Question

我正在尝试在Kivy中创建日历。我设法将其放在Popup小部件中，但是现在我不知道如何获取该属性。我正在尝试从动态创建的代表日期的按钮中获取文本。我的问题出现在这里。我不知道怎么做。下面是一个代码和kv文件。另外，如果有人需要“日历”，则可以根据需要下载和修改它。它是免费的：）

Py文件

from kivy.app import App
from kivy.uix.popup import Popup
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.properties import StringProperty, ObjectProperty, ListProperty, NumericProperty
import datetime


class Pocetni(BoxLayout):
    def calendar(self):
        Calendar().open()


class Calendar(Popup):
    td = datetime.datetime.today()
    day = td.day
    fdm = td.replace(day=1)
    d = "{:%w}"
    mg = "{:%B %Y}"
    month = StringProperty()
    change = ObjectProperty()
    days = ListProperty()
    first = NumericProperty()
    dani = ObjectProperty(None)

    def __init__(self, **kwargs):
        super(Calendar, self).__init__(**kwargs)
        self.month = str(self.mg.format(self.td))
        self.change = self.td

        self.update_days()

        self.first = self.d.format(self.fdm)

        self.draw_date()

    def update_days(self):
        for i in range(1, 32):
            prov = str(i)+'.'+str(self.change.month)+'.'+str(self.change.year)+'.'
            if i >= 28:
                try:
                    datetime.datetime.strptime(prov, "%d.%m.%Y.")
                    self.days.append(i)
                except ValueError:
                    pass
            else:
                self.days.append(i)

    def draw_date(self):
        if int(self.first) == 0:
            self.first = str(int(self.first) + 6)
        else:
            self.first = str(int(self.first) - 1)

        for i in range(int(self.first)):
            self.ids.dani.add_widget(Label(text=""))

        for j in self.days:
            if j == self.day and self.change.month == self.td.month and self.change.year == self.td.year:
                self.ids.dani.add_widget(Button(text=str(j), color=(1, 0, 0, 1),
                                                background_color=(1, 1, 1, .3),
                                                on_press=self.ispis))
            else:
                self.ids.dani.add_widget(Button(text=str(j),
                                                color=(0, 0, 0, 1),
                                                background_color=(1, 1, 1, .3)))

        self.days = []

    def next(self):
        self.ids.dani.clear_widgets()

        if self.change.month < 12:
            add = self.change.month + 1
            up = self.change.replace(month=add)
            self.change = up
            self.month = str(self.mg.format(up))
            self.fdm = self.change.replace(day=1)
            self.first = self.d.format(self.fdm)
            self.update_days()
            self.draw_date()
        else:
            start = self.change.month - 11
            new = self.change.year + 1
            up = self.change.replace(month=start, year=new)
            self.change = up
            self.month = str(self.mg.format(up))
            self.fdm = self.change.replace(day=1)
            self.first = self.d.format(self.fdm)
            self.update_days()
            self.draw_date()

    def previous(self):
        self.ids.dani.clear_widgets()

        if self.change.month > 1:
            add = self.change.month - 1
            up = self.change.replace(month=add)
            self.change = up
            self.month = str(self.mg.format(up))
            self.fdm = self.change.replace(day=1)
            self.first = self.d.format(self.fdm)
            self.update_days()
            self.draw_date()
        else:
            start = self.change.month + 11
            new = self.change.year - 1
            up = self.change.replace(month=start, year=new)
            self.change = up
            self.month = str(self.mg.format(up))
            self.fdm = self.change.replace(day=1)
            self.first = self.d.format(self.fdm)
            self.update_days()
            self.draw_date()

    def ispis(self, a):
        print(self.ids.dani.ids)
        print("Stiglo")


class CalendarApp(App):
    def build(self):
        return Pocetni()


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

Kv文件

<Datumi@Label>:
font_size: self.height / 4

<Date@Label>:
    color: 0, 0, 1, .8
    font_size: self.height / 2
    italic: True

<Calendar@Popup>:
    dani: dani
    title: "Calendar"
    title_size: '20sp'
    title_align: "center"
    separator_color: 1, 0, 0, 1
    size_hint: .9, .7
    auto_dismiss: False
    canvas.before:
        Color:
            rgba: 0, 0, 1, 1
        Rectangle:
            size: self.size
            pos: self.pos

    BoxLayout:
        orientation: "vertical"
        canvas.before:
            Color:
                rgba: 1, 1, 1, 1
            Rectangle:
                size: self.size
                pos: self.pos

        BoxLayout:
            size_hint_y: .15
            orientation: "horizontal"
            padding: 10
            canvas.before:
                Color:
                    rgba: .12, .54, .97, 1
                Rectangle:
                    size: self.size
                    pos: self.pos

            Label:
                font_size: self.height / 1.5
                size: self.texture_size
                text_size: self.size
                halign: "left"
                valign: "middle"
                text: root.month
                italic: True
                bold: True
            Button:
                size_hint_x: .2
                text: "back"
                on_press: root.previous()
            Button:
                size_hint_x: .2
                text: "next"
                on_press: root.next()

        BoxLayout:
            size_hint_y: .1
            orientation: "horizontal"
            Date:
                text: "Mon"
            Date:
                text: "Tue"
            Date:
                text: "Wed"
            Date:
                text: "Thu"
            Date:
                text: "Fri"
            Date:
                text: "Sat"
            Date:
                text: "Sun"

        GridLayout:
            id: dani
            cols: 7
            rows: 6

<Pocetni>:
    Button:
        text: "Poziv"
        on_press: root.calendar()

红色数字是当前日期

Red number is current day

Answer 1

一种方法是将on_press=self.ispis添加到每个按钮，而不仅仅是当前日期。

            self.ids.dani.add_widget(Button(text=str(j),
                                            color=(0, 0, 0, 1),
                                            background_color=(1, 1, 1, .3),
                                            on_press=self.ispis))

现在，如果您像这样更改ispis函数

def ispis(self, button):
    print(button.text)
    if button.color == [1, 0, 0, 1]:
        print("Stiglo")

您将获得按钮文字，并检查按下的当前日期...

如何在Kivy中访问动态创建的按钮的属性

Py文件

Kv文件

1 个答案: