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- def anim_x_cb(label, v):
- label.set_x(v)
- def sw_event_cb(e,label):
- sw = e.get_target()
- if sw.has_state(lv.STATE.CHECKED):
- a = lv.anim_t()
- a.init()
- a.set_var(label)
- a.set_values(label.get_x(), 100)
- a.set_time(500)
- a.set_path_cb(lv.anim_t.path_overshoot)
- a.set_custom_exec_cb(lambda a,val: anim_x_cb(label,val))
- lv.anim_t.start(a)
- else:
- a = lv.anim_t()
- a.init()
- a.set_var(label)
- a.set_values(label.get_x(), -label.get_width())
- a.set_time(500)
- a.set_path_cb(lv.anim_t.path_ease_in)
- a.set_custom_exec_cb(lambda a,val: anim_x_cb(label,val))
- lv.anim_t.start(a)
- #
- # Start animation on an event
- #
- label = lv.label(lv.scr_act())
- label.set_text("Hello animations!")
- label.set_pos(100, 10)
- sw = lv.switch(lv.scr_act())
- sw.center()
- sw.add_state(lv.STATE.CHECKED)
- sw.add_event_cb(lambda e: sw_event_cb(e,label), lv.EVENT.VALUE_CHANGED, None)
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