[英]Kivy Label not updating
所以我是 kivy 的新手,我構建了這個,但我不明白為什么它不會更新。 打印時,列表會更新,但標簽本身不會更新。
主文件
class MasukTol(Screen):
ubahintsaldo = [str(int) for int in nyimpen.saldoawal]
textsaldo = ''.join(ubahintsaldo)
n = 0
def masukkansaldo(self):
self.instruksimasuk = "Silakan masukan \n saldo Anda!"
def updatesaldo(self):
self.ubahintsaldo = [str(int) for int in nyimpen.saldoawal]
self.ids.textsaldo = ''.join(str(nyimpen.saldoawal))
return self.ids.textsaldo, self.ubahintsaldo
def pencetsatu(self):
if self.n < 6:
nyimpen.saldoawal[self.n]=1
self.n +=1
self.updatesaldo()
print(nyimpen.saldoawal)
print(self.n)
return nyimpen.saldoawal, self.n
kv文件
<MasukTol>:
Label:
id: Saldo
text: root.textsaldo
# Nomor 1
Button:
background_normal: "photos/atm_1.png"
background_down: "photos/atm_down_1.png"
allow_stretch: True
keep_ratio: False
size_hint: 0.11, 0.141
pos_hint:{"x":root.kiri_atm, "y":root.atas_atm}
on_release:
root.pencetsatu()
a我制作了一個單獨的python文件來跟蹤每一件事。
nyimpen.py
saldoawal = [0,0,0,0,0,0]
阿爾弗雷達
我稍微改變了你的代碼:
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import Screen
from kivy.properties import ListProperty, StringProperty, NumericProperty
class nyimpen:
saldoawal = [0, 0, 0, 0, 0, 0]
class MasukTol(Screen):
counter = NumericProperty(0)
instruksimasuk = StringProperty()
ubahintsaldo = StringProperty()
saldo_value = StringProperty()
def __init__(self):
super(MasukTol, self).__init__()
self.ubahintsaldo = str([str(int) for int in nyimpen.saldoawal])
self.saldo_value = ''.join(self.ubahintsaldo)
def masukkansaldo(self):
self.instruksimasuk = "Silakan masukan \n saldo Anda!"
def updatesaldo(self):
self.ubahintsaldo = str([str(int) for int in nyimpen.saldoawal])
self.saldo_value = ''.join(str(nyimpen.saldoawal))
return self.saldo_value, self.ubahintsaldo
def pencetsatu(self):
if self.counter < 6:
nyimpen.saldoawal[self.counter] = 1
self.counter += 1
self.updatesaldo()
print(nyimpen.saldoawal)
print(self.counter)
return nyimpen.saldoawal, self.counter
def on_counter(self, *args):
print('counter', self.counter)
def on_ubahintsaldo(self, *args):
print('ubahintsaldo', self.ubahintsaldo)
def on_saldo_value(self, *args):
print('saldo_value', self.saldo_value)
class AlfredaApp(App):
def build(self):
Builder.load_file('./alfreda.kv')
return MasukTol()
pass
if __name__ == '__main__':
AlfredaApp().run()
pass
<MasukTol>:
id: masuk_tol
Label:
id: Saldo
text: root.saldo_value
# Nomor 1
Button:
# background_normal: "photos/atm_1.png"
# background_down: "photos/atm_down_1.png"
text: str(root.counter)
allow_stretch: True
keep_ratio: False
size_hint: 0.11, 0.141
# pos_hint:{"x":root.kiri_atm, "y":root.atas_atm}
on_release:
root.pencetsatu()
正如 inclement 所提到的:感謝 kivy StringProperty 代碼現在可以滿足您的預期。 https://kivy.org/doc/stable/api-kivy.properties.html
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