mirror of
https://github.com/lvgl/lvgl.git
synced 2025-01-14 06:42:58 +08:00
38 lines
669 B
Python
38 lines
669 B
Python
#
|
|
# An `lv_timer` to call periodically to set the angles of the arc
|
|
#
|
|
class ArcLoader():
|
|
def __init__(self):
|
|
self.a = 270
|
|
|
|
def arc_loader_cb(self,tim,arc):
|
|
# print(tim,arc)
|
|
self.a += 5
|
|
|
|
arc.set_end_angle(self.a)
|
|
|
|
if self.a >= 270 + 360:
|
|
tim._del()
|
|
|
|
|
|
#
|
|
# Create an arc which acts as a loader.
|
|
#
|
|
|
|
# Create an Arc
|
|
arc = lv.arc(lv.scr_act())
|
|
arc.set_bg_angles(0, 360)
|
|
arc.set_angles(270, 270)
|
|
arc.center()
|
|
|
|
# create the loader
|
|
arc_loader = ArcLoader()
|
|
|
|
# Create an `lv_timer` to update the arc.
|
|
|
|
timer = lv.timer_create_basic()
|
|
timer.set_period(20)
|
|
timer.set_cb(lambda src: arc_loader.arc_loader_cb(timer,arc))
|
|
|
|
|