一种方法是将框架堆叠在一起,然后您只需按照堆叠顺序将一个框架提高到另一个之上即可。顶部的那个将是可见的。如果所有框架的尺寸相同,则效果最佳,但只需做一些工作,您就可以使其适用于任何尺寸的框架。
Note:要使其工作,页面的所有小部件都必须具有该页面(即:self
)或后代作为父母(或主人,取决于您喜欢的术语)。
这是一个人为的例子来向您展示一般概念:
try:
import tkinter as tk # python 3
from tkinter import font as tkfont # python 3
except ImportError:
import Tkinter as tk # python 2
import tkFont as tkfont # python 2
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(family='Helvetica', size=18, weight="bold", slant="italic")
# 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 in (StartPage, PageOne, PageTwo):
page_name = F.__name__
frame = F(parent=container, controller=self)
self.frames[page_name] = frame
# 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 = self.frames[page_name]
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=controller.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=controller.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=controller.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()
![page 2](https://i.stack.imgur.com/339hd.png)
如果您发现在类中创建实例的概念令人困惑,或者不同的页面在构造过程中需要不同的参数,您可以分别显式调用每个类。该循环主要是为了说明每个类都是相同的。
例如,要单独创建类,您可以删除循环(for F in (StartPage, ...)
有了这个:
self.frames["StartPage"] = StartPage(parent=container, controller=self)
self.frames["PageOne"] = PageOne(parent=container, controller=self)
self.frames["PageTwo"] = PageTwo(parent=container, controller=self)
self.frames["StartPage"].grid(row=0, column=0, sticky="nsew")
self.frames["PageOne"].grid(row=0, column=0, sticky="nsew")
self.frames["PageTwo"].grid(row=0, column=0, sticky="nsew")
随着时间的推移,人们使用此代码(或复制此代码的在线教程)作为起点提出了其他问题。您可能想阅读这些问题的答案:
- 了解 Tkinter __init__ 中的父级和控制器
- 特金特!了解如何切换帧
- 如何从类中获取变量数据
- 从 Tkinter 框架调用函数到另一个框架
- 如何在 tkinter 中访问不同类的变量?
- 我如何创建一个每次在 tkinter 中显示帧时运行的方法
- Tkinter 框架调整大小
- Tkinter 在单独的文件中具有页面代码
- 按下按钮刷新 tkinter 框架