我正在使用 python-2.7 和 kivy 1.10.0 。我正在使用添加动态行 +Add More 按钮
我正在使用 on_text 事件进入每个动态 TextInput 有人能帮我数数吗 dynamic 一行 on\u文本 事件
在此图像中,您可以看到 2 rows .当我输入任何 文本输入框 然后 on\u文本 事件调用。此时如何计算总行数?

测验py公司

from kivy.uix.screenmanager import Screen
from kivy.app import App
from kivy.lang import Builder
from kivy.core.window import Window
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import StringProperty

Window.size = (450, 525)


class display(Screen):

    def add_more(self):
        self.ids.rows.add_row()


class Row(BoxLayout):
    button_text = StringProperty("")

    def count_row(self):
        print('count row')


class Rows(BoxLayout):
    orientation = "vertical"
    row_count = 0

    def __init__(self, **kwargs):
        super(Rows, self).__init__(**kwargs)
        self.add_row()

    def add_row(self):
        self.row_count += 1
        self.add_widget(Row(button_text=str(self.row_count)))


class test(App):

    def build(self):
        #self.root = Builder.load_string(KV)
        return self.root


test().run()

测验千伏

<Row>:
    orientation: "horizontal"
    spacing: 0, 5

    Button:
        text: root.button_text
        size_hint_x: .2

    TextInput:
        size_hint_x: .8
        on_text: root.count_row()


display:

    BoxLayout:
        orientation: "vertical"
        padding : 20, 20

        BoxLayout:
            orientation: "horizontal"

            Button:
                size_hint_x: .2
                text: "+Add More"
                valign: 'bottom'
                on_press: root.add_more()


        BoxLayout:
            orientation: "horizontal"


        Rows:
            id: rows