如何让网格在 tkinter 中的容器内伸展

Question

我正在尝试使用 python 创建一个程序，稍后将控制设备中的泵，我现在只是想了解如何使用 tkinter 构建 GUI。我已经得到了所有要显示的东西，除了我不能用 window 使按钮伸展并且我不能让文本停留在 window 的中心。我想我已经非常接近让它工作了，但是已经坚持了一段时间。

代码是我在网上找到的，并做了一些调整，这就是为什么我被卡住了，因为我实际上不是程序员，不幸的是，我没有时间深入研究它。这就是我寻求帮助的原因。

如果有人可以提供一些建议，我们将不胜感激！提前致谢。

这是我的代码：

    import tkinter as tk
    from tkinter import ttk
    
    fonts =("Verdana", 35)
    
    class application(tk.Tk):
    
        # __init__ function for class tkinterApp
        def __init__(self, *args, **kwargs):
    
            # __init__ function for class Tk
            tk.Tk.__init__(self, *args, **kwargs)
    
            tk.Grid.rowconfigure(self, 0, weight=1)
            tk.Grid.columnconfigure(self, 0, weight=1)
    
            # creating a container
            container = tk.Frame(self)
            container.grid(row = 0,column = 0, sticky = "nsew")
    
            # initializing frames to an empty array
            self.frames = {}
    
            # iterating through a tuple consisting
            # of the different page layouts
            pages = (StartPage, Page1)
            for F in pages:
    
                frame = F(container, self)
    
                # initializing frame of that object from
                # startpage, page1, page2 respectively with
                # for loop
                frame.grid(row = 0, column = 0, sticky ="nsew")
                self.frames[F] = frame
    
            self.show_frame(StartPage)
    
        # to display the current frame passed as
        # parameter
        def show_frame(self, cont):
            frame = self.frames[cont]
            frame.grid(sticky ="nsew")
            frame.tkraise()
    
    # first window frame startpage
    
    class StartPage(tk.Frame):
        def __init__(self, parent, controller):
            tk.Frame.__init__(self, parent)
            self.rowconfigure(1, weight=1)
            self.columnconfigure(0, weight=1)
            self.columnconfigure(1, weight=1)
    
            # label of frame Layout 2
            label = ttk.Label(self, text ="Startpage", font = fonts)
    
            # putting the grid in its place by using
            # grid
            label.grid(row = 0, column = 0, padx = 10, pady = 10,columnspan = 2,sticky = "nsew")
    
            btn1 = ttk.Button(self, text ="Page 1",
            command = lambda : controller.show_frame(Page1))
    
            # putting the button in its place by
            # using grid
            btn1.grid(row = 1, column = 0,sticky = "nsew")
    
            btn2 = ttk.Button(self, text ="Page test",
            command = lambda : controller.show_frame(Page1))
    
            # putting the button in its place by
            # using grid
            btn2.grid(row = 1, column = 1,sticky = "nsew")
    
    # second window frame page1
    class Page1(tk.Frame):
    
        def __init__(self, parent, controller):
    
            tk.Frame.__init__(self, parent)
            self.rowconfigure(1, weight=1)
            self.columnconfigure(0, weight=1)
            self.columnconfigure(1, weight=1)
    
            label = ttk.Label(self, text ="Page 1", font = fonts)
            label.grid(row = 0, column = 0, padx = 10, pady = 10,columnspan = 2,sticky = "nsew")
    
            # button to show frame 2 with text
            # layout2
            btn1 = ttk.Button(self, text ="Back",
            command = lambda : controller.show_frame(StartPage))
    
            # putting the button in its place by
            # using grid
            btn1.grid(row = 1, column = 0,sticky = "nsew")
    
            btn2 = ttk.Button(self, text ="Back 2",
            command = lambda : controller.show_frame(StartPage))
    
            # putting the button in its place by
            # using grid
            btn2.grid(row = 1, column = 1,sticky = "nsew")
    
    # Driver Code
    app = application()
    app.mainloop()

Answer 1

您需要致电：

container.rowconfigure(0, weight=1)
container.columnconfigure(0, weight=1)

否则StartPage和Page1不会把container的space全部拿走。

要使标签居中，您需要在 ttk.Label(...) 中添加 anchor="c":

...

label = ttk.Label(self, text ="Startpage", font=fonts, anchor="c")

...

label = ttk.Label(self, text ="Page 1", font=fonts, anchor="c")

...

如何让网格在 tkinter 中的容器内伸展

How to get grid to stretch inside containers in tkinter

python

tkinter

tkinter-menu