Question

如何向Kivy TreeView添加一个复选框和每个孩子可编辑的文本。

Answer 1

TreeView的{{3}}涉及如何执行此操作，但没有提供太多细节。这是一种方法：

from kivy.app import App
from kivy.metrics import dp
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.checkbox import CheckBox
from kivy.uix.label import Label
from kivy.uix.textinput import TextInput
from kivy.uix.treeview import TreeView, TreeViewNode


class MyNode(BoxLayout):

    def __init__(self, **kwargs):
        text = kwargs.pop('text', 'None')
        super(MyNode, self).__init__(**kwargs)
        self.orientation = 'horizontal'

        # make height reasonable
        self.size_hint_y = None
        self.height = dp(25)

        # make the parts of the node
        self.lbl = Label(text=text, size_hint_x=0.2)
        self.chkbx = CheckBox(size_hint_x=0.1, color=(1, 1, 1, 3.5))  # alpha=3.5 to make it more visible
        self.txtinpt = TextInput(multiline=False, font_size=15, padding=[6, 3, 6, 0])

        # add the parts to the BoxLayout
        self.add_widget(self.lbl)
        self.add_widget(self.chkbx)
        self.add_widget(self.txtinpt)


class MyTreeNode(MyNode, TreeViewNode):
    pass


class MyTreeView(TreeView):
    def __init__(self):
        super(MyTreeView, self).__init__()
        self.add_node(MyTreeNode(text='node 1'))
        node2 = self.add_node(MyTreeNode(text='node 2'))
        self.add_node(MyTreeNode(text='node 3'), node2)
        self.add_node(MyTreeNode(text='node 4'), node2)


class TreeViewApp(App):
    def build(self):
        return MyTreeView()


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

带有复选框和可编辑文本的Kivy TreeView

1 个答案: