Поддержка, требуемая при отображении слайд-шоу изображений в Python с TKinter

Question

Я пытаюсь создать набор кода, который откроет окно и будет отображать 6 изображений в последовательности снова и снова очень быстро в течение 10 секунд. Это мой код, однако программа просто открывает пустой экран. Что я делаю?

import time 

import tkinter as tk 
root = tk.Tk() 
root.overrideredirect(True) 
width = root.winfo_screenwidth() 
height = root.winfo_screenwidth() 
root.geometry('%dx%d' % (width*1, height*1)) 

def SS_Part1(): 
    image_file_ssp1 = "goat1.gif" 
    image = tk.PhotoImage(file=image_file_ssp1) 
    canvas = tk.Canvas(root, height=height*1, width=width*1, bg="black") 
    canvas.create_image(width*1/2, height*1/2, image=image) 
    canvas.pack() 

def SS_Part2(): 
    image_file_ssp2 = "goat2.gif" 
    image = tk.PhotoImage(file=image_file_ssp2) 
    canvas = tk.Canvas(root, height=height*1, width=width*1, bg="black") 
    canvas.create_image(width*1/2, height*1/2, image=image) 
    canvas.pack() 

def SS_Part3(): 
    image_file_ssp3 = "goat3.gif" 
    image = tk.PhotoImage(file=image_file_ssp3) 
    canvas = tk.Canvas(root, height=height*1, width=width*1, bg="black") 
    canvas.create_image(width*1/2, height*1/2, image=image) 
    canvas.pack() 

def SS_Part4(): 
    image_file_ssp4 = "goat4.gif" 
    image = tk.PhotoImage(file=image_file_ssp4) 
    canvas = tk.Canvas(root, height=height*1, width=width*1, bg="black") 
    canvas.create_image(width*1/2, height*1/2, image=image) 
    canvas.pack() 

def SS_Part5(): 
    image_file_ssp5 = "goat5.gif" 
    image = tk.PhotoImage(file=image_file_ssp5) 
    canvas = tk.Canvas(root, height=height*1, width=width*1, bg="black") 
    canvas.create_image(width*1/2, height*1/2, image=image) 
    canvas.pack() 

def SS_Part6(): 
    image_file_ssp6 = "goat6.gif" 
    image = tk.PhotoImage(file=image_file_ssp6) 
    canvas = tk.Canvas(root, height=height*1, width=width*1, bg="black") 
    canvas.create_image(width*1/2, height*1/2, image=image) 
    canvas.pack() 




t_end = time.time() + 10 
while time.time() < t_end: 

    SS_Part1() 
    time.sleep(0.05) 
    SS_Part2() 
    time.sleep(0.05) 
    SS_Part3() 
    time.sleep(0.05) 
    SS_Part4() 
    time.sleep(0.05) 
    SS_Part5() 
    time.sleep(0.05) 
    SS_Part6() 

root.mainloop() 

Answer 1

Это некоторые изменения в вашем коде, они должны работать должным образом.

import tkinter as tk 
from itertools import cycle 

# foreign library, need to installed 
from ImageTk import PhotoImage 

images = ["first1.jpg", "first2.jpg", "first3.jpg", "first4.jpg"] 
photos = cycle(PhotoImage(file=image) for image in images) 

def slideShow(): 
    img = next(photos) 
    displayCanvas.config(image=img) 
    root.after(50, slideShow) # 0.05 seconds 

root = tk.Tk() 
root.overrideredirect(True) 
width = root.winfo_screenwidth() 
height = root.winfo_screenwidth() 
root.geometry('%dx%d' % (640, 480)) 
displayCanvas = tk.Label(root) 
displayCanvas.pack() 
root.after(10, lambda: slideShow()) 
root.mainloop() 

Это объектно-ориентированная версия кода выше, Рекомендуется. Ниже код будет работать идеально подходит для полноэкранного слайд-шоу

from itertools import cycle 
import tkinter as tk 

# foreign library, need to installed 
from ImageTk import PhotoImage 

images = [ "first1.jpg", "first2.jpg", "first3.jpg", "first4.jpg"] 

class Imagewindow(tk.Tk): 
    def __init__(self): 
    tk.Tk.__init__(self) 
    self.photos = cycle(
     PhotoImage(file=image) for image in images 
    ) 
    self.displayCanvas = tk.Label(self) 
    self.displayCanvas.pack() 

    def slideShow(self): 
    img = next(self.photos) 
    self.displayCanvas.config(image=img) 
    self.after(50, self.slideShow) # 0.05 seconds 

    def run(self): 
    self.mainloop() 


root = Imagewindow() 
width = root.winfo_screenwidth() 
height = root.winfo_screenwidth() 
root.overrideredirect(True) 
root.geometry('%dx%d' % (width*1, height*1)) 
root.slideShow() 
root.run()