-
-
Save gottadiveintopython/d8669d98bd84dd0394d52ac451e60088 to your computer and use it in GitHub Desktop.
Qiita記事 threadも待機
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
from kivy.clock import Clock | |
def start_gen(gen): | |
def step_gen(*args, **kwargs): | |
try: | |
gen.send((args, kwargs, ))(step_gen) | |
except StopIteration: | |
pass | |
try: | |
gen.send(None)(step_gen) | |
except StopIteration: | |
pass | |
def thread(func, *args, **kwargs): | |
from threading import Thread | |
return_value = None | |
is_finished = False | |
def wrapper(*args, **kwargs): | |
nonlocal return_value, is_finished | |
return_value = func(*args, **kwargs) | |
is_finished = True | |
Thread(target=wrapper, args=args, kwargs=kwargs).start() | |
while not is_finished: | |
yield sleep(3) | |
return return_value | |
def sleep(duration): | |
return lambda step_gen: Clock.schedule_once(step_gen, duration) | |
def event(ed, name): | |
bind_id = None | |
step_gen = None | |
def bind(step_gen_): | |
nonlocal bind_id, step_gen | |
bind_id = ed.fbind(name, callback) | |
assert bind_id > 0 # bindingに成功したか確認 | |
step_gen = step_gen_ | |
def callback(*args, **kwargs): | |
ed.unbind_uid(name, bind_id) | |
step_gen(*args, **kwargs) | |
return bind | |
from kivy.app import App | |
from kivy.lang import Builder | |
from kivy.factory import Factory | |
KV_CODE = ''' | |
Button: | |
''' | |
class SampleApp(App): | |
def build(self): | |
return Builder.load_string(KV_CODE) | |
def on_start(self): | |
start_gen(self.some_task()) | |
def some_task(self): | |
def heavy_task(): | |
import time | |
for i in range(5): | |
time.sleep(1) | |
print(i) | |
button = self.root | |
button.text = 'start heavy task' | |
yield event(button, 'on_press') | |
button.text = 'running...' | |
yield from thread(heavy_task) | |
button.text = 'done' | |
if __name__ == '__main__': | |
SampleApp().run() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment