[英]Overlapping of custom Widget in ScrollView GridLayout in Kivy
[英]Kivy - Add widget(Splitter) to a GridLayout
我试图将给定的图片放在可以滚动的网格布局中,当我选择图片时,图片的颜色会发生变化,这是我的代码:
CONTAINER_PNG = os.path.join(AllImage_ROOT, 'images')
IMAGES_NAMES = [c[:-4] for c in os.listdir(CONTAINER_PNG)]
LIST_IM = os.listdir(CONTAINER_PNG)
class ImageButton(ButtonBehavior, Image):
pass
类AllImage(BoxLayout):
# screen_manager = ObjectProperty()
def __init__(self, **kwargs):
BoxLayout.__init__(self, **kwargs)
self.orientation='vertical'
splitter = Splitter(sizable_from = 'bottom')
root = ScrollView()
layout = GridLayout(cols=4, spacing=10)
layout2 = GridLayout(cols=4, spacing=10)
button = ImageButton(source = 'mix.png')
layout2.add_widget(button)
self.add_widget(layout2)
for im in IMAGES_NAMES:
if IMAGES_NAMES != None :
btn = ImageButton(source = im+'.png')
btn.bind(on_press= lambda a:layout.add_widget( ToggleButton(text = 'work') ))
btn.bind(on_press= lambda b:self.background_color(1,1,1))
layout.add_widget(btn)
layout2.add_widget(splitter)
root.add_widget(layout)
self.add_widget(root)
TryApp(App)类:
def build(self):
return AllImage()
def on_pause(self):
return True
if __name__ == "__main__":
TryApp().run()
我知道我做错了,所以我有几个问题:
1-为什么当我在我的2个网格之间添加拆分器时它不起作用(拆分器不可见)
2-如何更改ImageButton的颜色?
3-滚动视图在我的GridLayout上不起作用,如何自定义可以大于窗口的Grid。
感谢您的时间 :)
kivy试图通过将UI与逻辑分离来简化事情。.与kivy文档说,您必须停用孩子的至少size_hint指令之一(x或y)才能启用滚动。
<AllImage>: orientation:'vertical' ScrollView: do_scroll_x:False GridLayout: cols:4 spacing:10 size_hint_y:None height: 8*dp(80)
为了清楚起见,请尝试在kv文件中实现UI内容,以使内容更易于阅读。
btn.bind(on_release= lambda a:layout.add_widget( ToggleButton(text = 'work') ))
btn.bind(on_press= lambda b:self.background_color(1,1,1))
我不认为on_press可以同时处理两种方法,所以尝试一下
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