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# ... [Keep all previous imports] ...

# Update the Builder string with loading indicators
Builder.load_string('''
<WeatherScreen>:
    MDScrollViewRefreshLayout:
        # ... [Keep previous layout structure] ...

                MDCard:
                    id: current_weather_card
                    # ... [Keep previous content] ...

                    MDBoxLayout:
                        spacing: dp(20)
                        adaptive_size: True
                        center_x: self.parent.center_x

                        MDLabel:
                            id: weather_icon
                            text: ""
                            font_style: "Icon"
                            size_hint: None, None
                            size: dp(48), dp(48)
                            theme_text_color: "Custom"
                            text_color: 1, 0.8, 0, 1

                        MDLabel:
                            id: temperature_label
                            text: "--°C"
                            font_style: "H2"
                            halign: "center"
                            bold: True

                    MDBoxLayout:
                        id: loading_indicator
                        size_hint_y: None
                        height: dp(20)
                        spacing: dp(5)
                        pos_hint: {'center_x': 0.5}

                        MDSpinner:
                            size_hint: None, None
                            size: dp(20), dp(20)
                            active: False
                            palette: [
                                app.theme_cls.primary_color,
                                app.theme_cls.accent_color,
                                app.theme_cls.primary_light,
                            ]

                # ... [Keep rest of the layout] ...
''')

class WeatherScreen(MDScreen):
    def show_loading(self, show):
        # Update loading state with spinner
        spinner = self.ids.loading_indicator.children[0]
        spinner.active = show
        for widget_id in ['current_weather_card', 'location_card', 'hourly_forecast_card', 'details_card']:
            self.ids[widget_id].opacity = 0.3 if show else 1
        self.ids.refresh_layout.refreshing = show

    def get_location_and_fetch_weather(self):
        try:
            if platform == "android":
                from android.permissions import Permission, request_permissions
                request_permissions([
                    Permission.ACCESS_FINE_LOCATION,
                    Permission.ACCESS_COARSE_LOCATION,
                    Permission.INTERNET
                ])

            # ... [Rest of location code] ...

        except Exception as e:
            print(f"Permission error: {e}")
            self.fetch_weather(48.4, 10.0, False)

    def reverse_geocode(self, lat, lon, used_gps):
        try:
            # Add proper user agent for Nominatim
            headers = {
                "User-Agent": "MyWeatherApp/1.0 ([email protected])"
            }
            # ... [Rest of geocode code] ...

        except Exception as e:
            print(f"Geocode error: {e}")
            Clock.schedule_once(lambda dt: setattr(
                self.ids.location_label,
                'text',
                f"Approximate Location\n({lat:.2f}, {lon:.2f})"
            ))

    def update_hourly_forecast(self, times, temps):
        try:
            # Limit to 12 hours for better mobile performance
            times = times[:12]
            temps = temps[:12]

            # ... [Rest of forecast code] ...

        except Exception as e:
            print(f"Forecast error: {e}")
            self.ids.hourly_forecast_container.clear_widgets()

    def show_error(self, message):
        Clock.schedule_once(lambda dt: super().show_error(message))
        with open("weather_errors.log", "a") as f:
            f.write(f"{datetime.now()} - {message}\n")

# ... [Keep rest of the class] ...