我有一个功能,可以为列表中的每个项目添加自定义窗口小部件。 标签(自定义窗口小部件的子级)应显示添加的项目作为文本(watchlist_names中的项目)。在当前状态下,每个要添加的自定义窗口小部件都显示相同的文本。显而易见,所有这些都引用相同的变量。我尚未找到将自定义小部件标签文本引用到列表项的方法。
意味着添加的第一个小部件带有标签文本:“ Senet” 添加的第二个小部件具有标签文本:“ Wirecard” 等等...
# the variables and lists
watchlist_stock_ticker = StringProperty()
watchlist_stock_name = StringProperty()
watchlist_numbers = [0, 1]
watchlist_tickers = ['YSN.DE', 'WDI.DE']
# list with the variables to be displayed
watchlist_names = ['Secunet', 'Wirecard']
# the function to add the custom widgets
def load_stock_watchlist(self, layout):
layout.clear_widgets()
for n in self.watchlist_numbers:
self.watchlist_stock_ticker = self.watchlist_tickers[n]
self.watchlist_stock_name = self.watchlist_names[n]
layout.add_widget(StockWatchlist())
以及自定义小部件(FloatLayout)的一部分,包括标签:
<StockWatchlist>
size_hint: None, None
height: app.root.height * .13
width: app.root.width -10
Button:
pos: root.pos
on_release:
app.go_screen(4)
app.load_popup2()
app.update_current(watchlistticker.text, watchlistcompany.text)
BoxLayout:
orientation: "vertical"
pos: root.pos
size_hint: None, None
height: app.root.height * .13
width: app.root.width -10
# this is the label that should have its text matching
# with the list item it was added for
Label:
text: app.watchlist_stock_name
答案 0 :(得分:0)
Python脚本和kv文件需要以下增强功能。
watchlist_stock_name
中声明一个类属性watchlist_stock_ticker
和class StockWatchList()
StockWatchList
对象时,将股票名称和股票代码作为参数传递。from kivy.properties import StringProperty
...
class StockWatchList(FloatLayout):
watchlist_stock_ticker = StringProperty('') # initialize to empty string
watchlist_stock_name = StringProperty('') # initialize to empty string
class class-name(...):
# the variables and lists
self.watchlist_numbers = [0, 1]
self.watchlist_tickers = ['YSN.DE', 'WDI.DE']
# list with the variables to be displayed
self.watchlist_names = ['Secunet', 'Wirecard']
# the function to add the custom widgets
def load_stock_watchlist(self, layout):
layout.clear_widgets()
for n in self.watchlist_numbers:
layout.add_widget(StockWatchlist(watchlist_stock_ticker=self.watchlist_tickers[n], watchlist_stock_name=self.watchlist_names[n]))
app.watchlist_stock_name
替换为root.watchlist_stock_name
app.watchlist_stock_ticker
替换为root.watchlist_stock_ticker
<StockWatchlist>:
size_hint: None, None
height: app.root.height * .13
width: app.root.width -10
Button:
pos: root.pos
on_release:
app.go_screen(4)
app.load_popup2()
app.update_current(watchlistticker.text, watchlistcompany.text)
BoxLayout:
orientation: "vertical"
pos: root.pos
size_hint: None, None
height: app.root.height * .13
width: app.root.width -10
Label:
text: root.watchlist_stock_name