Question

我看here。我可以将页面（框架）拆分为两个文件。例如，这是我的第一个文件：main.py

from Tkinter import *
from halsatu import *
class Biasa(Tk):
    def __init__(self, *args, **kwargs):
        Tk.__init__(self, *args, **kwargs)
        container = Frame(self)
        container.pack(expand=True)

        container.grid_rowconfigure(0, weight=1)
        container.grid_columnconfigure(0, weight=1)

        self.frames = {}

        for F in (StartPage, PageOne, PageTwo):
            frame = F(container, self)
            frame.grid(row=0, column=0, sticky='news')
            self.frames[F] = frame
        self.show_frame(StartPage)
    def show_frame(self, c):
        frame = self.frames[c]
        frame.tkraise()

class StartPage(Frame):
    def __init__(self, parent, controller):
        Frame.__init__(self, parent)
        label = Label(self, text='Ini halaman Awal')
        label.pack()

        button = Button(self, text='ke Halaman 1',
            command=lambda: controller.show_frame(PageOne))
        button.pack()
        button2 = Button(self, text='ke Hal. 2',
            command=lambda: controller.show_frame(PageTwo))
        button2.pack()

class PageTwo(Frame):
    def __init__(self, parent, controller):
        Frame.__init__(self, parent)
        label = Label(self, text='Sekarang \nIni halaman Dua lho..')
        label.pack()

        button = Button(self, text='ke Halaman 1',
            command=lambda: controller.show_frame(PageOne))
        button.pack()
        button2 = Button(self, text='ke Hal. Awal',
            command=lambda: controller.show_frame(StartPage))
        button2.pack()



if __name__ == '__main__':
    app = Biasa()
    app.mainloop()

然后这是我的halsatu.py：

from Tkinter import *
class PageOne(Frame):
    def __init__(self, parent, controller):
        Frame.__init__(self, parent)
        label = Label(self, text='Kalau yang Ini halaman Satuuuuuuuuuuuuuuuuuu')
        label.pack()

        button = Button(self, text='ke Halaman Awal',
            command=lambda: controller.show_frame(StartPage))
        button.pack()
        button2 = Button(self, text='ke Hal. 2',
            command=lambda: controller.show_frame(PageTwo))
        button2.pack()

该代码可以运行。但是当我转到pageone时，我无法再次返回StartPage。如何将这么多页面（框架）拆分成单独的文件？

Answer 1

您已经将控制器传递给PageOne，因此这可以是提升页面的机制。我的建议是，可以按名称而不是按类引用页面，然后为控制器提供一个接受名称并引发该页面的方法。这样，您的页面就不必相互导入，从而实现更松散的耦合。

它看起来像这样：

class Biasa(Tk):
    ...
    def show_page(self, page_name):
        for F in self.frames:
            if F.__name__ == page_name:
                self.show_frame(F)
                return

class PageOne(Frame):
    def __init__(self, parent, controller):
        ...
        button = Button(..., command=lambda: controller.show_page("StartPage"))
        ...

拆分多个文件tkinter框架

1 个答案: