WiFi app: check "hidden" in EditNetwork

internal_filesystem/builtin/apps/com.micropythonos.wifi/assets/wifi.py

@@ -155,6 +155,7 @@ class WiFi(Activity):
         intent = Intent(activity_class=EditNetwork)
         intent.putExtra("selected_ssid", ssid)
         intent.putExtra("known_password", WifiService.get_network_password(ssid))
+        intent.putExtra("hidden", WifiService.get_network_hidden(ssid))
         self.startActivityForResult(intent, self.edit_network_result_callback)
 
     def edit_network_result_callback(self, result):
@@ -228,6 +229,7 @@ class EditNetwork(Activity):
         password_page.set_flex_flow(lv.FLEX_FLOW.COLUMN)
         self.selected_ssid = self.getIntent().extras.get("selected_ssid")
         known_password = self.getIntent().extras.get("known_password")
+        known_hidden = self.getIntent().extras.get("hidden", False)
 
         # SSID:
         if self.selected_ssid is None:
@@ -264,6 +266,8 @@ class EditNetwork(Activity):
         self.hidden_cb = lv.checkbox(password_page)
         self.hidden_cb.set_text("Hidden network (always try connecting)")
         self.hidden_cb.set_style_margin_left(5, lv.PART.MAIN)
+        if known_hidden:
+            self.hidden_cb.set_state(lv.STATE.CHECKED, True)
 
         # Action buttons:
         buttons = lv.obj(password_page)

internal_filesystem/lib/mpos/battery_voltage.py

@@ -14,8 +14,7 @@ CACHE_DURATION_ADC1_MS = 30000   # 30 seconds (cheaper: no WiFi interference)
 CACHE_DURATION_ADC2_MS = 600000  # 600 seconds (expensive: requires WiFi disable)
 #CACHE_DURATION_ADC2_MS = CACHE_DURATION_ADC1_MS # trigger frequent disconnections for debugging OSUpdate resume
 # Or at runtime, do:
-# import mpos.battery_voltage
-# mpos.battery_voltage.CACHE_DURATION_ADC2_MS = 30000
+# import mpos.battery_voltage ; mpos.battery_voltage.CACHE_DURATION_ADC2_MS = 30000
 
 
 def _is_adc2_pin(pin):

internal_filesystem/lib/mpos/net/wifi_service.py

@@ -461,6 +461,27 @@ class WifiService:
             return ap.get("password")
         return None
 
+    @staticmethod
+    def get_network_hidden(ssid):
+        """
+        Get the hidden flag for a network.
+
+        Args:
+            ssid: Network SSID
+
+        Returns:
+            bool: True if network is hidden, False otherwise
+        """
+        if not WifiService.access_points:
+            WifiService.access_points = mpos.config.SharedPreferences(
+                "com.micropythonos.system.wifiservice"
+            ).get_dict("access_points")
+
+        ap = WifiService.access_points.get(ssid)
+        if ap:
+            return ap.get("hidden", False)
+        return False
+
     @staticmethod
     def save_network(ssid, password, hidden=False):
         """