Switched StateFlow for a Channel for scan event notification

Author: h0ker

app/build.gradle.kts

@@ -13,8 +13,8 @@ android {
         applicationId = "com.hoker.intra_example"
         minSdk = 28
         targetSdk = 35
-        versionCode = 129
-        versionName = "1.2.9"
+        versionCode = 130
+        versionName = "1.3.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {

intra/build.gradle.kts

@@ -61,7 +61,7 @@ afterEvaluate {
                 from(components["release"])
                 groupId = "com.github.CarbideCowboy"
                 artifactId = "Intra"
-                version = "1.2.9"
+                version = "1.3.0"
             }
         }
     }

intra/src/main/java/com/hoker/intra/domain/NfcAdapterController.kt

@@ -5,17 +5,17 @@ import android.nfc.NfcAdapter
 import android.nfc.Tag
 import android.os.Bundle
 import android.util.Log
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.flow.receiveAsFlow
 import javax.inject.Inject
 
 open class NfcAdapterController @Inject constructor(
     private val nfcAdapter: NfcAdapter?
 ) {
     private var onTagDiscoveredListener: ((Tag?) -> Unit)? = null
     private val listenerMap = LinkedHashMap<String, Pair<String, (Tag?) -> Unit>>()
-    private val _connectionState: MutableStateFlow<Boolean> = MutableStateFlow(false)
-    val connectionState = _connectionState.asStateFlow()
+    private val _onScanChannel = Channel<Unit>(Channel.BUFFERED)
+    val scanEvent = _onScanChannel.receiveAsFlow()
 
     fun enableNfc(activity: NfcActivity) {
         nfcAdapter?.let { adapter ->
@@ -26,12 +26,8 @@ open class NfcAdapterController @Inject constructor(
             adapter.enableReaderMode(
                 activity,
                 { tag ->
-                    _connectionState.value = true
-                    try {
-                        onTagDiscoveredListener?.invoke(tag)
-                    } finally {
-                        _connectionState.value = false
-                    }
+                    _onScanChannel.trySend(Unit)
+                    onTagDiscoveredListener?.invoke(tag)
                 },
                 flags,
                 options