问题描述
您好，ThreeLineAvatarIconListItem 的设置有问题。
我会告诉你
我该如何解决这个问题？
列表未定义，应用程序将连接到服务器并获取列表，连接后，对于我从服务器收到的列表中的所有项目，我向 MDList 添加了一个小部件，这工作正常，但 scondary_text 最终位于右侧容器上的小部件下方，代码如下：
class ListItem(ThreeLineAvatarIconListItem):
def on_size(self,ins,value):
for child in self.children:
for childs in child.children:
try:
if str(childs.icon) == 'plus':
plus = childs.width
if str(childs.icon) == 'minus':
minus = childs.width
self.ids._right_container.width = (minus + plus)
self.ids._right_container.x = (minus + plus)
except:
continue
class LeftLabel(ILeftBodyTouch,MDLabel):
disabled = True
class RightPlusWidget(IconRightWidget):
def on_release(self):
global dict_ordine
n = 0
for tree in ((self.parent).parent).children:
for label in tree.children:
n = n + 1
if n == 4:
prezzo = float(label.text[:-4])
if n == 6:
dict_ordine[label.text] = {}
dict_ordine[label.text]['quantita'] = quantita
dict_ordine[label.text]['prezzo'] = prezzo
if label.disabled == True:
label.text = str(int(label.text) + 1)
quantita = str(label.text)
class RightMinusWidget(IconRightWidget):
def on_release(self):
global dict_ordine
n = 0
for tree in ((self.parent).parent).children:
for label in tree.children:
n = n + 1
if n == 6:
if quantita == '0':
try:
del dict_ordine[label.text]
except:
continue
else:
dict_ordine[label.text]['quantita'] = quantita
if label.disabled == True:
if int(label.text) <= 0:
label.text = '0'
quantita = str(label.text)
else:
label.text = str(int(label.text) - 1)
quantita = str(label.text)
这些是要添加到 MDList 的小部件类。 而以下代码用于将小部件添加到 MDList 并且所有代码都有效。
def add_widget(dt,widget,wid,*largs):
widget.add_widget(wid)
def add_widget_f(dt,indez,*largs):
widget.add_widget(wid,index=indez)
def init_menu(self,menu,refresh):
_ = 0
if refresh == 1:
while len(LST_BEVANDE.children) != 0:
for child in LST_BEVANDE.children:
LST_BEVANDE.remove_widget(child)
while len(LST_CIBO.children) != 0:
for child in LST_CIBO.children:
LST_CIBO.remove_widget(child)
while len(LST_BAR.children) != 0:
for child in LST_BAR.children:
LST_BAR.remove_widget(child)
_ = 1
else:
_ = 1
if _ == 1:
dict_menu = menu.split('|')
menu1 = eval(dict_menu[0])
menu2 = eval(dict_menu[1])
menu3 = eval(dict_menu[2])
NoI = 0
for child in menu1:
if str(menu1[child]['icon']) == 'cart-off':
widget = ListItem()
widget.text = str(menu1[child]['titolo'])
widget.secondary_text = str(menu1[child]['desc'])
widget.tertiary_text = str(menu1[child]['prezzo'])
left_w = LeftLabel()
left_w.text = '0'
right_w = IconRightWidget()
right_w.icon = 'food-off'
Clock.schedule_once(partial(self.add_widget,left_w),0.01)
Clock.schedule_once(partial(self.add_widget,right_w),0.02)
Clock.schedule_once(partial(self.add_widget_f,LST_BEVANDE,NoI),0.03)
NoI = NoI + 1
else:
widget = ListItem()
widget.text = str(menu1[child]['titolo'])
widget.secondary_text = str(menu1[child]['desc'])
widget.tertiary_text = str(menu1[child]['prezzo'])
left_w = LeftLabel()
left_w.text = '0'
right_wm = RightMinusWidget()
right_wm.icon = 'minus'
right_wp = RightPlusWidget()
right_wp.icon = 'plus'
Clock.schedule_once(partial(self.add_widget,right_wm),0.02)
Clock.schedule_once(partial(self.add_widget,right_wp),0.03)
Clock.schedule_once(partial(self.add_widget_f,0.04)
NoI = NoI + 1
NoI = 0
for child in menu2:
if str(menu2[child]['icon']) == 'cart-off':
widget = ListItem()
widget.text = str(menu2[child]['titolo'])
widget.secondary_text = str(menu2[child]['desc'])
widget.tertiary_text = str(menu2[child]['prezzo'])
left_w = LeftLabel()
left_w.text = '0'
right_w = IconRightWidget()
right_w.icon = 'food-off'
Clock.schedule_once(partial(self.add_widget,LST_CIBO,0.03)
NoI = NoI + 1
else:
widget = ListItem()
widget.text = str(menu2[child]['titolo'])
widget.secondary_text = str(menu2[child]['desc'])
widget.tertiary_text = str(menu2[child]['prezzo'])
left_w = LeftLabel()
left_w.text = '0'
right_wm = RightMinusWidget()
right_wm.icon = 'minus'
right_wp = RightPlusWidget()
right_wp.icon = 'plus'
Clock.schedule_once(partial(self.add_widget,0.04)
NoI = NoI + 1
NoI = 0
for child in menu3:
if str(menu3[child]['icon']) == 'cart-off':
widget = ListItem()
widget.text = str(menu3[child]['titolo'])
widget.secondary_text = str(menu3[child]['desc'])
widget.tertiary_text = str(menu3[child]['prezzo'])
left_w = LeftLabel()
left_w.text = '0'
right_w = IconRightWidget()
right_w.icon = 'food-off'
Clock.schedule_once(partial(self.add_widget,LST_BAR,0.03)
NoI = NoI + 1
else:
widget = ListItem()
widget.text = str(menu3[child]['titolo'])
widget.secondary_text = str(menu3[child]['desc'])
widget.tertiary_text = str(menu3[child]['prezzo'])
left_w = LeftLabel()
left_w.text = '0'
right_wm = RightMinusWidget()
right_wm.icon = 'minus'
right_wp = RightPlusWidget()
right_wp.icon = 'plus'
Clock.schedule_once(partial(self.add_widget,0.04)
NoI = NoI + 1
变量“menu”是我从服务器收到的字典，例如：
{'0': {'titolo': 'campari & prosecco','desc': 'campari soda,prosecco,arancia','prezzo': '2.50 EUR','icon': 'cart'}}|{' 0': {'titolo': 'caffe','desc': 'caffe espresso mokambo','prezzo': '0.90 EUR','icon': 'cart-off'}}|{'0': {'titolo': 'acqua','desc': 'acqua liscia san benedetto 1lt','prezzo': '1.00 EUR','icon': 'cart'}}
解决方法
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