Kivy for android in action: Toolbox 2: Filechooser

CryptoWatch-Kivy          1.13
Kivy                      2.0.0
Kivy-Garden               0.1.4
kivy-garden.wordcloud     1.0.0
kivymd                    0.104.2.dev0

Quick Review

tree

├── bin
│   └── KarobbenTB-1.3-armeabi-v7a-debug.apk
├── buildozer.spec
├── favicon.ico
├── font
│   ├── FangZhengHeiTiFanTi-1.ttf
│   ├── HuaKangXinZhuanTi-1.ttc
│   ├── HuaKangXinZhuanTi-1.ttf
│   └── JingDianFanJiaoZhuan-1.ttf
├── Layout
│   ├── filechooser.kv
│   ├── Navigation_Draw.kv
│   ├── Navigation_Tabs.kv
│   └── Seq.kv
├── lib
│   └── bio_seq.py
├── libWidget
│   ├── filechooser.py
│   └── Seq.py
├── logo.png
└── main.py

Filechooser

My another post about Filechooser: Karobben
Document: kivy.org

touch libWidget filechooser.py

main.py

+ from libWidget.filechooser import ConfirmPopup
class MainApp(MDApp):
+     ConfirmPopup = ConfirmPopup()
+     def change_text(self, Files):
+         self.Button_test.text = Files[0]
+         print(str(Files))

def build(self):
    screen = Screen()
+   screen.change_text = self.change_text

def on_start(self):
+       self.Button_test =  MDRectangleFlatButton(
+          text="Hello, World",
+           pos_hint={"center_x": 0.5, "center_y": 0.5},
+           on_release = self.ConfirmPopup.popup_func)
+       Tab1.add_widget(self.Button_test)

filechooser.py

from kivy.app import App
from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.popup import Popup
from kivy.lang import Builder


class ConfirmPopup(BoxLayout):
    def __init__(self, **kwargs):
        Builder.unload_file("./Layout/filechooser.kv")
        Builder.load_file("./Layout/filechooser.kv")
        self.register_event_type('on_answer')
        self.register_event_type('on_cancel')
        super(ConfirmPopup, self).__init__(**kwargs)
        self.total_images = 0

    def on_answer(self, filename, MainPage):
        self.total_images = filename
        if len(filename) >0:
            MainPage.change_text(self.total_images)
        else:
            MainPage.change_text("Please Select a File")

    def on_cancel(self, filename, MainPage):
        pass


    def popup_func(self, *args):
        content = ConfirmPopup()
        content.bind(on_answer = self._on_answer)
        content.bind(on_cancel = self._on_answer)
        #content.bind(Cancel    = self._on_answer)
        self.popup = Popup(title="Select .zip file",
                           content=content,
                           size_hint=(None, None),
                           size=(500, 500),
                           auto_dismiss=True)
        self.popup.open()

    def _on_answer(self, instance, answer, obj):
        self.popup.dismiss()

    def dismiss(self):
        self.popup.dismiss()

#: kivy 1.10.0
<ConfirmPopup>:
    BoxLayout:
        orientation: 'vertical'
        FileChooserIconView:
            id: filechooser
            #filters: ['*.zip']

        GridLayout:
            cols: 2
            size_hint: 1,0.2
            Button:
                text: 'OK'
                on_release: root.dispatch('on_answer', filechooser.selection, app.root)
                size_hint: 1,0.2
            Button:
                id: cancel
                text: 'Cancel'
                on_release: root.dispatch('on_cancel', filechooser.selection, app.root)
                size_hint: 1,0.2

main.py

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.utils import platform

from kivy.uix.screenmanager import Screen
from kivymd.uix.button import MDRectangleFlatButton
from kivy.lang import Builder

from kivymd.app import MDApp

import os


from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.popup import Popup
from kivy.lang import Builder



from filechooser import ConfirmPopup


class MainPage(AnchorLayout):
    ConfirmPopup = ConfirmPopup()
    def __init__(self, **kwargs):
        super(MainPage, self).__init__(**kwargs)

    def change_text(self, Files):
        self.the_time.text = str(Files)
        print(str(Files))



class Main(App):
    def build(self):
        Builder.load_file("main.kv")
        return MainPage()


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

Change the style of the Filechooser

Background color: @ Nykakin^[1]

canvas.before:
    Color:
        rgb: 1, 1, 1
    Rectangle:
        pos: self.pos
        size: self.size

Else

newbie programmerz; 2019; Changing the icon of Kivy FileChooserIconView; StackOverflow

Cube_tbh; 2015; How to allow user to choose file as background image in kivy?

GitHub Repository: Karobben Toolbox
Android Release: Karobben Toolbox

digraph{ rankdir = "LR" mm1 [label ="", height = 0, width = 0, shape = none] mm2 [label ="", height = 0, width = 0, shape = none] mm3 [label ="", height = 0, width = 0, shape = none] mm4 [label ="", height = 0, width = 0, shape = none] mm5 [label ="", height = 0, width = 0, shape = none] mm6 [label ="", height = 0, width = 0, shape = none] mm7 [label ="", height = 0, width = 0, shape = none] Navigation [URL="/2021/04/26/Python/kivy-inaction-tb-1/#Navigation", fontcolor = "#3273DC"] Navigation_S [URL="/2021/04/26/Python/kivy-inaction-tb-1/#Separate-the-KV-and-PY", fontcolor = "#3273DC"] Tags [URL ="/2021/04/26/Python/kivy-inaction-tb-1/#Tags", fontcolor = "#3273DC"] FF [label="First Function"; URL ="/2021/04/26/Python/kivy-inaction-tb-1/#First-Function", fontcolor = "#3273DC"] FileChooser [label="File Chooser"; URL ="/2021/04/28/Python/kivy-inaction-tb-2/#Filechooser", fontcolor = "#3273DC"] {rank="same"; mm1; mm2; mm3; mm4; mm5; mm6, mm7} node [shape = "box"] Navigation_S [label = "Separate the KV and PY"] Navigation -> mm2 mm3 -> Navigation_S [dir=back] Tags -> mm4 mm5 -> FF [dir=back] FileChooser -> mm6 mm1 -> mm2 -> mm3 -> mm4 -> mm5 -> mm6 -> mm7 [dir = "none"] }

---

1. picibucor; 2016; font-color of FileChooser; StackOverflow ↩︎