当我从文件中向kivy列表视图listitemlabel添加项目时，标签的间距似乎与新添加的内容重叠，并且我不确定从哪个部分开始。如果列表在开始时为空白并添加了新添加内容，则标签之间的间距不会重叠，如果我的_reset_spopulate出现问题，则无法确定如何修复。
from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput
from kivy.adapters.simplelistadapter import SimpleListAdapter
from kivy.uix.listview import ListView, ListItemButton, ListItemLabel
class Controller(GridLayout):
data = ['0','1','2']
test_list=[]
data0 = ['hello','2','3','2']
data1 = ['world','e','r','young']
data2 = ['1']
all_list = []
all_list.append(data0)
all_list.append(data1)
all_list.append(data2)
info_data = []
list_x = 0
def __init__(self, **kwargs):
super(Controller,self).__init__(**kwargs)
self.x = 0
self.my_list.adapter.bind(on_selection_change = self.selection_change)
self.my_list.adapter.cls.deselected_color = (1,1,1,1)
self.my_list.adapter.cls.selected_color = (1,0,1,1)
def repopulate(self):
if(hasattr(self.my_info, '_reset_spopulate')):
self.my_info._reset_spopulate()
def on_load_files(self):
pass
def on_enter(self):
self.all_list[self.list_x].append(self.my_in.text)
self.my_info.adapter.data.append(self.my_in.text)
self.repopulate()
def selection_change(self,adapter,*args):
if len(adapter.selection)!=0:
self.list_x=int(adapter.selection[0].text[0])
#for x in xrange(0,len(self.all_list[self.list_x])):
self.my_info.adapter.data = self.all_list[self.list_x]
#self.my_info.adapter.data.append(self.all_list[self.list_x][x])
self.repopulate()
def load_test(self):
with open('./data0.txt','r+') as d0:
for line in d0.readlines():
try:
self.data0.append(line)
except ValueError:
pass
for x in xrange(0,len(self.data0)):
self.data0 = [i.strip('\r\n') for i in self.data0]
def load_files(self):
with open('./data0.txt','r+') as d0:
for line in d0.readlines():
try:
self.test_list.append(line)
except ValueError:
pass
for x in xrange(0,len(self.test_list)):
self.test_list=[i.strip('\n') for i in self.test_list]
self.data0 = self.test_list
self.all_list.append(self.data0)
with open('./data1.txt','r+') as d0:
for line in d0.readlines():
try:
self.test_list.append(line)
except ValueError:
pass
for x in xrange(0,len(self.test_list)):
self.test_list=[i.strip('\n') for i in self.test_list]
self.data1 = self.test_list
self.all_list.append(self.data1)
with open('./data2.txt','r+') as d2:
for line in d2.readlines():
try:
self.test_list.append(line)
except ValueError:
pass
for x in xrange(0,len(self.test_list)):
self.test_list=[i.strip('\n') for i in self.test_list]
self.data2 = self.test_list
self.all_list.append(self.data2)
def write_files(self):
with open('./data0.txt','w+') as d0:
d0.seek(0)
for x in xrange(0,len(self.data0)):
d0.write(self.data0[x]+'\n')
d0.seek(0)
for x in xrange(0,len(self.data0)):
print d0.readline().strip('\n')
with open('./data1.txt','w+') as d0:
d0.seek(0)
for x in xrange(0,len(self.data1)):
d0.write(self.data1[x]+'\n')
d0.seek(0)
for x in xrange(0,len(self.data1)):
print d0.readline().strip('\n')
with open('./data2.txt','w+') as d2:
d2.seek(0)
for x in xrange(0,len(self.data2)):
d2.write(self.data2[x]+'\n')
d2.seek(0)
for x in xrange(0,len(self.data2)):
print d2.readline().strip('\n')
def on_write_files(self):
pass#self.write_files()
class NameApp(App):
def build(self):
controller = Controller()
controller.load_test()
return controller
if __name__ == '__main__':
NameApp().run()
这是name.kv
#:kivy 1.4.0
#:import label kivy.uix.label
#:import sla kivy.adapters.simplelistadapter
#:import la kivy.adapters.listadapter
#:import lib kivy.uix.listview
<Label>:
text_size: self.size
halign: 'left'
valign: 'middle'
<Controller>:
my_in:my_in_id
my_info:my_info_id
my_list:my_list_id
cols:1
FloatLayout:
Button:
text:'on_load_files()'
size_hint:None,None
size:100,30
pos:100,100
on_press:root.on_load_files()
ListView:
id:my_list_id
size_hint:.2,.6
size:00,400
pos_hint:{'x':.2,'y':.2}
pos:200,200
adapter:
la.ListAdapter(
data=root.data,
cls=lib.ListItemButton,
selection_mode='single',
allow_empty_selection=True
)
ListView:
id:my_info_id
size_hint: .4,.6
pos:400,200
adapter:
la.ListAdapter(
data=root.info_data,
cls=lib.ListItemLabel,
selection_mode='single',
allow_empty_selection=True)
Button:
size_hint:None,None
size:100,30
pos:0,0
text:'enter/clear'
on_press:root.on_write_files()
TextInput:
size_hint:.8,None
size:400,30
pos:100,0
background_color:0.2,0.2,0.2,1
foreground_color:1,1,1,1
id:my_in_id
multiline:False
text:'enter new item'
on_text_validate:root.on_enter()
答案 0 :(得分：1)
使用args_converter并将列表中项目的高度设置为不切断标签或行是解决此问题的方法
args_converter = lambda row_index, x: {'text': '{0:^20}'.format(x), 'size_hint_y': None, 'height': 55},