Python 为什么稍后声明的小部件首先出现?
我正在使用Python的tkinter库创建一个小型GUI。该应用程序的代码如下:Python 为什么稍后声明的小部件首先出现?,python,tkinter,Python,Tkinter,我正在使用Python的tkinter库创建一个小型GUI。该应用程序的代码如下: import tkinter as tk from tkinter import ttk APP_TITLE = "HiDE" class Application(tk.Frame): """This class establishes an entity for the application""" #The constructor of this class def __init__
import tkinter as tk
from tkinter import ttk
APP_TITLE = "HiDE"
class Application(tk.Frame):
"""This class establishes an entity for the application"""
#The constructor of this class
def __init__(self, master=None):
tk.Frame.__init__(self,master)
self.grid()
def setupWidgets(self):
self.message = tk.Label(self,text='Login')
self.quitButton = tk.Button(self,text='Quit',command=self.quit)
self.logButton = tk.Button(self,text='Login',command=self.quit)
self.master.title(APP_TITLE)
self.master.minsize("300","300")
self.master.maxsize("300","300")
self.message.grid()
self.logButton.grid()
self.quitButton.grid()
#Setting up the application
app = Application()
img = tk.PhotoImage(file='icon.png')
#getting screen parameters
w = h = 300#max size of the window
ws = app.master.winfo_screenwidth() #This value is the width of the screen
hs = app.master.winfo_screenheight() #This is the height of the screen
# calculate position x, y
x = (ws/2) - (w/2)
y = (hs/2) - (h/2)
#This is responsible for setting the dimensions of the screen and where it is placed
app.master.geometry('%dx%d+%d+%d' % (w, h, x, y))
app.master.tk.call('wm', 'iconphoto', app.master._w, img)
app.master.i_con = tk.Label(app.master, image=img)
app.master.i_con.grid()
app.setupWidgets() #<-- This is the function call
app.mainloop()
设置图像后会调用setupWidgets函数,但输出为:
当您使用图像对标签进行网格化时,您已经在类中调用了框架上的网格。这个类是放置其他小部件的地方,因此它被放置在带有图像的标签上方 而不是
app.master.i_con = tk.Label(app.master, image=img)
试一试
将带有图像的标签与其他小部件一起放在框架中
顺便说一句,在没有指定行和列的情况下调用grid是没有意义的。在看到这一点之前,我还没有真正开始定位小部件。这就是为什么没有争吵和争吵。。
app.master.i_con = tk.Label(app, image=img)