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- def event_cb(e):
- # The original target of the event. Can be the buttons or the container
- target = e.get_target()
- # print(type(target))
- # If container was clicked do nothing
- if type(target) != type(lv.btn()):
- return
- # Make the clicked buttons red
- target.set_style_bg_color(lv.palette_main(lv.PALETTE.RED), 0)
- #
- # Demonstrate event bubbling
- #
- cont = lv.obj(lv.scr_act())
- cont.set_size(320, 200)
- cont.center()
- cont.set_flex_flow(lv.FLEX_FLOW.ROW_WRAP)
- for i in range(30):
- btn = lv.btn(cont)
- btn.set_size(80, 50)
- btn.add_flag(lv.obj.FLAG.EVENT_BUBBLE)
- label = lv.label(btn)
- label.set_text(str(i))
- label.center()
- cont.add_event_cb(event_cb, lv.EVENT.CLICKED, None)
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