在 Kivy 中打开 Mimic Tkinter 文件

Question

我以前主要使用 Tkinter，我使用以下代码来存储我选择的文件的路径。在探索了 Kivy 之后，似乎 Kivy 没有这么简单的功能。所以我尝试改用文件选择器

path = filedialog.askopenfilename(initialdir="/", title="Select file")

主要代码很简单

class checker_ui(GridLayout):
    def findreport(self,path):
        pass



class Checker(App):
    def build(self):
        return checker_ui()

if __name__ == '__main__':
    Checker().run()

然后我创建了一个 .kv 文件，只是为了看看 filechooser 的样子。脚本只会打开并冻结。

<checker_ui>:
    BoxLayout:
        FileChooserIconLayout:
            id:filechooser
            on_selection:root.select(*args)

这是输出

我到处搜索，没有看到任何人遇到类似问题。是否有替代方法可以尝试模仿 tkinter 行为，或者我是否遇到了这个问题？我在 Windows 机器上，正常的 kivy 小部件可以工作，即：按钮、标签等。

Answer 1

所以我写的代码比你多很多（主要基于 kivy 示例 @https://kivy.org/docs/api-kivy.uix.filechooser.html#usage-example）

from kivy.app import App
from kivy.uix.floatlayout import FloatLayout
from kivy.factory import Factory
from kivy.properties import ObjectProperty
from kivy.uix.popup import Popup
from kivy.lang import Builder

Builder.load_string("""
#:kivy 1.1.0

<Root>:
    text_input: text_input

    BoxLayout:
        orientation: 'vertical'
        BoxLayout:
            size_hint_y: None
            height: 30
            Button:
                text: 'Load'
                on_release: root.show_load()
            Button:
                text: 'Save'
                on_release: root.show_save()

        BoxLayout:
            TextInput:
                id: text_input
                text: ''

            RstDocument:
                text: text_input.text
                show_errors: True

<LoadDialog>:
    BoxLayout:
        size: root.size
        pos: root.pos
        orientation: "vertical"
        FileChooserListView:
            id: filechooser

        BoxLayout:
            size_hint_y: None
            height: 30
            Button:
                text: "Cancel"
                on_release: root.cancel()

            Button:
                text: "Load"
                on_release: root.load(filechooser.path, filechooser.selection)

<SaveDialog>:
    text_input: text_input
    BoxLayout:
        size: root.size
        pos: root.pos
        orientation: "vertical"
        FileChooserListView:
            id: filechooser
            on_selection: text_input.text = self.selection and self.selection[0] or ''

        TextInput:
            id: text_input
            size_hint_y: None
            height: 30
            multiline: False

        BoxLayout:
            size_hint_y: None
            height: 30
            Button:
                text: "Cancel"
                on_release: root.cancel()

            Button:
                text: "Save"
                on_release: root.save(filechooser.path, text_input.text)""")
import os


class LoadDialog(FloatLayout):
    load = ObjectProperty(None)
    cancel = ObjectProperty(None)


class SaveDialog(FloatLayout):
    save = ObjectProperty(None)
    text_input = ObjectProperty(None)
    cancel = ObjectProperty(None)


class Root(FloatLayout):
    loadfile = ObjectProperty(None)
    savefile = ObjectProperty(None)
    text_input = ObjectProperty(None)

    def dismiss_popup(self):
        self._popup.dismiss()

    def show_load(self):
        content = LoadDialog(load=self.load, cancel=self.dismiss_popup)
        self._popup = Popup(title="Load file", content=content,
                            size_hint=(0.9, 0.9))
        self._popup.open()

    def show_save(self):
        content = SaveDialog(save=self.save, cancel=self.dismiss_popup)
        self._popup = Popup(title="Save file", content=content,
                            size_hint=(0.9, 0.9))
        self._popup.open()

    def load(self, path, filename):
        with open(os.path.join(path, filename[0])) as stream:
            self.text_input.text = stream.read()

        self.dismiss_popup()

    def save(self, path, filename):
        with open(os.path.join(path, filename), 'w') as stream:
            stream.write(self.text_input.text)

        self.dismiss_popup()


class Editor(App):
    def build(self):
        return Root()




if __name__ == '__main__':
    Editor().run()

Answer 2

解决方案

1. 将 FileChooserIconLayout 替换为 FileChooserIconView
2. 添加一个 BoxLayout 并使 FileChooserIconView 成为 BoxLayout 的子项

示例

main.py

​​>

from kivy.app import App
from kivy.uix.gridlayout import GridLayout


class Checker_ui(GridLayout):

    def findreport(self, path):
        print("path=", path)


class Checker(App):

    def build(self):
        return Checker_ui()


if __name__ == "__main__":
    Checker().run()

checker.kv

#:kivy 1.10.0

<Checker_ui>:
    BoxLayout:
        size: root.size
        pos: root.pos
        orientation: "vertical"
        FileChooserIconView:
            id: filechooser
            on_selection: root.select(*args)

输出

Answer 3

嘿，如果有人想打开所有类型的文件，只需使用（mp4、jpg、pdf、txt、docs...等）

导入浏览器

webbrowser.open(文件名[0])