runner.py

from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.animation import Animation
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import NumericProperty, BooleanProperty



class Runner(BoxLayout):
    value = NumericProperty(0) #сколько приседаний сделано
    finished = BooleanProperty(False) #сделаны ли все приседания
    def __init__(self, total=10, steptime=1, autorepeat=True, bcolor=(0.73, 0.15, 0.96, 1), btext_inprogress="Приседание", **kwargs):
        super().__init__(**kwargs)
        self.total = total
        self.autorepeat = autorepeat
        self.btext_inprogress = btext_inprogress
        self.animation = (Animation(pos_hint={'top':0.1}, duration=steptime/2)
                          + Animation(pos_hint={'top':1.0}, duration = steptime/2))
        self.animation.on_progress = self.next
        self.btn = Button(size_hint=(1, 0.1), pos_hint={'top':1.0}, background_color=bcolor)
        self.add_widget(self.btn)

    '''def restart(self, total):
        self.total = total
        self.start()'''

    def start(self):
        self.value = 0
        self.finished = False
        self.btn.text = self.btext_inprogress
        if self.autorepeat:
            self.animation.repeat = True
        self.animation.start(self.btn)

    def next(self, widget, step):
        if step == 1.0:
            self.value+=1
            if self.value >= self.total:
                self.animation.repeat = False
                self.finished = True