Python GUI的闪屏
Python GUI的闪屏
提问于 2020-11-03 02:23:44
所以我是python的新手，我一直在尝试创建一个python应用程序来保存.exe文件，然后在你“运行”该应用程序时打开它。在一些youtube教程和这里的一些注释之后，我已经设法做到了这一点；然而，我想在我的应用程序中添加一个闪屏，我正在尝试跟随一些示例，但到目前为止还没有显示闪屏。据我所知，代码应该工作，屏幕本身应该显示，不是它将100%工作，但它应该只是显示。我不确定我做错了什么，我需要一些帮助来弄清楚下一步该做什么；以下是我在尝试实现闪屏之前的代码：
import tkinter as tk
from tkinter import filedialog
import os
root = tk.Tk()
root.title("Start My Apps")
apps = []
if os.path.isfile('save.txt'):
with open('save.txt', 'r') as f:
tempApps = f.read()
tempApps = tempApps.split(',')
apps = [x for x in tempApps if x.strip()]
def addApp():
for widget in frame1.winfo_children():
widget.destroy()
filename = filedialog.askopenfilename(initialdir = "/", title="Select File", filetypes = (("executables","*.exe"),("all files" , "*")))
apps.append(filename)
print(filename)
for app in apps:
label1 = tk.Label(frame1, text = app, bg="gray")
label1.pack()
def runApps():
for app in apps:
os.startfile(app)
canvas = tk.Canvas(root, height=700, width=700, bg="#263D42")
canvas.pack(fill="both", expand=True)
frame1 = tk.Frame(root, bg="white")
frame1.place(relwidth = 0.8, relheight = 0.8, relx = 0.1, rely = 0.1)
frame2 = tk.Frame(root, bg="white")
frame2.place(relwidth = 0.8, relheight = 0.05, relx = 0.1, rely = .02)
label2 = tk.Label(frame2, text = "Welcome to: Start My Apps!", font='times 20 bold',bg="white")
label2.pack()
openFile = tk.Button(root, text = "Open File", padx = 10, pady = 5, fg="white", bg="#263D42", command = addApp)
openFile.pack()
runApps = tk.Button(root, text = "Run Apps", padx = 10, pady = 5, fg="white", bg="#263D42", command = runApps)
runApps.pack()
for app in apps:
label1 = tk.Label(frame1, text = app)
label1.pack()
root.mainloop()
with open('save.txt', 'w') as f:
for app in apps:
f.write(app + ',')代码的第二部分是在我尝试实现闪屏时：
import tkinter as tk
from tkinter import filedialog
from tkinter import *
import os
splash_root = Tk()
splash_root.title("Welcome to: Start My Apps!")
splash_root.geometry("700x700")
splash_label = Label(splash_root, text = "Welcome to: Start My Apps!", font='times 20 bold',bg="white")
splash_label.pack(pady=20)
def main_window():
root = Tk()
root.title("Start My Apps")
apps = []
if os.path.isfile('save.txt'):
with open('save.txt', 'r') as f:
tempApps = f.read()
tempApps = tempApps.split(',')
apps = [x for x in tempApps if x.strip()]
def addApp():
for widget in frame1.winfo_children():
widget.destroy()
filename = filedialog.askopenfilename(initialdir = "/", title="Select File", filetypes = (("executables","*.exe"),("all files" , "*")))
apps.append(filename)
print(filename)
for app in apps:
label1 = tk.Label(frame1, text = app, bg="gray")
label1.pack()
def runApps():
for app in apps:
os.startfile(app)
canvas = tk.Canvas(height=700, width=700, bg="#263D42")
canvas.pack(fill="both", expand=True)
frame1 = tk.Frame(bg="white")
frame1.place(relwidth = 0.8, relheight = 0.8, relx = 0.1, rely = 0.1)
frame2 = tk.Frame(bg="white")
frame2.place(relwidth = 0.8, relheight = 0.05, relx = 0.1, rely = .02)
label2 = tk.Label(frame2, text = "Welcome to: Start My Apps!", font='times 20 bold',bg="white")
label2.pack()
openFile = tk.Button(text = "Open File", padx = 10, pady = 5, fg="white", bg="#263D42", command = addApp)
openFile.pack()
runApps = tk.Button(text = "Run Apps", padx = 10, pady = 5, fg="white", bg="#263D42", command = runApps)
runApps.pack()
for app in apps:
label1 = tk.Label(frame1, text = app)
label1.pack()
mainloop()
with open('save.txt', 'w') as f:
for app in apps:
f.write(app + ',')就像我说的，我是一个新的编码风格，所以如果你看到任何其他的错误，或者只是没有意义，请让我知道！
回答 1
Stack Overflow用户
回答已采纳
发布于 2020-11-03 02:37:44
除非您将Tk()窗口放在mainloop()中，否则它不会显示出来，所以它应该是这样的：
splash_root = Tk()
splash_root.title("Welcome to: Start My Apps!")
splash_root.geometry("700x700")
splash_label = Label(
splash_root, text="Welcome to: Start My Apps!", font='times 20 bold', bg="white")
splash_label.pack(pady=20)
splash_root.after(5000,splash_root.destroy) #after(ms,func)
splash_root.mainloop()我使用splash_root.after()是因为它是一个闪屏，它必须自动销毁，而不是手动销毁。这将在5秒或5000毫秒后关闭闪屏。
这也可以解释为什么Toplevel()窗口不需要mainloop()，因为它们使用主窗口的mainloop()。
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原文链接：
https://stackoverflow.com/questions/64651158
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