我有一个加载速度非常慢的程序,并且没有迹象表明它一旦点击就加载了,所以我试图弹出一个窗口,上面写着“正在加载......请等待”,并且有一个进度条。我正在尝试使用我理解的线程,但我并不擅长使用它们。我的问题是,当我的窗口弹出时,它不会显示除默认tk窗口之外的任何内容。我认为在调用root.mainloop
或root.update
时我的问题就出现了。这是我的代码
from Tkinter import *
from PIL import Image, ImageTk
import Tkinter
import ttk
import subprocess
import threading
import time
class MainUI:
def __init__(self,parent):
self.parent = parent
self.counter = IntVar()
self.main_container = Frame(self.parent)
self.main_container.pack()
self.startThread
def center():
self.parent.update_idletasks()
w = self.parent.winfo_screenwidth()
h = self.parent.winfo_screenheight()
size = tuple(int(_) for _ in self.parent.geometry().split('+')[0].split('x'))
x = w/2 - size[0]/2
y = h/2 - size[1]/2
self.parent.geometry("%dx%d+%d+%d" % (size + (x, y)))
self.parent.lift()
def progress_bar():
ft = ttk.Frame()
ft.pack(expand=True, fill=Tkinter.BOTH, side=Tkinter.TOP)
pb = ttk.Progressbar(ft, orient='horizontal', mode='determinate', variable = self.counter, maximum=100)
pb.pack(expand=True, fill=Tkinter.BOTH, side=Tkinter.BOTTOM)
pb.start(20)
label = Tkinter.Label(self.parent, Text='Loading...Please Wait') # code before computation starts
label.pack(expand=True, fill=Tkinter.BOTH, side=Tkinter.TOP)
self.center
self.parent.lift()
self.parent.wm_title("")
self.parent.update()
def startThread(self):
def btn_start_click():
self.progress_bar()
for i in range(101):
self.counter.set(i)
time.sleep(1)
self.parent.update()
t = threading.Thread(None, btn_start_click, ())
t.start()
self.parent.update()
def op():
##p1 = subprocess.Popen(['program to open'], stdout=None)
print()
def Main():
root = Tkinter.Tk()
t1=threading.Thread(target=op)
t1.start()
MainUI(root)
root.mainloop()
t1.join()
if __name__ == '__main__':
Main()
答案 0 :(得分:1)
好吧我弄明白了我的问题。我改变的第一件事就是搬家
标签部分为main,我需要更改的第一件事是在()
之后添加btn_start_click
。其次,我需要在更新root
后更新self.counter
。第三,我需要在完成后摧毁我的窗户。我认为这就是我改变的一切。如果我没有提及所有内容,这是我的工作代码。
from Tkinter import *
from PIL import Image, ImageTk
import Tkinter
import ttk
import subprocess
import threading
import time
class MainUI:
def __init__(self,parent):
self.parent = parent
self.counter = IntVar()
self.startThread()
def center(self):
self.parent.update_idletasks()
w = self.parent.winfo_screenwidth()
h = self.parent.winfo_screenheight()
size = tuple(int(_) for _ in self.parent.geometry().split('+')[0].split('x'))
x = w/2 - size[0]/2
y = h/2 - size[1]/2
self.parent.geometry("%dx%d+%d+%d" % (size + (x, y)))
def progress_bar(self):
ft = ttk.Frame()
ft.pack(expand=True, fill=Tkinter.BOTH, side=Tkinter.TOP)
pb = ttk.Progressbar(ft, orient='horizontal', mode='determinate', variable = self.counter, maximum=45)
print(self.counter)
pb.pack(expand=True, fill=Tkinter.BOTH, side=Tkinter.BOTTOM)
self.center()
self.parent.lift()
self.parent.title("")
def startThread(self):
def btn_start_click():
self.progress_bar()
for i in range(46):
self.counter.set(i)
self.parent.update()
print(i)
time.sleep(1)
t = threading.Thread(target = btn_start_click())
t.start()
self.parent.destroy()
def op():
##p1 = subprocess.Popen(['program to open'], stdout=None)
print()
def Main():
root = Tkinter.Tk()
label = Tkinter.Label(root, Text = 'Loading...Please Wait') # code before computation starts
label.pack(expand=True, fill=Tkinter.BOTH, side=Tkinter.TOP)
t1=threading.Thread(target=op())
t1.start()
MainUI(root)
t1.join()
if __name__ == '__main__':
Main()