Deduped picker variable

1. attribute is option, so needs a different template in the API call when absent.
2. Automatically derive the format string from the picker step value for any precision of step.
3. Changed all Lang.String representations of numbers to Lang.Number or Lang.Float. I'm keen to remove the use of strings to hold a numeric value.
4. Tidied up and completed some code comments.
5. Adjusted the JSON schema definition. This is still not finished as the 'picker' object is required for 'numeric' menu items and must not be present for the others. Additional schema changes are required for greater precision.
6. Moved fields over from 'data' to 'picker'.

config.schema.json

@@ -25,13 +25,6 @@
   "$defs": {
     "toggle": {
       "type": "object",
-      "examples": [
-        {
-          "type": "toggle",
-          "name": "Example",
-          "entity": "switch.example"
-        }
-      ],
       "properties": {
         "entity": {
           "$ref": "#/$defs/entity"
@@ -177,18 +170,6 @@
     },
     "tap": {
       "type": "object",
-      "examples": [
-        {
-          "type": "tap",
-          "name": "Example",
-          "tap_action": {
-            "service": "notify.notify",
-            "data": {
-              "message": "Example"
-            }
-          }
-        }
-      ],
       "properties": {
         "entity": {
           "$ref": "#/$defs/entity"
@@ -240,14 +221,6 @@
     },
     "group": {
       "type": "object",
-      "examples": [
-        {
-          "type": "group",
-          "name": "Example",
-          "title": "Example",
-          "items": []
-        }
-      ],
       "properties": {
         "entity": {
           "$ref": "#/$defs/entity",
@@ -288,105 +261,6 @@
     },
     "numeric": {
       "type": "object",
-      "examples": [
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "light.example",
-          "attribute": "brightness",
-          "service": "light.turn_on",
-          "service_attribute": "brightness",
-          "min": 0,
-          "max": 255,
-          "step": 1
-        },
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "input_number.example",
-          "service": "input_number.set_value",
-          "service_attribute": "value",
-          "min": 0,
-          "max": 100,
-          "step": 1
-        },
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "number.example",
-          "service": "number.set_value",
-          "service_attribute": "value",
-          "min": 0,
-          "max": 100,
-          "step": 1
-        },
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "fan.example",
-          "attribute": "percentage",
-          "service": "fan.set_percentage",
-          "service_attribute": "percentage",
-          "min": 0,
-          "max": 100,
-          "step": 1
-        },
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "valve.example",
-          "attribute": "position",
-          "service": "valve.set_valve_position",
-          "service_attribute": "position",
-          "min": 0,
-          "max": 100,
-          "step": 1
-        },
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "cover.example",
-          "attribute": "position",
-          "service": "cover.set_position",
-          "service_attribute": "position",
-          "min": 0,
-          "max": 100,
-          "step": 1
-        },
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "cover.example",
-          "attribute": "tilt_position",
-          "service": "cover.set_tilt_position",
-          "service_attribute": "tilt_position",
-          "min": 0,
-          "max": 100,
-          "step": 1
-        },
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "media_player.example",
-          "attribute": "volume_level",
-          "service": "media_player.volume_set",
-          "service_attribute": "volume_level",
-          "min": 0,
-          "max": 1,
-          "step": 0.01
-        },
-        {
-          "type": "numeric",
-          "name": "Example",
-          "entity": "climate.example",
-          "attribute": "temperature",
-          "service": "climate.set_temperature",
-          "service_attribute": "temperature",
-          "min": 0,
-          "max": 100,
-          "step": 1
-        }
-      ],
       "allOf": [
         {
           "properties": {
@@ -409,49 +283,14 @@
             "exit": {
               "$ref": "#/$defs/exit"
             },
-            "min": {
-              "type": "number",
-              "title": "Minimum value"
-            },
-            "max": {
-              "type": "number",
-              "title": "Maximum value"
-            },
-            "step": {
-              "type": "number",
-              "title": "Step size"
-            },
-            "decimals": {
-              "type": "number",
-              "title": "Number of decimals to display",
-              "minimum": 0,
-              "maximum": 10,
-              "default": 1
-            },
             "entity": {
               "$ref": "#/$defs/entity"
-            },
-            "attribute": {
-              "type": "string",
-              "title": "Attribute on the entity with the current numeric value. To use the state of the entity, do not specify."
-            },
-            "service": {
-              "$ref": "#/$defs/service"
-            },
-            "service_attribute": {
-              "type": "string",
-              "title": "Attribute on the service data for the value to set."
             }
           },
           "required": [
             "name",
             "type",
-            "min",
-            "max",
-            "step",
-            "entity",
-            "service",
-            "service_attribute"
+            "entity"
           ],
           "additionalProperties": false
         },
@@ -476,7 +315,7 @@
               "service": {
                 "const": "light.turn_on"
               },
-              "service_attribute": {
+              "data_attribute": {
                 "const": "brightness"
               },
               "min": {
@@ -504,7 +343,7 @@
                 "service": {
                   "const": "input_number.set_value"
                 },
-                "service_attribute": {
+                "data_attribute": {
                   "const": "value"
                 }
               },
@@ -530,7 +369,7 @@
                   "service": {
                     "const": "number.set_value"
                   },
-                  "service_attribute": {
+                  "data_attribute": {
                     "const": "value"
                   }
                 },
@@ -556,7 +395,7 @@
                     "service": {
                       "const": "fan.set_percentage"
                     },
-                    "service_attribute": {
+                    "data_attribute": {
                       "const": "percentage"
                     },
                     "min": {
@@ -583,7 +422,7 @@
                       "service": {
                         "const": "valve.set_valve_position"
                       },
-                      "service_attribute": {
+                      "data_attribute": {
                         "const": "position"
                       },
                       "min": {
@@ -610,7 +449,7 @@
                         "service": {
                           "const": "cover.set_position"
                         },
-                        "service_attribute": {
+                        "data_attribute": {
                           "const": "position"
                         },
                         "min": {
@@ -637,7 +476,7 @@
                           "service": {
                             "const": "cover.set_tilt_position"
                           },
-                          "service_attribute": {
+                          "data_attribute": {
                             "const": "tilt_position"
                           },
                           "min": {
@@ -664,7 +503,7 @@
                             "service": {
                               "const": "media_player.volume_set"
                             },
-                            "service_attribute": {
+                            "data_attribute": {
                               "const": "volume_level"
                             },
                             "min": {
@@ -691,7 +530,7 @@
                               "service": {
                                 "const": "climate.set_temperature"
                               },
-                              "service_attribute": {
+                              "data_attribute": {
                                 "const": "temperature"
                               }
                             }
@@ -714,24 +553,210 @@
     "items": {
       "type": "array",
       "items": {
-        "oneOf": [
+        "examples": [
           {
-            "$ref": "#/$defs/toggle"
+            "type": "tap",
+            "name": "Example",
+            "tap_action": {
+              "service": "notify.notify",
+              "data": {
+                "message": "Example"
+              }
+            }
           },
           {
-            "$ref": "#/$defs/template"
+            "type": "toggle",
+            "name": "Example",
+            "entity": "switch.example"
           },
           {
-            "$ref": "#/$defs/tap"
+            "type": "group",
+            "name": "Example",
+            "title": "Example",
+            "items": []
           },
           {
-            "$ref": "#/$defs/info"
+            "type": "numeric",
+            "name": "Example",
+            "entity": "light.example",
+            "attribute": "brightness",
+            "service": "light.turn_on",
+            "data_attribute": "brightness",
+            "min": 0,
+            "max": 255,
+            "step": 1
           },
           {
-            "$ref": "#/$defs/group"
+            "type": "numeric",
+            "name": "Example",
+            "entity": "input_number.example",
+            "service": "input_number.set_value",
+            "data_attribute": "value",
+            "min": 0,
+            "max": 100,
+            "step": 1
           },
           {
-            "$ref": "#/$defs/numeric"
+            "type": "numeric",
+            "name": "Example",
+            "entity": "number.example",
+            "service": "number.set_value",
+            "data_attribute": "value",
+            "min": 0,
+            "max": 100,
+            "step": 1
+          },
+          {
+            "type": "numeric",
+            "name": "Example",
+            "entity": "fan.example",
+            "attribute": "percentage",
+            "service": "fan.set_percentage",
+            "data_attribute": "percentage",
+            "min": 0,
+            "max": 100,
+            "step": 1,
+            "display_format": "%.0f%%"
+          },
+          {
+            "type": "numeric",
+            "name": "Example",
+            "entity": "valve.example",
+            "attribute": "position",
+            "service": "valve.set_valve_position",
+            "data_attribute": "position",
+            "min": 0,
+            "max": 100,
+            "step": 1
+          },
+          {
+            "type": "numeric",
+            "name": "Example",
+            "entity": "cover.example",
+            "attribute": "position",
+            "service": "cover.set_position",
+            "data_attribute": "position",
+            "min": 0,
+            "max": 100,
+            "step": 1
+          },
+          {
+            "type": "numeric",
+            "name": "Example",
+            "entity": "cover.example",
+            "attribute": "tilt_position",
+            "service": "cover.set_tilt_position",
+            "data_attribute": "tilt_position",
+            "min": 0,
+            "max": 100,
+            "step": 1
+          },
+          {
+            "type": "numeric",
+            "name": "Example",
+            "entity": "media_player.example",
+            "attribute": "volume_level",
+            "service": "media_player.volume_set",
+            "data_attribute": "volume_level",
+            "min": 0,
+            "max": 1,
+            "step": 0.01
+          },
+          {
+            "type": "numeric",
+            "name": "Example",
+            "entity": "climate.example",
+            "attribute": "temperature",
+            "service": "climate.set_temperature",
+            "data_attribute": "temperature"
+          }
+        ],
+        "allOf": [
+          {
+            "properties": {
+              "type": {
+                "enum": [
+                  "toggle",
+                  "template",
+                  "tap",
+                  "info",
+                  "group",
+                  "numeric"
+                ]
+              }
+            }
+          },
+          {
+            "if": {
+              "properties": {
+                "type": {
+                  "const": "toggle"
+                }
+              }
+            },
+            "then": {
+              "$ref": "#/$defs/toggle"
+            },
+            "else": {
+              "if": {
+                "properties": {
+                  "type": {
+                    "const": "template"
+                  }
+                }
+              },
+              "then": {
+                "$ref": "#/$defs/template"
+              },
+              "else": {
+                "if": {
+                  "properties": {
+                    "type": {
+                      "const": "tap"
+                    }
+                  }
+                },
+                "then": {
+                  "$ref": "#/$defs/tap"
+                },
+                "else": {
+                  "if": {
+                    "properties": {
+                      "type": {
+                        "const": "info"
+                      }
+                    }
+                  },
+                  "then": {
+                    "$ref": "#/$defs/info"
+                  },
+                  "else": {
+                    "if": {
+                      "properties": {
+                        "type": {
+                          "const": "group"
+                        }
+                      }
+                    },
+                    "then": {
+                      "$ref": "#/$defs/group"
+                    },
+                    "else": {
+                      "if": {
+                        "properties": {
+                          "type": {
+                            "const": "numeric"
+                          }
+                        }
+                      },
+                      "then": {
+                        "$ref": "#/$defs/numeric"
+                      }
+                    }
+                  }
+                }
+              }
+            }
           }
         ]
       }
@@ -755,6 +780,9 @@
       "title": "Action",
       "description": "'confirm' field is optional.",
       "properties": {
+        "picker": {
+          "$ref": "#/$defs/picker"
+        },
         "confirm": {
           "$ref": "#/$defs/confirm"
         },
@@ -763,6 +791,41 @@
         }
       }
     },
+    "picker": {
+      "type": "object",
+      "title": "Number picker configuration",
+      "description": "'attribute' field is optional.",
+      "properties": {
+        "min": {
+          "type": "number",
+          "title": "Minimum Value"
+        },
+        "max": {
+          "type": "number",
+          "title": "Maximum Value"
+        },
+        "step": {
+          "type": "number",
+          "title": "Step Size"
+        },
+        "attribute": {
+          "type": "string",
+          "title": "Attribute on the entity",
+          "description": "Attribute on the entity with the current numeric value. To use the state of the entity, do not specify."
+        },
+        "data_attribute": {
+          "type": "string",
+          "title": "Attribute on the service data",
+          "description": "Attribute on the service data for the value to set."
+        }
+      },
+      "required": [
+        "min",
+        "max",
+        "step",
+        "data_attribute"
+      ]
+    },
     "content": {
       "title": "Home Assistant Template",
       "description": "Jinja2 template defining the text to display. Must be included in an 'info'. Optional in a 'toggle', 'tap' and 'group'. Special characters may not render in the glance context.",
@@ -827,4 +890,4 @@
       "description": "Choose to exit the application after this item has been selected. Disabled (false) by default. N.B. Only actionable menu items can have this field added."
     }
   }
-}
+}

source/HomeAssistantApp.mc

@@ -629,6 +629,12 @@ class HomeAssistantApp extends Application.AppBase {
                             if (item instanceof HomeAssistantToggleMenuItem) {
                                 (item as HomeAssistantToggleMenuItem).updateToggleState(data[i.toString() + "t"]);
                             }
+                            if (item instanceof HomeAssistantNumericMenuItem) {
+                               var s = data[i.toString() + "n"];
+                               if ((s instanceof Lang.Number) or (s instanceof Lang.Float)) {
+                                   (item as HomeAssistantNumericMenuItem).setValue(s);
+                               }
+                            }
                         }
                         if (Settings.getMenuCheck() && Settings.getCacheConfig() && !mIsCacheChecked) {
                             // We are caching the menu configuration, so let's fetch it and check if its been updated.
@@ -723,6 +729,11 @@ class HomeAssistantApp extends Application.AppBase {
                                 "template" => (item as HomeAssistantToggleMenuItem).getToggleTemplate()
                             });
                         }
+                        if (item instanceof HomeAssistantNumericMenuItem) {
+                            mTemplates.put(i.toString() + "n", {
+                                "template" => (item as HomeAssistantNumericMenuItem).getNumericTemplate()
+                            });
+                        }
                     }
                 }
                 // https://developers.home-assistant.io/docs/api/native-app-integration/sending-data/#render-templates
@@ -822,7 +833,7 @@ class HomeAssistantApp extends Application.AppBase {
         var phoneConnected = System.getDeviceSettings().phoneConnected;
         var connectionAvailable = System.getDeviceSettings().connectionAvailable;
 
-        // System.println("API URL = " + Settings.getApiUrl());
+        // System.println("HomeAssistantApp fetchApiStatus(): API URL = " + Settings.getApiUrl());
         if (Settings.getApiUrl().equals("")) {
             mApiStatus = WatchUi.loadResource($.Rez.Strings.Unconfigured) as Lang.String;
             WatchUi.requestUpdate();

source/HomeAssistantMenuItemFactory.mc

@@ -158,7 +158,7 @@ class HomeAssistantMenuItemFactory {
         entity_id as Lang.String?,
         template  as Lang.String?,
         service   as Lang.String?,
-        data      as Lang.Dictionary?,
+        picker    as Lang.Dictionary,
         options   as {
             :exit    as Lang.Boolean,
             :confirm as Lang.Boolean,
@@ -166,25 +166,21 @@ class HomeAssistantMenuItemFactory {
             :icon    as WatchUi.Bitmap
         }
     ) as WatchUi.MenuItem {
+        var data = null;
         if (entity_id != null) {
-            if (data == null) {
-                data = { "entity_id" => entity_id };
-                
-            } else {
-                data.put("entity_id", entity_id);
-            }
-        } 
+            data = { "entity_id" => entity_id };
+        }
         var keys = mMenuItemOptions.keys();
         for (var i = 0; i < keys.size(); i++) {
             options.put(keys[i], mMenuItemOptions.get(keys[i]));
         }
-        options.put(:icon, mTapTypeIcon);    
-        
+        options.put(:icon, mTapTypeIcon);
         return new HomeAssistantNumericMenuItem(
             label,
             template,
             service,
             data,
+            picker,
             options,
             mHomeAssistantService
         );

source/HomeAssistantNumericFactory.mc

@@ -9,80 +9,92 @@
 // tested on a Venu 2 device. The source code is provided at:
 //            https://github.com/house-of-abbey/GarminHomeAssistant.
 //
-// P A Abbey & J D Abbey & Someone0nEarth, 31 October 2023
+// P A Abbey & J D Abbey & @thmichel, 13 October 2025
 //
 //------------------------------------------------------------
 
-import Toybox.Graphics;
-import Toybox.Lang;
-import Toybox.WatchUi;
+using Toybox.Graphics;
+using Toybox.Lang;
+using Toybox.WatchUi;
 
 //! Factory that controls which numbers can be picked
 class HomeAssistantNumericFactory extends WatchUi.PickerFactory {
     // define default values in case not contained in data
-    private var mStart as Lang.Float = 0.0;
-    private var mStop as Lang.Float = 100.0;
-    private var mStep as Lang.Float = 1.0;
-    private var mFormatString as Lang.String = "%.2f";
+    private var mStart        as Lang.Float  = 0.0;
+    private var mStop         as Lang.Float  = 100.0;
+    private var mStep         as Lang.Float  = 1.0;
+    private var mFormatString as Lang.String = "%d";
 
     //! Class Constructor
-    //!
-    public function initialize(data as Lang.Dictionary) {
+    //
+    public function initialize(picker as Lang.Dictionary) {
         PickerFactory.initialize();
 
         // Get values from data
-
-        var val = data.get("start");
+        var val = picker["min"];
         if (val != null) {
             mStart = val.toString().toFloat();
         }
-        val = data.get("stop");
+        val = picker["max"];
         if (val != null) {
             mStop = val.toString().toFloat();
         } 
-        val = data.get("step");
+        val = picker["step"];
         if (val != null) {
             mStep = val.toString().toFloat();
         } 
-       val = data.get("formatString");
-        if (val != null) {
-            mFormatString = val.toString();
-        } 
-
-    }
-
-    //! Get the index of a number item
-    //! @param value The number to get the index of
-    //! @return The index of the number
-    public function getIndex(value as Float) as Number {
-        return ((value / mStep) - mStart).toNumber();
+        if (mStep > 0.0) {
+            var s = mStep;
+            var dp = 0;
+            while (s < 1.0) {
+                s *= 10;
+                dp++;
+                // Assigned inside the loop and in each iteration to avoid clobbering the default '%d'.
+                mFormatString = "%." + dp.toString() + "f";
+            }
+        } else {
+            // The JSON menu definition defined a step size of 0, revert to the default.
+            mStep = 1.0;
+        }
     }
 
     //! Generate a Drawable instance for an item
+    //!
     //! @param index The item index
     //! @param selected true if the current item is selected, false otherwise
     //! @return Drawable for the item
-    public function getDrawable(index as Number, selected as Boolean) as Drawable? {
+    //
+    public function getDrawable(
+        index    as Lang.Number,
+        selected as Lang.Boolean
+    ) as WatchUi.Drawable? {
         var value = getValue(index);
         var text = "No item";
         if (value instanceof Lang.Float) {
             text = value.format(mFormatString);
         }
-        return new WatchUi.Text({:text=>text, :color=>Graphics.COLOR_WHITE, 
-            :locX=>WatchUi.LAYOUT_HALIGN_CENTER, :locY=>WatchUi.LAYOUT_VALIGN_CENTER});
+        return new WatchUi.Text({
+            :text  => text,
+            :color => Graphics.COLOR_WHITE,
+            :locX  => WatchUi.LAYOUT_HALIGN_CENTER,
+            :locY  => WatchUi.LAYOUT_VALIGN_CENTER
+        });
     }
 
     //! Get the value of the item at the given index
+    //!
     //! @param index Index of the item to get the value of
     //! @return Value of the item
-    public function getValue(index as Number) as Object? {
+    //
+    public function getValue(index as Lang.Number) as Lang.Object? {
         return mStart + (index * mStep);
     }
 
     //! Get the number of picker items
+    //!
     //! @return Number of items
-    public function getSize() as Number {
+    //
+    public function getSize() as Lang.Number {
         return ((mStop - mStart) / mStep).toNumber() + 1;
     }
-
 }

source/HomeAssistantNumericMenuItem.mc

@@ -9,7 +9,7 @@
 // tested on a Venu 2 device. The source code is provided at:
 //            https://github.com/house-of-abbey/GarminHomeAssistant.
 //
-// P A Abbey & J D Abbey & Someone0nEarth, 31 October 2023
+// P A Abbey & J D Abbey & @thmichel, 13 October 2025
 //
 //-----------------------------------------------------------------------------------
 
@@ -17,7 +17,6 @@ using Toybox.Lang;
 using Toybox.WatchUi;
 using Toybox.Graphics;
 
-
 //! Menu button with an icon that opens a sub-menu, i.e. group, and optionally renders
 //! a Home Assistant Template.
 //
@@ -28,9 +27,9 @@ class HomeAssistantNumericMenuItem extends HomeAssistantMenuItem {
     private var mExit                 as Lang.Boolean;
     private var mPin                  as Lang.Boolean;
     private var mData                 as Lang.Dictionary?;
-    private var mValue                as Lang.String?;  
-    private var mFormatString         as Lang.String="%.1f";
-
+    private var mPicker               as Lang.Dictionary?;
+    private var mValue                as Lang.Number or Lang.Float = 0;
+    private var mFormatString         as Lang.String = "%d";
 
     //! Class Constructor
     //!
@@ -51,6 +50,7 @@ class HomeAssistantNumericMenuItem extends HomeAssistantMenuItem {
         template  as Lang.String,
         service   as Lang.String?,
         data      as Lang.Dictionary?,
+        picker    as Lang.Dictionary,
         options   as {
             :alignment as WatchUi.MenuItem.Alignment,
             :icon      as Graphics.BitmapType or WatchUi.Drawable or Lang.Symbol,
@@ -62,6 +62,7 @@ class HomeAssistantNumericMenuItem extends HomeAssistantMenuItem {
     ) {
         mService              = service;
         mData                 = data;
+        mPicker               = picker;
         mExit                 = options[:exit];
         mConfirm              = options[:confirm];
         mPin                  = options[:pin];
@@ -74,12 +75,24 @@ class HomeAssistantNumericMenuItem extends HomeAssistantMenuItem {
             {
                 :alignment => options[:alignment],
                 :icon      => options[:icon]
-            } 
+            }
         );
+
+        if (picker != null) {
+            var s = picker["step"];
+            if (s != null) {
+                var step = s.toFloat() as Lang.Float;
+                var dp = 0;
+                while (step < 1.0) {
+                    step *= 10;
+                    dp++;
+                    // Assigned inside the loop and in each iteration to avoid clobbering the default '%d'.
+                    mFormatString = "%." + dp.toString() + "f";
+                }
+            }
+        }
     }
 
-
-
     function callService() as Void {
         var hasTouchScreen = System.getDeviceSettings().isTouchScreen;
         if (mPin && hasTouchScreen) {
@@ -89,10 +102,10 @@ class HomeAssistantNumericMenuItem extends HomeAssistantMenuItem {
                 WatchUi.pushView(
                     pinConfirmationView,
                     new HomeAssistantPinConfirmationDelegate({
-                        :callback    => method(:onConfirm),
-                        :pin         => pin, 
-                        :state       => false,
-                        :view        => pinConfirmationView,
+                        :callback => method(:onConfirm),
+                        :pin      => pin,
+                        :state    => false,
+                        :view     => pinConfirmationView,
                     }),
                     WatchUi.SLIDE_IMMEDIATE
                 );
@@ -130,25 +143,60 @@ class HomeAssistantNumericMenuItem extends HomeAssistantMenuItem {
         }
     }
 
-   
-
     //! Callback function after the menu items selection has been (optionally) confirmed.
     //!
     //! @param b Ignored. It is included in order to match the expected function prototype of the callback method.
     //
     function onConfirm(b as Lang.Boolean) as Void {
-        mHomeAssistantService.call(mService, {"entity_id"  => mData.get("entity_id").toString(),mData.get("valueLabel").toString() => mValue}, mExit);
-        
+        var dataAttribute = mPicker["data_attribute"];
+        if (dataAttribute == null) {
+            //return without call service if no data attribute is set to avoid crash
+            WatchUi.popView(WatchUi.SLIDE_RIGHT);
+            return;
+        }
+        var entity_id = mData["entity_id"];
+        if (entity_id == null) {
+            //return without call service if no entity_id is set to avoid crash
+            WatchUi.popView(WatchUi.SLIDE_RIGHT);
+            return;
+        }
+        mHomeAssistantService.call(
+            mService,
+            {
+                "entity_id"              => entity_id.toString(),
+                dataAttribute.toString() => mValue
+            },
+            mExit
+        );
+        WatchUi.popView(WatchUi.SLIDE_RIGHT);
     }
 
+    //! Return a numeric menu item's fetch state template.
+    //!
+    //! @return A string with the menu item's template definition (or null).
+    //
+    function getNumericTemplate() as Lang.String? {
+        var entity_id = mData["entity_id"];
+        var attribute = mPicker["attribute"] as Lang.String;
+        if (entity_id == null) {
+            return null;
+        } else {
+            if (attribute == null) {
+                // Compiler says: "Statement is not reachable."
+                // This is wrong because a break point on the following line proves it is executed!
+                return "{{states('" + entity_id.toString() + "')}}";
+            } else {
+                return "{{state_attr('" + entity_id.toString() + "','" + attribute + "')}}";
+            }
+        }
+    }
 
- 
     //! Update the menu item's sub label to display the template rendered by Home Assistant.
     //!
     //! @param data The rendered template (typically a string) to be placed in the sub label. This may
     //!             unusually be a number if the SDK interprets the JSON returned by Home Assistant as such.
     //
-    function updateState(data as Lang.String or Lang.Dictionary or Lang.Number or Lang.Float or Null) as Void {
+    public function updateState(data as Lang.String or Lang.Dictionary or Lang.Number or Lang.Float or Null) as Void {
         if (data == null) {
             setSubLabel($.Rez.Strings.Empty);
         } else if(data instanceof Lang.Float) {
@@ -157,26 +205,45 @@ class HomeAssistantNumericMenuItem extends HomeAssistantMenuItem {
         } else if(data instanceof Lang.Number) {
             var f = data.toFloat() as Lang.Float;
             setSubLabel(f.format(mFormatString));
-        } else if (data instanceof Lang.String){
+        } else if (data instanceof Lang.String) {
+            // This should not happen
             setSubLabel(data);
-        }  
-        else {
-            // The template must return a Float, or the item cannot be formatted locally without error.
+        } else {
+            // The template must return a Float on Numeric value, or the item cannot be formatted locally without error.
             setSubLabel(WatchUi.loadResource($.Rez.Strings.TemplateError) as Lang.String);
         }
         WatchUi.requestUpdate();
     }
 
-    //! Set the mValue value.
+    //! Set the Picker's value. Needed to set new value via the Service call
     //!
-    //! Needed to set new value via the Service call
+    //! @param value New value to set.
     //
-    function setValue(value as Lang.String) as Void {
+    public function setValue(value as Lang.Number or Lang.Float) as Void {
         mValue = value;
     }
 
-    function getData() as Lang.Dictionary {
+    //! Get the Picker's value.
+    //!
+    //! Needed to set new value via the Service call
+    //
+    public function getValue() as Lang.Number or Lang.Float {
+        return mValue;
+    }
+
+    //! Get the original 'data' field supplied by the JSON menu.
+    //!
+    //! @return Dictionary containing the 'data' field.
+    //
+    public function getData() as Lang.Dictionary {
         return mData;
     }
-    
+
+    // Get the original 'picker' field supplied by the JSON menu.
+    //!
+    //! @return Dictionary containing the 'picker' field.
+    //
+    public function getPicker() as Lang.Dictionary {
+        return mPicker;
+    }
 }

source/HomeAssistantNumericPicker.mc

@@ -9,7 +9,7 @@
 // tested on a Venu 2 device. The source code is provided at:
 //            https://github.com/house-of-abbey/GarminHomeAssistant.
 //
-// P A Abbey & J D Abbey & Someone0nEarth, 31 October 2023
+// P A Abbey & J D Abbey & @thmichel, 13 October 2025
 //
 //------------------------------------------------------------
 
@@ -20,83 +20,79 @@ using Toybox.System;
 using Toybox.WatchUi;
 
 //! Picker that allows the user to choose a float value
+//
 class HomeAssistantNumericPicker extends WatchUi.Picker {
-
-    private var mFactory as HomeAssistantNumericFactory;
     private var mItem as HomeAssistantNumericMenuItem;
 
     //! Constructor
-    public function initialize(factory as HomeAssistantNumericFactory, haItem as HomeAssistantNumericMenuItem) {
+    //
+    public function initialize(
+        factory as HomeAssistantNumericFactory,
+        haItem  as HomeAssistantNumericMenuItem
+    ) {
+        mItem      = haItem;
+        var picker = mItem.getPicker();
+        var min    = (picker.get("min") as Lang.String).toFloat();
+        var step   = (picker.get("step") as Lang.String).toFloat();
+        var val    = haItem.getValue();
 
-        mFactory = factory;
-
-
-        var pickerOptions = {:pattern=>[mFactory]};
-        mItem=haItem;
-
-
-        var data = mItem.getData();
-
-        var start = 0.0;
-        var val = data.get("start");
-        if (val != null) {
-            start = val.toString().toFloat();
-        } 
-        var step = 1.0;
-        val = data.get("step");
-        if (val != null) {
-            step = val.toString().toFloat();
-        } 
-        val = haItem.getSubLabel().toFloat();
-        var index = ((val -start) / step).toNumber();
-
-        pickerOptions[:defaults]  =[index];
-
-        var title = new WatchUi.Text({:text=>haItem.getLabel(), :locX=>WatchUi.LAYOUT_HALIGN_CENTER,
-                :locY=>WatchUi.LAYOUT_VALIGN_BOTTOM});
-        pickerOptions[:title] = title;
-
-
-        Picker.initialize(pickerOptions);
+        if (min == null) {
+            min = 0.0;
+        }
+        if (step == null) {
+            step = 1.0;
+        }
 
+        WatchUi.Picker.initialize({
+            :title    => new WatchUi.Text({
+                :text => haItem.getLabel(),
+                :locX => WatchUi.LAYOUT_HALIGN_CENTER,
+                :locY => WatchUi.LAYOUT_VALIGN_BOTTOM
+            }),
+            :pattern  => [factory],
+            :defaults => [((val - min) / step).toNumber()]
+        });
     }
 
-
-    //! Get whether the user is done picking
+    //! Called when the user has completed picking.
+    //!
     //! @param value Value user selected
     //! @return true if user is done, false otherwise
-    public function onConfirm(value as Lang.String) as Void {
+    //
+    public function onConfirm(value as Lang.Number or Lang.Float) as Void {
         mItem.setValue(value);
         mItem.callService();
     }
-
-    
 }
 
-//! Responds to a numeric  picker selection or cancellation
+//! Responds to a numeric picker selection or cancellation.
+//
 class HomeAssistantNumericPickerDelegate extends WatchUi.PickerDelegate {
     private var mPicker as HomeAssistantNumericPicker;
 
     //! Constructor
+    //
     public function initialize(picker as HomeAssistantNumericPicker) {
         PickerDelegate.initialize();
         mPicker = picker;
     }
 
     //! Handle a cancel event from the picker
+    //!
     //! @return true if handled, false otherwise
+    //
     public function onCancel() as Lang.Boolean {
         WatchUi.popView(WatchUi.SLIDE_RIGHT);
         return true;
     }
 
     //! Handle a confirm event from the picker
+    //!
     //! @param values The values chosen in the picker
     //! @return true if handled, false otherwise
+    //
     public function onAccept(values as Lang.Array) as Lang.Boolean {
-        var chosenValue = values[0].toString();
-        mPicker.onConfirm(chosenValue);
-        WatchUi.popView(WatchUi.SLIDE_RIGHT);
+        mPicker.onConfirm(values[0]);
         return true;
     }
 }

source/HomeAssistantTapMenuItem.mc

@@ -128,7 +128,7 @@ class HomeAssistantTapMenuItem extends HomeAssistantMenuItem {
     //!
     //! @param b Ignored. It is included in order to match the expected function prototype of the callback method.
     //
-    function onConfirm(b as Lang.Boolean) as Void {
+    public function onConfirm(b as Lang.Boolean) as Void {
         if (mService != null) {
             mHomeAssistantService.call(mService, mData, mExit);
         }

source/HomeAssistantView.mc

@@ -127,18 +127,23 @@ class HomeAssistantView extends WatchUi.Menu2 {
                             ));
                         }
                     } else if (type.equals("numeric") && service != null) {
-                        addItem(HomeAssistantMenuItemFactory.create().numeric(
-                            name,
-                            entity,
-                            content,
-                            service,
-                            data,
-                            {
-                                :exit    => exit,
-                                :confirm => confirm,
-                                :pin     => pin
+                        if (tap_action != null) {
+                            var picker = tap_action.get("picker") as Lang.Dictionary?;
+                            if (picker != null) {
+                                addItem(HomeAssistantMenuItemFactory.create().numeric(
+                                    name,
+                                    entity,
+                                    content,
+                                    service,
+                                    picker,
+                                    {
+                                        :exit    => exit,
+                                        :confirm => confirm,
+                                        :pin     => pin
+                                    }
+                                ));
                             }
-                        ));   
+                        }
                     } else if (type.equals("info") && content != null) {
                         // Cannot exit from a non-actionable information only menu item.
                         addItem(HomeAssistantMenuItemFactory.create().tap(
@@ -167,7 +172,6 @@ class HomeAssistantView extends WatchUi.Menu2 {
     //!
     //! @return An array of menu items that need to be updated periodically to reflect the latest Home Assistant state.
     //
-
     function getItemsToUpdate() as Lang.Array<HomeAssistantToggleMenuItem or HomeAssistantTapMenuItem or HomeAssistantGroupMenuItem  or HomeAssistantNumericMenuItem or Null> {
         var fullList = [];
         var lmi = mItems as Lang.Array<WatchUi.MenuItem>;
@@ -203,8 +207,8 @@ class HomeAssistantView extends WatchUi.Menu2 {
     //! Called when this View is brought to the foreground. Restore
     //! the state of this View and prepare it to be shown. This includes
     //! loading resources into memory.
+    //
     function onShow() as Void {}
-
 }
 
 //! Delegate for the HomeAssistantView.
@@ -272,18 +276,13 @@ class HomeAssistantViewDelegate extends WatchUi.Menu2InputDelegate {
             var haItem = item as HomeAssistantNumericMenuItem;
             // System.println(haItem.getLabel() + " " + haItem.getId());
             // create new view to select new value
-           
-            var mPickerFactory = new HomeAssistantNumericFactory(haItem.getData());
-           
-            var mPicker = new HomeAssistantNumericPicker(mPickerFactory,haItem);
+            var mPickerFactory  = new HomeAssistantNumericFactory((haItem as HomeAssistantNumericMenuItem).getPicker());
+            var mPicker         = new HomeAssistantNumericPicker(mPickerFactory,haItem);
             var mPickerDelegate = new HomeAssistantNumericPickerDelegate(mPicker);
             WatchUi.pushView(mPicker,mPickerDelegate,WatchUi.SLIDE_LEFT);
         } else if (item instanceof HomeAssistantGroupMenuItem) {
             var haMenuItem = item as HomeAssistantGroupMenuItem;
-            // System.println("IconMenu: " + haMenuItem.getLabel() + " " + haMenuItem.getId());
             WatchUi.pushView(haMenuItem.getMenuView(), new HomeAssistantViewDelegate(false), WatchUi.SLIDE_LEFT);
-        // } else {
-        //     System.println(item.getLabel() + " " + item.getId());
         }
     }