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ndg/examples/scroll/lv_example_scroll_3.py

39 lines
1.2 KiB
Python

class ScrollExample_3():
def __init__(self):
self.btn_cnt = 1
#
# Create a list with a floating button
#
list = lv.list(lv.scr_act())
list.set_size(280, 220)
list.center()
for btn_cnt in range(2):
list.add_btn(lv.SYMBOL.AUDIO,"Track {:d}".format(btn_cnt))
float_btn = lv.btn(list)
float_btn.set_size(50, 50)
float_btn.add_flag(lv.obj.FLAG.FLOATING)
float_btn.align(lv.ALIGN.BOTTOM_RIGHT, 0, -list.get_style_pad_right(lv.PART.MAIN))
float_btn.add_event_cb(lambda evt: self.float_btn_event_cb(evt,list), lv.EVENT.ALL, None)
float_btn.set_style_radius(lv.RADIUS.CIRCLE, 0)
float_btn.set_style_bg_img_src(lv.SYMBOL.PLUS, 0)
float_btn.set_style_text_font(lv.theme_get_font_large(float_btn), 0)
def float_btn_event_cb(self,e,list):
code = e.get_code()
float_btn = e.get_target()
if code == lv.EVENT.CLICKED:
list_btn = list.add_btn(lv.SYMBOL.AUDIO, "Track {:d}".format(self.btn_cnt))
self.btn_cnt += 1
float_btn.move_foreground()
list_btn.scroll_to_view(lv.ANIM.ON)
scroll_example_3 = ScrollExample_3()