【发布时间】:2017-11-06 00:42:34
【问题描述】:
我试图创建一个具有一组根规则的单屏应用程序。通过按下一个按钮,我应该在按钮旁边的网格中看到一个可滚动的文本。在所有示例解决方案中,我看到滚动视图在我在其他问题中看到的类似 KV 文件中工作。有人可以找出我在 KV 文件中遗漏的内容。
我的 .py 文件:
import kivy
import string
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.gridlayout import GridLayout
from kivy.properties import ObjectProperty
from kivy.properties import StringProperty
from kivy.uix.scrollview import ScrollView
from kivy.core.window import Window
class RootContainer(BoxLayout):
instance = ObjectProperty(None)
def __init__(self, **kwargs):
super(RootContainer, self).__init__(**kwargs)
def clickAction1(self, instance):
#identify the button pressed
buttonText = instance.text
self.lbl1.text = instance.text + " some text goes here ... "
myresult = " this is scrolling text.\n " * 30
self.lbl5.text = myresult
class MBApp(App):
def build(self):
return RootContainer()
if __name__ == '__main__':
MBApp().run()
我的 KV 文件:
#:kivy 1.0.9
<RootContainer>:
id: theRoot
lbl1: my_labelC
lbl5: my_labelCS
BoxLayout:
orientation: 'vertical'
spacing: 20
padding: 20
canvas:
Color:
rgb: 0, .33, 0
Rectangle:
pos: self.pos
size: self.size
Button:
text: "This is 1st button"
text_size: self.size
size_hint: (.5,1)
on_press: theRoot.clickAction1(self)
Button:
text: "This is 2nd button"
text_size: self.size
size_hint: (.5,1)
on_press: root.clickAction1(self)
GridLayout:
rows: 2
cols: 1
spacing: 10
padding: 10
canvas:
Color:
rgb: .7, .63, 0
Rectangle:
pos: self.pos
size: self.size
Label:
id: my_labelC
canvas.before:
Color:
rgb: 0,0,0
Rectangle:
pos: self.pos
size: self.size
text: "Header text for button clicked ......."
text_size: self.size
ScrollView:
GridLayout:
cols:1
rows:1
height: self.minimum_height
Label:
id: my_labelCS
text: "Scrolling text goes here ....."
我希望这不是重复的。也欢迎任何其他代码建议。谢谢。
【问题讨论】:
标签: python kivy kivy-language