From 1c62271152621be1f20c95e313ec732138c1c0f6 Mon Sep 17 00:00:00 2001
From: Sahil Totala <sahil.t@simformssolutions.com>
Date: Thu, 9 Jan 2025 13:41:01 +0530
Subject: [PATCH] =?UTF-8?q?fix:=20=F0=9F=90=9BFixed=20gyroscope=20initiali?=
 =?UTF-8?q?zation=20issue?=
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---
 CHANGELOG.md                                        |  2 ++
 .../gyroscope/GyroscopeStreamHandler.kt             | 13 +++++++++++--
 .../plugin/flutter_credit_card_method_channel.dart  |  5 ++++-
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 022fefc..94ebb3d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # [4.0.2](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/tree/4.0.2) [UNRELEASED]
 
 - Fixed floating event stream bad state exception [#157](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/issues/157).
+- Fixed Gyroscope initialization issue [#173](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/issues/173).
+- Fixed Namespace Not Found issue [#176](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/issues/176).
 
 # [4.0.1](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/tree/4.0.1)
 
diff --git a/android/src/main/kotlin/com/simform/flutter_credit_card/gyroscope/GyroscopeStreamHandler.kt b/android/src/main/kotlin/com/simform/flutter_credit_card/gyroscope/GyroscopeStreamHandler.kt
index 42bcce4..df3bb2d 100644
--- a/android/src/main/kotlin/com/simform/flutter_credit_card/gyroscope/GyroscopeStreamHandler.kt
+++ b/android/src/main/kotlin/com/simform/flutter_credit_card/gyroscope/GyroscopeStreamHandler.kt
@@ -15,17 +15,26 @@ internal class GyroscopeStreamHandler(
 ) : EventChannel.StreamHandler {
     private var sensorEventListener: SensorEventListener? = null
 
-    private val sensor: Sensor by lazy {
+    private val sensor: Sensor? by lazy {
         sensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE)
     }
 
     override fun onListen(arguments: Any?, events: EventSink) {
+        if (sensor == null) {
+            events.error("SENSOR_UNAVAILABLE", "Gyroscope sensor is not available on this device.", null)
+            return
+        }
         sensorEventListener = createSensorEventListener(events)
         // Gyroscope Event sample period set at 60 fps, specified in microseconds.
         sensorManager.registerListener(sensorEventListener, sensor, 16666)
     }
 
-    override fun onCancel(arguments: Any?) = sensorManager.unregisterListener(sensorEventListener)
+    override fun onCancel(arguments: Any?) {
+        if (sensorEventListener != null) {
+            sensorManager.unregisterListener(sensorEventListener)
+            sensorEventListener = null
+        }
+    }
 
     private fun createSensorEventListener(events: EventSink): SensorEventListener {
         return object : SensorEventListener {
diff --git a/lib/src/plugin/flutter_credit_card_method_channel.dart b/lib/src/plugin/flutter_credit_card_method_channel.dart
index e99338b..a749cf1 100644
--- a/lib/src/plugin/flutter_credit_card_method_channel.dart
+++ b/lib/src/plugin/flutter_credit_card_method_channel.dart
@@ -51,7 +51,6 @@ class MethodChannelFlutterCreditCard extends FlutterCreditCardPlatform {
     );
 
     if (Platform.isIOS || Platform.isAndroid) {
-      await initiateEvents();
       _isGyroscopeAvailable = await _methodChannel!.invokeMethod<dynamic>(
             AppConstants.isGyroAvailableMethod,
           ) ??
@@ -60,6 +59,10 @@ class MethodChannelFlutterCreditCard extends FlutterCreditCardPlatform {
       // Other platforms should not use the gyroscope events.
       _isGyroscopeAvailable = false;
     }
+    // We will only initialize event if gyroScope is available.
+    if (_isGyroscopeAvailable) {
+      await initiateEvents();
+    }
   }
 
   @override