我如何在 kivymd 中向我的应用程序添加 if 条件

Question

所以这段代码的主要问题是，是的，它确实可以正常工作，但只显示在控制台上，而不是 kivy 应用程序上。

    def my_func(self):
        open_p = self.root.get_screen("tab").ids.op.text
        volume = self.root.get_screen("tab").ids.vl.text
        hi = self.root.get_screen("tab").ids.hi.text
        lo = self.root.get_screen("tab").ids.lo.text
        model = pickle.load(open('ustech_model', 'rb'))
        input_dt = (open_p, volume, lo, hi)
        inpt_val = np.asarray(input_dt, dtype=float)
        reshape_vals = inpt_val.reshape(1, -1)
        anticipate = model.predict(reshape_vals)
        # return anticipate.round(2)
        if inpt_val[0] < anticipate:
            print(f"Buy!! & TP:{anticipate.round(2)}")
        else:
            print(f"Sell!! & TP:{anticipate.round(2)}")

我如何更改输出以包含我想在我的主应用程序上显示的文本 这是代码的其余部分：

import numpy as np
from kivymd.app import MDApp
from kivy.lang.builder import Builder
from kivy.uix.screenmanager import Screen, ScreenManager
from kivymd.uix.screenmanager import MDScreenManager
from kivymd.uix.tab import MDTabsBase
from kivymd.uix.floatlayout import MDFloatLayout
from kivy.core.window import Window
import pickle
import warnings

# warnings.filterwarnings('ignore', category="FutureWarning")
warnings.filterwarnings('ignore', category=UserWarning)

Window.size = (400, 600)

KV = """

MDScreenManager:
    HomeScreen:
    Main:

<HomeScreen>:
    name:'menu'
    MDRectangleFlatIconButton:
        text: "WELCOME"
        icon: "distribute-horizontal-center"
        line_color: 0, 0, 0, 0
        pos_hint: {"center_x": .5, "center_y": .5}
        font_size: 25
        # font_name: "branda.ttf"

    MDIconButton:
        icon: "location-enter"
        pos_hint: {'center_x': 0.5, 'center_y': 0.4}
        on_press: 
            root.manager.current = 'tab'
            root.manager.transition.direction = "left"
    MDLabel:
        text: "REMEMBER TO ALWAYS BE HUMBLE!!"
        halign: "center"
        pos_hint: {'center_y': 0.1}
        font_size: 12


<Main>:
    name: 'tab'

    MDBoxLayout:
        orientation: "vertical"

        MDTopAppBar:
            title: "TRADEMAVERICKS"
            anchor_title: 'center'
            right_action_items:
                [["distribute-horizontal-center"]]


        MDTabs:
            id: tabs
            allow_stretch: 'True'
            on_tab_switch: root.on_tab_switch(*args)
        
            # NAS100
            Tab:
                title: "NAS100"
                MDGridLayout:
                    cols: 2
                    padding: dp(36)
                    spacing: dp(20)
                    MDTextField:
                        id: op
                        hint_text: "OPEN"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .9}
                        size_hint_x: None
                        width: 150

                    MDTextField:
                        id: vl
                        hint_text: "VOLUME"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .7}
                        size_hint_x: None
                        width: 150

                    MDTextField:
                        id: lo
                        hint_text: "LOW"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .5}
                        size_hint_x: None 
                        width: 150

                    MDTextField:
                        id: hi
                        hint_text: "HIGH"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .3}
                        size_hint_x: None
                        width: 150
                        
                    MDRaisedButton:
                        text: "SUBMIT"
                        on_release:  
                            app.func()
                            # if inpt_val[0] < anticipate:
                            #     print(f"Buy!! & TP:{anticipate.round(2)}")
                            # else:
                            #     print(f"Sell!! & TP:{anticipate.round(2)}")
                        
                
                MDCard:
                    size_hint: None, None
                    size: "325dp", "150dp"
                    pos_hint: {"center_x": .5, "center_y": .32}
                    radius: 5
                    MDLabel:
                        text: ""
                        id: put_txt_here
                        halign: 'center'
                        pos_hint: {"center_x": .5, "center_y": .6}
                        
    

                MDIconButton:
                    icon: "home"
                    icon_size: "40"
                    pos_hint: {"center_x": .8, "center_y": .1}
                    on_press:
                        root.manager.current = 'menu'
                        root.manager.transition.direction = "right"
                        
          
            # US30
            Tab:
                title: "US30"
                MDGridLayout:
                    cols: 2
                    padding: dp(36)
                    spacing: dp(20)
                    
                    MDTextField:
                        id: o
                        hint_text: "OPEN"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .9}
                        size_hint_x: None
                        width: 150

                    MDTextField:
                        id: v
                        hint_text: "VOLUME"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .7}
                        size_hint_x: None
                        width: 150

                    MDTextField:
                        id: l
                        hint_text: "LOW"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .5}
                        size_hint_x: None 
                        width: 150

                    MDTextField:
                        id: h
                        hint_text: "HIGH"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .3}
                        size_hint_x: None
                        width: 150
                        
                    MDRaisedButton:
                        text: "SUBMIT"
                        on_release:  
                            app.us30()
                        
                MDCard:
                    size_hint: None, None
                    size: "325dp", "150dp"
                    pos_hint: {"center_x": .5, "center_y": .32}
                    radius: 5
                    MDLabel:
                        text: ""
                        id: put_us30
                        halign: 'center'
                        pos_hint: {"center_x": .5, "center_y": .6}


                MDIconButton:
                    icon: "home"
                    icon_size: "40"
                    pos_hint: {"center_x": .8, "center_y": .1}
                    on_press:
                        root.manager.current = 'menu'
                        root.manager.transition.direction = "right"
           
            # GER30
            Tab:
                title: "GER30"
                MDGridLayout:
                    cols: 2
                    padding: dp(36)
                    spacing: dp(20)
                     
                    MDTextField:
                        id: op_1
                        hint_text: "OPEN"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .9}
                        size_hint_x: None
                        width: 150

                    MDTextField:
                        id: vol_1
                        hint_text: "VOLUME"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .7}
                        size_hint_x: None
                        width: 150

                    MDTextField:
                        id: lo_1
                        hint_text: "LOW"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .5}
                        size_hint_x: None 
                        width: 150

                    MDTextField:
                        id: hi_1
                        hint_text: "HIGH"
                        mode: "line"
                        pos_hint: {"center_x": .5, "center_y": .3}
                        size_hint_x: None
                        width: 150
                    MDRaisedButton:
                        text: "SUBMIT"
                        on_release:  
                            app.ger30()
                            
                MDCard:
                    size_hint: None, None
                    size: "325dp", "150dp"
                    pos_hint: {"center_x": .5, "center_y": .32}
                    radius: 5
                    MDLabel:
                        text: ""
                        id: put_ger30
                        halign: 'center'
                        pos_hint: {"center_x": .5, "center_y": .6}


                MDIconButton:
                    icon: "home"
                    icon_size: "40"
                    pos_hint: {"center_x": .8, "center_y": .1}
                    on_press:
                        root.manager.current = 'menu'
                        root.manager.transition.direction = "right"


<Tab>:
    MDLabel:
        id: label
        halign: "center"

"""


class Tab(MDFloatLayout, MDTabsBase):
    pass


class HomeScreen(Screen):
    pass


class Main(Screen):
    def on_tab_switch(self, instance_tabs, instance_tab, instance_tab_label, tab_text):
        '''Called when switching tabs.

        :type instance_tabs: <kivymd.uix.tab.MDTabs object>;
        :param instance_tab: <main.Tab object>;
        :param instance_tab_label: <kivymd.uix.tab.MDTabsLabel object>;
        :param tab_text: text or name icon of tab;
        '''

    # instance_tab.ids.label.text = tab_text

    # 'Red', 'Pink', 'Purple', 'DeepPurple', 'Indigo', 'Blue', 'LightBlue', 'Cyan', 'Teal', 'Green',
    # 'LightGreen', 'Lime', 'Yellow', 'Amber', 'Orange', 'DeepOrange', 'Brown', 'Gray', 'BlueGray'


class TM(MDApp):
    def build(self):
        self.theme_cls.theme_style = "Dark"
        self.theme_cls.material_style = "M3"
        self.theme_cls.primary_palette = "Amber"
        self.icon = "logo.png"
        Builder.load_string(KV)

        sm = MDScreenManager()
        sm.add_widget(HomeScreen(name='menu'))
        sm.add_widget(Main(name='tab'))
        return sm

    # For NAS100
    def my_func(self):
        open_p = self.root.get_screen("tab").ids.op.text
        volume = self.root.get_screen("tab").ids.vl.text
        hi = self.root.get_screen("tab").ids.hi.text
        lo = self.root.get_screen("tab").ids.lo.text
        model = pickle.load(open('ustech_model', 'rb'))
        input_dt = (open_p, volume, lo, hi)
        inpt_val = np.asarray(input_dt, dtype=float)
        reshape_vals = inpt_val.reshape(1, -1)
        anticipate = model.predict(reshape_vals)
        # return anticipate.round(2)
        if inpt_val[0] < anticipate:
            print(f"Buy!! & TP:{anticipate.round(2)}")
        else:
            print(f"Sell!! & TP:{anticipate.round(2)}")

    def func(self):
        self.root.get_screen("tab").ids.put_txt_here.text = str(self.my_func())

    # For US30
    def my_us30(self):
        o = self.root.get_screen("tab").ids.o.text
        v = self.root.get_screen("tab").ids.v.text
        h = self.root.get_screen("tab").ids.h.text
        l = self.root.get_screen("tab").ids.l.text
        model = pickle.load(open('us30_model', 'rb'))
        input_dt = (o, v, h, l)
        inpt_val = np.asarray(input_dt, dtype=float)
        reshape_vals = inpt_val.reshape(1, -1)
        anticipate = model.predict(reshape_vals)
        return anticipate.round(2)
        # if inpt_val[0] < anticipate:
        #     print(f"Buy!! & TP:{anticipate.round(2)}")
        # else:
        #     print(f"Sell!! & TP:{anticipate.round(2)}")

    def us30(self):
        self.root.get_screen("tab").ids.put_us30.text = str(self.my_us30())

    #  For GER30
    def my_ger30(self):
        op_1 = self.root.get_screen("tab").ids.op_1.text
        vol_1 = self.root.get_screen("tab").ids.vol_1.text
        hi_1 = self.root.get_screen("tab").ids.hi_1.text
        lo_1 = self.root.get_screen("tab").ids.lo_1.text
        model = pickle.load(open('us30_model', 'rb'))
        input_dt = (op_1, vol_1, hi_1, lo_1)
        inpt_val = np.asarray(input_dt, dtype=float)
        reshape_vals = inpt_val.reshape(1, -1)
        anticipate = model.predict(reshape_vals)
        return anticipate.round(2)
        # if inpt_val[0] < anticipate:
        #     print(f"Buy!! & TP:{anticipate.round(2)}")
        # else:
        #     print(f"Sell!! & TP:{anticipate.round(2)}")

    def ger30(self):
        self.root.get_screen("tab").ids.put_ger30.text = str(self.my_ger30())


TM().run()

我试图将打印更改为使用标签的 id 但它抛出了一个错误，无法在函数中找到它

Answer 1

对于ger30：

#  For GER30
def my_ger30(self):
    op_1 = self.root.get_screen("tab").ids.op_1.text
    vol_1 = self.root.get_screen("tab").ids.vol_1.text
    hi_1 = self.root.get_screen("tab").ids.hi_1.text
    lo_1 = self.root.get_screen("tab").ids.lo_1.text
    model = pickle.load(open('us30_model', 'rb'))
    input_dt = (op_1, vol_1, hi_1, lo_1)
    inpt_val = np.asarray(input_dt, dtype=float)
    reshape_vals = inpt_val.reshape(1, -1)
    anticipate = model.predict(reshape_vals)
    if inpt_val[0] < anticipate:
        self.root.get_screen("tab").ids.put_ger30.text = f"Buy!! & TP:{anticipate.round(2)}"
    else:
        self.root.get_screen("tab").ids.put_ger30.text = f"Sell!! & TP:{anticipate.round(2)}"
    return anticipate.round(2)

def ger30(self):
    self.my_ger30()