38 lines
679 B
Python
38 lines
679 B
Python
#
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# An `lv_timer` to call periodically to set the angles of the arc
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#
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class ArcLoader():
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def __init__(self):
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self.a = 270
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def arc_loader_cb(self,tim,arc):
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# print(tim,arc)
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self.a += 5
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arc.set_end_angle(self.a)
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if self.a >= 270 + 360:
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tim._del()
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#
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# Create an arc which acts as a loader.
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#
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# Create an Arc
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arc = lv.arc(lv.scr_act())
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arc.set_bg_angles(0, 360)
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arc.set_angles(270, 270)
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arc.center()
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# create the loader
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arc_loader = ArcLoader()
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# Create an `lv_timer` to update the arc.
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timer = lv.timer_create_basic()
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timer.set_period(20)
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timer.set_cb(lambda src: arc_loader.arc_loader_cb(timer,arc))
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