Question

与这个战斗太久了，想知道有人会指出我正确的方向。我正在尝试建立一个应用程序，当该应用程序由连接到rasberry pi的红外传感器触发时，会打开一个带有7个按钮的框架。我希望按下按钮时可以打开要附加图像的单独框架。我希望框架在给定时间后消失。

现在，我可以在起始页上执行此操作，创建框架和画布并加载图像，然后在7秒钟后使用after和destroy摆脱它就可以了。

但是，当我尝试将其他框架引入方程式时，我似乎无法在第二框架中使用画布或图像。我更改了当前的方法，将其设置为分类（在线学习教程），但最终也陷入僵局。

我不确定，但是我有种感觉，现在我已经与框架建立了主从关系，这意味着我无法分别自定义它们？我已经附加了当前正在播放的与框架相关的代码。如果有人可以提供建议，将不胜感激。

import tkinter as tk
from tkinter import *


LARGE_FONT= ("Verdana", 12)


class SeaofBTCapp(tk.Tk):

    def __init__(self, *args, **kwargs):

        tk.Tk.__init__(self, *args, **kwargs)
        container = tk.Frame(self)

        container.pack(side="top", fill="both", expand = True)

        container.grid_rowconfigure(100, weight=1)
        container.grid_columnconfigure(100, weight=1)

        self.frames = {}

        for F in (StartPage, PageOne, PageTwo, PageThree, PageFour, PageFive, PageSix, PageSeven):

            frame = F(container, self)

            self.frames[F] = frame

            frame.grid(row=0, column=0, sticky="nsew")

        self.show_frame(StartPage)

    def show_frame(self, cont):

        frame = self.frames[cont]
        frame.tkraise()


class StartPage(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self,parent)
        label = tk.Label(self, text="SMART BIN Tech", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button = tk.Button(self, text="NO DRINKS or FOOD WASTE",
                            command=lambda: controller.show_frame(PageOne))
        button.pack()

        button2 = tk.Button(self, text="NO PAPER WASTE",
                            command=lambda: controller.show_frame(PageTwo))
        button2.pack()

        button3 = tk.Button(self, text="NO TEA BAGS",
                            command=lambda: controller.show_frame(PageThree))
        button3.pack()

        button4 = tk.Button(self, text="NO CANS or PLASTICS",
                            command=lambda: controller.show_frame(PageFour))
        button4.pack()

        button5 = tk.Button(self, text="LIST of RECYCLABLES",
                            command=lambda: controller.show_frame(PageFive))
        button5.pack()

        button6 = tk.Button(self, text="Vending Area Performance",
                            command=lambda: controller.show_frame(PageSix))
        button6.pack()

        button7 = tk.Button(self, text="UBS UK RATIO",
                            command=lambda: controller.show_frame(PageSeven))
        button7.pack()


class PageOne(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="NO DRINKS or FOOD WASTE", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button1 = tk.Button(self, text="Back to Home",
                            command=lambda: controller.show_frame(StartPage))
        button1.pack()

class PageTwo(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="NO PAPER WASTE", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button1 = tk.Button(self, text="Back to Home",
                            command=lambda: controller.show_frame(StartPage))
        button1.pack()


class PageThree(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="NO TEA BAGS", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button1 = tk.Button(self, text="Back to Home",
                            command=lambda: controller.show_frame(StartPage))
        button1.pack()

class PageFour(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="NO CANS or PLASTICS", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button1 = tk.Button(self, text="Back to Home",
                            command=lambda: controller.show_frame(StartPage))
        button1.pack()

class PageFive(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="RECYCLABLES", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button1 = tk.Button(self, text="Back to Home",
                            command=lambda: controller.show_frame(StartPage))
        button1.pack()

class PageSix(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="Vending Area Performance", font=LARGE_FONT)
        label.pack(pady=10,padx=10)
        w = tk.Canvas(self,width=400,height=500)
        w.pack
        button1 = tk.Button(self, text="Back to Home",
                            command=lambda: controller.show_frame(StartPage))
        button1.pack()

class PageSeven(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="UBS UK RATIO", font=LARGE_FONT)
        label.pack(pady=10,padx=10)
        canvas = tk.Canvas(self,width=100, height=100)
        canvas.pack
        button1 = tk.Button(self, text="Back to Home",
                            command=lambda: controller.show_frame(StartPage))
        button1.grid(row=2, column=5)
        button1.pack()


app = SeaofBTCapp()

app.mainloop()

Rasberry Pi上的Python 3 tkinter

0 个答案: