替换按钮的Kivy可点击图片

问题描述

寻找一种使用图像的方法，而不是传统的带有纽扣的按钮.
我尝试使用 background_disabled_normal 和 background_disabled_down
这是我的.kv文件中的按钮部分:

Looking for a way to use an image instead of a conventional button with kivy.
I try to use background_disabled_normal and background_disabled_down
This is my button part in my .kv file:

Button:
    on_press: root.do_action()
    background_disabled_normal: str(False)
    Image:
        source: 'icon.png'
        y: self.parent.y + self.parent.height - 250
        x: self.parent.x
        size: 250, 250
        allow_stretch: True

但是不行

推荐答案

background_disabled_normal: str(False)

这应该是图像的文件路径，而不是布尔值的字符串.另外，当按钮的disable属性为True时，这是背景的属性-您确定不想要background_normal吗?

This should be a filepath to an image, not a string of a boolean. Also, this is the property for the background when the button's disabled property is True - are you sure you don't want background_normal?

还有另一种方法可以适合您；该按钮的内容被抽象为ButtonBehavior，可以与任何小部件组合.

There is another way to do this anyway that may suit you; the button stuff is abstracted as ButtonBehavior that may be combined with any widget.

from kivy.uix.behaviors import ButtonBehavior
from kivy.uix.image import Image

class ImageButton(ButtonBehavior, Image):
    pass

此ImageButton将具有图像的所有属性(您可以设置源)和按钮的所有事件(on_press等).

This ImageButton will have all the properties of an image (you can set the source) and all the events of a button (on_press etc).

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