Question

我有一些测试代码，它定义了几个窗口和函数（一个用于显示框架，一个用于新窗口）。我有一个创建new_window函数的错误，因为它不会打开指定的窗口，而是打开一个空白的窗口。我认为这是因为我已经在类中定义了与主类相关的窗口，并且框架是在其中定义的，但是窗口不是，但我担心我对如何调试感到很遗憾。

任何帮助非常感谢！

import tkinter as tk
from tkinter import ttk
from tkinter.filedialog import askopenfilename

class Randomize(tk.Tk):

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

        tk.Tk.__init__(self, *args, **kwargs)

        tk.Tk.wm_title(self, "Randomize those names!")

        container = tk.Frame(self)
        container.pack(side="top", fill="both", expand = True)
        container.grid_rowconfigure(0, weight=1)
        container.grid_columnconfigure(0, weight=1)

        self.frames = {}

        for F in (HomeWindow, NewWin):

            frame = F(container, self)
            self.frames[F] = frame
            frame.grid(row=0, column=0, sticky="nsew")

        self.show_frame(HomeWindow)

    def show_frame(self, cont):
        frame = self.frames[cont]
        frame.tkraise()

##trying to create a new window instead of just changing the original one        
    def new_window(self, cont):
        window = tk.Toplevel(self)
        window.tkraise() 

class HomeWindow(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self,parent)

        label = ttk.Label(self, text="Choose a File and Start")
        label.pack(pady=10,padx=10)

##calls NewWin in a new frame but the same window, works     
        button = ttk.Button(self, text="File",
                            command=lambda: controller.show_frame(NewWin))
        button.pack()
##should call NewWin through new_window, instead opens blank window    
        button2 = ttk.Button(self, text="New Window",
                            command=lambda: controller.new_window(NewWin))
        button2.pack()

class NewWin(tk.Frame):

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

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

app = Randomize()
app.mainloop()

Answer 1

应该是

def new_window(self, cont):
    window = tk.Toplevel(self)
    frame = cont(window, window) # cont = NewWin
    frame.pack()

但框架中的按钮不起作用。新窗口没有show_frame()方法。

也许你使用

    frame = cont(window, self) # self

然后在新窗口中的按钮将改变主窗口中的帧。

带有类的tkinter中的新窗口是空白的

1 个答案: