我在下面有一个简单的问题示例。我有三个类MyLayout(根),弹出一个弹出类和MyBox,这是一个通过单击MyLayout中的按钮动态创建的Boxlayout。我已经在与弹出字段一起使用的根目录中创建了capitalise()函数。我的问题是与MyBox实例的交互。例如,弹出窗口如何才能知道哪个MyBox调用了它,并将名字和姓氏返回到适当的TextInput框中?
如果我想整理所有MyBox实例中TextInput框中的所有数据,我该怎么做。我假设使用属性。
预先感谢
String
答案 0 :(得分:0)
您想要的主要事情是将“创建者”框的引用传递给“创建的”弹出窗口。您可以通过在创建时间on_press: Factory.Pop(root).open()
此处提供完整的工作代码:
Builder.load_string('''
#:import Factory kivy.factory.Factory
<MyBox>:
orientation:'vertical'
TextInput:
text: root.box_text # bind the text to the box_text
Button:
text: 'Choose a name'
on_press: Factory.Pop(root).open() # pass the creator of the pop here
<Pop>:
auto_dismiss: False
title: 'Names'
size_hint: [0.4, 0.5]
pos_hint:{'right': 0.4, 'top': 1}
id: msg_box
GridLayout:
id: _pop
rows: 3
GridLayout:
id: pop_grid
cols:2
padding: [0,5]
Spinner:
text: 'First Name'
id: fn
sync_height: True
values: ['andrew', 'brian', 'colin', 'david', 'edmond']
width: self.width
on_text: self.text = app.root.capitalise(self.text)
Spinner:
text: 'Last Name'
id: ln
sync_height: True
values: ['Adams', 'Bass', 'Carney', 'Davies', 'Edmonds']
width: self.width
Button:
padding: [0,5]
text: 'OK'
on_release:
root.creator.box_text = "{} {}".format(fn.text, ln.text) # use the creator reference
root.dismiss()
width: self.width
<MyLayout>:
orientation: 'tb-lr'
size_hint: .2, 0.5
width: self.width
Button:
text: 'Create name box.'
on_press: app.root.make_name_box()
width: 300
''')
class MyLayout(StackLayout):
pass
def make_name_box(self):
self.add_widget(MyBox())
def capitalise(self, text):
return text.capitalize()
class Pop(Popup):
def __init__(self, creator, **kwargs):
super(Pop, self).__init__(**kwargs)
self.creator = creator # keep a reference to the creator here
class MyBox(BoxLayout):
box_text = StringProperty("N/A")
def __init__(self, **kwargs):
super(MyBox, self).__init__(**kwargs)
size_hint = None, None
width = 300
class PopperApp(App):
def build(self):
self.my_layout = MyLayout()
return self.my_layout
def on_stop(self): # print the names when leaving the app
boxes = self.my_layout.children[:-1]
print([i.box_text for i in boxes])
if __name__ == '__main__':
PopperApp().run()
编辑:关于第二个问题,我在关闭应用程序时添加了名称打印。