我如何从 kivy 中的'Add'按钮创建的文本输入访问文本输入

Question

我想保存我放在添加按钮上创建的TextInputs中的文本输入，我想访问它们，这样我就可以保存在一个文件中。我尝试创建id，然后尝试添加它们，但它不起作用。我也尝试了其他一些使用id的方法，但它也不起作用，我想把它们保存在txt文件中，这样我以后可以访问它们，有什么建议吗？这是py文件

from datetime import date
from kivy.app import App
from kivy.factory import Factory
from kivy.uix.gridlayout import GridLayout
from kivy.properties import ObjectProperty

class MyGrid(GridLayout) :
id_1 = ObjectProperty(None)
id_2 = ObjectProperty(None)
id_3 = ObjectProperty(None)
id_4 = ObjectProperty(None)
id_5 = ObjectProperty(None)
id_6 = ObjectProperty(None)
id_7 = ObjectProperty(None)
id_10 = ObjectProperty(None)

def perfundo (self) :
file = open('F:\F\F\' + self.id_1.text + '-' + str(date.today()) + '.txt', 'x')
file.write('Emri dhe mbiemri :' + self.id_1.text + 'n' + 'Lloji i vetures :' + self.id_2.text + 'n' + 'Nr. i telefonit :' + self.id_3.text + 'n' + 'Problemi :' + self.id_4.text+ 'n' + 'idk :' + self.id_5.text+self.id_6.text+self.id_7.text)
file.close()
def add(self):
self.ids.parts_text_inputs.add_widget(Factory.PartsTextInputs())
class HAZApp(App) :
def build (self) :
return MyGrid()

app = HAZApp()
app.run()

这是kv文件

<PartsTextInputs@BoxLayout>:  # this is a rule for building the parts TextInputs
size_hint_y: None
height: self.minimum_height
spacing: 20
TextInput:
size_hint_y: None
height: 48
id:txtinp1
BoxLayout:
size_hint_y: None
height: self.minimum_height
TextInput:
size_hint_y: None
height: 48
id:txtinp2
TextInput:
size_hint_y: None
height: 48
id:txtinp3
<MyGrid>
id: HAZ
id_1: emridhembiemri
id_2:llojiivetures
id_3:numriitelefonit
id_4:problemi
id_5:txtinp1
id_6:txtinp2
id_7:txtinp3
id_10:add
# rows: 10
cols: 1
padding: 10
spacing: 10
canvas.before:
Rectangle:
pos: self.pos
size: self.size
source: 'photo.jpg'
BoxLayout:
canvas.before:
Color:
rgba: 0.4,0.5,0.8,1
Rectangle:
size: self.size
pos: self.pos
Label:
font_size: '40sp'
outline_color: 0, 0, 0
outline_width: 2
text: 'Auto Servis "Haziri"'
BoxLayout:
spacing:10
Label:
text:"Name"
font_size: 20
color:0.4,0.5,0.8,1
Label:
text:"Type of car"
font_size: 20
color:0.4,0.5,0.8,1
Label:
text:"Phone number"
font_size: 20
color:0.4,0.5,0.8,1
Label:
text:"Problem"
font_size: 20
color:0.4,0.5,0.8,1
BoxLayout:
spacing:20
TextInput:
font_size: 20
id:emridhembiemri
TextInput:
font_size: 20
id:llojiivetures
TextInput:
font_size: 20
id:numriitelefonit
TextInput:
font_size: 20
id:problemi
BoxLayout:
spacing: 20
column:2
Label:
text:'Parts'
font_size: 20
color:0.4,0.5,0.8,1
BoxLayout:
Label:
text:'price for parts'
font_size: 20
color:0.4,0.5,0.8,1
Label:
text:'price for work'
font_size: 20
color:0.4,0.5,0.8,1
ScrollView:
size_hint_y: 3  # Since this is part of a GridLayout space is assigned by size_hint ratios
BoxLayout:
id: parts_text_inputs  # this will contain all the parts TextInputs
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
PartsTextInputs:# this is the first of the parts TextInputs

BoxLayout:
Button:
id:add
text:'Add'
on_press:root.add()
BoxLayout:
column:4
Label:
text:''
Label:
text:''
Label:
text:''
Label:
text:'Total'

BoxLayout:
column:4
Label:
text:''
Label:
text:''
Label:
text:''
Button:
text:'total'
BoxLayout:
Label:
text:''
Button:
text:'Finish'
font_size: 20
on_press:root.perfundo()
on_press: app.stop()
Label:
text:''

Answer 1

您需要保存对它们的引用以便以后访问。例如，类级别的textinputs = ListProperty()，然后是t = YourTextInput(); self.textinputs.append(t); something.add_widget(t)，然后您可以在其他地方通过self.textinputs访问列表。