error new Control thing?!

.gitignore

@@ -152,9 +152,4 @@ dmypy.json
 # Cython debug symbols
 cython_debug/
 
-# PyCharm
+app/saves/history.json
-#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
-#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
-#  and can be added to the global gitignore or merged into this file.  For a more nuclear
-#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/

app/main.py

@@ -0,0 +1,49 @@
+import flet as ft
+from pages.home import Home
+from pages.history import History
+from pages.settings import Settings
+from flet import app
+
+def main(page: ft.Page):
+    page.title = "Nahrungstracker"
+    page.scroll = True
+
+    history_instance = History()  # Erstellen der History-Instanz
+
+    home = Home(history_instance)  # Übergeben der History-Instanz an Home
+    home.page = page
+
+    settings = Settings()
+    settings.page = page
+
+    def on_navigation_change(e):
+        page.controls.clear()
+        if e.control.selected_index == 0:
+            page.appbar = home.create_appbar()
+            page.add(home)
+        elif e.control.selected_index == 1:
+            page.appbar = ft.AppBar(title=ft.Text("History"))
+            history_instance.update_history_view()
+            page.add(history_instance)  # Hinzufügen der History-Instanz zur Seite
+        elif e.control.selected_index == 2:
+            page.appbar = ft.AppBar(title=ft.Text("Settings"))
+            page.add(settings)
+        page.update()
+
+    #test = ft.NavigationBarDestination(icon=ft.icons.HOME, label="Home")
+    page.navigation_bar = ft.NavigationBar(
+        destinations=[
+            ft.NavigationBarDestination(icon=ft.icons.HOME, label="Home"),
+            ft.NavigationBarDestination(icon=ft.icons.HISTORY, label="History"),
+            ft.NavigationBarDestination(icon=ft.icons.SETTINGS, label="Settings")
+        ],
+        on_change=on_navigation_change,
+    )
+
+    page.appbar = home.create_appbar()
+    page.add(home)
+    page.update()
+
+if __name__ == "__main__":
+    print("run")
+    app(target=main)

app/pages/file_handler.py

@@ -1,7 +1,5 @@
 import json
 
-
-
 def save(jsettings,jhisory):
     with open("saves/settings.json", "w") as data:
             data.write(json.dumps(jsettings,indent=4))

app/pages/history.py

@@ -0,0 +1,60 @@
+import flet as ft
+from datetime import datetime
+from pages import file_handler
+
+def get_time():
+    t = datetime.now()
+    return [t.year, t.month, t.day, t.hour, t.minute, t.second]
+
+class History(ft.Control):
+    def __init__(self) -> None:
+        super().__init__()
+        self.settings, self.history = file_handler.load(self)
+        self.historylist = []
+        self.update_history()
+
+        self.history_container = ft.Container(
+            content=ft.Column(controls=self.historylist)
+        )
+
+        self.controls = [self.history_container]
+
+    def build(self):
+        return ft.Column(self.controls)
+    
+    def addkcal(self, emoji, kcal):
+        self.history.append([emoji, kcal, get_time()])
+        file_handler.save(self.settings, self.history)
+        self.update_history()
+
+    def update_history(self):
+        self.historylist.clear()
+        for h in self.history:
+            self.historylist.insert(0,
+                ft.Container(
+                    content=ft.Column(
+                        controls=[
+                            ft.Row(
+                                [ft.Text(str(f"{h[2][3]}:{h[2][4]}:{h[2][5]} {h[2][2]}.{h[2][1]}.{h[2][0]}"))],
+                                alignment=ft.MainAxisAlignment.END
+                            ),
+                            ft.Row(
+                                [ft.Text(str(f"({h[1]} kcal) {h[0]}"), size=20)],
+                                alignment=ft.MainAxisAlignment.START,
+                            )
+                        ]
+                    ),
+                    bgcolor=ft.colors.INDIGO_600,
+                    border_radius=5,
+                    padding=6
+                )
+            )
+
+    def update_history_view(self):
+        self.update_history()
+        self.controls.clear()
+        self.history_container = ft.Container(
+            content=ft.Column(controls=self.historylist)
+        )
+        self.controls = [self.history_container]
+        print("reset history view")

app/pages/home.py

@@ -1,7 +1,8 @@
 import flet as ft
-import file_handler
-from datetime import datetime
 from random import choice
+from datetime import datetime
+from pages import file_handler
+from .history import History
 
 def get_time():
     t = datetime.now()
@@ -10,20 +11,16 @@ def get_time():
 def random_emoji():
     return choice("🍎🍐🍊🍋🍌🍉🍇🍓🍈🍒🍑🍍🥝🥭🥑🍅🍆🥒🥕🥬🌽🥔🍠🌰🥜🍯🥐🍞🥖🥨🥯🧀🥚🍳🥓🧄🧅🥞🧇🍤🍗🍖🍕🌭🍔🍟🥙🌮🌯🥗🥘🍝🍜🦪🍲🍥🍣🍱🍛🍚🧆🍙🍘🍢🍡🍧🍨🍦🍰🎂🍮🍭🍬🍫🍿🍩🍪🥮🧁🥛🧈🍼☕🍵🍶🍺🍻🥂🍷🥃🍸🍹🍾🧉🧃🧊🧂🥄🍴")
 
-class Nahrung(ft.UserControl):
+class Home(ft.Control):
-    def __init__(self) -> None:
+    def __init__(self, history_instance: History) -> None:
         super().__init__()
-        self.settings, self.history = file_handler.load(self)
+        self.history_instance = history_instance
 
         self.kjtext = ft.Text("0", size=25)
         self.kcaltext = ft.Text("0", size=30)
-        self.kcaltextfield = ft.TextField(keyboard_type="NUMBER", expand=True, autofocus=True, on_change=self.reseterrorinkcaltextfield, on_submit=self.editkcal)
+        self.kcaltextfield = ft.TextField(keyboard_type="NUMBER", expand=True, on_change=self.reseterrorinkcaltextfield, on_submit=self.editkcal)
+        self.snack_bar = ft.SnackBar(ft.Text("Hinzugefügt"))
 
-        # Initialize history list
-        self.historylist = []
-        self.update_history()
-
-        # Initialize controls
         self.main_container = ft.Container(
             content=ft.Column(
                 [
@@ -31,14 +28,14 @@ class Nahrung(ft.UserControl):
                         [
                             ft.Text("kjoule:", size=20),
                             self.kjtext,
-                            ft.Text(f"/{round(self.settings['kcal_max'] * 4.184, 0)}", size=10)
+                            ft.Text(f"/{round(self.history_instance.settings['kcal_max'] * 4.184, 0)}", size=10)
                         ]
                     ),
                     ft.Row(
                         [
                             ft.Text("kcal:", size=25),
                             self.kcaltext,
-                            ft.Text(f"/{self.settings['kcal_max']}", size=10)
+                            ft.Text(f"/{self.history_instance.settings['kcal_max']}", size=10)
                         ]
                     ),
                     ft.Row(
@@ -54,13 +51,7 @@ class Nahrung(ft.UserControl):
             padding=15,
         )
 
-        self.history_container = ft.Container(
+        self.controls = [self.main_container, self.snack_bar]
-            content=ft.Column([ft.Text("Verlauf:"),
-                               ft.Column(controls=self.historylist)
-                               ]),
-        )
-
-        self.controls = [self.main_container, self.history_container]
 
         self.load_todays_kcal()
 
@@ -74,22 +65,29 @@ class Nahrung(ft.UserControl):
     def editkcal(self, e):
         try:
             emoji = random_emoji()
+            print(emoji)
             new_kcal = int(self.kcaltext.value) + int(self.kcaltextfield.value)
             self.kcaltext.value = str(new_kcal)
             self.kjtext.value = str(round(new_kcal * 4.184, 0))
-            self.history.append([emoji, self.kcaltextfield.value, get_time()])
+            self.history_instance.addkcal(emoji, self.kcaltextfield.value)
-            file_handler.save(self.settings, self.history)
-            self.update_history()
             self.reseterrorinkcaltextfield()
             self.kcaltextfield.value = ""
-            self.update()
+
+            self.snack_bar.open = True
+            self.page.snack_bar = self.snack_bar
+            self.page.update()
+            self.snack_bar.open = False
+            self.page.snack_bar = None
+
+            self.history_instance.update_history_view()
+
         except ValueError:
             self.kcaltextfield.error_text = "\\(*O*)/ nicht verschreiben!!"
-            self.update()
+            self.page.update()
 
     def create_appbar(self):
         return ft.AppBar(
-            title=ft.Text("Nahrungstracker"),
+            title=ft.Text("Home"),
             actions=[
                 ft.PopupMenuButton(
                     items=[ft.PopupMenuItem(text="Reset", on_click=self.resethistory)]
@@ -97,45 +95,20 @@ class Nahrung(ft.UserControl):
             ],
         )
 
-    def update_history(self):
+    def resethistory(self,e):
-        self.historylist.clear()
+        print("reset button")
-        for h in self.history:
-            self.historylist.insert(0,
-                ft.Container(content=
-                    ft.Column(controls=[
-                        ft.Row(
-                            [ft.Text(str(f"{h[2][3]}:{h[2][4]}:{h[2][5]} {h[2][2]}.{h[2][1]}.{h[2][0]}"))],
-                            alignment=ft.MainAxisAlignment.END
-                        ),
-                        ft.Row(
-                            [ft.Text(str(f"({h[1]} kcal) {h[0]}"), size=20)],
-                            alignment=ft.MainAxisAlignment.START,
-                        )]),
-                    bgcolor=ft.colors.INDIGO_600,  # "#226666",
-                    border_radius=5,
-                    padding=6
-                )
-            )
-
-    def resethistory(self, e):
-        print("pressed")
         def reset(e):
             self.kcaltext.value = "0"
             self.kjtext.value = "0"
-            self.history = []
+            self.history_instance.history = []
-            file_handler.save(self.settings, self.history)
+            file_handler.save(self.history_instance.settings, self.history_instance.history)
-            self.update_history()
+            self.history_instance.update_history_view()  # Aktualisieren der History-Ansicht
-            self.history_container.content = ft.Column(self.historylist)
             self.dialog.open = False
-            # beide updaten
             self.page.update()
-            self.update()  
 
         def close(e):
             self.dialog.open = False
-            # beide updaten
             self.page.update()
-            self.update()
 
         self.dialog = ft.AlertDialog(
             modal=True,
@@ -148,33 +121,17 @@ class Nahrung(ft.UserControl):
             actions_alignment=ft.MainAxisAlignment.END,
             on_dismiss=lambda e: print("Modal dialog dismissed!"),
         )
-        self.page.dialog = self.dialog
 
+        self.page.dialog = self.dialog
         self.dialog.open = True
         self.page.update()
 
     def load_todays_kcal(self):
         today_date = get_time()[:3]
-        print(today_date)
-
         todays_kcal = 0
-        for entry in self.history:
+        for entry in self.history_instance.history:
-            entry_date = entry[2][:3]  # Year, Month, Day part of the entry's timestamp
+            entry_date = entry[2][:3]
             if entry_date == today_date:
                 todays_kcal += int(entry[1])
 
         self.kcaltext.value = str(todays_kcal)
-
-
-def main(page: ft.Page):
-    page.title = "Nahrungstracker"
-    page.scroll = True
-
-    nahrung = Nahrung()
-    nahrung.page = page  # Store reference to the page in Nahrung instance
-    page.appbar = nahrung.create_appbar()
-    page.add(nahrung)
-    page.update()  # Ensure the initial UI is updated
-
-if __name__ == "__main__":
-    ft.app(target=main)

app/pages/settings.py

@@ -0,0 +1,21 @@
+import flet as ft
+class Settings(ft.Control):
+    def __init__(self) -> None:
+        super().__init__()
+
+
+        # Initialize controls
+        self.main_container = ft.Container(
+            content=ft.Column([ft.Text("huhu")]),
+            border_radius=10,
+            padding=15
+        )
+
+    def build(self):
+        return ft.Column(self.controls)
+
+    def create_appbar(self):
+        return ft.AppBar(
+            title=ft.Text("Settings")
+        )
+