I'm trying to create a simple login page for this app using Kivy.
I'm new to this, and I'm wondering how I can connect the Email TextInput to a variable ( email_catch
) in my python code, similar to a normal.get() function.
Python Code
from kivy.app import App
from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.gridlayout import GridLayout
from kivy.uix.label import Label
from kivy.uix.image import Image
from kivy.uix.button import Button
from kivy.uix.textinput import TextInput
from kivy.uix.widget import Widget
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.properties import ObjectProperty, StringProperty
class Login_Window(Screen):
def verify(self):
email_catch = self.root.ids.email.text
print(email_catch)
class MyApp(App):
def build(self):
return Login_Window()
if __name__ == "__main__":
MyApp().run()
.KV File
#:kivy 2.0.0
<Login_Window>:
GridLayout:
cols:1
size: root.width, root.height
GridLayout:
cols:2
Label:
text: 'Email'
TextInput:
multiline: False
id: email
Button:
text: 'Log In'
on_press: root.verify()
Since you are calling root
in verify
method of Login_Window
class (where it ( root
) hasn't been defined yet) and not in the build
method of the App
class you are supposed to get an AttributeError
.
In order to access an id
within that class you should use self.ids
. So the change you need:
def verify(self):
email_catch = self.ids.email.text
print(email_catch)
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.