tkinter 類繼承的三種方式

tkinter class繼承有三種方式。

提醒注意這幾種繼承的運行方式

一、繼承 object

1.鋪tk.Frame給parent：

說明：

• self.rootframe = tk.Frame(parent)
• tk.Label(self.rootframe)

import tkinter as tk

class MyApp(object):
    def __init__(self, parent):
        self.rootframe = tk.Frame(parent)
        self.rootframe.pack()
        
        self.setupUI()
        
        
    def setupUI(self):
        tk.Label(self.rootframe, text='標簽').pack()
        

if __name__ == '__main__':
    root = tk.Tk()
    MyApp(root) # 注意這句
    root.mainloop()

2.直接使用root

說明：

• self.root = parent
• tk.Label(self.root)

import tkinter as tk

class MyApp(object):
    def __init__(self, parent, **kwargs):
        self.root = parent
        self.root.config(**kwargs)
        
        self.setupUI()
    
    def setupUI(self):
        tk.Label(self.root, text = '標簽').pack()

        
if __name__ == '__main__':
    root = tk.Tk()
    app = test(root)
    root.mainloop()

二、繼承 tk.Tk

import tkinter as tk

class MyApp(tk.Tk):
    
    def __init__(self):
        super().__init__()
        
        self.setupUI()

        
    def setupUI(self):
        tk.Label(self, text='標簽').pack()
        
        
if __name__ == '__main__':
    MyApp().mainloop()

三、繼承 tk.Frame

分兩種情況

1.有parent

import tkinter as tk

class MyApp(tk.Frame):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.pack()
        
        self.setupUI()
        
        
    def setupUI(self):
        tk.Label(self, text='標簽').pack()
        
        
if __name__ == '__main__':
    MyApp(tk.Tk()).mainloop()
    #MyApp().mainloop() # 也可以這樣

注意： self.pack()

2.沒有parent

import tkinter as tk

class MyApp(tk.Frame):
    
    def __init__(self):
        super().__init__()
        self.pack()
        
        self.setupUI()

    
    def setupUI(self):
        tk.Label(self, text='標簽').pack()
        
        
if __name__ == '__main__': 
    MyApp().mainloop()