我有一个游戏,当创建一个按钮时,我需要我的程序才能显示此屏幕,直到他们按下“下一级”'所有这些代码都在while循环中,所以在一个大的while循环中控制游戏。
...
if game.playerDistance >= game.lowerBound() and game.playerDistance <= game.upperBound():
game.level += 1
showLevelResults(game)
#NextLevelButton
btnNextLevel = Button(root,
#Random Config
command = nextLevel,
)
btnNextLevel.place(x=1003, y=492, anchor=NW, width=247, height=78)
updateMainScreen()
while nextLev == False:
#What Do I put in here to force a wait
else:
...
nextLev = False
def nextLevel():
nextLev = True
...
目前这使它保持在while循环中,当按下按钮时没有任何变化我已经使用time.sleep(1)让它等待并且还打印等待btn按下,但是这会使控制台发出垃圾邮件按下按钮仍然不会改变屏幕。
def showGameSurvival():
game = gamemode_normal()
while game.health != 0:
game.next = False
clearScreen()
changeBackground("Survival")
#Placing Labels on the screen for game.....
#... Health
root.update()
lblCountDownLeft = Label(root, bg="White", fg="Green", font=XXLARGE_BUTTON_FONT)
lblCountDownLeft.place(x=169, y=350, anchor=CENTER)
lblCountDownRight = Label(root, bg="White", fg="Green", font=XXLARGE_BUTTON_FONT)
lblCountDownRight.place(x=1111, y=350, anchor=CENTER)
#CountDown
count = 7
while count > 0:
lblCountDownLeft['text'] = count
lblCountDownRight['text'] = count
root.update()
count -= 1
time.sleep(1)
lblCountDownLeft.destroy()
lblCountDownRight.destroy()
root.update()
#Num on left x=169, right, x=1111 y=360
game.measureDistance()
if game.playerDistance >= game.lowerBound() and game.playerDistance <= game.upperBound():
game.level += 1
clearScreen()
changeBackground("Survival")
graphicalDisplay(game)
#NextLevelButton
btnNextLevel = Button(root,
bg= lbBlue,
fg="white",
text="Level" + str(game.level),
font=SMALL_BUTTON_FONT,
activebackground="white",
activeforeground= lbBlue,
command= lambda: nextLevel(game),
bd=0)
btnNextLevel.place(x=1003, y=492, anchor=NW, width=247, height=78)
root.update()
while game.next == False:
print(game.next)
else:
game.health -= 1
if game.allowance > 4:
game.allowance = int(game.allowance*0.9)
#when game is over delete the shit
if game.health == 0:
del game
现在,下一个按钮调用此功能:def nextLevel(game):
game.next = True
答案 0 :(得分:9)
让tkinter等待某个事件的最简单方法是调用其中一个“等待”函数,例如wait_variable,wait_window或wait_visibility。
在您的情况下,您希望等待按钮单击,以便您可以使用wait_variable
,然后让按钮设置变量。当您单击该按钮时,将设置变量,并且当设置变量时,将返回对wait_variable
的调用。
例如:
import tkinter as tk
root = tk.Tk()
...
var = tk.IntVar()
button = tk.Button(root, text="Click Me", command=lambda: var.set(1))
button.place(relx=.5, rely=.5, anchor="c")
print("waiting...")
button.wait_variable(var)
print("done waiting.")
注意:您不必使用IntVar
- 任何特殊的Tkinter变量都可以。此外,无论您将其设置为什么,该方法都会等到它发生变化。
答案 1 :(得分:1)
仅想添加评论,但没有足够的声誉。我无法在按钮上使用wait_variable(var)为我工作。我必须在框架上使用它。我猜想这是Python 2和3之间的一个变化。
这是我遇到的错误:
回溯(最近通话最近一次):
文件“ AutoPlotHydroData2.py”,第434行,在 btnOK.wait_variable(okVar) AttributeError:“ NoneType”对象没有属性“ wait_variable”
我的工作代码为:
# Launch frame to collect needed input values
myFrame = tk.Tk()
myFrame.configure(background='lightblue')
# Add some widgets
# OK Button
okVar = tk.IntVar()
btnOK = tk.Button(myFrame, text="Submit", pady=5, font=("Arial Bold", 10),
bg='lightgray', command=lambda: okVar.set(1)).grid(row=14, column=0)
# Show frame
myFrame.tkraise()
# Wait for OK button to be pressed
#btnOK.wait_variable(okVar) - this didn't work
myFrame.wait_variable(okVar)
# Close frame
myFrame.destroy()
我将此代码循环处理多个文件。希望这对某人有帮助。