[英]Add picture with ImageTk for Multiple Windows/Frames in Tkinter GUI with Python
我正在嘗試創建一個多框架GUI。 為此,我使用的代碼工作正常。 但是,當我在某些幀中添加一些圖片時,GUI出現在兩個窗口中:一個具有正常功能和排列方式;另一個具有常規功能和排列方式。 一無所有。 如果我關閉它們中的任何一個,它們都將關閉。
我使用Python 2.7。
有人可以向我解釋發生了什么嗎?
編輯:我現在知道原因。 這是因為我使用tk.Toplevel而不是tk.Tk。 使用tk.Tk,雙窗口沒有問題,但是我無法顯示圖片。 有什么幫助嗎?
這是我的代碼:
import tkinter as tk # python3
#import Tkinter as tk # python
from PIL import ImageTk, Image
TITLE_FONT = ("Helvetica", 18, "bold")
img = Image.open('arrow.png')
class SampleApp(tk.Toplevel):
def __init__(self, *args, **kwargs):
tk.Toplevel.__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.arrow = ImageTk.PhotoImage(img)
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=TITLE_FONT)
# label.pack(side="top", fill="x", pady=10)
label.grid(row=0)
arrow1 = tk.Label(self, image = self.controller.arrow)
arrow2 = tk.Label(self, image = self.controller.arrow)
arrow1.grid(row=1,column=0)
arrow2.grid(row=2,column=0)
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.grid(row=1,column=1)
button2.grid(row=2,column=1)
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)
label.grid(row=0)
button = tk.Button(self, text="Go to the start page",
command=lambda: controller.show_frame("StartPage"))
button.grid(row=1,column=1)
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()
您忘記了在PageOne和PageTwo的標簽中包含image=...
選項。 我加了 ;)
另外,刪除了頂層。 另外,您仍然可以像以前一樣使用Toplevel,並在創建root=tk.Tk()
窗口后將其隱藏。
#import tkinter as tk # python3
import Tkinter as tk # python
from PIL import ImageTk, Image
TITLE_FONT = ("Helvetica", 18, "bold")
img = Image.open('arrow.png')
class SampleApp(tk.Frame): #change to tk.Frame
def __init__(self, parent, *args, **kwargs): #added parent
tk.Frame.__init__(self, parent, *args, **kwargs) #added parent
# 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(parent) #changed self to parent
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.arrow = ImageTk.PhotoImage(img)
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=TITLE_FONT)
# label.pack(side="top", fill="x", pady=10)
label.grid(row=0)
arrow1 = tk.Label(self, image = self.controller.arrow)
arrow2 = tk.Label(self, image = self.controller.arrow)
arrow1.grid(row=1,column=0)
arrow2.grid(row=2,column=0)
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.grid(row=1,column=1)
button2.grid(row=2,column=1)
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,
image = self.controller.arrow) # Added
label.pack(side="top", fill="x", pady=10)
label.grid(row=0)
button = tk.Button(self, text="Go to the start page",
command=lambda: controller.show_frame("StartPage"))
button.grid(row=1,column=1)
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,
image = self.controller.arrow) # Added
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__":
root = tk.Tk() #Added
app = SampleApp(root) #added root
root.mainloop()
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