我想绑定一个python类(从BoxLayout小部件inheres)的属性,以及该类的kv配置文件。Kivy Python - 传递参数并绑定kv和python文件
我想要做的是将一些值传递给类,并在kv文件TextInput id(这是该类的kv描述)旁边打印该值。当我跑我的代码时,我得到一个错误:
TypeError: addBoxClass() missing 1 required positional argument: 'someNumber'
我认为我过于复杂的事情,因为这应该是相当简单的。 我的一些代码位,我希望它是明确的:
#at some point in my main code I call SomeClass
box=SomeClass()
box.add_widget(SomeClass.addBoxClass(someNumber)) #someNumber is a value that I want to print in def printInput, next to the kv file's TextInput id.
#then this is the class
class SomeClass(BoxLayout):
def __init__(self, **kwargs):
super(NumOfRoomsClass, self).__init__(**kwargs)
self.number = None
def addBoxClass(self,someNumber):
self.number = someNumber #This is where I get my error
#create and rern a label
boxLabel = BoxLayout()
Lab = Label(text= self.number)
boxLabel.add_widget(Lab)
return (boxLabel)
def printInput(self, text):
input= int(text)
print ("self.number = ", self.number , "input = ",input) #This is what I'm aftre
,并在我的.kv文件I`ve得到这个:
<SomeClass>:
Label:
text: "Number of rooms"
TextInput:
multiline: False
id: inputId
on_text_validate: root.printInput(inputId.text)