我正在使用kivy,并且正在尝试创建一个程序来帮助我记住超级saiyans转换。我希望按钮是图片而不是文字。这是我用来将按钮变成图片的代码:
self.Goku = Button(background_normal = '106-1060675_goku-base-form-png-clipart (1).png')
self.Goku.bind(on_press = self.SonGoku)
self.add_widget(self.Goku)
当我运行代码以查看其外观时,我看到其中一张图片是大图片,另一张是小图片。因此,我尝试通过添加大小=(“ 10,10”)来调整图片大小,但是没有用。我用size_hint尝试了相同的方法,但是结果相同。什么都没动。我查看了有关该按钮的一些文档,并向kivy添加了图片,但这并没有太大帮助。这是完整的代码:
import kivy
from kivy.app import App
from kivy.graphics import *
from kivy.uix.label import Label
from kivy.uix.image import Image
from kivy.uix.button import Button
from kivy.uix.widget import Widget
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.gridlayout import GridLayout
class main(GridLayout):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.cols = 4
self.Goku = Button(background_normal = '106-1060675_goku-base-form-png-clipart (1).png', size_hint = (1, 0.5))
self.Goku.bind(on_press = self.SonGoku)
self.add_widget(self.Goku)
self.Vegeta = Button(background_normal = 'vegeta-png-clip-art.png', size_hint = (1, 1))
self.Vegeta.bind(on_press = self.PrinceVegeta)
self.add_widget(self.Vegeta)
def SonGoku(self, instance):
self.cols = 1
self.remove_widget(self.Goku)
self.remove_widget(self.Vegeta)
self.NormalGoku = Button(text = "Base form")
self.add_widget(self.NormalGoku)
self.SSJGoku = Button(text = "Super saiyan")
self.add_widget(self.SSJGoku)
self.SSJ2Goku = Button(text = "Super saiyan 2")
self.add_widget(self.SSJ2Goku)
def PrinceVegeta(self, instance):
self.cols = 1
self.remove_widget(self.Goku)
self.remove_widget(self.Vegeta)
self.NormalVegeta = Button(text = "Base form")
self.add_widget(self.NormalVegeta)
self.SSJVegeta = Button(text = "Super saiyan")
self.add_widget(self.SSJVegeta)
self.SSJ2Vegeta = Button(text = "Super saiyan 2")
self.add_widget(self.SSJ2Vegeta)
class Saiyan(App):
def build(self):
return main()
if __name__ == "__main__":
Saiyan().run()
我们将不胜感激。随时问任何问题。预先感谢。
答案 0 :(得分:1)
一种实现方法是在按钮画布上绘制图像。属性“ allow_stretch”和“ keep_ratio”用于填充整个按钮大小。
from kivy.uix.image import Image
然后:
self.Goku = Button(size_hint=(None, None), size=(120,120))
with self.Goku.canvas:
Image(source='vegeta-png-clip-art.png', size=self.Goku.size, pos=self.Goku.pos, allow_stretch=True, keep_ratio=False)
self.add_widget(self.Goku)
如果您没有为按钮明确设置大小,则需要将size属性绑定到方法以调整图像大小。
示例:
class main(GridLayout):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.cols = 4
self.Goku = Button()
with self.Goku.canvas:
self.Goku_img = Image(source='vegeta-png-clip-art.png', size=self.Goku.size, pos=self.Goku.pos, allow_stretch=True, keep_ratio=False)
self.Goku.bind(size=self.adjust_size)
self.add_widget(self.Goku)
...
def adjust_size(self, instance, value):
self.Goku_img.size = value
我希望这是适合您的方法。