Python/Kivy : 将 TextInput 文本从一个 class 传递到另一个 class
Python/Kivy : pass TextInput text from one class to another class
当我 运行 test.py 然后显示 name TextInput.When 我输入 TextInput 然后显示 Tree View 和 filter TextInput.When 我在 filter TextInput 中输入一些内容，它根据类型 keyword.
显示结果
但是我想当有人输入 name TextInput 然后输入 keyword 放入 filter TextInput 并且结果应该根据 pass keyword.
[=25= 显示]
test.py
from kivy.uix.screenmanager import Screen
from kivy.app import App
from kivy.lang import Builder
from kivy.core.window import Window
from kivy.uix.popup import Popup
from kivy.uix.treeview import TreeView, TreeViewLabel, TreeViewNode
from kivy.uix.label import Label
from kivy.properties import ObjectProperty
Window.size = (500, 400)
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)
class TreeViewLabel(Label, TreeViewNode):
pass
class TreeviewGroup(Popup):
treeview = ObjectProperty(None)
tv = ObjectProperty(None)
popup = ObjectProperty()
def __init__(self,obj, **kwargs):
super(TreeviewGroup, self).__init__(**kwargs)
self.tv = TreeView(root_options=dict(text=""),
hide_root=False,
indent_level=4)
rows = [('test{}').format(i) for i in range(1, 20)]
tree = [{'node_id': r, 'children': []} for r in rows]
self.tv.bind(minimum_height=self.treeview.setter('height'))
for branch in tree:
populate_tree_view(self.tv, None, branch)
self.treeview.add_widget(self.tv)
def filter(self, f):
#self.ti.text = "text12"
self.treeview.clear_widgets()
self.tv = TreeView(root_options=dict(text=""),
hide_root=False,
indent_level=4)
rows = [('test{}').format(i) for i in range(1, 20)]
tree = []
for r in rows:
tree.append({'node_id': r, 'children': []})
new_tree = []
for n in tree:
if f.lower() in n['node_id'].lower():
new_tree.append(n)
for branch in new_tree:
populate_tree_view(self.tv, None, branch)
self.treeview.add_widget(self.tv)
def remove_widgets(self):
for child in [child for child in self.treeview.children]:
self.treeview.remove_widget(child)
class GroupScreen(Screen):
name = ObjectProperty(None)
popup = ObjectProperty(None)
def display_groups(self, instance):
if len(instance.text) > 0:
if self.popup is None:
self.popup = TreeviewGroup(self)
self.popup.open()
class Group(App):
def build(self):
self.root = Builder.load_file('test.kv')
return self.root
if __name__ == '__main__':
Group().run()
test.kv
#:kivy 1.10.0
<TreeViewLabel>:
on_touch_down:
app.root.name.text = self.text
app.root.popup.dismiss()
<TreeviewGroup>:
treeview: treeview
title: "Select"
title_size: 17
size: 800, 800
auto_dismiss: False
scroll: scroll
fltr : fltr
BoxLayout
orientation: "vertical"
TextInput:
id : fltr
size_hint_y: .13
on_text: root.filter(self.text)
ScrollView:
id: scroll
size_hint: 1, .9
BoxLayout:
size_hint_y: None
id: treeview
GridLayout:
cols: 2
row_default_height: '20dp'
size_hint: .5, 0.1
pos_hint: {'x': .25, 'y': 1}
Button:
text: 'Ok'
on_release: root.dismiss()
Button:
text: 'Cancel'
on_release: root.dismiss()
<CustomLabel@Label>:
text_size: self.size
valign: "middle"
padding_x: 5
<SingleLineTextInput@TextInput>:
multiline: False
<GreenButton@Button>:
background_color: 1, 1, 1, 1
size_hint_y: None
height: self.parent.height * 0.150
GroupScreen:
name: name
GridLayout:
cols: 2
padding : 30,30
spacing: 10, 10
row_default_height: '40dp'
CustomLabel:
text: ' '
CustomLabel:
text: ' '
CustomLabel:
text: 'Name'
SingleLineTextInput:
id: name
text:' '
multiline: False
on_text: root.display_groups(self)
GreenButton:
text: 'Ok'
GreenButton:
text: 'Cancel'
on_press: app.stop()
传递整个单词，例如关键字或0，将on_text替换为on_text_验证.
DRY - 不要重复自己
有重复的代码，为了方便维护，我把它们变成了模块。
def create_treeview_root(self):
...
def create_treeview_branch(self, obj):
...
def dismiss_callback(self):
片段
GroupScreen:
...
SingleLineTextInput:
id: name
focus: True
multiline: False
on_text_validate: root.display_groups(self)
示例
main.py
from kivy.uix.screenmanager import Screen
from kivy.app import App
from kivy.lang import Builder
from kivy.core.window import Window
from kivy.uix.popup import Popup
from kivy.uix.treeview import TreeView, TreeViewLabel, TreeViewNode
from kivy.uix.label import Label
from kivy.properties import ObjectProperty, StringProperty, ListProperty
Window.size = (500, 400)
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)
class TreeViewLabel(Label, TreeViewNode):
pass
class TreeviewGroup(Popup):
treeview = ObjectProperty(None)
tv = ObjectProperty(None)
filter_text = StringProperty('')
tree = ListProperty([])
def __init__(self, obj, **kwargs):
super(TreeviewGroup, self).__init__(**kwargs)
self.create_treeview_root()
rows = [('test{}').format(i) for i in range(1, 20)]
self.tree = [{'node_id': r, 'children': []} for r in rows]
self.tv.bind(minimum_height=self.treeview.setter('height'))
self.create_treeview_branch(self.tree)
def create_treeview_root(self):
self.tv = TreeView(root_options=dict(text=""),
hide_root=False,
indent_level=4)
def create_treeview_branch(self, obj):
for branch in obj:
populate_tree_view(self.tv, None, branch)
self.treeview.add_widget(self.tv)
def on_open(self):
self.filter_text = App.get_running_app().root.name.text
def dismiss_callback(self):
self.treeview.clear_widgets()
self.dismiss()
App.get_running_app().root.name.focus = True
def filter(self, f):
self.treeview.clear_widgets()
self.create_treeview_root()
new_tree = []
for n in self.tree:
if f.lower() in n['node_id'].lower():
new_tree.append(n)
self.create_treeview_branch(new_tree)
class GroupScreen(Screen):
name = ObjectProperty(None)
popup = ObjectProperty(None)
def display_groups(self, instance):
if len(instance.text) > 0:
if self.popup is None:
self.popup = TreeviewGroup(self)
self.popup.open()
class Group(App):
def build(self):
self.root = Builder.load_file('test.kv')
return self.root
if __name__ == '__main__':
Group().run()
test.kv
#:kivy 1.10.0
<TreeViewLabel>:
on_touch_down:
app.root.name.text = self.text
app.root.popup.dismiss_callback()
<TreeviewGroup>:
treeview: treeview
title: "Select"
title_size: 17
size: 800, 800
auto_dismiss: False
scroll: scroll
fltr : fltr
BoxLayout
orientation: "vertical"
TextInput:
id : fltr
focus: True
text: root.filter_text
size_hint_y: .13
on_text: root.filter(self.text)
ScrollView:
id: scroll
size_hint: 1, .9
BoxLayout:
size_hint_y: None
id: treeview
GridLayout:
cols: 2
row_default_height: '20dp'
size_hint: .5, 0.1
pos_hint: {'x': .25, 'y': 1}
Button:
text: 'Ok'
on_release:
root.dismiss_callback()
Button:
text: 'Cancel'
on_release:
root.dismiss_callback()
<CustomLabel@Label>:
text_size: self.size
valign: "middle"
padding_x: 5
<SingleLineTextInput@TextInput>:
multiline: False
<GreenButton@Button>:
background_color: 1, 1, 1, 1
size_hint_y: None
height: self.parent.height * 0.150
GroupScreen:
name: name
GridLayout:
cols: 2
padding : 30,30
spacing: 10, 10
row_default_height: '40dp'
CustomLabel:
text: ' '
CustomLabel:
text: ' '
CustomLabel:
text: 'Name'
SingleLineTextInput:
id: name
focus: True
multiline: False
on_text_validate: root.display_groups(self)
GreenButton:
text: 'Ok'
GreenButton:
text: 'Cancel'
on_press: app.stop()
输出
当我 运行 test.py 然后显示 name TextInput.When 我输入 TextInput 然后显示 Tree View 和 filter TextInput.When 我在 filter TextInput 中输入一些内容，它根据类型 keyword.
显示结果
但是我想当有人输入 name TextInput 然后输入 keyword 放入 filter TextInput 并且结果应该根据 pass keyword.
[=25= 显示]
test.py
from kivy.uix.screenmanager import Screen
from kivy.app import App
from kivy.lang import Builder
from kivy.core.window import Window
from kivy.uix.popup import Popup
from kivy.uix.treeview import TreeView, TreeViewLabel, TreeViewNode
from kivy.uix.label import Label
from kivy.properties import ObjectProperty
Window.size = (500, 400)
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)
class TreeViewLabel(Label, TreeViewNode):
pass
class TreeviewGroup(Popup):
treeview = ObjectProperty(None)
tv = ObjectProperty(None)
popup = ObjectProperty()
def __init__(self,obj, **kwargs):
super(TreeviewGroup, self).__init__(**kwargs)
self.tv = TreeView(root_options=dict(text=""),
hide_root=False,
indent_level=4)
rows = [('test{}').format(i) for i in range(1, 20)]
tree = [{'node_id': r, 'children': []} for r in rows]
self.tv.bind(minimum_height=self.treeview.setter('height'))
for branch in tree:
populate_tree_view(self.tv, None, branch)
self.treeview.add_widget(self.tv)
def filter(self, f):
#self.ti.text = "text12"
self.treeview.clear_widgets()
self.tv = TreeView(root_options=dict(text=""),
hide_root=False,
indent_level=4)
rows = [('test{}').format(i) for i in range(1, 20)]
tree = []
for r in rows:
tree.append({'node_id': r, 'children': []})
new_tree = []
for n in tree:
if f.lower() in n['node_id'].lower():
new_tree.append(n)
for branch in new_tree:
populate_tree_view(self.tv, None, branch)
self.treeview.add_widget(self.tv)
def remove_widgets(self):
for child in [child for child in self.treeview.children]:
self.treeview.remove_widget(child)
class GroupScreen(Screen):
name = ObjectProperty(None)
popup = ObjectProperty(None)
def display_groups(self, instance):
if len(instance.text) > 0:
if self.popup is None:
self.popup = TreeviewGroup(self)
self.popup.open()
class Group(App):
def build(self):
self.root = Builder.load_file('test.kv')
return self.root
if __name__ == '__main__':
Group().run()
test.kv
#:kivy 1.10.0
<TreeViewLabel>:
on_touch_down:
app.root.name.text = self.text
app.root.popup.dismiss()
<TreeviewGroup>:
treeview: treeview
title: "Select"
title_size: 17
size: 800, 800
auto_dismiss: False
scroll: scroll
fltr : fltr
BoxLayout
orientation: "vertical"
TextInput:
id : fltr
size_hint_y: .13
on_text: root.filter(self.text)
ScrollView:
id: scroll
size_hint: 1, .9
BoxLayout:
size_hint_y: None
id: treeview
GridLayout:
cols: 2
row_default_height: '20dp'
size_hint: .5, 0.1
pos_hint: {'x': .25, 'y': 1}
Button:
text: 'Ok'
on_release: root.dismiss()
Button:
text: 'Cancel'
on_release: root.dismiss()
<CustomLabel@Label>:
text_size: self.size
valign: "middle"
padding_x: 5
<SingleLineTextInput@TextInput>:
multiline: False
<GreenButton@Button>:
background_color: 1, 1, 1, 1
size_hint_y: None
height: self.parent.height * 0.150
GroupScreen:
name: name
GridLayout:
cols: 2
padding : 30,30
spacing: 10, 10
row_default_height: '40dp'
CustomLabel:
text: ' '
CustomLabel:
text: ' '
CustomLabel:
text: 'Name'
SingleLineTextInput:
id: name
text:' '
multiline: False
on_text: root.display_groups(self)
GreenButton:
text: 'Ok'
GreenButton:
text: 'Cancel'
on_press: app.stop()
传递整个单词，例如关键字或0，将on_text替换为on_text_验证.
DRY - 不要重复自己
有重复的代码，为了方便维护，我把它们变成了模块。
def create_treeview_root(self):
...
def create_treeview_branch(self, obj):
...
def dismiss_callback(self):
片段
GroupScreen:
...
SingleLineTextInput:
id: name
focus: True
multiline: False
on_text_validate: root.display_groups(self)
示例
main.py
from kivy.uix.screenmanager import Screen
from kivy.app import App
from kivy.lang import Builder
from kivy.core.window import Window
from kivy.uix.popup import Popup
from kivy.uix.treeview import TreeView, TreeViewLabel, TreeViewNode
from kivy.uix.label import Label
from kivy.properties import ObjectProperty, StringProperty, ListProperty
Window.size = (500, 400)
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)
class TreeViewLabel(Label, TreeViewNode):
pass
class TreeviewGroup(Popup):
treeview = ObjectProperty(None)
tv = ObjectProperty(None)
filter_text = StringProperty('')
tree = ListProperty([])
def __init__(self, obj, **kwargs):
super(TreeviewGroup, self).__init__(**kwargs)
self.create_treeview_root()
rows = [('test{}').format(i) for i in range(1, 20)]
self.tree = [{'node_id': r, 'children': []} for r in rows]
self.tv.bind(minimum_height=self.treeview.setter('height'))
self.create_treeview_branch(self.tree)
def create_treeview_root(self):
self.tv = TreeView(root_options=dict(text=""),
hide_root=False,
indent_level=4)
def create_treeview_branch(self, obj):
for branch in obj:
populate_tree_view(self.tv, None, branch)
self.treeview.add_widget(self.tv)
def on_open(self):
self.filter_text = App.get_running_app().root.name.text
def dismiss_callback(self):
self.treeview.clear_widgets()
self.dismiss()
App.get_running_app().root.name.focus = True
def filter(self, f):
self.treeview.clear_widgets()
self.create_treeview_root()
new_tree = []
for n in self.tree:
if f.lower() in n['node_id'].lower():
new_tree.append(n)
self.create_treeview_branch(new_tree)
class GroupScreen(Screen):
name = ObjectProperty(None)
popup = ObjectProperty(None)
def display_groups(self, instance):
if len(instance.text) > 0:
if self.popup is None:
self.popup = TreeviewGroup(self)
self.popup.open()
class Group(App):
def build(self):
self.root = Builder.load_file('test.kv')
return self.root
if __name__ == '__main__':
Group().run()
test.kv
#:kivy 1.10.0
<TreeViewLabel>:
on_touch_down:
app.root.name.text = self.text
app.root.popup.dismiss_callback()
<TreeviewGroup>:
treeview: treeview
title: "Select"
title_size: 17
size: 800, 800
auto_dismiss: False
scroll: scroll
fltr : fltr
BoxLayout
orientation: "vertical"
TextInput:
id : fltr
focus: True
text: root.filter_text
size_hint_y: .13
on_text: root.filter(self.text)
ScrollView:
id: scroll
size_hint: 1, .9
BoxLayout:
size_hint_y: None
id: treeview
GridLayout:
cols: 2
row_default_height: '20dp'
size_hint: .5, 0.1
pos_hint: {'x': .25, 'y': 1}
Button:
text: 'Ok'
on_release:
root.dismiss_callback()
Button:
text: 'Cancel'
on_release:
root.dismiss_callback()
<CustomLabel@Label>:
text_size: self.size
valign: "middle"
padding_x: 5
<SingleLineTextInput@TextInput>:
multiline: False
<GreenButton@Button>:
background_color: 1, 1, 1, 1
size_hint_y: None
height: self.parent.height * 0.150
GroupScreen:
name: name
GridLayout:
cols: 2
padding : 30,30
spacing: 10, 10
row_default_height: '40dp'
CustomLabel:
text: ' '
CustomLabel:
text: ' '
CustomLabel:
text: 'Name'
SingleLineTextInput:
id: name
focus: True
multiline: False
on_text_validate: root.display_groups(self)
GreenButton:
text: 'Ok'
GreenButton:
text: 'Cancel'
on_press: app.stop()