tkinter中多个框架的多个窗口大小[重复]

Question

我在这里使用代码：Switch between two frames in tkinter 作为我的代码的基本骨架，现在我有多个框架。我想知道是否可以根据显示的框架大小调整窗口大小。例如，我的初始页面可能是一个小而可爱的 300x300 窗口，只是显示一个按钮列表，但是一旦点击进入另一个页面，窗口就会变为 500x500。

提前致谢！

Answer 1

这是Switch between two frames in tkinter 已接受答案的改编版本。我修改了show_frame 方法，使它也改变了窗口的几何形状。

import tkinter as tk   # python3
#import Tkinter as tk   # python

TITLE_FONT = ("Helvetica", 18, "bold")

class SampleApp(tk.Tk):

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

        # the container is where we'll stack a bunch of frames
        # on top of each other, then the one we want visible
        # will be raised above the others
        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,geometry in zip((StartPage, PageOne, PageTwo), ('300x300', '500x500', '800x500')):
            page_name = F.__name__
            frame = F(parent=container, controller=self)
            # store the frame and the geometry for this frame
            self.frames[page_name] = (frame, geometry)

            # put all of the pages in the same location;
            # the one on the top of the stacking order
            # will be the one that is visible.
            frame.grid(row=0, column=0, sticky="nsew")

        self.show_frame("StartPage")

    def show_frame(self, page_name):
        '''Show a frame for the given page name'''
        frame, geometry = self.frames[page_name]
        # change geometry of the window
        self.update_idletasks()
        self.geometry(geometry)
        frame.tkraise()


class StartPage(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        self.controller = controller
        label = tk.Label(self, text="This is the start page", font=TITLE_FONT)
        label.pack(side="top", fill="x", pady=10)

        button1 = tk.Button(self, text="Go to Page One",
                            command=lambda: controller.show_frame("PageOne"))
        button2 = tk.Button(self, text="Go to Page Two",
                            command=lambda: controller.show_frame("PageTwo"))
        button1.pack()
        button2.pack()


class PageOne(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        self.controller = controller
        label = tk.Label(self, text="This is page 1", font=TITLE_FONT)
        label.pack(side="top", fill="x", pady=10)
        button = tk.Button(self, text="Go to the start page",
                           command=lambda: controller.show_frame("StartPage"))
        button.pack()


class PageTwo(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        self.controller = controller
        label = tk.Label(self, text="This is page 2", font=TITLE_FONT)
        label.pack(side="top", fill="x", pady=10)
        button = tk.Button(self, text="Go to the start page",
                           command=lambda: controller.show_frame("StartPage"))
        button.pack()


if __name__ == "__main__":
    app = SampleApp()
    app.mainloop()