我正在尝试做一个非常简单的 GUI,当文件被拖放到应用程序上时,它可以更新文本标签。
到目前为止,我已经能够识别文件何时被删除并在控制台上打印一条消息。不幸的是,现在我一直在尝试在文件被删除时将标签(带有消息“Linkin Park”)更新为“三天宽限期”,但我还没有做到。
有人可以帮我解决我的问题吗?
main.py
#Se importan archivos necesarios de Kivy
from kivy.app import App
from kivy.config import Config
from kivy.uix.label import Label
from kivy.uix.widget import Widget
from kivy.uix.button import Button
from kivy.uix.floatlayout import FloatLayout
from kivy.core.window import Window
from kivy.properties import StringProperty
import random
class MainLayout(FloatLayout):
artistName = StringProperty()
def __init__(self, **kwargs):
super(MainLayout, self).__init__(**kwargs)
self.artistName = "Linkin Park"
def _on_file_drop(self):
self.artistName = "Three Day Grace"
print "File Dropped"
class MainApp(App):
def build(self):
self.title = "Shantazam"
Window.bind(on_dropfile=self._on_file_drop)
Window.size = (400,700)
return MainLayout()
def _on_file_drop(self, window, file_path):
file_path = file_path.split("\\")
fileToOpen = file_path[-2]+"\\"+file_path[-1]
print(enter code herefileToOpen)
MainLayout()._on_file_drop()
return
if __name__ == '__main__':
MainApp().run()
MainApp.kv
#:import utils kivy.utils
<MainLayout>:
canvas:
Color:
rgb: utils.get_color_from_hex('#0088ff')
Rectangle:
pos: 0,0
size: self.size
Label:
text: 'Shantazam'
font_size: 72
markup: True
shorten: True
ellipsis_options: {'color':(1,0.5,0.5,1),'underline':True}
size_hint: (1, 0.17)
pos_hint: {'x': 0 , 'y' : 0.7}
Label:
id: label1
text: root.artistName
最佳答案
您只需要对 MainLayout
的引用,以便可以访问 artistName
。如果您将 App
调整为:
class MainApp(App):
def build(self):
self.title = "Shantazam"
Window.bind(on_dropfile=self._on_file_drop)
Window.size = (400,700)
self.mainLayout = MainLayout()
return self.mainLayout
def _on_file_drop(self, window, file_path):
self.mainLayout.artistName = 'Three Day Grace'
我认为它会起作用。
关于python - 基维,Python : Update Label on_file_drop,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/53768087/