fixed flickering. only add progressView, when progress is shown
fixed flickering. only add progressView, when progress is shown

HYPERHYPER/JDStatusBarNotification,boherna/JDStatusBarNotification,boherna/JDStatusBarNotification,damoncoo/JDStatusBarNotification,yusuga/JDStatusBarNotification,yusuga/JDStatusBarNotification,HYPERHYPER/JDStatusBarNotification,lilidan/JDStatusBarNotification,sujeking/JDStatusBarNotification,benzhipeng/JDStatusBarNotification,kingiol/JDStatusBarNotification,niuxinghua/JDStatusBarNotification,yusuga/JDStatusBarNotification,ManagerOrganization/JDStatusBarNotification,benzhipeng/JDStatusBarNotification,andelf/JDStatusBarNotification,ManagerOrganization/JDStatusBarNotification,calimarkus/JDStatusBarNotification,jaydee3/JDStatusBarNotification,calimarkus/JDStatusBarNotification,csc-EricWu/JDStatusBarNotification,damoncoo/JDStatusBarNotification,devontech/JDStatusBarNotification,lilidan/JDStatusBarNotification,sujeking/JDStatusBarNotification,jianwoo/JDStatusBarNotification,jianwoo/JDStatusBarNotification,niuxinghua/JDStatusBarNotification,andelf/JDStatusBarNotification