Coroutine Broadcast Receivers

BroadcastReceiver.kt

context.registerReceiverInScope(scope, WifiManager.WIFI_STATE_CHANGED_ACTION) { intent ->
    val state = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, WifiManager.WIFI_STATE_DISABLED)
    // Use wifi state here
}

/**
 * Register a broadcast receiver in the given coroutine scope for any of the specified actions
 * and call the callback when it is invoked.
 */
fun Context.registerReceiverInScope(
    scope: CoroutineScope,
    vararg intentFilterActions: String,
    callback: (Intent) -> Unit,
) {
    val receiver = object : BroadcastReceiver() {
        override fun onReceive(context: Context, intent: Intent) {
            callback(intent)
        }
    }
    val intentFilter = IntentFilter()
    intentFilterActions.forEach { intentFilter.addAction(it) }
    registerReceiver(receiver, intentFilter)
    scope.invokeOnCompletion {
        unregisterReceiver(receiver)
    }
}