import kivy
kivy.require('1.9.0') # replace with your current kivy version !
import sqlite3 as lite
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import BooleanProperty, ListProperty, ObjectProperty,NumericProperty
from kivy.lang import Builder
from kivy.uix.dropdown import DropDown
from kivy.uix.recycleview.views import RecycleDataViewBehavior
from kivy.uix.button import Button
from kivy.uix.recyclegridlayout import RecycleGridLayout
from kivy.uix.behaviors import FocusBehavior
from kivy.uix.recycleview.layout import LayoutSelectionBehavior
from kivy.uix.popup import Popup
from kivy.core.window import Window
Window.maximize()
from kivy.clock import Clock
from kivy.uix.treeview import TreeView, TreeViewLabel, TreeViewNode
class EditStatePopup(Popup):
col_data = ListProperty(["?", "?", "?"])
index = NumericProperty(0)
def __init__(self, obj, **kwargs):
super(EditStatePopup, self).__init__(**kwargs)
self.index = obj.index
self.col_data[0] = obj.rv_data[self.index]["StateId"]
self.col_data[1] = obj.rv_data[self.index]["StateName"]
self.col_data[2] = obj.rv_data[self.index]["StateCode"]
def package_changes(self, stateName, stateCode):
self.col_data[1] = stateName
self.col_data[2] = stateCode
class SelectableRecycleGridLayout(FocusBehavior, LayoutSelectionBehavior,
RecycleGridLayout):
''' Adds selection and focus behaviour to the view. '''
class SelectableButton(RecycleDataViewBehavior, Button):
''' Add selection support to the Button '''
index = None
selected = BooleanProperty(False)
selectable = BooleanProperty(True)
rv_data = ObjectProperty(None)
start_point = NumericProperty(0)
def __init__(self, **kwargs):
super(SelectableButton, self).__init__(**kwargs)
Clock.schedule_interval(self.update, .0005)
def update(self, *args):
self.text = self.rv_data[self.index][self.key]
def refresh_view_attrs(self, rv, index, data):
''' Catch and handle the view changes '''
self.index = index
return super(SelectableButton, self).refresh_view_attrs(rv, index, data)
def on_touch_down(self, touch):
''' Add selection on touch down '''
if super(SelectableButton, self).on_touch_down(touch):
return True
if self.collide_point(*touch.pos) and self.selectable:
return self.parent.select_with_touch(self.index, touch)
def apply_selection(self, rv, index, is_selected):
self.selected = is_selected
self.rv_data = rv.data
def on_press(self):
popup = EditStatePopup(self)
popup.open()
class RV(BoxLayout):
data_items = ListProperty([])
col1 = ListProperty()
col2 = ListProperty()
col3 = ListProperty()
def __init__(self, **kwargs):
super(RV, self).__init__(**kwargs)
self.get_states()
def update(self):
self.col1 = [{'StateId': str(x[0]), 'StateName': x[1], 'StateCode': str(x[2]), 'key': 'StateId'} for x in self.data_items]
self.col2 = [{'StateId': str(x[0]), 'StateName': x[1], 'StateCode': str(x[2]), 'key': 'StateName'} for x in self.data_items]
self.col3 = [{'StateId': str(x[0]), 'StateName': x[1], 'StateCode': str(x[2]), 'key': 'StateCode'} for x in self.data_items]
def get_states(self):
rows = [(1, 'Andaman and Nicobar Islands ', 35), (2, 'Andhra Pradesh', 28), (3, 'Arunachal Pradesh', 12), (4, 'Assam', 18), (5, 'Bihar', 10), (6, 'Chandigarh', 4), (7, 'Chattisgarh', 22)]
i = 0
for row in rows:
self.data_items.append([row[0], row[1], row[2], i])
i += 1
print(self.data_items)
self.update()
def populate_tree_view(tree_view, parent, node):
if parent is None:
tree_node = tree_view.add_node(TreeViewLabel(text=node['node_id'],
is_open=True))
else:
tree_node = tree_view.add_node(TreeViewLabel(text=node['node_id'],
is_open=True), parent)
for child_node in node['children']:
populate_tree_view(tree_view, tree_node, child_node)
rows = [(1, 'Andaman and Nicobar Islands ', 35), (2, 'Andhra Pradesh', 28), (3, 'Arunachal Pradesh', 12), (4, 'Assam', 18), (5, 'Bihar', 10), (6, 'Chandigarh', 4), (7, 'Chattisgarh', 22)]
tree = []
for r in rows:
tree.append({'node_id': r[1], 'children': []})
class TreeviewGroup(Popup):
treeview = ObjectProperty(None)
tv = ObjectProperty(None)
h = NumericProperty(0)
#ti = ObjectProperty()
def __init__(self, **kwargs):
super(TreeviewGroup, self).__init__(**kwargs)
self.tv = TreeView(root_options=dict(text=""),
hide_root=False,
indent_level=4)
for branch in tree:
populate_tree_view(self.tv, None, branch)
#self.remove_widgets()
self.treeview.add_widget(self.tv)
Clock.schedule_once(self.update, 1)
def remove_widgets(self):
for child in [child for child in self.treeview.children]:
self.treeview.remove_widget(child)
def update(self, *args):
self.h = len([child for child in self.tv.children]) * 24
class EditCityPopup(Popup):
col_data = ListProperty(["?", "?", "?", "?", "?"])
index = NumericProperty(0)
popup = ObjectProperty(None)
def __init__(self, obj, **kwargs):
super(EditCityPopup, self).__init__(**kwargs)
self.index = obj.index
self.col_data[0] = obj.rv_data_city[self.index]["cityId"]
self.col_data[1] = obj.rv_data_city[self.index]["stateId"]
self.col_data[2] = obj.rv_data_city[self.index]["cityName"]
self.col_data[3] = obj.rv_data_city[self.index]["shortName"]
self.col_data[4] = obj.rv_data_city[self.index]["pinCode"]
def package_changes(self, stateId, cityName, shortName, pinCode):
self.col_data[1] = stateId
self.col_data[2] = cityName
self.col_data[3] = shortName
self.col_data[4] = pinCode
def display_states_treeview(self, instance):
if len(instance.text) > 0:
if self.popup is None:
self.popup = TreeviewGroup()
self.popup.open()
class SelectableButtonCity(RecycleDataViewBehavior, Button):
''' Add selection support to the Button '''
index = None
selected = BooleanProperty(False)
selectable = BooleanProperty(True)
rv_data_city = ObjectProperty(None)
start_point = NumericProperty(0)
def __init__(self, **kwargs):
super(SelectableButtonCity, self).__init__(**kwargs)
Clock.schedule_interval(self.update, .0005)
def update(self, *args):
self.text = self.rv_data_city[self.index][self.key]
def refresh_view_attrs(self, rv, index, data):
''' Catch and handle the view changes '''
self.index = index
return super(SelectableButtonCity, self).refresh_view_attrs(rv, index, data)
def on_touch_down(self, touch):
''' Add selection on touch down '''
if super(SelectableButtonCity, self).on_touch_down(touch):
return True
if self.collide_point(*touch.pos) and self.selectable:
return self.parent.select_with_touch(self.index, touch)
def apply_selection(self, rv, index, is_selected):
''' Respond to the selection of items in the view. '''
self.selected = is_selected
self.rv_data_city = rv.data
def on_press(self):
popup = EditCityPopup(self)
popup.open()
class RVCITY(BoxLayout):
data_items_city = ListProperty([])
col1 = ListProperty()
col2 = ListProperty()
col3 = ListProperty()
col4 = ListProperty()
col5 = ListProperty()
def __init__(self, **kwargs):
super(RVCITY, self).__init__(**kwargs)
self.get_cities()
def update(self):
self.col1 = [{'cityId': str(x[0]), 'stateId': str(x[1]), 'cityName': str(x[2]), 'shortName': str(x[3]), 'pinCode': str(x[4]), 'key': 'cityId'} for x in self.data_items_city]
self.col2 = [{'cityId': str(x[0]), 'stateId': str(x[1]), 'cityName': str(x[2]), 'shortName': str(x[3]), 'pinCode': str(x[4]), 'key': 'stateId'} for x in self.data_items_city]
self.col3 = [{'cityId': str(x[0]), 'stateId': str(x[1]), 'cityName': str(x[2]), 'shortName': str(x[3]), 'pinCode': str(x[4]), 'key': 'cityName'} for x in self.data_items_city]
self.col4 = [{'cityId': str(x[0]), 'stateId': str(x[1]), 'cityName': str(x[2]), 'shortName': str(x[3]), 'pinCode': str(x[4]), 'key': 'shortName'} for x in self.data_items_city]
self.col5 = [{'cityId': str(x[0]), 'stateId': str(x[1]), 'cityName': str(x[2]), 'shortName': str(x[3]), 'pinCode': str(x[4]), 'key': 'pinCode'} for x in self.data_items_city]
def get_cities(self):
rows = [(1, 'Bihar', 'Patna', 'Patna', 801108), (2, 'Andaman and Nicobar Islands ', 'Port Blair', 'PB', 744101), (3, 'Assam', 'Guwahati', 'Guwahati', 781001), (4, 'Assam', 'Nagaon', 'Nagaon', 782120), (5, 'Chandigarh', 'Amritsar', 'Amritsar', 143502), (6, 'Andhra Pradesh', 'Visakhapatnam', 'VP', 531219), (7, 'Chattisgarh', 'Bilaspur', 'Bilaspur', 495001)]
i = 0
for row in rows:
self.data_items_city.append([row[0], row[1], row[2], row[3], row[4], i])
i += 1
print(self.data_items_city)
self.update()
class EditAreaPopup(Popup):
col_data = ListProperty(["?", "?", "?"])
index = NumericProperty(0)
popup = ObjectProperty(None)
def __init__(self, obj, **kwargs):
super(EditAreaPopup, self).__init__(**kwargs)
self.index = obj.index
self.col_data[0] = obj.rv_data_area[self.index]["areaId"]
self.col_data[1] = obj.rv_data_area[self.index]["cityId"]
self.col_data[2] = obj.rv_data_area[self.index]["areaName"]
def package_changes(self, stateId, cityName):
self.col_data[1] = stateId
self.col_data[2] = cityName
def display_city_treeview(self, instance):
if len(instance.text) > 0:
if self.popup is None:
self.popup = TreeviewGroup()
#self.popup.filter(instance.text)
self.popup.open()
class SelectableButtonArea(RecycleDataViewBehavior, Button):
''' Add selection support to the Button '''
index = None
selected = BooleanProperty(False)
selectable = BooleanProperty(True)
rv_data_area = ObjectProperty(None)
start_point = NumericProperty(0)
def __init__(self, **kwargs):
super(SelectableButtonArea, self).__init__(**kwargs)
Clock.schedule_interval(self.update, .0005)
def update(self, *args):
self.text = self.rv_data_area[self.index][self.key]
def refresh_view_attrs(self, rv, index, data):
''' Catch and handle the view changes '''
self.index = index
return super(SelectableButtonArea, self).refresh_view_attrs(rv, index, data)
def on_touch_down(self, touch):
''' Add selection on touch down '''
if super(SelectableButtonArea, self).on_touch_down(touch):
return True
if self.collide_point(*touch.pos) and self.selectable:
return self.parent.select_with_touch(self.index, touch)
def apply_selection(self, rv, index, is_selected):
''' Respond to the selection of items in the view. '''
self.selected = is_selected
self.rv_data_area = rv.data
#print("selection changed to {0}".format(rv.data[1]))
def on_press(self):
popup = EditAreaPopup(self)
popup.open()
class RVAREA(BoxLayout):
data_items_area = ListProperty([])
col1 = ListProperty()
col2 = ListProperty()
col3 = ListProperty()
def __init__(self, **kwargs):
super(RVAREA, self).__init__(**kwargs)
self.get_areas()
def update(self):
self.col1 = [{'areaId': str(x[0]), 'cityId': str(x[1]), 'areaName': str(x[2]), 'key': 'areaId'} for x in self.data_items_area]
self.col2 = [{'areaId': str(x[0]), 'cityId': str(x[1]), 'areaName': str(x[2]), 'key': 'cityId'} for x in self.data_items_area]
self.col3 = [{'areaId': str(x[0]), 'cityId': str(x[1]), 'areaName': str(x[2]), 'key': 'areaName'} for x in self.data_items_area]
def get_areas(self):
rows = [(1, 'Amritsar', 'area1')]
i = 0
for row in rows:
self.data_items_area.append([row[0], row[1], row[2], i])
i += 1
print(self.data_items_area)
self.update()
class CustDrop(DropDown):
def __init__(self, **kwargs):
super(CustDrop, self).__init__(**kwargs)
self.select('')
class MainMenu(BoxLayout):
states_cities_or_areas = ObjectProperty()
rv = ObjectProperty(None)
dropdown = ObjectProperty(None)
#Define City Variable
rvcity = ObjectProperty(None)
#Area City Variable
rvarea = ObjectProperty(None)
def display_states(self):
self.dropdown.dismiss()
self.remove_widgets()
self.rv = RV()
self.states_cities_or_areas.add_widget(self.rv)
def display_cities(self):
self.dropdown.dismiss()
self.remove_widgets()
self.rvcity = RVCITY()
self.states_cities_or_areas.add_widget(self.rvcity)
def display_areas(self):
self.dropdown.dismiss()
self.remove_widgets()
self.rvarea = RVAREA()
self.states_cities_or_areas.add_widget(self.rvarea)
def remove_widgets(self):
self.states_cities_or_areas.clear_widgets()
class FactApp(App):
title = "test"
def build(self):
self.root = Builder.load_file('test.kv')
return MainMenu()
if __name__ == '__main__':
FactApp().run()
#:kivy 1.10.0
#:import CoreImage kivy.core.image.Image
#:import os os
<EditStatePopup>:
title: "Update State"
size_hint: None, None
size: 500, 200
auto_dismiss: False
BoxLayout:
orientation: "vertical"
GridLayout:
cols: 2
backgroun_color: 0, 0.517, 0.705, 1
spacing: 10, 10
Label:
text: "Id"
Label:
id: stateId
text: root.col_data[0]
Label:
text: "State Name"
TextInput:
id: stateName
text: root.col_data[1]
Label:
text: "State Code"
TextInput:
id: stateCode
text: root.col_data[2]
Button:
size_hint: 1, 1
text: "Ok"
on_release:
root.package_changes(stateName.text, stateCode.text)
app.root.update_states(root)
root.dismiss()
Button:
size_hint: 1, 1
text: "Cancel"
on_release: root.dismiss()
<TreeViewLabel>:
size_hint_y: None
height: 24
on_touch_down:
app.root.stateName.text = self.text
app.root.popup.dismiss()
<TreeviewGroup>:
id: treeview
treeview: treeview
title: "Select State"
size_hint: .3,.3
size: 800, 800
auto_dismiss: False
BoxLayout
orientation: "vertical"
ScrollView:
size_hint: 1, .9
BoxLayout:
size_hint_y: None
id: treeview
height: root.h
Button:
size_hint: 1, 0.1
text: "Close"
on_release: root.dismiss()
<SelectableButton>:
canvas.before:
Color:
rgba: (0, 0.517, 0.705, 1) if self.selected else (0, 0.517, 0.705, 1)
Rectangle:
pos: self.pos
size: self.size
<MyRV@RecycleView>:
viewclass: 'SelectableButton'
SelectableRecycleGridLayout:
cols: 1
default_size: None, dp(26)
default_size_hint: 1, None
size_hint_y: None
height: self.minimum_height
orientation: 'vertical'
multiselect: True
touch_multiselect: True
<RV>:
BoxLayout:
orientation: "vertical"
GridLayout:
size_hint: 1, None
size_hint_y: None
height: 25
cols: 3
Label:
size_hint_x: .1
text: "Id"
Label:
size_hint_x: .5
text: "State Name"
Label:
size_hint_x: .4
text: "State Code"
BoxLayout:
MyRV:
size_hint_x: .1
data: root.col1
MyRV:
size_hint_x: .5
data: root.col2
MyRV:
size_hint_x: .4
data: root.col3
<EditCityPopup>:
title: "Update State"
size_hint: None, None
size: 500, 400
auto_dismiss: False
BoxLayout:
orientation: "vertical"
GridLayout:
cols: 2
backgroun_color: 0, 0.517, 0.705, 1
spacing: 10, 10
Label:
text: "City Id"
Label:
id: cityId
text: root.col_data[0]
Label:
text: "State Id"
TextInput:
id: stateId
text: root.col_data[1]
on_focus: root.display_states_treeview(self)
Label:
text: "city Name"
TextInput:
id: cityName
text: root.col_data[2]
Label:
text: "Short Name"
TextInput:
id: shortName
text: root.col_data[3]
Label:
text: "Pin Code"
TextInput:
id: pinCode
text: root.col_data[4]
Button:
size_hint: 1, 1
text: "Ok"
on_release:
root.package_changes(stateId.text, cityName.text, shortName.text, pinCode.text)
app.root.update_cities(root)
root.dismiss()
Button:
size_hint: 1, 1
text: "Cancel"
on_release: root.dismiss()
<MyRvCity@RecycleView>:
viewclass: 'SelectableButtonCity'
SelectableRecycleGridLayout:
cols: 1
default_size: None, dp(26)
default_size_hint: 1, None
size_hint_y: None
height: self.minimum_height
orientation: 'vertical'
multiselect: True
touch_multiselect: True
<RVCITY>:
BoxLayout:
orientation: "vertical"
GridLayout:
size_hint: 1, None
size_hint_y:None
height: 25
cols: 5
Label:
size_hint_x: .1
text: "City Id"
Label:
size_hint_x: .2
text: "State Name"
Label:
size_hint_x: .3
text: "City Name"
Label:
size_hint_x: .2
text: "Short Name"
Label:
size_hint_x: .2
text: "Pin Code"
BoxLayout:
MyRvCity:
size_hint_x: .1
data: root.col1
MyRvCity:
size_hint_x: .2
data: root.col2
MyRvCity:
size_hint_x: .3
data: root.col3
MyRvCity:
size_hint_x: .2
data: root.col4
MyRvCity:
size_hint_x: .2
data: root.col5
<EditAreaPopup>:
title: "Update State"
size_hint: None, None
size: 500, 400
auto_dismiss: False
BoxLayout:
orientation: "vertical"
GridLayout:
cols: 2
backgroun_color: 0, 0.517, 0.705, 1
spacing: 10, 10
Label:
text: "City Id"
Label:
id: cityId
text: root.col_data[0]
Label:
text: "State Id"
TextInput:
id: stateId
text: root.col_data[1]
on_focus: root.display_states_treeview(self)
Label:
text: "city Name"
TextInput:
id: cityName
text: root.col_data[2]
Button:
size_hint: 1, 1
text: "Ok"
on_release:
root.package_changes(stateId.text, cityName.text, shortName.text, pinCode.text)
app.root.update_cities(root)
root.dismiss()
Button:
size_hint: 1, 1
text: "Cancel"
on_release: root.dismiss()
<MyRvArea@RecycleView>:
viewclass: 'SelectableButtonArea'
SelectableRecycleGridLayout:
cols: 1
default_size: None, dp(26)
default_size_hint: 1, None
size_hint_y: None
height: self.minimum_height
orientation: 'vertical'
multiselect: True
touch_multiselect: True
<RVAREA>:
BoxLayout:
orientation: "vertical"
GridLayout:
size_hint: 1, None
size_hint_y: None
height: 25
cols: 3
Label:
size_hint_x: .1
text: "Area Id"
Label:
size_hint_x: .5
text: "City Name"
Label:
size_hint_x: .4
text: "Area Name"
BoxLayout:
MyRvArea:
size_hint_x: .1
data: root.col1
MyRvArea:
size_hint_x: .5
data: root.col2
MyRvArea:
size_hint_x: .4
data: root.col3
<DropdownButton@Button>:
border: (0, 16, 0, 16)
text_size: self.size
valign: "middle"
padding_x: 5
size_hint_y: None
height: '30dp'
background_color: 90 , 90, 90, 90
color: 0, 0.517, 0.705, 1
<MenuButton@Button>:
text_size: self.size
valign: "middle"
padding_x: 5
size : (80,30)
size_hint : (None, None)
background_color: 90 , 90, 90, 90
background_normal: ''
color: 0, 0.517, 0.705, 1
border: (0, 10, 0, 0)
<MainMenu>:
states_cities_or_areas: states_cities_or_areas
dropdown: dropdown
BoxLayout:
orientation: 'vertical'
#spacing : 10
BoxLayout:
canvas.before:
Rectangle:
pos: self.pos
size: self.size
size_hint_y: 1
MenuButton:
id: btn
text: 'Test'
size : (60,30)
on_release: dropdown.open(self)
CustDrop:
id: dropdown
auto_width: False
width: 150
DropdownButton:
text: 'Test1'
size_hint_y: None
height: '32dp'
on_release: root.display_states()
DropdownButton:
text: 'Test2'
size_hint_y: None
height: '32dp'
on_release: root.display_cities()
DropdownButton:
text: 'Test3'
size_hint_y: None
height: '32dp'
on_release: root.display_areas()
BoxLayout:
canvas.before:
Rectangle:
pos: self.pos
size: self.size
Color:
rgb: (1,1,1)
Label:
size_hint_x: 45
BoxLayout:
id: states_cities_or_areas
size_hint_y: 10
Label:
size_hint_y: 1
任何人都可以帮助我吗？
当我点击测试然后子菜单将打开。当我点击状态然后它看起来很好。但是我点击城市然后在'测试'和行之间增加距离。
/>
当我点击“城市”然后显示城市行。当我点击任何一行然后它看起来选择状态（树视图）显示“更新状态”后面
当任何人在'州Id'中输入任何内容时，我想要更新状态。
更新代码后我有更多错误。
1.当我从选择状态中选择状态时，它不会将该字符串置于状态Name.Its显示错误
文件“/usr/share/kivy-examples/gst_fact/test.kv”，第50行，
app.root.stateName.text = self.text
AttributeError：'MainMenu'对象没有属性'stateName'
答案 0 :(得分：2)
我希望当我点击任何人（州，市，区），然后排行显示像Image_1的顶部位置。
这是因为您已在kv中设置主菜单的规则，以便为每个盒子城市，州和地区预留空间。您可以删除这些规则，只添加一个名为states_cities_or_areas的框：
...
<MainMenu>:
states_cities_or_areas: states_cities_or_areas
dropdown: dropdown
BoxLayout:
orientation: 'vertical'
#spacing : 10
BoxLayout:
canvas.before:
Rectangle:
pos: self.pos
size: self.size
size_hint_y: 5
MenuButton:
id: btn
text: 'Test'
size : (60,30)
on_release: dropdown.open(self)
CustDrop:
id: dropdown
auto_width: False
width: 150
DropdownButton:
text: 'State'
size_hint_y: None
height: '32dp'
on_release: root.display_states()
DropdownButton:
text: 'City'
size_hint_y: None
height: '32dp'
on_release: root.display_cities()
DropdownButton:
text: 'Area'
size_hint_y: None
height: '32dp'
on_release: root.display_areas()
BoxLayout:
size_hint_y: 2.5
canvas.before:
Rectangle:
pos: self.pos
size: self.size
Color:
rgb: (1,1,1)
Label:
size_hint_x: 45
BoxLayout:
id: states_cities_or_areas
size_hint_y: 89
Label:
size_hint_y: 1
...
然后更改 .py 中mainmenu的一些方法和属性：
...
class MainMenu(BoxLayout):
states_cities_or_areas = ObjectProperty()
rv = ObjectProperty(None)
dropdown = ObjectProperty(None)
#Define City Variable
rvcity = ObjectProperty(None)
#Area City Variable
rvarea = ObjectProperty(None)
def display_states(self):
self.dropdown.dismiss()
self.remove_widgets()
self.rv = RV()
self.states_cities_or_areas.add_widget(self.rv)
def display_cities(self):
self.dropdown.dismiss()
self.remove_widgets()
self.rvcity = RVCITY()
self.states_cities_or_areas.add_widget(self.rvcity)
def display_areas(self):
self.dropdown.dismiss()
self.remove_widgets()
self.rvarea = RVAREA()
self.states_cities_or_areas.add_widget(self.rvarea)
def remove_widgets(self):
self.states_cities_or_areas.clear_widgets()
...
我注意到没有显示城市colums的瓷砖，你可以在kv中显示它：
...
<RVCITY>:
BoxLayout:
orientation: "vertical"
GridLayout:
size_hint: 1, None
size_hint_y: None
height: 25
cols: 5
...
当我点击＆＃39; city＆＃39;然后显示一排城市。当我点击任何一行然后它看起来选择状态（树视图）显示后面的更新状态＆＃39;就像image_4一样，当任何人在“状态ID”中输入任何内容时，我希望它处于更新状态。像image_5
这是因为在弹出窗口打开之前，StateId文本输入已经是on_text。我建议您将on_text替换为on_focus：
...
<EditCityPopup>:
title: "Update State"
size_hint: None, None
size: 500, 400
auto_dismiss: False
BoxLayout:
orientation: "vertical"
GridLayout:
cols: 2
backgroun_color: 0, 0.517, 0.705, 1
spacing: 10, 10
Label:
text: "City Id"
Label:
id: cityId
text: root.col_data[0]
Label:
text: "State Id"
TextInput:
id: stateId
text: root.col_data[1]
on_focus: root.display_states_treeview(self)
...
我在select state中使用treeview。在select状态下添加滚动条。当状态增加时滚动将是不错的选项
您只需将树视图放在滚动视图中：
...
<TreeViewLabel>:
size_hint_y: None
height: 24
on_touch_down:
app.root.stateName.text = self.text
app.root.select_node(self)
app.root.popup.dismiss()
<TreeviewGroup>:
treeview: treeview
title: "Select State"
size_hint: .3,.3
auto_dismiss: False
BoxLayout
orientation: "vertical"
ScrollView:
size_hint: 1, .9
BoxLayout:
size_hint_y: None
id: treeview
height: root.h
Button:
size_hint: 1, 0.1
text: "Close"
on_release: root.dismiss()
和.py：
...
class TreeviewGroup(Popup):
treeview = ObjectProperty(None)
tv = ObjectProperty(None)
h = NumericProperty(0)
#ti = ObjectProperty()
def __init__(self, **kwargs):
super(TreeviewGroup, self).__init__(**kwargs)
self.tv = TreeView(root_options=dict(text=""),
hide_root=True,
indent_level=4)
for branch in tree:
populate_tree_view(self.tv, None, branch)
#self.remove_widgets()
self.treeview.add_widget(self.tv)
Clock.schedule_once(self.update, 1)
def remove_widgets(self):
for child in [child for child in self.treeview.children]:
self.treeview.remove_widget(child)
def update(self, *args):
self.h = len([child for child in self.tv.children]) * 24
第四点;
将stateName传递给另一个弹出窗口，在创建第二个弹出窗口时保留第一个弹出窗口的实例：
...
class TreeviewGroup(Popup):
treeview = ObjectProperty(None)
tv = ObjectProperty(None)
h = NumericProperty(0)
#ti = ObjectProperty()
popup = ObjectProperty()
...
class EditCityPopup(Popup):
...
def display_states_treeview(self, instance):
if len(instance.text) > 0:
if self.popup is None:
self.popup = TreeviewGroup()
self.popup.popup = self
self.popup.open()
要到达kv中的第一个弹出窗口，请进行以下更改：
中的.py：
...
class MyBoxLayout(BoxLayout):
rooot = ObjectProperty()
...
在kv中：
...
<TreeViewLabel>:
size_hint_y: None
height: 24
on_touch_down:
root.parent.parent.rooot.popup.col_data[1] = self.text
#app.root.select_node(self)
root.parent.parent.rooot.popup.popup.dismiss()
<TreeviewGroup>:
id: treeview
treeview: treeview
title: "Select State"
size_hint: .3,.3
size: 800, 800
auto_dismiss: False
BoxLayout
orientation: "vertical"
ScrollView:
size_hint: 1, .9
MyBoxLayout:
size_hint_y: None
id: treeview
height: root.h
rooot: root
...