問題描述
我正在嘗試通過實現
問:如何配置 drawingspace.kv 以使每個按下的按鈕具有不同的布局和不同的小部件?
一個巧妙的方法是使用屏幕.
由于我已經從您之前的問題中獲得了此應用程序的示例，因此很容易實現屏幕，并稍微重寫類.
當按下按鈕時，您將屏幕管理器的當前設置為您想要的屏幕名稱.
然后您只需在每個屏幕、kv 文件或 python 文件中根據需要編輯布局.
我選擇在這里用 kv 語言制作大部分布局內容.因為我發現以我想要的方式開發布局更容易.以后如果我愿意，我可以將它重寫為 python.
所以我的 python 文件現在看起來像這樣:
從 kivy.app 導入 App從 kivy.uix.boxlayout 導入 BoxLayout從 kivy.properties 導入 StringProperty從 kivy.clock 導入時鐘從 kivy.uix.screenmanager 導入 Screen,ScreenManager,NoTransition從 kivy.lang 導入生成器進口時間builder.load_file("kv.kv")類 MyLayout(BoxLayout):def __init__(self,**kwargs):super(MyLayout,self).__init__(**kwargs)self.orientation = "垂直"self.padding = 10類 MainScreen(屏幕):經過類刪除屏幕(屏幕):經過類 GroupScreen(屏幕):經過MyLogo 類(BoxLayout):your_time = StringProperty()def __init__(self,**kwargs):super(MyLogo,self).__init__(**kwargs)Clock.schedule_interval(self.set_time, 0.1)def set_time(self,dt):self.your_time = time.strftime("%m/%d/%Y %H:%M")我的應用程序(應用程序)類:def __init__(self,**kwargs):super(MyApp,self).__init__(**kwargs)self.sm = ScreenManager(transition=NoTransition())self.sm.add_widget(MainScreen(name = "main"))self.sm.add_widget(RemoveScreen(name = "remove"))self.sm.add_widget(GroupScreen(name = "group"))self.sm.current = "主要"定義構建(自我):返回自我.sm如果 __name__ == "__main__":MyApp().run()而 kv.kv 文件看起來像這樣:
#:kivy 1.9.1<MyButtons@BoxLayout>:填充:10,10,10,0間距:10大小提示:1,0.3方向:水平"按鈕:文字:清除"on_press: app.sm.current = "main"按鈕:文字:刪除"on_press: app.sm.current = "刪除"按鈕:文字:組"on_press: app.sm.current = "組"按鈕:文字:顏色"按鈕:文字:手勢"<我的標志>:間距:10填充:10,10,10,0方向:水平"盒子布局:方向:垂直"大小提示:0.3,1帆布:長方形:pos: self.pos尺寸:self.size異步圖像來源:'http://lmsotfy.com/so.png'標簽:大小提示:1,0.3文本:root.your_time顏色:[0,0,0,1]標簽:大小提示:1,0.3文本:紐約市，紐約，美國"顏色:[0,0,0,1]<主屏幕>:我的布局:我的標志:#按鈕:# 文本:主要"我的按鈕:#紐扣盒子布局:填充:10,10,10,10大小提示:1,0.3按鈕:文本:總數:1 Kivy Started"<刪除屏幕>:我的布局:我的標志:盒子布局:方向:水平"標簽:字體大小:40sp"文字:刪除"按鈕:字體大小:20sp"文字:刪除這個或其他東西"我的按鈕:#紐扣盒子布局:填充:10,10,10,10大小提示:1,0.3按鈕:文本:總數:1 Kivy Started"<組畫面>:我的布局:我的標志:盒子布局:方向:垂直"標簽:字體大小:40sp"文字:組"按鈕:字體大小:20sp"文本:某些東西分組"我的按鈕:#紐扣盒子布局:填充:10,10,10,10大小提示:1,0.3按鈕:文本:總數:1 Kivy Started"I am trying create a GUI by implementing the template of the ComicCreator GUI sample as a template for my own project. The code is easy to follow, but I would like to be able to reconfigure the drawingspace.kv, each time a button is pushed, say for example something like this:
Q: How could I configure the drawingspace.kv to have a different layout with different widgets for each button that is pressed?
A neat way to do this is to use screen.
Since I allready have an example of this app from you earlier question, it was easy to implement the screens, and rewrite the classes a bit.
When a button is pressed, you set the screenmanager's current to whatever the name you named the screen you want.
Then you just edit the layouts as you want inside of each screen, in the kv file, or python file.
I choose to make most of the layout stuff in kv language here. Because I find it easier to develop a layout the way I want it this way. Later I could rewrite it to python if I want that.
So my python file looks like this now:
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import StringProperty
from kivy.clock import Clock
from kivy.uix.screenmanager import Screen,ScreenManager,NoTransition
from kivy.lang import Builder
import time
Builder.load_file("kv.kv")
class MyLayout(BoxLayout):
def __init__(self,**kwargs):
super(MyLayout,self).__init__(**kwargs)
self.orientation = "vertical"
self.padding = 10
class MainScreen(Screen):
pass
class RemoveScreen(Screen):
pass
class GroupScreen(Screen):
pass
class MyLogo(BoxLayout):
your_time = StringProperty()
def __init__(self,**kwargs):
super(MyLogo,self).__init__(**kwargs)
Clock.schedule_interval(self.set_time, 0.1)
def set_time(self,dt):
self.your_time = time.strftime("%m/%d/%Y %H:%M")
class MyApp(App):
def __init__(self,**kwargs):
super(MyApp,self).__init__(**kwargs)
self.sm = ScreenManager(transition=NoTransition())
self.sm.add_widget(MainScreen(name = "main"))
self.sm.add_widget(RemoveScreen(name = "remove"))
self.sm.add_widget(GroupScreen(name = "group"))
self.sm.current = "main"
def build(self):
return self.sm
if __name__ == "__main__":
MyApp().run()
And kv.kv file looks like this:
#:kivy 1.9.1
<MyButtons@BoxLayout>:
padding: 10,10,10,0
spacing: 10
size_hint: 1,0.3
orientation: "horizontal"
Button:
text: "Clear"
on_press: app.sm.current = "main"
Button:
text: "Remove"
on_press: app.sm.current = "remove"
Button:
text: "Group"
on_press: app.sm.current = "group"
Button:
text: "Color"
Button:
text: "Gestures"
<MyLogo>:
spacing: 10
padding: 10,10,10,0
orientation: "horizontal"
BoxLayout:
orientation: "vertical"
size_hint: 0.3,1
canvas:
Rectangle:
pos: self.pos
size: self.size
AsyncImage
source: 'http://lmsotfy.com/so.png'
Label:
size_hint: 1,0.3
text: root.your_time
color: [0,0,0,1]
Label:
size_hint: 1,0.3
text: "NYC, New York, USA"
color: [0,0,0,1]
<MainScreen>:
MyLayout:
MyLogo:
#Button:
# text: "main"
MyButtons:
#buttons
BoxLayout:
padding: 10,10,10,10
size_hint: 1,0.3
Button:
text: "Total figures: 1 Kivy Started"
<RemoveScreen>:
MyLayout:
MyLogo:
BoxLayout:
orientation: "horizontal"
Label:
font_size: "40sp"
text: "Remove"
Button:
font_size: "20sp"
text: "Remove this or something"
MyButtons:
#buttons
BoxLayout:
padding: 10,10,10,10
size_hint: 1,0.3
Button:
text: "Total figures: 1 Kivy Started"
<GroupScreen>:
MyLayout:
MyLogo:
BoxLayout:
orientation: "vertical"
Label:
font_size: "40sp"
text: "Group"
Button:
font_size: "20sp"
text: "Something groups stuff"
MyButtons:
#buttons
BoxLayout:
padding: 10,10,10,10
size_hint: 1,0.3
Button:
text: "Total figures: 1 Kivy Started"
這篇關于用kivy按下按鈕時如何更改空格?的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！