinBroadcastReceiver { context, _ ->
        Toast.makeText(context, "It works", Toast.LENGTH_LONG).show()
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        registerReceiver(broadcastReceiver, IntentFilter().apply {
            addAction(Intent.ACTION_PACKAGE_ADDED)
            addAction(Intent.ACTION_PACKAGE_REMOVED)
            addDataScheme("package") // I could not find a constant for that :(
        })
    }

    override fun onDestroy() {
        super.onDestroy()
        unregisterReceiver(broadcastReceiver)
    }
}