class Counter(RelativeLayout):
model_key = ObjectProperty()
# using this to plumb data from model to kv namespace
value = StringProperty()
def __init__(self, **kwargs):
super(Counter, self).__init__(**kwargs)
def on_model_key(self, i, key):
self.model = WidgetModel(key, default='default', save_on_stop=True)
self.model.bind(value=self.set_val)
self.set_val(self, self.model.value)
def increment(self):
self.model.value += 1
def decrement(self):
self.model.value -= 1
def set_val(self, i, val):
self.value = str(val)
def on_model_key(self, i, key):
self.model = WidgetModel(key, default='default', save_on_stop=True)
self.model.bind(value=self.set_val)
self.set_val(self, self.model.value)
