main.py 文件源码

def build(self):
        root = Builder.load_string(kv)
        Clock.schedule_interval(self.print_something, 2)
        # Clock.schedule_interval(self.test_pyjnius, 5)
        print('testing metrics')
        from kivy.metrics import Metrics
        print('dpi is', Metrics.dpi)
        print('density is', Metrics.density)
        print('fontscale is', Metrics.fontscale)
        return root