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Fix: Add initialization checks for bluetoothService and adapter in cl… #8

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Fix: Add initialization checks for bluetoothService and adapter in cl… #8

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27 changes: 22 additions & 5 deletions .../kotlin/com/sersoluciones/flutter_pos_printer_platform/FlutterPosPrinterPlatformPlugin.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -177,8 +177,16 @@ class FlutterPosPrinterPlatformPlugin : FlutterPlugin, MethodCallHandler, Plugin
messageChannel = null
messageUSBChannel = null

bluetoothService.setHandler(null)
adapter.setHandler(null)
// Check if bluetoothService is initialized before cleanup
// This prevents crash when BackgroundService stops before onAttachedToActivity is called
if (::bluetoothService.isInitialized) {
bluetoothService.setHandler(null)
}

// Check if adapter is initialized before cleanup
if (::adapter.isInitialized) {
adapter.setHandler(null)
}
}

override fun onAttachedToActivity(binding: ActivityPluginBinding) {
Expand Down Expand Up @@ -227,21 +235,30 @@ class FlutterPosPrinterPlatformPlugin : FlutterPlugin, MethodCallHandler, Plugin
override fun onDetachedFromActivityForConfigChanges() {
Log.d(TAG, "onDetachedFromActivityForConfigChanges")
currentActivity = null
bluetoothService.setActivity(null)
// Check if bluetoothService is initialized before cleanup
if (::bluetoothService.isInitialized) {
bluetoothService.setActivity(null)
}
}

override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
Log.d(TAG, "onReattachedToActivityForConfigChanges")
currentActivity = binding.activity
binding.addRequestPermissionsResultListener(this)
binding.addActivityResultListener(this)
bluetoothService.setActivity(currentActivity)
// Check if bluetoothService is initialized before setting activity
if (::bluetoothService.isInitialized) {
bluetoothService.setActivity(currentActivity)
}
}

override fun onDetachedFromActivity() {
Log.d(TAG, "onDetachedFromActivity")
currentActivity = null
bluetoothService.setActivity(null)
// Check if bluetoothService is initialized before cleanup
if (::bluetoothService.isInitialized) {
bluetoothService.setActivity(null)
}
}

override fun onMethodCall(@NonNull call: MethodCall, @NonNull result: Result) {
Expand Down