Implement hasPermissions API (#201)

* Implement hasPermissions api

* Bump minimum MacOS version to 10.15

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

darwin/Classes/UniversalBle.g.swift

@@ -529,6 +529,7 @@ class UniversalBlePigeonCodec: FlutterStandardMessageCodec, @unchecked Sendable
 /// Generated protocol from Pigeon that represents a handler of messages from Flutter.
 protocol UniversalBlePlatformChannel {
   func getBluetoothAvailabilityState(completion: @escaping (Result<Int64, Error>) -> Void)
+  func hasPermissions(withAndroidFineLocation: Bool) throws -> Bool
   func requestPermissions(withAndroidFineLocation: Bool, completion: @escaping (Result<Void, Error>) -> Void)
   func enableBluetooth(completion: @escaping (Result<Bool, Error>) -> Void)
   func disableBluetooth(completion: @escaping (Result<Bool, Error>) -> Void)
@@ -571,6 +572,21 @@ class UniversalBlePlatformChannelSetup {
     } else {
       getBluetoothAvailabilityStateChannel.setMessageHandler(nil)
     }
+    let hasPermissionsChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.universal_ble.UniversalBlePlatformChannel.hasPermissions\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      hasPermissionsChannel.setMessageHandler { message, reply in
+        let args = message as! [Any?]
+        let withAndroidFineLocationArg = args[0] as! Bool
+        do {
+          let result = try api.hasPermissions(withAndroidFineLocation: withAndroidFineLocationArg)
+          reply(wrapResult(result))
+        } catch {
+          reply(wrapError(error))
+        }
+      }
+    } else {
+      hasPermissionsChannel.setMessageHandler(nil)
+    }
     let requestPermissionsChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.universal_ble.UniversalBlePlatformChannel.requestPermissions\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
     if let api = api {
       requestPermissionsChannel.setMessageHandler { message, reply in

darwin/Classes/UniversalBlePlugin.swift

@@ -56,6 +56,10 @@ private class BleCentralDarwin: NSObject, UniversalBlePlatformChannel, CBCentral
     }
   }
 
+  func hasPermissions(withAndroidFineLocation _: Bool) throws -> Bool {
+    return CBCentralManager.authorization == .allowedAlways
+  }
+
   func requestPermissions(withAndroidFineLocation _: Bool, completion: @escaping (Result<Void, any Error>) -> Void) {
     if manager.state != .unknown {
       completePermissionRequest(completion: completion)
@@ -114,21 +118,9 @@ private class BleCentralDarwin: NSObject, UniversalBlePlatformChannel, CBCentral
   }
 
   func isScanning() throws -> Bool {
-    var hasAuthorization = true
-    #if os(iOS)
-      if #available(iOS 13.1, *) {
-        hasAuthorization = CBCentralManager.authorization == .allowedAlways
-      } else {
-        return isManageScanning
-      }
-    #elseif os(macOS)
-      hasAuthorization = CBCentralManager.authorization == .allowedAlways
-    #endif
-
-    if hasAuthorization {
+    if CBCentralManager.authorization == .allowedAlways {
       return manager.isScanning
     }
-
     return isManageScanning
   }
 

darwin/universal_ble.podspec

@@ -16,8 +16,8 @@ A new Flutter plugin project.
   s.source_files = 'Classes/**/*'
   s.ios.dependency 'Flutter'
   s.osx.dependency 'FlutterMacOS'
-  s.ios.deployment_target = '9.0'
-  s.osx.deployment_target = '10.12'
+  s.ios.deployment_target = '13.1'
+  s.osx.deployment_target = '10.15'
 
   # Flutter.framework does not contain a i386 slice.
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }