短版:
如何从Kivy应用程序的main.py
文件更改屏幕上显示的按钮文本?在
加长版: 我用Kivy做了一个选择题游戏。在
我让游戏在python级别按我所希望的那样工作:当用户点击正确的答案按钮时,他们将获得分数,而附加在按钮上的答案也会发生变化。在引擎盖下一切似乎都很好。在
我的问题是我不知道如何从main.py
文件更新屏幕上显示的按钮上的文本。这个游戏玩得很好,但是按钮上显示的文字永远不会改变。如何修复代码以实现此目的?在
下面是我要做的事情的简化版本:
我的main.py
文件:
# -*- coding: utf-8 -*-
from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen, NoTransition
from kivy.properties import ObjectProperty
from functools import partial
import random
vocabDict = {'latte': 'milk', 'mela': 'apple', 'melograno': 'pomegranate', 'fragola': 'strawberry', 'acqua': 'water'}
vocabList = ['acqua', 'latte', 'mela', 'melograno', 'fragola']
currentWord = 'acqua'
score = 0
class ScreenOne(Screen):
pass
class ScreenTwo(Screen):
def __init__(self,**kwargs):
super(ScreenTwo, self).__init__(**kwargs)
Screen.currentWord = self.getCurrentWord()
Screen.questionText = Screen.currentWord
Screen.vocabDict = self.getVocabDict()
Screen.currentScore = self.getCurrentScore()
Screen.possibleAnswerList = [Screen.currentWord]
self.playHand(Screen.currentWord,Screen.vocabDict,Screen.currentScore)
def getCurrentWord(self):
return currentWord
def getVocabDict(self):
return vocabDict
def getCurrentScore(self):
return score
def playHand(self,currentWord,vocabDict,score):
possibleAnswerList = [currentWord]
currentWord = currentWord
vocabDict = vocabDict
currentScore = score
while len(possibleAnswerList) < 3:
potentialChoice = random.choice(vocabDict.keys())
if potentialChoice not in possibleAnswerList:
possibleAnswerList.append(potentialChoice)
random.shuffle(possibleAnswerList)
# How do I visualize these changes on screen?
Screen.button1Text = vocabDict[possibleAnswerList[0]]
Screen.button2Text = vocabDict[possibleAnswerList[1]]
Screen.button3Text = vocabDict[possibleAnswerList[2]]
Screen.possibleAnswerList = possibleAnswerList
print "Screen.button1Text = " + Screen.button1Text
print "Screen.button2Text = " + Screen.button2Text
print "Screen.button3Text = " + Screen.button3Text
def button1Pressed(instance):
print "Screen.possibleAnswerList[0] = " + Screen.possibleAnswerList[0]
print "Screen.currentWord = " + Screen.currentWord
if Screen.possibleAnswerList[0] == Screen.currentWord:
print "Correct!"
Screen.currentScore += 1
print Screen.currentScore
instance.playHand(Screen.currentWord,Screen.vocabDict,Screen.currentScore)
else:
print "Incorrect!"
def button2Pressed(instance):
if Screen.possibleAnswerList[1] == Screen.currentWord:
print "Correct!"
Screen.currentScore += 1
print instance.currentScore
instance.playHand(Screen.currentWord,Screen.vocabDict,Screen.currentScore)
else:
print "Incorrect!"
def button3Pressed(instance):
if instance.possibleAnswerList[2] == currentWord:
print "Correct!"
instance.currentScore += 1
print instance.currentScore
instance.playHand(Screen.currentWord,Screen.vocabDict,Screen.currentScore)
else:
print "Incorrect!"
class Manager(ScreenManager):
screen_one = ObjectProperty(None)
screen_two = ObjectProperty(None)
class ScreensApp(App):
def build(self):
m = Manager(transition=NoTransition())
return m
if __name__ == "__main__":
ScreensApp().run()
我的screens.kv
文件:
很明显,我是Kivy的初学者,所以如果你能告诉我我需要改变什么,包括应该使用的特定语法,我将非常感激。在
提前感谢你的时间和智慧。在
您需要使button1/2/3Text成为StringProperty,例如
请在其他地方也用self替换Screen,因为您将变量放在kivy类上,而且它很奇怪;)
我希望这对你有帮助
相关问题 更多 >
编程相关推荐