在我的项目中,我实现了一个与可穿戴传感器接口的图形界面。 我编写了一个代码(multi.py),直接与3个传感器接口。然后我为图形界面(GUI.py)编写了一些代码,当我单击按钮时,它会调用multi.py的不同部分
当我从相应的按钮中调用“configure_clicked()”和“download_clicked()”时,GUI会冻结(继续工作),因为调用函数(multi.configure&;multi.download)需要一些时间才能完成(连接到设备并从设备下载数据)。我知道我必须再做一个“线程”——>;多线程。请问,谁能帮我创建一个多线程
我还有一个“进度条”,它应该在每个函数的开始处启动,但“configure_clicked()”和“download_clicked()”不会出现这种情况,而我设法将它滑动到“start_clicked”和“stop_clicked”之间
我正在附上密码。 提前感谢任何帮助我的人
from tkinter import *
from tkinter import messagebox, ttk
import multi_sensor_acc_gyro1 as multi
class GUI:
def __init__(self,master):
self.master=master
self.states=[]
...
...
#configure button
self.btn_configure=Button(self.quadro_pulsanti_sx,relief=RAISED,command=self.configure_clicked)
#start button
self.btn_start=Button(self.quadro_pulsanti_dx,command=self.start_clicked,relief=RAISED)
#stop button
self.btn_stop=Button(self.quadro_pulsanti_dx,command=self.stop_clicked,relief=RAISED)
#download button
self.btn_download=Button(self.quadro_pulsanti_dx,command=self.download_clicked,relief=RAISED)
#save button
self.btn_save=Button(self.quadro_pulsanti_dx,relief=RAISED,command=self.save_clicked)
#reset button
self.btn_reset=Button(self.quadro_pulsanti_sx,relief=RAISED,command=self.reset_clicked)
#progress bar
self.pb=ttk.Progressbar(self.quadro_pulsanti_basso,orient=HORIZONTAL,length=350,mode="indeterminate")
self.label_pb=Label(self.quadro_pulsanti_basso,text="")
def configure_clicked(self):
mac_address=["F7:64:55:AD:0A:19","F2:A1:3A:E2:F2:ED","F9:8E:32:DD:1A:EB"]
output_1=multi.configure(mac_address)
self.states=output_1[0]
self.loggers_acc=output_1[1]
self.loggers_gyro=output_1[2]
self.label_pb.configure(text="")
messagebox.showinfo("CONFIGURE clicked","the sensors have been configured\n\nclick OK to continue")
def start_clicked(self):
multi.start(self.states)
self.pb.start()
self.label_pb.configure(text="registration in progress...")
def stop_clicked(self):
self.pb.stop()
self.label_pb.configure(text="")
multi.stop(self.states)
def download_clicked(self):
#self.pb.start()
#self.label_pb.configure(text="Download in progress...")
output_2=multi.download(self.states,self.loggers_acc,self.loggers_gyro)
self.df_tr_tot=output_2[0]
self.df_gd_tot=output_2[1]
self.df_gs_tot=output_2[2]
#self.label_pb.configure(text="")
#self.pb.stop()
messagebox.showinfo("DOWNLOAD clicked","the data has been downloaded\n\nclick OK to continue")
def save_clicked(self):
#self.txt_pz.focus_set()
#self.txt_pz.get()
self.txt_pz.focus_set()
id_pz=self.txt_pz.get()
multi.save(self.df_tr_tot,self.df_gd_tot,self.df_gs_tot,id_pz)
messagebox.showinfo("SAVE clicked","I dati sono stati salvati\n\ncliccare OK per continuare")
window = Tk()
window.title(" Grafic User Interface for MMR")
window.iconbitmap('C:/Users/salvo/Documents/MetaWear-SDK-Python/examples/favicon.ico')
height=560
width=540
left=(window.winfo_screenwidth()-width)/2
top=(window.winfo_screenheight()-height)/2
geometry="%dx%d+%d+%d" % (width,height,left,top)
window.geometry(geometry)
gui=GUI(window)
window.mainloop()
发生的情况是,您的计算和Tkinter都存在于同一个线程中,因此为了执行计算,Tkinter的
mainloop()
的执行必须暂停,直到这些进程完成。最简单的解决方案是添加一些helper方法,并在按下按钮时在单独的线程中调用它们:你也可以用其他方法做类似的事情。之后一切都会好起来的
这是确保tkinter在运行长任务时不会停止响应的方法:
当需要运行操作时,调用
operation
,它将启动新线程。注意:确保新线程中没有任何tkinter内容,因为tkinter会崩溃相关问题 更多 >
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