如何在另一个文本输入中获取选定的文本。出现错误“'ScreenManager' 对象没有属性 'widget_1'”
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【中文标题】如何在另一个文本输入中获取选定的文本。出现错误“\'ScreenManager\' 对象没有属性 \'widget_1\'”【英文标题】：How can I get selected text in another textinput. Getting error "'ScreenManager' object has no attribute 'widget_1'"如何在另一个文本输入中获取选定的文本。出现错误“'ScreenManager' 对象没有属性 'widget_1'” 【发布时间】：2021-03-25 09:55:59 【问题描述】：我正在尝试将所选文本从 recycleview 获取到 txt_input1，但它会引发错误。它在单独的 .py 文件中工作，但后来我将代码转移到我的 run1.py 文件中，但它不起作用新代码是 start 和 end 包含在 cmets "#Start" 和 "end" 中
run1.py 文件
from kivy.lang import Builder
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.properties import ObjectProperty
from Option import OptionApp
import sys, time, threading
from kivy.uix.screenmanager import ScreenManager, Screen
from datetime import datetime
import pandas_datareader.data as web
import pandas as pd
from kivymd.uix.screen import Screen
from kivymd.uix.list import MDList,ThreeLineListItem,ThreeLineAvatarIconListItem
from kivymd.uix.list import IconLeftWidget,ImageLeftWidget
from kivy.uix.scrollview import ScrollView
from kivy.uix.button import Button
from kivymd.app import MDApp
from kivy.app import App
from kivy.properties import ObjectProperty
import csv
from os import path
from kivy.uix.image import Image
from kivy.app import App
from kivy.uix.textinput import TextInput
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.floatlayout import FloatLayout
from kivy.properties import NumericProperty, ListProperty, BooleanProperty, ObjectProperty, StringProperty
from kivy.uix.recycleview import RecycleView
from kivy.uix.recyclegridlayout import RecycleGridLayout
from kivy.uix.recycleview.views import RecycleDataViewBehavior
from kivy.uix.label import Label
from kivy.uix.recycleboxlayout import RecycleBoxLayout
from kivy.uix.behaviors import FocusBehavior
from kivy.uix.recycleview.layout import LayoutSelectionBehavior
import pandas as pd
kv = Builder.load_file("run1.kv")
#Start
class SelectableRecycleBoxLayout(FocusBehavior, LayoutSelectionBehavior,
RecycleBoxLayout):
''' Adds selection and focus behaviour to the view. '''
class SelectableLabel(RecycleDataViewBehavior, Label):
''' Add selection support to the Label '''
index = None
selected = BooleanProperty(False)
selectable = BooleanProperty(True)
txt_input1 = ObjectProperty(None)
txt_input = ObjectProperty(None)
def refresh_view_attrs(self, rv, index, data):
''' Catch and handle the view changes '''
self.index = index
return super(SelectableLabel, self).refresh_view_attrs(
rv, index, data)
def on_touch_down(self, touch):
''' Add selection on touch down '''
if super(SelectableLabel, self).on_touch_down(touch):
return True
if self.collide_point(*touch.pos) and self.selectable:
return self.parent.select_with_touch(self.index, touch)
def apply_selection(self, rv, index, is_selected):
''' Respond to the selection of items in the view. '''
self.selected = is_selected
if is_selected:
# self.root.ids.txt_input1.text = str(rv.data[index].get("text"))
App.get_running_app().root.widget_1.ids.txt_input1.text = str(rv.data[index].get("text"))
class RV(RecycleView):
def __init__(self, **kwargs):
super(RV, self).__init__(**kwargs)
class DropDownWidget(BoxLayout):
txt_input = ObjectProperty()
rv = ObjectProperty()
txt_input1 = ObjectProperty()
class MyTextInput(TextInput):
txt_input = ObjectProperty()
txt_input1 = ObjectProperty(None)
flt_list = ObjectProperty()
word_list = ListProperty()
# this is the variable storing the number to which the look-up will start
starting_no = NumericProperty(3)
suggestion_text = ''
def __init__(self, **kwargs):
super(MyTextInput, self).__init__(**kwargs)
def on_text(self, instance, value):
# find all the occurrence of the word
self.parent.ids.rv.data = []
matches = [self.word_list[i] for i in range(len(self.word_list)) if
self.word_list[i][:self.starting_no] == value[:self.starting_no]]
# display the data in the recycleview
display_data = []
for i in matches:
display_data.append('text': i)
self.parent.ids.rv.data = display_data
# ensure the size is okay
if len(matches) <= 10:
self.parent.height = (50 + (len(matches) * 20))
else:
self.parent.height = 240
def keyboard_on_key_down(self, window, keycode, text, modifiers):
if self.suggestion_text and keycode[1] == 'tab':
self.insert_text(self.suggestion_text + ' ')
return True
return super(MyTextInput, self).keyboard_on_key_down(window, keycode, text, modifiers)
class Body(Screen):
def __init__(self, **kwargs):
super(Body, self).__init__(**kwargs)
f = pd.read_csv("stoploss.csv")
fl = len(f.index)
file = pd.DataFrame(f, columns=['Stock Symbol', 'Purchase Price', 'Stock Name', 'Stop Loss(%)'])
j = 0
wl = []
for i in range(fl):
for index in range(1):
columnSeriesObj = file.iloc[:, 2]
# pp = iter(columnSeriesObj.values)
# pp1 = next(pp)
# print(pp1)
wl.append(columnSeriesObj.values[i])
tp = tuple(wl)
print(str(tp))
self.widget_1 = DropDownWidget(pos_hint='center_x': .5, 'center_y': .5,
size_hint=(None, None), size=(600, 60))
self.widget_1.ids.txt_input.word_list = wl
self.widget_1.ids.txt_input.starting_no = 3
self.add_widget(self.widget_1)
#End
class signin(Screen):
user_name = ObjectProperty(None)
def btn(self):
username = self.user_name.text
print(username)
sm.current = 'option_screen'
class option(Screen):
def btn_addstock(self):
sm.current = 'body_screen'
def btn_stoplosslist(self):
sm.canvas.clear()
sm.current = 'Stoploss_ip'
class stockinput(Screen):
stock_name = ObjectProperty(None)
stock_symbol = ObjectProperty(None)
purchase_price = ObjectProperty(None)
stop_loss = ObjectProperty(None)
def btn(self):
end = datetime.today().date()
start = end.year - 10
start = datetime(start, datetime.today().month, datetime.today().day).date()
uname = input("Enter user name: ")
print("Stock Name:", self.stock_name.text, "Stock Symbol:", self.stock_symbol.text)
print("Purchase Price:",self.purchase_price.text,"Stop Loss(%):",self.stop_loss.text)
#write data to csv file
# if path.exists("stoploss.csv"):
# myFile = open('stoploss.csv', 'a')
# else:
# myFile = open('stoploss.csv', 'w')
file_name = stockinput.uname + "_stoploss.csv"
if path.exists(file_name):
with open(file_name, "a+", newline='')as newFile :
fieldnames = ["Stock Name", "Stock Symbol", "Purchase Price", "Stop Loss(%)"]
newFileWriter = csv.DictWriter(newFile, fieldnames=fieldnames)
newFileWriter.writerow("Stock Name" : self.stock_name.text,"Stock Symbol" : self.stock_symbol.text,"Purchase Price" : self.purchase_price.text,"Stop Loss(%)" : self.stop_loss.text)
else:
myFile = open(file_name, 'w+')
myData = [["Stock Name", "Stock Symbol", "Purchase Price", "Stop Loss(%)"],[self.stock_name.text, self.stock_symbol.text, self.purchase_price.text, self.stop_loss.text]]
with myFile:
writer = csv.writer(myFile)
writer.writerows(myData)
df = web.DataReader(self.stock_symbol.text, 'yahoo', start, end,)
print(df.tail())
self.stock_name.text = ""
self.stock_symbol.text = ""
self.purchase_price.text = ""
self.stop_loss.text = ""
f = pd.read_csv("stoploss.csv")
file = pd.DataFrame(f, columns=['Stock Symbol','Purchase Price','Stock Name','Stop Loss(%)'])
class img(Screen):
def build(self,**kwargs):
super(img, self).__init__(**kwargs)
screen = self
image = Image(source='please_wait.gif')
screen.add_widget(image)
class ListApp(Screen):
# def imgpr(self,**kwargs):
# super(ListApp, self).__init__(**kwargs)
#
# time.sleep(0.1)
# t = threading.Thread(target=imgpr)
# t.start()
def build(self,**kwargs):
super(ListApp, self).__init__(**kwargs)
flag = True
screen = self
# if flag:
#
#
# sm.add_widget(ListApp(name='Stoploss_ip'))
end = datetime(2020, 12, 14)
start = datetime(2020, 12, 14)
btn = Button(text="Back",
font_size="20sp",
background_color=(255/255, 229/255, 204/255, 1),
color=(1, 1, 1, 1),
size=(12, 12),
size_hint=(.1, .05),
pos=(600, 500))
btn.bind(on_press=lambda *args: setattr(sm, 'current', "option_screen"))
scroll = ScrollView()
list_view = MDList()
scroll.add_widget(list_view)
i = 0
fl = len(file.index)
try:
for index in range(fl):
for index in range(1):
columnSeriesObj2 = file.iloc[:, 0]
df = web.DataReader(columnSeriesObj2.values[i],'yahoo', start, end,retry_count=3)
print(df.head())
Objname = file.iloc[:, 2]
columnSeriesObj = df.iloc[:, 3]
columnSeriesObj1 = file.iloc[:, 1]
ObjStoploss = file.iloc[:, 3]
cp = iter(columnSeriesObj.values)
pp = iter(columnSeriesObj1.values)
pp1 = next(pp)
cp1 = columnSeriesObj.values[0]
sl = columnSeriesObj1.values[i] - (columnSeriesObj1.values[i] * (ObjStoploss.values[i]/100))
if cp1 <= sl:
image = ImageLeftWidget(source='loss.png')
items = ThreeLineAvatarIconListItem(text="Alert sale " + Objname.values[i], secondary_text='Close price: '+str(cp1),
tertiary_text='Stoploss: ' + str(sl))
items.add_widget(image)
list_view.add_widget(items)
i=i+1
else:
image = ImageLeftWidget(source='profit.jpg')
items = ThreeLineAvatarIconListItem(text="Chill " + Objname.values[i],
secondary_text='Close price: ' + str(cp1),
tertiary_text='Stoploss: ' + str(sl))
items.add_widget(image)
list_view.add_widget(items)
i=i+1
except ConnectionAbortedError:
print("Check your Internet connection")
except ConnectionRefusedError:
print("Check your Internet connection")
except ConnectionError:
print("Check your Internet connection")
except ConnectionResetError:
print("Check your Internet connection")
except TimeoutError:
print("Timeout!!!!...Check your Internet connection")
except KeyError:
pass
except:
print("Something went wrong")
print("Done")
# flag = False
# if flag ==False:
screen.add_widget(scroll)
screen.add_widget(btn)
# return screen
class WindowsManager(ScreenManager):
pass
sm = ScreenManager()
sm.add_widget(signin(name='signin_screen'))
sm.add_widget(option(name='option_screen'))
sm.add_widget(stockinput(name='stockinput_screen'))
sm.add_widget(img(name='image_screen'))
sm.add_widget(ListApp(name='Stoploss_ip'))
sm.add_widget(Body(name='body_screen'))
class run1(MDApp):
def build(self):
return sm
if __name__ == "__main__":
run1().run()
run1.kv 文件
<WindowsManager>:
signin:
option:
stockinput:
ListApp:
Body:
<Body>:
name: 'body_screen'
canvas.before:
Color:
rgba: 188/255, 143/255, 145/255, 1
Rectangle:
pos: self.pos
size: self.size
<DropDownWidget>:
id: DropDownWidget
canvas:
Color:
rgba:(1, 1, 1, 1)
Rectangle:
# pos: self.pos
size: self.size
# orientation: 'vertical'
spacing: 20
txt_input: txt_input
rv: rv
txt_input1: txt_input1
MyTextInput:
id: txt_input1
pos: 400,300
size_hint_y: None
height: 50
MyTextInput:
id: txt_input
hint_text:'Enter here'
size_hint_y: None
height: 50
RV:
id: rv
<MyTextInput>:
id: MyTextInput
readonly: False
multiline: False
<SelectableLabel>:
id: SelectableLabel
# Draw a background to indicate selection
color: 0,0,0,1
canvas.before:
Color:
rgba: (0, 0, 1, .5) if self.selected else (1, 1, 1, 1)
Rectangle:
# pos: self.pos
size: self.size
<RV>:
canvas:
Color:
rgba: 0,0,0,.2
Line:
rectangle: self.x +1 , self.y, self.width - 2, self.height -2
bar_width: 10
scroll_type:['bars']
viewclass: 'SelectableLabel'
SelectableRecycleBoxLayout:
default_size: None, dp(20)
default_size_hint: 1, None
size_hint_y: None
height: self.minimum_height
orientation: 'vertical'
multiselect: False
<signin>:
canvas.before:
Color:
rgba: 164/255, 66/255, 220/255, 1
Rectangle:
pos: self.pos
size: self.size
name: 'signin_screen'
user_name: user_name
GridLayout:
pos_hint: 'center_x': .75, 'center_y': .15
row_force_default : True
row_default_height : 50
col_force_default : True
col_default_width : 400
spacing: '15dp'
cols: 1
TextInput:
id: user_name
multiline:False
size_hint: 5.0 ,.1
hint_text: "Email_ID"
Button:
text:"Submit"
font_size: 20
color:0,0,0,1
size_hint: .5 ,.3
background_normal: ''
background_color: (255/255, 153/255, 71/255, 1)
on_press : root.btn()
Label:
text:"Please Do not change the Email_ID. Data will be saved as per your Email_ID"
pos: 180,80
<option>:
canvas.before:
Color:
rgba: 138/255, 104/255, 175/255, 1
Rectangle:
pos: self.pos
size: self.size
name: 'option_screen'
GridLayout:
pos_hint: 'center_x': .83, 'center_y': .18
row_force_default : True
row_default_height : 100
col_force_default : True
col_default_width : 250
spacing: '20dp'
cols:1
Button:
text:"Add Stock"
color:0,0,0,1
font_size: 18
size_hint: .1 ,.1
pos: 150,150
background_normal: ''
background_color: (204/255, 0, 204/255, 1)
on_press : root.manager.current = 'body_screen'
Button:
text:"Check Stoploss"
color:0,0,0,1
font_size: 18
size_hint: .1 ,.1
pos: 250,120
background_normal: ''
background_color:(127/255, 193/255, 184/255, 1)
on_press : root.manager.current = 'Stoploss_ip'
<stockinput>:
canvas.before:
Color:
rgba: 188/255, 143/255, 145/255, 1
Rectangle:
pos: self.pos
size: self.size
name: 'stockinput_screen'
stock_name: stock_name
stock_symbol: stock_symbol
purchase_price: purchase_price
stop_loss: stop_loss
GridLayout:
pos_hint: 'center_x': .67, 'center_y': .2
row_force_default : True
row_default_height : 40
col_force_default : True
col_default_width : 250
spacing: '10dp'
cols:2
# pos_hint: 'center_x': .53, 'center_y': .12
# row_force_default : True
# row_default_height : 30
# col_force_default : True
# col_default_width : 250
# spacing: '20dp'
Label:
text: "Stock Name: "
TextInput:
id: stock_name
multiline:False
Label:
text: "Stock Symbol: "
TextInput:
id: stock_symbol
multiline:False
Label:
text: "Purchase Price: "
TextInput:
id: purchase_price
multiline:False
Label:
text: "Stop Loss(%): "
TextInput:
id: stop_loss
multiline:False
Button:
text:"Submit"
color:102/255, 204/255, 0, 1
font_size:18
background_color: (204/255, 0, 102/255, 1)
on_press: root.btn()
Button:
text:"Back"
color:0,0,0,1
font_size:18
background_normal: ''
background_color: (204/255, 102/255, 0, 1)
on_press: root.manager.current = 'option_screen'
<img>:
name: 'image_screen'
on_enter:root.build()
<ListApp>:
name: 'Stoploss_ip'
on_enter:root.build()
我收到以下错误
"C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\python.exe" D:/FirebaseLoginScreen-master/run1.py
[INFO ] [Logger ] Record log in C:\Users\Rushi Dada\.kivy\logs\kivy_20-12-14_87.txt
[INFO ] [deps ] Successfully imported "kivy_deps.gstreamer" 0.3.1
[INFO ] [deps ] Successfully imported "kivy_deps.angle" 0.1.10
[INFO ] [deps ] Successfully imported "kivy_deps.glew" 0.1.12
[INFO ] [deps ] Successfully imported "kivy_deps.sdl2" 0.1.23
[INFO ] [Kivy ] v1.11.1
[INFO ] [Kivy ] Installed at "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\__init__.py"
[INFO ] [Python ] v3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 22:22:05) [MSC v.1916 64 bit (AMD64)]
[INFO ] [Python ] Interpreter at "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\python.exe"
[INFO ] [Factory ] 184 symbols loaded
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_pil, img_gif (img_ffpyplayer ignored)
[INFO ] [KivyMD ] v0.104.1
[INFO ] [Window ] Provider: sdl2
[INFO ] [GL ] Using the "OpenGL" graphics system
[INFO ] [GL ] GLEW initialization succeeded
[INFO ] [GL ] Backend used <glew>
[INFO ] [GL ] OpenGL version <b'4.6.0 NVIDIA 391.35'>
[INFO ] [GL ] OpenGL vendor <b'NVIDIA Corporation'>
[INFO ] [GL ] OpenGL renderer <b'GeForce GT 635M/PCIe/SSE2'>
[INFO ] [GL ] OpenGL parsed version: 4, 6
[INFO ] [GL ] Shading version <b'4.60 NVIDIA'>
[INFO ] [GL ] Texture max size <16384>
[INFO ] [GL ] Texture max units <32>
[INFO ] [Window ] auto add sdl2 input provider
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[INFO ] [Text ] Provider: sdl2
[INFO ] [GL ] NPOT texture support is available
('Tesla inc', 'Tata Motors Limited ', 'asv', 'tesla', 'ploul', 'fd', 's', 'asdsd', 'trtdfsddfdfd', 'abc')
[WARNING] [Lang ] The file D:\FirebaseLoginScreen-master\run1.kv is loaded multiples times, you might have unwanted behaviors.
[INFO ] [Base ] Start application main loop
[INFO ] [Base ] Leaving application in progress...
Traceback (most recent call last):
File "D:/FirebaseLoginScreen-master/run1.py", line 481, in <module>
run1().run()
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\app.py", line 855, in run
runTouchApp()
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\base.py", line 504, in runTouchApp
EventLoop.window.mainloop()
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\core\window\window_sdl2.py", line 747, in mainloop
self._mainloop()
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\core\window\window_sdl2.py", line 479, in _mainloop
EventLoop.idle()
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\base.py", line 342, in idle
self.dispatch_input()
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\base.py", line 327, in dispatch_input
post_dispatch_input(*pop(0))
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\base.py", line 233, in post_dispatch_input
listener.dispatch('on_motion', etype, me)
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\core\window\__init__.py", line 1402, in on_motion
self.dispatch('on_touch_down', me)
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\core\window\__init__.py", line 1418, in on_touch_down
if w.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\screenmanager.py", line 1191, in on_touch_down
return super(ScreenManager, self).on_touch_down(touch)
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\relativelayout.py", line 288, in on_touch_down
ret = super(RelativeLayout, self).on_touch_down(touch)
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\scrollview.py", line 647, in on_touch_down
if self.dispatch('on_scroll_start', touch):
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\scrollview.py", line 736, in on_scroll_start
return self.simulate_touch_down(touch)
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\scrollview.py", line 642, in simulate_touch_down
ret = super(ScrollView, self).on_touch_down(touch)
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\behaviors\focus.py", line 443, in on_touch_down
return super(FocusBehavior, self).on_touch_down(touch)
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "D:/FirebaseLoginScreen-master/run1.py", line 145, in on_touch_down
return self.parent.select_with_touch(self.index, touch)
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\behaviors\compoundselection.py", line 345, in select_with_touch
self.select_node(node)
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\recycleview\layout.py", line 103, in select_node
self.apply_selection(node, view, True)
File "C:\Users\Rushi Dada\AppData\Local\Programs\Python\Python37\lib\site-packages\kivy\uix\recycleview\layout.py", line 143, in apply_selection
view.apply_selection(self.recycleview, index, is_selected)
File "D:/FirebaseLoginScreen-master/run1.py", line 155, in apply_selection
App.get_running_app().root.widget_1.ids.txt_input1.text = str(rv.data[index].get("text"))
AttributeError: 'ScreenManager' object has no attribute 'widget_1'
Process finished with exit code 1
【问题讨论】：
【参考方案1】：您已从上一个问题更改了您的应用程序的结构。您的应用现在使用ScreenManager。所以访问TextInput 的代码必须改变以解决这个问题：
App.get_running_app().root.get_screen('body_screen').widget_1.ids.txt_input1.text = str(rv.data[index].get("text"))
【讨论】：
谢谢先生。有效。我只从正在运行的应用程序访问文本输入。但在新结构屏幕中是正在运行的应用程序的子级。所以我也不得不提到屏幕......对吗？ 先生，很抱歉再次打扰您。但我发布了新问题。可能这是我对这个项目的最后一个问题。这里是link 请回答问题以上是关于如何在另一个文本输入中获取选定的文本。出现错误“'ScreenManager' 对象没有属性 'widget_1'”的主要内容，如果未能解决你的问题，请参考以下文章
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