[lvgl] Roller and Dropdown enhancements; (#7608)

esphome/components/lvgl/__init__.py

@@ -271,7 +271,8 @@ async def to_code(config):
         await disp_update(f"{lv_component}->get_disp()", config)
     # At this point only the setup code should be generated
     assert LvContext.added_lambda_count == 1
-    Widget.set_completed()
+    # Set this directly since we are limited in how many methods can be added to the Widget class.
+    Widget.widgets_completed = True
     async with LvContext(lv_component):
         await generate_triggers(lv_component)
         await generate_page_triggers(lv_component, config)

esphome/components/lvgl/defines.py

@@ -477,6 +477,7 @@ CONF_ROWS = "rows"
 CONF_SCALE_LINES = "scale_lines"
 CONF_SCROLLBAR_MODE = "scrollbar_mode"
 CONF_SELECTED_INDEX = "selected_index"
+CONF_SELECTED_TEXT = "selected_text"
 CONF_SHOW_SNOW = "show_snow"
 CONF_SPIN_TIME = "spin_time"
 CONF_SRC = "src"

esphome/components/lvgl/lvgl_esphome.cpp

@@ -5,6 +5,8 @@
 #include "lvgl_hal.h"
 #include "lvgl_esphome.h"
 
+#include <numeric>
+
 namespace esphome {
 namespace lvgl {
 static const char *const TAG = "lvgl";
@@ -263,6 +265,39 @@ LVEncoderListener::LVEncoderListener(lv_indev_type_t type, uint16_t lpt, uint16_
 }
 #endif  // USE_LVGL_KEY_LISTENER
 
+#if defined(USE_LVGL_DROPDOWN) || defined(LV_USE_ROLLER)
+std::string LvSelectable::get_selected_text() {
+  auto selected = this->get_selected_index();
+  if (selected >= this->options_.size())
+    return "";
+  return this->options_[selected];
+}
+
+static std::string join_string(std::vector<std::string> options) {
+  return std::accumulate(
+      options.begin(), options.end(), std::string(),
+      [](const std::string &a, const std::string &b) -> std::string { return a + (a.length() > 0 ? "\n" : "") + b; });
+}
+
+void LvSelectable::set_selected_text(const std::string &text, lv_anim_enable_t anim) {
+  auto index = std::find(this->options_.begin(), this->options_.end(), text);
+  if (index != this->options_.end()) {
+    this->set_selected_index(index - this->options_.begin(), anim);
+    lv_event_send(this->obj, lv_api_event, nullptr);
+  }
+}
+
+void LvSelectable::set_options(std::vector<std::string> options) {
+  auto index = this->get_selected_index();
+  if (index >= options.size())
+    index = options.size() - 1;
+  this->options_ = std::move(options);
+  this->set_option_string(join_string(this->options_).c_str());
+  lv_event_send(this->obj, LV_EVENT_REFRESH, nullptr);
+  this->set_selected_index(index, LV_ANIM_OFF);
+}
+#endif  // USE_LVGL_DROPDOWN || LV_USE_ROLLER
+
 #ifdef USE_LVGL_BUTTONMATRIX
 void LvButtonMatrixType::set_obj(lv_obj_t *lv_obj) {
   LvCompound::set_obj(lv_obj);

esphome/components/lvgl/lvgl_esphome.h

@@ -18,11 +18,9 @@
 #include "esphome/core/component.h"
 #include "esphome/core/log.h"
 #include <lvgl.h>
-#include <vector>
 #include <map>
-#ifdef USE_LVGL_IMAGE
+#include <utility>
-#include "esphome/components/image/image.h"
+#include <vector>
-#endif  // USE_LVGL_IMAGE
 
 #ifdef USE_LVGL_FONT
 #include "esphome/components/font/font.h"
@@ -246,6 +244,7 @@ class LVEncoderListener : public Parented<LvglComponent> {
  public:
   LVEncoderListener(lv_indev_type_t type, uint16_t lpt, uint16_t lprt);
 
+#ifdef USE_BINARY_SENSOR
   void set_left_button(binary_sensor::BinarySensor *left_button) {
     left_button->add_on_state_callback([this](bool state) { this->event(LV_KEY_LEFT, state); });
   }
@@ -256,6 +255,7 @@ class LVEncoderListener : public Parented<LvglComponent> {
   void set_enter_button(binary_sensor::BinarySensor *enter_button) {
     enter_button->add_on_state_callback([this](bool state) { this->event(LV_KEY_ENTER, state); });
   }
+#endif
 
 #ifdef USE_LVGL_ROTARY_ENCODER
   void set_sensor(rotary_encoder::RotaryEncoderSensor *sensor) {
@@ -292,6 +292,48 @@ class LVEncoderListener : public Parented<LvglComponent> {
 };
 #endif  //  USE_LVGL_KEY_LISTENER
 
+#if defined(USE_LVGL_DROPDOWN) || defined(LV_USE_ROLLER)
+class LvSelectable : public LvCompound {
+ public:
+  virtual size_t get_selected_index() = 0;
+  virtual void set_selected_index(size_t index, lv_anim_enable_t anim) = 0;
+  void set_selected_text(const std::string &text, lv_anim_enable_t anim);
+  std::string get_selected_text();
+  std::vector<std::string> get_options() { return this->options_; }
+  void set_options(std::vector<std::string> options);
+
+ protected:
+  virtual void set_option_string(const char *options) = 0;
+  std::vector<std::string> options_{};
+};
+
+#ifdef USE_LVGL_DROPDOWN
+class LvDropdownType : public LvSelectable {
+ public:
+  size_t get_selected_index() override { return lv_dropdown_get_selected(this->obj); }
+  void set_selected_index(size_t index, lv_anim_enable_t anim) override { lv_dropdown_set_selected(this->obj, index); }
+
+ protected:
+  void set_option_string(const char *options) override { lv_dropdown_set_options(this->obj, options); }
+};
+#endif  // USE_LVGL_DROPDOWN
+
+#ifdef USE_LVGL_ROLLER
+class LvRollerType : public LvSelectable {
+ public:
+  size_t get_selected_index() override { return lv_roller_get_selected(this->obj); }
+  void set_selected_index(size_t index, lv_anim_enable_t anim) override {
+    lv_roller_set_selected(this->obj, index, anim);
+  }
+  void set_mode(lv_roller_mode_t mode) { this->mode_ = mode; }
+
+ protected:
+  void set_option_string(const char *options) override { lv_roller_set_options(this->obj, options, this->mode_); }
+  lv_roller_mode_t mode_{LV_ROLLER_MODE_NORMAL};
+};
+#endif
+#endif  // defined(USE_LVGL_DROPDOWN) || defined(LV_USE_ROLLER)
+
 #ifdef USE_LVGL_BUTTONMATRIX
 class LvButtonMatrixType : public key_provider::KeyProvider, public LvCompound {
  public:

esphome/components/lvgl/schemas.py

@@ -216,7 +216,7 @@ def automation_schema(typ: LvType):
         events = df.LV_EVENT_TRIGGERS + (CONF_ON_VALUE,)
     else:
         events = df.LV_EVENT_TRIGGERS
-    args = [typ.get_arg_type()] if isinstance(typ, LvType) else []
+    args = typ.get_arg_type() if isinstance(typ, LvType) else []
     args.append(lv_event_t_ptr)
     return {
         cv.Optional(event): validate_automation(

esphome/components/lvgl/select/__init__.py

@@ -3,18 +3,10 @@ from esphome.components import select
 import esphome.config_validation as cv
 from esphome.const import CONF_OPTIONS
 
-from ..defines import CONF_ANIMATED, CONF_LVGL_ID, CONF_WIDGET
+from ..defines import CONF_ANIMATED, CONF_LVGL_ID, CONF_WIDGET, literal
-from ..lvcode import (
+from ..lvcode import LvContext
-    API_EVENT,
-    EVENT_ARG,
-    UPDATE_EVENT,
-    LambdaContext,
-    LvContext,
-    lv,
-    lv_add,
-)
 from ..schemas import LVGL_SCHEMA
-from ..types import LV_EVENT, LvSelect, lvgl_ns
+from ..types import LvSelect, lvgl_ns
 from ..widgets import get_widgets, wait_for_widgets
 
 LVGLSelect = lvgl_ns.class_("LVGLSelect", select.Select)
@@ -38,20 +30,10 @@ async def to_code(config):
     selector = await select.new_select(config, options=options)
     paren = await cg.get_variable(config[CONF_LVGL_ID])
     await wait_for_widgets()
-    async with LambdaContext(EVENT_ARG) as pub_ctx:
-        pub_ctx.add(selector.publish_index(widget.get_value()))
-    async with LambdaContext([(cg.uint16, "v")]) as control:
-        await widget.set_property("selected", "v", animated=config[CONF_ANIMATED])
-        lv.event_send(widget.obj, API_EVENT, cg.nullptr)
-        control.add(selector.publish_index(widget.get_value()))
     async with LvContext(paren) as ctx:
-        lv_add(selector.set_control_lambda(await control.get_lambda()))
         ctx.add(
-            paren.add_event_cb(
+            selector.set_widget(
-                widget.obj,
+                widget.var,
-                await pub_ctx.get_lambda(),
+                literal("LV_ANIM_ON" if config[CONF_ANIMATED] else "LV_ANIM_OFF"),
-                LV_EVENT.VALUE_CHANGED,
-                UPDATE_EVENT,
             )
         )
-        lv_add(selector.publish_index(widget.get_value()))

esphome/components/lvgl/select/lvgl_select.h

@@ -6,58 +6,52 @@
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 #include "esphome/core/preferences.h"
+#include "../lvgl.h"
 
 namespace esphome {
 namespace lvgl {
 
-static std::vector<std::string> split_string(const std::string &str) {
-  std::vector<std::string> strings;
-  auto delimiter = std::string("\n");
-
-  std::string::size_type pos;
-  std::string::size_type prev = 0;
-  while ((pos = str.find(delimiter, prev)) != std::string::npos) {
-    strings.push_back(str.substr(prev, pos - prev));
-    prev = pos + delimiter.size();
-  }
-
-  // To get the last substring (or only, if delimiter is not found)
-  strings.push_back(str.substr(prev));
-
-  return strings;
-}
-
 class LVGLSelect : public select::Select {
  public:
-  void set_control_lambda(std::function<void(size_t)> lambda) {
+  void set_widget(LvSelectable *widget, lv_anim_enable_t anim = LV_ANIM_OFF) {
-    this->control_lambda_ = std::move(lambda);
+    this->widget_ = widget;
+    this->anim_ = anim;
+    this->set_options_();
+    lv_obj_add_event_cb(
+        this->widget_->obj,
+        [](lv_event_t *e) {
+          auto *it = static_cast<LVGLSelect *>(e->user_data);
+          it->set_options_();
+        },
+        LV_EVENT_REFRESH, this);
     if (this->initial_state_.has_value()) {
       this->control(this->initial_state_.value());
       this->initial_state_.reset();
     }
+    this->publish();
+    auto lamb = [](lv_event_t *e) {
+      auto *self = static_cast<LVGLSelect *>(e->user_data);
+      self->publish();
+    };
+    lv_obj_add_event_cb(this->widget_->obj, lamb, LV_EVENT_VALUE_CHANGED, this);
+    lv_obj_add_event_cb(this->widget_->obj, lamb, lv_update_event, this);
   }
 
-  void publish_index(size_t index) {
+  void publish() { this->publish_state(this->widget_->get_selected_text()); }
-    auto value = this->at(index);
-    if (value)
-      this->publish_state(value.value());
-  }
-
-  void set_options(const char *str) { this->traits.set_options(split_string(str)); }
 
  protected:
   void control(const std::string &value) override {
-    if (this->control_lambda_ != nullptr) {
+    if (this->widget_ != nullptr) {
-      auto index = index_of(value);
+      this->widget_->set_selected_text(value, this->anim_);
-      if (index)
-        this->control_lambda_(index.value());
     } else {
-      this->initial_state_ = value.c_str();
+      this->initial_state_ = value;
     }
   }
+  void set_options_() { this->traits.set_options(this->widget_->get_options()); }
 
-  std::function<void(size_t)> control_lambda_{};
+  LvSelectable *widget_{};
-  optional<const char *> initial_state_{};
+  optional<std::string> initial_state_{};
+  lv_anim_enable_t anim_{LV_ANIM_OFF};
 };
 
 }  // namespace lvgl

esphome/components/lvgl/trigger.py

@@ -67,9 +67,9 @@ async def add_trigger(conf, lv_component, w, *events):
     tid = conf[CONF_TRIGGER_ID]
     trigger = cg.new_Pvariable(tid)
     args = w.get_args() + [(lv_event_t_ptr, "event")]
-    value = w.get_value()
+    value = w.get_values()
     await automation.build_automation(trigger, args, conf)
     async with LambdaContext(EVENT_ARG, where=tid) as context:
         with LvConditional(w.is_selected()):
-            lv_add(trigger.trigger(value, literal("event")))
+            lv_add(trigger.trigger(*value, literal("event")))
     lv_add(lv_component.add_event_cb(w.obj, await context.get_lambda(), *events))

esphome/components/lvgl/types.py

@@ -18,7 +18,9 @@ class LvType(cg.MockObjClass):
         self.value_property = None
 
     def get_arg_type(self):
-        return self.args[0][0] if len(self.args) else None
+        if len(self.args) == 0:
+            return None
+        return [arg[0] for arg in self.args]
 
 
 class LvNumber(LvType):
@@ -92,11 +94,13 @@ class LvBoolean(LvType):
 
 class LvSelect(LvType):
     def __init__(self, *args, **kwargs):
+        parens = kwargs.pop("parents", ()) + (LvCompound,)
         super().__init__(
             *args,
-            largs=[(cg.int_, "x")],
+            largs=[(cg.int_, "x"), (cg.std_string, "text")],
-            lvalue=lambda w: w.get_property("selected"),
+            lvalue=lambda w: [w.var.get_selected_index(), w.var.get_selected_text()],
             has_on_value=True,
+            parents=parens,
             **kwargs,
         )
 

esphome/components/lvgl/widgets/__init__.py

@@ -70,14 +70,11 @@ class LvScrActType(WidgetType):
 class Widget:
     """
     Represents a Widget.
+    This class has a lot of methods. Adding any more runs foul of lint checks ("too many public methods").
     """
 
     widgets_completed = False
 
-    @staticmethod
-    def set_completed():
-        Widget.widgets_completed = True
-
     def __init__(self, var, wtype: WidgetType, config: dict = None):
         self.var = var
         self.type = wtype
@@ -179,9 +176,20 @@ class Widget:
 
     def get_value(self):
         if isinstance(self.type.w_type, LvType):
-            return self.type.w_type.value(self)
+            result = self.type.w_type.value(self)
+            if isinstance(result, list):
+                return result[0]
+            return result
         return self.obj
 
+    def get_values(self):
+        if isinstance(self.type.w_type, LvType):
+            result = self.type.w_type.value(self)
+            if isinstance(result, list):
+                return result
+            return [result]
+        return [self.obj]
+
     def get_number_value(self):
         value = self.type.mock_obj.get_value(self.obj)
         if self.scale == 1.0:

esphome/components/lvgl/widgets/dropdown.py

@@ -1,4 +1,3 @@
-import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import CONF_OPTIONS
 
@@ -9,21 +8,24 @@ from ..defines import (
     CONF_SCROLLBAR,
     CONF_SELECTED,
     CONF_SELECTED_INDEX,
+    CONF_SELECTED_TEXT,
     CONF_SYMBOL,
     DIRECTIONS,
     literal,
 )
+from ..helpers import lvgl_components_required
 from ..lv_validation import lv_int, lv_text, option_string
-from ..lvcode import LocalVariable, lv, lv_expr
+from ..lvcode import LocalVariable, lv, lv_add, lv_expr
 from ..schemas import part_schema
-from ..types import LvSelect, LvType, lv_obj_t
+from ..types import LvCompound, LvSelect, LvType, lv_obj_t
 from . import Widget, WidgetType, set_obj_properties
 from .label import CONF_LABEL
 
 CONF_DROPDOWN = "dropdown"
 CONF_DROPDOWN_LIST = "dropdown_list"
 
-lv_dropdown_t = LvSelect("lv_dropdown_t")
+lv_dropdown_t = LvSelect("LvDropdownType", parents=(LvCompound,))
+
 lv_dropdown_list_t = LvType("lv_dropdown_list_t")
 dropdown_list_spec = WidgetType(
     CONF_DROPDOWN_LIST, lv_dropdown_list_t, (CONF_MAIN, CONF_SELECTED, CONF_SCROLLBAR)
@@ -32,7 +34,8 @@ dropdown_list_spec = WidgetType(
 DROPDOWN_BASE_SCHEMA = cv.Schema(
     {
         cv.Optional(CONF_SYMBOL): lv_text,
-        cv.Optional(CONF_SELECTED_INDEX): cv.templatable(cv.int_),
+        cv.Exclusive(CONF_SELECTED_INDEX, CONF_SELECTED_TEXT): lv_int,
+        cv.Exclusive(CONF_SELECTED_TEXT, CONF_SELECTED_TEXT): lv_text,
         cv.Optional(CONF_DIR, default="BOTTOM"): DIRECTIONS.one_of,
         cv.Optional(CONF_DROPDOWN_LIST): part_schema(dropdown_list_spec),
     }
@@ -44,6 +47,12 @@ DROPDOWN_SCHEMA = DROPDOWN_BASE_SCHEMA.extend(
     }
 )
 
+DROPDOWN_UPDATE_SCHEMA = DROPDOWN_BASE_SCHEMA.extend(
+    {
+        cv.Optional(CONF_OPTIONS): cv.ensure_list(option_string),
+    }
+)
+
 
 class DropdownType(WidgetType):
     def __init__(self):
@@ -52,18 +61,21 @@ class DropdownType(WidgetType):
             lv_dropdown_t,
             (CONF_MAIN, CONF_INDICATOR),
             DROPDOWN_SCHEMA,
-            DROPDOWN_BASE_SCHEMA,
+            modify_schema=DROPDOWN_UPDATE_SCHEMA,
         )
 
     async def to_code(self, w: Widget, config):
+        lvgl_components_required.add(CONF_DROPDOWN)
         if options := config.get(CONF_OPTIONS):
-            text = cg.safe_exp("\n".join(options))
+            lv_add(w.var.set_options(options))
-            lv.dropdown_set_options(w.obj, text)
         if symbol := config.get(CONF_SYMBOL):
-            lv.dropdown_set_symbol(w.obj, await lv_text.process(symbol))
+            lv.dropdown_set_symbol(w.var.obj, await lv_text.process(symbol))
         if (selected := config.get(CONF_SELECTED_INDEX)) is not None:
             value = await lv_int.process(selected)
-            lv.dropdown_set_selected(w.obj, value)
+            lv_add(w.var.set_selected_index(value, literal("LV_ANIM_OFF")))
+        if (selected := config.get(CONF_SELECTED_TEXT)) is not None:
+            value = await lv_text.process(selected)
+            lv_add(w.var.set_selected_text(value, literal("LV_ANIM_OFF")))
         if dirn := config.get(CONF_DIR):
             lv.dropdown_set_dir(w.obj, literal(dirn))
         if dlist := config.get(CONF_DROPDOWN_LIST):

esphome/components/lvgl/widgets/obj.py

@@ -1,7 +1,7 @@
 from esphome import automation
 
 from ..automation import update_to_code
-from ..defines import CONF_MAIN, CONF_OBJ
+from ..defines import CONF_MAIN, CONF_OBJ, CONF_SCROLLBAR
 from ..schemas import create_modify_schema
 from ..types import ObjUpdateAction, WidgetType, lv_obj_t
 
@@ -12,7 +12,9 @@ class ObjType(WidgetType):
     """
 
     def __init__(self):
-        super().__init__(CONF_OBJ, lv_obj_t, (CONF_MAIN,), schema={}, modify_schema={})
+        super().__init__(
+            CONF_OBJ, lv_obj_t, (CONF_MAIN, CONF_SCROLLBAR), schema={}, modify_schema={}
+        )
 
     async def to_code(self, w, config):
         return []

esphome/components/lvgl/widgets/roller.py

@@ -1,4 +1,3 @@
-import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import CONF_MODE, CONF_OPTIONS
 
@@ -7,36 +6,40 @@ from ..defines import (
     CONF_MAIN,
     CONF_SELECTED,
     CONF_SELECTED_INDEX,
+    CONF_SELECTED_TEXT,
     CONF_VISIBLE_ROW_COUNT,
     ROLLER_MODES,
     literal,
 )
-from ..lv_validation import animated, lv_int, option_string
+from ..helpers import lvgl_components_required
-from ..lvcode import lv
+from ..lv_validation import animated, lv_int, lv_text, option_string
+from ..lvcode import lv_add
 from ..types import LvSelect
 from . import WidgetType
 from .label import CONF_LABEL
 
 CONF_ROLLER = "roller"
-lv_roller_t = LvSelect("lv_roller_t")
+lv_roller_t = LvSelect("LvRollerType")
 
 ROLLER_BASE_SCHEMA = cv.Schema(
     {
-        cv.Optional(CONF_SELECTED_INDEX): cv.templatable(cv.int_),
+        cv.Exclusive(CONF_SELECTED_INDEX, CONF_SELECTED_TEXT): lv_int,
+        cv.Exclusive(CONF_SELECTED_TEXT, CONF_SELECTED_TEXT): lv_text,
         cv.Optional(CONF_VISIBLE_ROW_COUNT): lv_int,
+        cv.Optional(CONF_MODE): ROLLER_MODES.one_of,
     }
 )
 
 ROLLER_SCHEMA = ROLLER_BASE_SCHEMA.extend(
     {
         cv.Required(CONF_OPTIONS): cv.ensure_list(option_string),
-        cv.Optional(CONF_MODE, default="NORMAL"): ROLLER_MODES.one_of,
     }
 )
 
 ROLLER_MODIFY_SCHEMA = ROLLER_BASE_SCHEMA.extend(
     {
         cv.Optional(CONF_ANIMATED, default=True): animated,
+        cv.Optional(CONF_OPTIONS): cv.ensure_list(option_string),
     }
 )
 
@@ -52,15 +55,19 @@ class RollerType(WidgetType):
         )
 
     async def to_code(self, w, config):
+        lvgl_components_required.add(CONF_ROLLER)
+        if mode := config.get(CONF_MODE):
+            mode = await ROLLER_MODES.process(mode)
+            lv_add(w.var.set_mode(mode))
         if options := config.get(CONF_OPTIONS):
-            mode = await ROLLER_MODES.process(config[CONF_MODE])
+            lv_add(w.var.set_options(options))
-            text = cg.safe_exp("\n".join(options))
+        animopt = literal(config.get(CONF_ANIMATED, "LV_ANIM_OFF"))
-            lv.roller_set_options(w.obj, text, mode)
+        if (selected := config.get(CONF_SELECTED_INDEX)) is not None:
-        animopt = literal(config.get(CONF_ANIMATED) or "LV_ANIM_OFF")
-        if CONF_SELECTED_INDEX in config:
-            if selected := config[CONF_SELECTED_INDEX]:
             value = await lv_int.process(selected)
-                lv.roller_set_selected(w.obj, value, animopt)
+            lv_add(w.var.set_selected_index(value, animopt))
+        if (selected := config.get(CONF_SELECTED_TEXT)) is not None:
+            value = await lv_text.process(selected)
+            lv_add(w.var.set_selected_text(value, animopt))
         await w.set_property(
             CONF_VISIBLE_ROW_COUNT,
             await lv_int.process(config.get(CONF_VISIBLE_ROW_COUNT)),

esphome/components/lvgl/widgets/tileview.py

@@ -9,6 +9,7 @@ from ..defines import (
     CONF_COLUMN,
     CONF_DIR,
     CONF_MAIN,
+    CONF_SCROLLBAR,
     CONF_TILE_ID,
     CONF_TILES,
     TILE_DIRECTIONS,
@@ -56,7 +57,7 @@ class TileviewType(WidgetType):
         super().__init__(
             CONF_TILEVIEW,
             lv_tileview_t,
-            (CONF_MAIN,),
+            (CONF_MAIN, CONF_SCROLLBAR),
             schema=TILEVIEW_SCHEMA,
             modify_schema={},
         )

esphome/core/defines.h

@@ -44,10 +44,12 @@
 #define USE_LVGL_ANIMIMG
 #define USE_LVGL_BINARY_SENSOR
 #define USE_LVGL_BUTTONMATRIX
+#define USE_LVGL_DROPDOWN
 #define USE_LVGL_FONT
 #define USE_LVGL_IMAGE
 #define USE_LVGL_KEY_LISTENER
 #define USE_LVGL_KEYBOARD
+#define USE_LVGL_ROLLER
 #define USE_LVGL_ROTARY_ENCODER
 #define USE_LVGL_TOUCHSCREEN
 #define USE_MD5

tests/components/lvgl/lvgl-package.yaml

@@ -138,6 +138,19 @@ lvgl:
         flex_align_cross: start
         flex_align_track: end
       widgets:
+        - roller:
+            id: lv_roller
+            visible_row_count: 2
+            anim_time: 500ms
+            options:
+              - Nov
+              - Dec
+            selected_index: 1
+            on_value:
+              then:
+                - logger.log:
+                    format: "Roller changed = %d: %s"
+                    args: [x, text.c_str()]
         - animimg:
             height: 60
             id: anim_img
@@ -245,9 +258,13 @@ lvgl:
             y: 120
         - buttonmatrix:
             on_press:
-              logger.log:
+              then:
+                - logger.log:
                     format: "matrix button pressed: %d"
                     args: ["x"]
+                - lvgl.widget.show: b_matrix
+                - lvgl.widget.redraw:
+
             on_long_press:
               lvgl.matrix.button.update:
                 id: [button_a, button_e, button_c]
@@ -629,8 +646,6 @@ lvgl:
                         - First
                         - Second
                         - Third
-                        - 4th
-                        - 5th
                         - 6th
                         - 7th
                         - 8th
@@ -651,8 +666,8 @@ lvgl:
                           bg_color: 0xFF
                       on_value:
                         logger.log:
-                          format: "Dropdown changed = %d"
+                          format: "Dropdown changed = %d: %s"
-                          args: [x]
+                          args: [x, text.c_str()]
                       on_cancel:
                         logger.log:
                           format: "Dropdown closed = %d"
@@ -661,6 +676,11 @@ lvgl:
                       src: cat_image
                       on_click:
                         then:
+                          - lvgl.dropdown.update:
+                              id: lv_dropdown
+                              options:
+                                ["First", "Second", "Third", "4th", "5th", "6th", "7th", "8th", "9th", "10th", "11th"]
+                              selected_index: 3
                           - logger.log: Cat image clicked
                           - lvgl.tabview.select:
                               id: tabview_id