Return the name of the main activity

        This value is read from the AndroidManifest.xml

        :rtype: str

def get_main_activity(self):
        """
        Return the name of the main activity

        This value is read from the AndroidManifest.xml

        :rtype: str
        """
        activities = self.get_main_activities()
        if len(activities) > 0:
            return self._format_value(activities.pop())
        return None