如何从弹出文件选择器中获取值?
How to get value from popup filechooser?
我从下面得到了一个弹出文件选择器 link:
Kivy popup Filechooser pass variable (selection)
我无法获取要在应用程序的主 Tab() class 实例和 class FileChoosePopup 弹出实例之间传递的文件路径字符串值。我知道以前有人问过这个问题,但我似乎无法弄清楚。当我 运行 应用程序并单击要传递到主 class 上的 TextInput 的文件时,出现以下错误:
AttributeError: 'super' object has no attribute '__getattr__'
我曾尝试使用超级初始化方法在主 class 中传递对弹出窗口 class 实例的引用,但应用程序甚至没有初始化。
这是我在 python 中的弹出窗口:
class FileChoosePopup(Popup):
file_path = StringProperty("No file chosen")
def __init__(self, **kwargs):
super(FileChoosePopup, self).__init__(**kwargs)
self.Tab = Tab()
def load(self, selection):
self.file_path = str(selection[0])
path_file = self.file_path
the_file = self.ids.get_file #is the textinput id
if path_file != "No file chosen":
the_file.text = path_file
self.dismiss()
else:
self.dismiss()
class Tab(StackLayout):
def open_popup(self):
the_popup = FileChoosePopup()
the_popup.open()
这里是 kivy 代码:
<FileChoosePopup>:
title: "Choose a .CSV File"
size_hint: .9, .9
auto_dismiss: False
BoxLayout:
orientation: "vertical"
FileChooser:
id: filechooser
FileChooserIconLayout
BoxLayout:
size_hint: (1, 0.1)
pos_hint: {'center_x': .5, 'center_y': .5}
spacing: 20
RoundedCancelButton:
text: "Cancel"
on_release: root.dismiss()
RoundedAcceptButton:
text: "Load"
on_release: root.load(filechooser.selection)
id: ldbtn
disabled: True if filechooser.selection==[] else False
<Tab>:
TabbedPanel:
do_defualt_tab: False
background_color: (.87, .87, .87, 1)
border: [0, 0, 0, 0]
background_image: 'path/to/background/image'
TabbedPanelItem:
text: 'Import'
background_color: (1, .5, 0, 1)
background_normal: ''
StackLayout:
orientation: 'lr-tb'
size_hint_y: None
height: 30
spacing: 5
Label:
text: ''
size_hint_x: 1
Label:
text: ''
size_hint_x: 0.2
RoundedButton:
text: 'Choose File'
size_hint_x: 0.2
on_press: root.open_popup()
TextInput:
id: get_file
readonly: True
size_hint_x: 0.4
Label:
text: ''
size_hint_x: 0.2
有人可以给我一些关于如何获取从弹出窗口传递到文本输入的值的指示吗?
参考文本输入
使用以下内容填充 TextInput
:
self.ids.get_file.text = self.file_path
例子
main.py
from kivy.app import App
from kivy.uix.popup import Popup
from kivy.uix.tabbedpanel import TabbedPanel
from kivy.properties import ObjectProperty, StringProperty
from kivy.lang import Builder
class FileChoosePopup(Popup):
load = ObjectProperty()
class Tab(TabbedPanel):
file_path = StringProperty("No file chosen")
the_popup = ObjectProperty(None)
def open_popup(self):
self.the_popup = FileChoosePopup(load=self.load)
self.the_popup.open()
def load(self, selection):
self.file_path = str(selection[0])
self.the_popup.dismiss()
print(self.file_path)
# check for non-empty list i.e. file selected
if self.file_path:
self.ids.get_file.text = self.file_path
Builder.load_file('main.kv')
class TestApp(App):
def build(self):
return Tab()
if __name__ == "__main__":
TestApp().run()
main.kv
<FileChoosePopup>:
title: "Choose a .CSV File"
size_hint: .9, .9
auto_dismiss: False
BoxLayout:
orientation: "vertical"
FileChooser:
id: filechooser
FileChooserIconLayout
BoxLayout:
size_hint: (1, 0.1)
pos_hint: {'center_x': .5, 'center_y': .5}
spacing: 20
Button:
text: "Cancel"
on_release: root.dismiss()
Button:
text: "Load"
on_release: root.load(filechooser.selection)
id: ldbtn
disabled: True if filechooser.selection==[] else False
<Tab>:
do_default_tab: False
TabbedPanelItem:
text: 'Import'
background_color: (1, .5, 0, 1)
background_normal: ''
StackLayout:
orientation: 'lr-tb'
size_hint_y: None
height: 30
spacing: 5
Label:
text: ''
size_hint_x: 1
Label:
text: ''
size_hint_x: 0.2
Button:
text: 'Choose File'
size_hint_x: 0.2
on_press: root.open_popup()
TextInput:
id: get_file
readonly: True
size_hint_x: 0.4
Label:
text: ''
size_hint_x: 0.2
输出
我从下面得到了一个弹出文件选择器 link:
Kivy popup Filechooser pass variable (selection)
我无法获取要在应用程序的主 Tab() class 实例和 class FileChoosePopup 弹出实例之间传递的文件路径字符串值。我知道以前有人问过这个问题,但我似乎无法弄清楚。当我 运行 应用程序并单击要传递到主 class 上的 TextInput 的文件时,出现以下错误:
AttributeError: 'super' object has no attribute '__getattr__'
我曾尝试使用超级初始化方法在主 class 中传递对弹出窗口 class 实例的引用,但应用程序甚至没有初始化。
这是我在 python 中的弹出窗口:
class FileChoosePopup(Popup):
file_path = StringProperty("No file chosen")
def __init__(self, **kwargs):
super(FileChoosePopup, self).__init__(**kwargs)
self.Tab = Tab()
def load(self, selection):
self.file_path = str(selection[0])
path_file = self.file_path
the_file = self.ids.get_file #is the textinput id
if path_file != "No file chosen":
the_file.text = path_file
self.dismiss()
else:
self.dismiss()
class Tab(StackLayout):
def open_popup(self):
the_popup = FileChoosePopup()
the_popup.open()
这里是 kivy 代码:
<FileChoosePopup>:
title: "Choose a .CSV File"
size_hint: .9, .9
auto_dismiss: False
BoxLayout:
orientation: "vertical"
FileChooser:
id: filechooser
FileChooserIconLayout
BoxLayout:
size_hint: (1, 0.1)
pos_hint: {'center_x': .5, 'center_y': .5}
spacing: 20
RoundedCancelButton:
text: "Cancel"
on_release: root.dismiss()
RoundedAcceptButton:
text: "Load"
on_release: root.load(filechooser.selection)
id: ldbtn
disabled: True if filechooser.selection==[] else False
<Tab>:
TabbedPanel:
do_defualt_tab: False
background_color: (.87, .87, .87, 1)
border: [0, 0, 0, 0]
background_image: 'path/to/background/image'
TabbedPanelItem:
text: 'Import'
background_color: (1, .5, 0, 1)
background_normal: ''
StackLayout:
orientation: 'lr-tb'
size_hint_y: None
height: 30
spacing: 5
Label:
text: ''
size_hint_x: 1
Label:
text: ''
size_hint_x: 0.2
RoundedButton:
text: 'Choose File'
size_hint_x: 0.2
on_press: root.open_popup()
TextInput:
id: get_file
readonly: True
size_hint_x: 0.4
Label:
text: ''
size_hint_x: 0.2
有人可以给我一些关于如何获取从弹出窗口传递到文本输入的值的指示吗?
参考文本输入
使用以下内容填充 TextInput
:
self.ids.get_file.text = self.file_path
例子
main.py
from kivy.app import App
from kivy.uix.popup import Popup
from kivy.uix.tabbedpanel import TabbedPanel
from kivy.properties import ObjectProperty, StringProperty
from kivy.lang import Builder
class FileChoosePopup(Popup):
load = ObjectProperty()
class Tab(TabbedPanel):
file_path = StringProperty("No file chosen")
the_popup = ObjectProperty(None)
def open_popup(self):
self.the_popup = FileChoosePopup(load=self.load)
self.the_popup.open()
def load(self, selection):
self.file_path = str(selection[0])
self.the_popup.dismiss()
print(self.file_path)
# check for non-empty list i.e. file selected
if self.file_path:
self.ids.get_file.text = self.file_path
Builder.load_file('main.kv')
class TestApp(App):
def build(self):
return Tab()
if __name__ == "__main__":
TestApp().run()
main.kv
<FileChoosePopup>:
title: "Choose a .CSV File"
size_hint: .9, .9
auto_dismiss: False
BoxLayout:
orientation: "vertical"
FileChooser:
id: filechooser
FileChooserIconLayout
BoxLayout:
size_hint: (1, 0.1)
pos_hint: {'center_x': .5, 'center_y': .5}
spacing: 20
Button:
text: "Cancel"
on_release: root.dismiss()
Button:
text: "Load"
on_release: root.load(filechooser.selection)
id: ldbtn
disabled: True if filechooser.selection==[] else False
<Tab>:
do_default_tab: False
TabbedPanelItem:
text: 'Import'
background_color: (1, .5, 0, 1)
background_normal: ''
StackLayout:
orientation: 'lr-tb'
size_hint_y: None
height: 30
spacing: 5
Label:
text: ''
size_hint_x: 1
Label:
text: ''
size_hint_x: 0.2
Button:
text: 'Choose File'
size_hint_x: 0.2
on_press: root.open_popup()
TextInput:
id: get_file
readonly: True
size_hint_x: 0.4
Label:
text: ''
size_hint_x: 0.2