tkinter界面卡死的解决办法

 0、如果点击按钮,运行了一个比较耗时的操作,那么界面会卡死

import tkinter as tk
import time

def onclick(text, i):
   time.sleep(3)
   text.insert(tk.END, '按了第{}个按钮\n'.format(i))

   
   
root = tk.Tk()

text = tk.Text(root)
text.pack()

tk.Button(root, text='按钮1', command=lambda :onclick(text,1)).pack()
tk.Button(root, text='按钮2', command=lambda :onclick(text,2)).pack()

root.mainloop()

 

解决办法:

方式一、直接开线程

import tkinter as tk
import time
import threading


songs = ['爱情买卖','朋友','回家过年','好日子']
movies = ['阿凡达','猩球崛起']

def music(songs):
    global text # 故意的,注意与movie的区别
    for s in songs:
        text.insert(tk.END, "听歌曲:%s \t-- %s\n" %(s, time.ctime()))
        time.sleep(3)

def movie(movies, text):
    for m in movies:
        text.insert(tk.END, "看电影:%s \t-- %s\n" %(m, time.ctime()))
        time.sleep(5)

    
def thread_it(func, *args):
    '''将函数打包进线程'''
    # 创建
    t = threading.Thread(target=func, args=args) 
    # 守护 !!!
    t.setDaemon(True) 
    # 启动
    t.start()
    # 阻塞--卡死界面!
    # t.join()


root = tk.Tk()

text = tk.Text(root)
text.pack()

tk.Button(root, text='音乐', command=lambda :thread_it(music, songs)).pack()
tk.Button(root, text='电影', command=lambda :thread_it(movie, movies, text)).pack()

root.mainloop()

 

方式二、继承 threading.Thread 类

import tkinter as tk
import time
import threading


songs = ['爱情买卖','朋友','回家过年','好日子']
movies = ['阿凡达','猩球崛起']

def music(songs):
    global text # 故意的,注意与movie的区别
    for s in songs:
        text.insert(tk.END, "听歌曲:%s \t-- %s\n" %(s, time.ctime()))
        time.sleep(3)

def movie(movies, text):
    for m in movies:
        text.insert(tk.END, "看电影:%s \t-- %s\n" %(m, time.ctime()))
        time.sleep(5)

class MyThread(threading.Thread):
    def __init__(self, func, *args):
        super().__init__()
        
        self.func = func
        self.args = args
        
        self.setDaemon(True)
        self.start()    # 在这里开始
        
    def run(self):
        self.func(*self.args)
    

root = tk.Tk()

text = tk.Text(root)
text.pack()

tk.Button(root, text='音乐', command=lambda :MyThread(music, songs)).pack()
tk.Button(root, text='电影', command=lambda :MyThread(movie, movies, text)).pack()

root.mainloop()

 

三、或者,搞一个界面类:

import tkinter as tk
import time
import threading

songs = ['爱情买卖','朋友','回家过年','好日子'] 
films = ['阿凡达','猩球崛起']

class Application(tk.Tk): def __init__(self): super().__init__() self.createUI() # 生成界面 def createUI(self): self.text = tk.Text(self) self.text.pack() tk.Button(self, text='音乐', command=lambda :self.thread_it(self.music, songs)).pack(expand=True, side=tk.RIGHT) # 注意lambda语句的作用! tk.Button(self, text='电影', command=lambda :self.thread_it(self.movie, films)).pack(expand=True, side=tk.LEFT) # 逻辑:听音乐 def music(self, songs): for x in songs: self.text.insert(tk.END, "听歌曲:%s \t-- %s\n" %(x, time.ctime())) print("听歌曲:%s \t-- %s" %(x, time.ctime())) time.sleep(3) # 逻辑:看电影 def movie(self, films): for x in films: self.text.insert(tk.END, "看电影:%s \t-- %s\n" %(x, time.ctime())) print("看电影:%s \t-- %s" %(x, time.ctime())) time.sleep(5) # 打包进线程(耗时的操作) @staticmethod def thread_it(func, *args): t = threading.Thread(target=func, args=args) t.setDaemon(True) # 守护--就算主界面关闭,线程也会留守后台运行(不对!) t.start() # 启动 # t.join() # 阻塞--会卡死界面! app = Application() app.mainloop()

 

posted @ 2016-02-12 02:37  罗兵  阅读(9690)  评论(1编辑  收藏