android-studio - 如何在自定义通知上实现自定义向下箭头（展开按钮）？

Question

示例代码是：

remoteCollapsedView.setChronometerCountDown(R.id.chronometer, true);
remoteCollapsedView.setChronometer(R.id.chronometer, remainingTime, ("%tH:%tM:%tS"), true);
remoteCollapsedView.setImageViewResource(R.id.collapse_notification_button, 
R.drawable.ic_baseline_expand_more_24);

remoteCollapsedView.set...... ?????

远程视图是否有任何类型的 onClickListener .....