mirror of
https://github.com/lvgl/lvgl.git
synced 2025-02-04 07:13:00 +08:00
30 lines
1.1 KiB
Python
30 lines
1.1 KiB
Python
class CounterBtn():
|
|
def __init__(self):
|
|
self.cnt = 0
|
|
#
|
|
# Create a button with a label and react on click event.
|
|
#
|
|
|
|
btn = lv.btn(lv.scr_act()) # Add a button the current screen
|
|
btn.set_pos(10, 10) # Set its position
|
|
btn.set_size(120, 50) # Set its size
|
|
btn.align(lv.ALIGN.CENTER,0,0)
|
|
btn.add_event(self.btn_event_cb, lv.EVENT.ALL, None) # Assign a callback to the button
|
|
label = lv.label(btn) # Add a label to the button
|
|
label.set_text("Button") # Set the labels text
|
|
label.center()
|
|
|
|
def btn_event_cb(self,e):
|
|
code = e.get_code()
|
|
btn = e.get_target_obj()
|
|
if code == lv.EVENT.CLICKED:
|
|
self.cnt += 1
|
|
|
|
# Get the first child of the button which is the label and change its text
|
|
label = btn.get_child(0)
|
|
label.set_text("Button: " + str(self.cnt))
|
|
|
|
|
|
counterBtn = CounterBtn()
|
|
|