Reset permissionsRequested flag after deny and on return from settings

android/app/src/main/java/com/eddy/atomrelay/MainActivity.kt

@@ -101,6 +101,7 @@ class MainActivity : AppCompatActivity(), BleCallbacks {
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         super.onActivityResult(requestCode, resultCode, data)
         if (requestCode == REQUEST_SETTINGS && resultCode == SettingsActivity.RESULT_SCAN) {
+            permissionsRequested = false
             manager.disconnect()
             manager.resetTriedAddresses()
             manager.updateKeys()
@@ -143,6 +144,7 @@ class MainActivity : AppCompatActivity(), BleCallbacks {
             if (grantResults.all { it == PackageManager.PERMISSION_GRANTED }) {
                 manager.startScan()
             } else {
+                permissionsRequested = false
                 onStatusChanged(BleStatus.PermissionsDenied)
             }
         }