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from kivy.app import App
from kivy.clock import Clock
from kivy.lang import Builder
from kivy.properties import BooleanProperty
from kivy.properties import ObjectProperty
from kivy.uix.boxlayout import BoxLayout
Builder.load_string('''
#:import proximity plyer.proximity
<ProximityInterface>:
proximity: proximity
orientation: 'vertical'
padding: '50dp'
spacing: '20dp'
BoxLayout:
orientation: 'horizontal'
size_hint_y: 0.3
Button:
id: button_enable
text: 'Enable'
disabled: False
on_release:
root.enable()
button_disable.disabled = not button_disable.disabled
button_enable.disabled = not button_enable.disabled
Button:
id: button_disable
text: 'Disable'
disabled: True
on_release:
root.disable()
button_disable.disabled = not button_disable.disabled
button_enable.disabled = not button_enable.disabled
Label:
text: 'Does Proximity Sensor detect something?'
Label:
text: 'Yes' if root.is_near else 'No'
Widget:
Label:
text: 'Cover with your hand'
Label:
text: 'a top part of phone to see result.'
''')
class ProximityInterface(BoxLayout):
'''Root Widget.'''
proximity = ObjectProperty()
is_near = BooleanProperty(False)
def enable(self):
self.proximity.enable()
Clock.schedule_interval(self.get_proxime, 1 / 20.)
def disable(self):
self.proximity.disable()
Clock.unschedule(self.get_proxime)
def get_proxime(self, dt):
self.is_near = self.proximity.proximity
class ProximityApp(App):
def build(self):
return ProximityInterface()
def on_pause(self):
return True
if __name__ == "__main__":
ProximityApp().run()
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