问题描述
ActionBar 中的图像重叠Toolbar.(工具栏是
你应该调用 add_widget() 和 remove_widget() 而不是从 self (这是您的 ActionButton)，但来自层次结构中较高的对象.您可以存储对 ActionBar 父级的引用或仅使用 Window 对象本身:
from kivy.core.window 导入窗口# ...类 MyActionButton(ActionButton):# ...def close_tooltip(self, *args):Window.remove_widget(self.tooltip)def display_tooltip(self, *args):Window.add_widget(self.tooltip)请注意，这可能会更改工具提示小部件的计算大小.
我更新了参考答案.
Images in ActionBar overlap Toolbar. (Toolbar is Bubble with Label)
My code is based on this answer.
Example for ActionBar button:
TooltipButton:
icon: 'images/32/quit.png'
text: _('Quit')
on_press: quit()
TooltipButton class:
class TooltipButton(ActionButton):
tooltip = Tooltip()
def __init__(self, **kwargs):
Window.bind(mouse_pos=self.on_mouse_pos)
super(ActionButton, self).__init__(**kwargs)
def on_mouse_pos(self, *args):
if not self.get_root_window():
return
pos = args[1]
self.tooltip.pos = pos
Clock.unschedule(self.display_tooltip) # cancel scheduled event since I moved the cursor
self.close_tooltip() # close if it's opened
if self.collide_point(*self.to_widget(*pos)):
Clock.schedule_once(self.display_tooltip, 1)
def close_tooltip(self, *args):
self.remove_widget(self.tooltip)
def display_tooltip(self, *args):
self.tooltip.tip.text = self.text
self.add_widget(self.tooltip)
Tooltip rule (superclass is Bubble):
<Tooltip>:
tip: tip
Label:
id: tip
text_size: self.size
halign: 'center'
text: 'Tip'
You should call add_widget() and remove_widget() not from self (which is your ActionButton) but from an object that is higher in the hierarchy. You can store a reference to a parent of ActionBar or just use Window object itself:
from kivy.core.window import Window
# ...
class MyActionButton(ActionButton):
# ...
def close_tooltip(self, *args):
Window.remove_widget(self.tooltip)
def display_tooltip(self, *args):
Window.add_widget(self.tooltip)
Note that this will probably change the computed size of your tooltip widget.
I updated referenced answer.
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