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35 lines
837 B
Python
35 lines
837 B
Python
def event_cb(e):
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# The original target of the event. Can be the buttons or the container
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target = e.get_target_obj()
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# The current target is always the container as the event is added to it
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cont = e.get_current_target_obj()
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# If container was clicked do nothing
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if target == cont:
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return
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# Make the clicked buttons red
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target.set_style_bg_color(lv.palette_main(lv.PALETTE.RED), 0)
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#
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# Demonstrate event bubbling
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#
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cont = lv.obj(lv.screen_active())
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cont.set_size(290, 200)
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cont.center()
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cont.set_flex_flow(lv.FLEX_FLOW.ROW_WRAP)
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for i in range(30):
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button = lv.button(cont)
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button.set_size(70, 50)
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button.add_flag(lv.obj.FLAG.EVENT_BUBBLE)
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label = lv.label(button)
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label.set_text("{:d}".format(i))
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label.center()
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cont.add_event_cb(event_cb, lv.EVENT.CLICKED, None)
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