我有一个来自与arduino通信的tkinter图形界面的代码,碰巧我得到时间打开和关闭的时间,所以我将每个当前时间与无限循环中的输入进行比较,该循环仅用于当第二个输入代码这里的条目要求关闭LED结束时,会发生当它进入循环时tkinter没有响应。
from tkinter import *
import serial
from time import strftime
conexao = serial.Serial('COM3', 9600, timeout=0.5)
cont=0
janela = Tk()
def ligar():
global cont
cont=cont+1
if cont==1:
valor=bytes(('1'),'utf-8')
conexao.write(valor)
ligar['text']='Desligar led'
elif cont==2:
valor=bytes(('2'),'utf-8')
conexao.write(valor)
ligar['text']='Ligar led'
cont=0
def agendar():
comeco= start.get()
final= limit.get()
while 1>0:
if comeco == strftime('%H:%M:%S'):
valor=bytes(('1'),'utf-8')
conexao.write(valor)
elif final == strftime('%H:%M:%S'):
valor=bytes(('2'),'utf-8')
conexao.write(valor)
break
ligar=Button(janela,command=ligar,text='ligar',width="60")
ligar.grid(row=1)
texto=Label(text='Defina o começo:').grid(row=2)
start=Entry(janela)
start.grid(row=3)
texto2=Label(text='Defina o fim:').grid(row=4)
limit=Entry(janela)
limit.grid(row=5)
salvar=Button(janela,width="30",text='Salvar Horarios',command=agendar)
salvar.grid(row=6)
答案 0 :(得分:1)
您可以使用线程,而不是使用after
方法,这允许您的GUI与while循环同时运行。
import threading
from tkinter import *
import serial
from time import strftime
conexao = serial.Serial('COM3', 9600, timeout=0.5)
cont=0
janela = Tk()
def ligar():
global cont
cont=cont+1
if cont==1:
valor=bytes(('1'),'utf-8')
conexao.write(valor)
ligar['text']='Desligar led'
elif cont==2:
valor=bytes(('2'),'utf-8')
conexao.write(valor)
ligar['text']='Ligar led'
cont=0
def agendar():
global start,limit
comeco= start.get()
final= limit.get()
while 1>0:
if comeco == strftime('%H:%M:%S'):
valor=bytes(('1'),'utf-8')
conexao.write(valor)
elif final == strftime('%H:%M:%S'):
valor=bytes(('2'),'utf-8')
conexao.write(valor)
break
global start,limit
ligar=Button(janela,command=ligar,text='ligar',width="60")
ligar.grid(row=1)
texto=Label(text='Defina o começo:').grid(row=2)
start=Entry(janela)
start.grid(row=3)
texto2=Label(text='Defina o fim:').grid(row=4)
limit=Entry(janela)
limit.grid(row=5)
salvar=Button(janela,width="30",text='Salvar Horarios',command=lambda: threading.Thread(target=agendar).start())
salvar.grid(row=6)
这是一个简短的细分:
注意:我定义了limit并以全局变量开头,但我不确定你是否需要它。
另外,我还没有测试过,但我确信它有效。
答案 1 :(得分:0)
您应该使用 if (Build.VERSION.SDK_INT >= 23) {
alarm.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP,
interval *
SystemClock.elapsedRealtime() +
60 * 1000 , pending);
} else if (Build.VERSION.SDK_INT >= 19) {
alarm.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, interval *
SystemClock.elapsedRealtime() +
60 * 1000, pending);
} else {
alarm.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, interval *
SystemClock.elapsedRealtime() +
60 * 1000, pending);
}
定期运行代码。
我无法测试,但我会做
after