带有小部件的可滚动tkinter画布仅填充了框架的一半

Question

我尝试在 tkinter 中执行可滚动的画布方法，但画布从上到下只填满了屏幕的一半，它向两侧填充了屏幕。

class Application(tk.Tk):
    def __init__(self):
        tk.Tk.__init__(self)
        tk.Tk.iconbitmap(self, default = "icon.ico")
        tk.Tk.wm_title(self, "name")
        tk.Tk.geometry(self, "1024x576")
        container = tk.Frame(self)
        container.pack(side = "top", fill = "both", expand = True)
        self.frames = {}
        for F in (Frame1, Frame2, ...):
            frame = F(container, self)
            self.frames[F] = frame
            frame.grid(row = 0, column = 0, sticky = "nsew")
        self.show_frame(Frame1)
    def show_frame(self, cont):
        frame = self.frames[cont]
        frame.tkraise()
class Frame2(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        self.canvas = tk.Canvas(self, borderwidth=0, background="#ffffff")
        self.frame = tk.Frame(self.canvas, background="#ffffff")
        self.vsb = tk.Scrollbar(self, orient="vertical", command=self.canvas.yview)
        self.canvas.configure(yscrollcommand=self.vsb.set)
        self.vsb.pack(side="right", fill="y", expand=False)
        self.canvas.pack(side="left", fill="both", expand=True)
        self.canvas.create_window((0,0), window=self.frame, anchor="nw", tags="self.frame")
        self.frame.bind("<Configure>", self.onFrameConfigure)
    for i in range(n):
        "a bunch of widgets".grid(column = 0, row = i)
    def onFrameConfigure(self, event):
        self.canvas.configure(scrollregion=self.canvas.bbox("all"))

Answer 1

grid不会

自动调整小部件的大小。

您可以通知container(作为使用 frame.grid frame的父级(网格中的哪些行和列可以使用更多空间并调整小部件的大小。(不同的行/列可能有不同的weight(

    container.rowconfigure(0, weight=1)
    container.columnconfigure(0, weight=1)
    for F in (Frame2, ):
        frame = F(container, self)
        self.frames[F] = frame
        frame.grid(row=0, column=0, sticky="news")

或者您可以使用frame.pack()而不是frame.grid()

    for F in (Frame2, ):
        frame = F(container, self)
        self.frames[F] = frame
        frame.pack(fill='both', expand=True)