Python Kivy：如何改变窗口大小？
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Kivy: How to change window size?
提问by Bakuriu
I'm starting to write a program using kivy, but I have some problems understand how it deals with sizes.
我开始使用 编写程序kivy，但我在理解它如何处理大小方面存在一些问题。
For example:
例如：
import kivy
kivy.require('1.5.1')
from kivy.app import App
from kivy.uix.button import Button
class MyApp(App):
def build(self): return Button(text='Some text')
MyApp().run()
The above program works, but it creates a hugewindow. Trying to set size=(100, 100)does not change anything. Setting size_hint=(None, None)will show a button with the correct size, but it is placed randomly inside a stillhuge window.
Trying to set the size of MyAppdoes not change anything too.
上面的程序可以工作，但它创建了一个巨大的窗口。尝试设置size=(100, 100)不会改变任何东西。设置size_hint=(None, None)将显示一个大小正确的按钮，但它随机放置在一个仍然很大的窗口中。尝试设置 的大小MyApp也不会改变任何东西。
How do I create a window with the same size of the button? It should be a simple enough task, but looking at the documentation and example I can't find anything about this.
如何创建与按钮大小相同的窗口？这应该是一个足够简单的任务，但是查看文档和示例我找不到任何关于此的信息。
回答by martin
There're currently two ways:
目前有两种方式：
Before the window is created:
import kivy kivy.require('1.9.0') from kivy.config import Config Config.set('graphics', 'width', '200') Config.set('graphics', 'height', '200')Dynamically after the Window was created:
from kivy.core.window import Window Window.size = (300, 100)
在创建窗口之前：
import kivy kivy.require('1.9.0') from kivy.config import Config Config.set('graphics', 'width', '200') Config.set('graphics', 'height', '200')创建窗口后动态：
from kivy.core.window import Window Window.size = (300, 100)
回答by Aaron Bell
I would comment on martin's answer, but I don't have the reputation. When setting the config file, be sure to "write" your changes:
我会对马丁的回答发表评论，但我没有声誉。设置配置文件时，请务必“写入”您的更改：
from kivy.config import Config
Config.set('graphics', 'width', '200')
Config.set('graphics', 'height', '200')
Config.write()
It's exactly like committing info to a database, if you know anything about that.
如果您对此有所了解，这就像将信息提交到数据库一样。
回答by SagitSri
Use this:
用这个：
from kivy.core.window import Window
Window.size = (300, 100)
If you use
如果你使用
from kivy.config import Config
Config.set('graphics', 'width', '200')
Config.set('graphics', 'height', '200')
Config.write()
this will lead to loss of default screen size! Default screen size is really useful.
这将导致默认屏幕尺寸丢失！默认屏幕尺寸非常有用。
