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我在彈出的ColorPicker中遇到q問題。 按'選擇並關閉'後,我需要顏色值(不帶#的十六進制代碼)返回,但我只打印了兩次白色顏色值。運行代碼後運行 。Kivy不會返回ColorPicker的顏色值
我的代碼(Python的3.6,kivy 1.9.1):
from kivy.lang import Builder
from kivy.app import App
from kivy.uix.popup import Popup
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.colorpicker import ColorPicker
Builder.load_string('''
<PaintWindow>:
orientation: 'vertical'
<PopupColor>:
title: 'Pick a Color'
size_hint: 1.0, 0.6
id: popupcolor
BoxLayout:
orientation: 'vertical'
ColorPicker:
size_hint: 1.0, 1.0
Button:
text: 'PICK AND CLOSE'
color: 0.435, 0.725, 0.56, 1
background_color: 0, 0.26, 0.27, 1
size_hint: 1.0, 0.2
on_press: popupcolor.on_press_dismiss()
''')
class PaintWindow(BoxLayout):
pass
class PopupColor(Popup):
def on_press_dismiss(self, *args):
self.dismiss()
return False
class PopupRun(App):
def build(self):
main_window = PaintWindow()
popup = PopupColor()
popup_color = ColorPicker()
popup.open()
def on_color(instance, value):
print("RGBA = ", str(value))
print("HSV = ", str(instance.hsv))
print("HEX = ", str(instance.hex_color))
hex_color = str(instance.hex_color)
# Return hex color code without '#'
return hex_color[1:]
# Return valye after change color in ColorPicker
popup_color.bind(color=on_color)
return main_window
PopupRun().run()