1.setSmallIcon()是必須的阳藻,否則notification無法展現(xiàn)
2.pendingIntent1和pendingIntent2是給兩個view設(shè)置的點擊事件袄琳;pendingIntent3并不是給特定view設(shè)置的點擊事件;效果:點擊custom_progress_icon時打開SecondActivity杆融;點擊tv_custom_progress_title時打開ThirdActivity楞卡;點擊其他地方時打開FourthActivity