Call the ALooper_pollOnce to retrieve at most one event and callback the application

Property definitions

android :: native_app_glue $ App :: poll_looper_pause
	# Call the `ALooper_pollOnce` to retrieve at most one event and callback the application
	fun poll_looper_pause(timeout_ms: Int) import handle_looper_event `{
		int event;
		void* source;
		int ident = ALooper_pollOnce(timeout_ms, NULL, &event, &source);
		if (ident >= 0) {
			App_handle_looper_event(self, ident, event, source);
		}
	`}
lib/android/native_app_glue.nit:243,2--251,3