1def event_handler(e):
2    code = e.get_code()
3    obj = e.get_target()
4    if code == lv.EVENT.VALUE_CHANGED:
5        txt = obj.get_text()
6        if obj.get_state() & lv.STATE.CHECKED:
7            state = "Checked"
8        else:
9            state = "Unchecked"
10        print(txt + ":" + state)
11
12
13lv.scr_act().set_flex_flow(lv.FLEX_FLOW.COLUMN)
14lv.scr_act().set_flex_align(lv.FLEX_ALIGN.CENTER, lv.FLEX_ALIGN.START, lv.FLEX_ALIGN.CENTER)
15
16cb = lv.checkbox(lv.scr_act())
17cb.set_text("Apple")
18cb.add_event_cb(event_handler, lv.EVENT.ALL, None)
19
20cb = lv.checkbox(lv.scr_act())
21cb.set_text("Banana")
22cb.add_state(lv.STATE.CHECKED)
23cb.add_event_cb(event_handler, lv.EVENT.ALL, None)
24
25cb = lv.checkbox(lv.scr_act())
26cb.set_text("Lemon")
27cb.add_state(lv.STATE.DISABLED)
28cb.add_event_cb(event_handler, lv.EVENT.ALL, None)
29
30cb = lv.checkbox(lv.scr_act())
31cb.add_state(lv.STATE.CHECKED | lv.STATE.DISABLED)
32cb.set_text("Melon")
33cb.add_event_cb(event_handler, lv.EVENT.ALL, None)
34
35cb.update_layout()
36
37