在 Kivy Python 中将数组显示为表格

Question

我是 Kivy 的新手，遇到这个问题：我有两个数组

X=[[1,2,3],    and            Sum-Rows= [[6],
   [4,5,6],                              [15], 
   [7,8,9]]                              [24]]

如何在 Kivy Python 中将这些数组的元素显示为表格？

             first Value      Second Value      Third Value     Sum
first row        1                 2                 3           6
second row       4                 5                 6           15
third row        7                 8                 9           24

我认为 Recyclerview 可能是解决方案？ 谢谢

Answer 1

这是我的代码： main.py

from kivy.lang import Builder
from kivy.uix.label import Label
from kivy.properties import ObjectProperty, StringProperty
from kivy.uix.textinput import TextInput
from kivy.app import App
from kivy.core.window import Window
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.clock import Clock
from kivy.uix.gridlayout import GridLayout
import numpy as np




Window.clearcolor = (0.5, 0.5, 0.5, 1)

Builder.load_file('MyMain.kv')



class MainWindow(GridLayout):

    def __init__(self, **kwargs):
        super(MainWindow, self).__init__(**kwargs)
        Window.bind(on_key_down=self._on_keyboard_down)
        self.counter = 1
        Clock.schedule_once(self.add_stuff)

    def add_stuff(self, *args):
        self.textlist = [TextInput()]
        self.ids.grid.add_widget(Label(text='% Gas {} '.format(self.counter)))
        self.counter += 1
        self.ids.grid.add_widget(self.textlist[0])




    def addnewtextinput(self):
        self.ids.grid.add_widget(Label(text='% Gas  ' + str(self.counter)))
        self.counter += 1
        self.textlist.append(TextInput())
        self.ids.grid.add_widget(self.textlist[-1])


    def _on_keyboard_down(self, instance, keyboard, keycode, text, modifiers):
        if keyboard == 13:  # 32 - Cpace key presssed Ascii

            self.getresult()


        if keyboard == 9 : # 13 - Enter key presssed Ascii
            self.addnewtextinput()



        b = [i.text.strip().split(" ") for i in self.textlist]

        X = [[int(y) for y in x] for x in b]

        for i in range(len(X)-1):

)
            if (len(X[i]) < len(X[i+1])):
                for _ in range(len(X[i+1]) - len(X[i])):
                    X[i].append(0)

            if (len(X[i+1]) < len(X[i])):
                for _ in range(len(X[i]) - len(X[i+1])):
                    X[i+1].append(0)
            print(X[i])

        print(X) # this is the Dynamic Array






class TextInput(TextInput):
    def __init__(self, **kwargs):
        super(TextInput, self).__init__(**kwargs)

        def set_focus(dt):
            self.focus = True

        Clock.schedule_once(set_focus, .1)


class MyMainApp(App):
    def build(self):
        return MainWindow()


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

MyMain.kv

<CustButton@Button>:
    font_size: 40


    <MainWindow>:
        spacing : 10
        name: "erst"
        grid: grid.__self__
        rows:2
        cols:1
        GridLayout:
            orientation: "horizon"
            padding: 2
            id:grid
            cols:2








    <TextInputX>
        focus: True

列表 X 是动态列表 如何使用灵活的列和行进行动态 GridLayout？

Answer 2

MainWindow 本身就是 GridLayout ，为什么要在里面多加一个 GridLayout 呢？ 要动态更改它，您可以执行以下操作：

# if you are in MainWindow, which is GridLayout
self.clear_widgets()
# number of cols is length or your rows + 1 for sum
self.cols = len(X[0]) + 1
for i in range(len(X)):
    for j in X[i]:
        self.add_widget(Label(text=str(j))
    self.add_widget(Label(text=str(Sum-Rows[i][0])))

就是这样。