Notification 介绍见：https://developer.android.com/reference/android/app/Notification.html

Android api 一直对通知栏进行升级！ 包括7.0继续改善快捷通知栏，接下来介绍下通知栏不同版本的兼容适配.

**Android  JELLY_BEAN(16) 通知可以直接new Notification()**

 Notification notification = new Notification();notification.icon = android.R.drawable.stat_sys_download_done;notification.flags |= Notification.FLAG_AUTO_CANCEL;// 设置点击事件的PendingIntentnotification.setLatestEventInfo(mContext, aInfo.mFilename, contentText, pendingIntent);

**Android .LOLLIPOP_MR1(22) 通知可以通过Notification.Builder（）**

   Notification notification = new Notification.Builder(mContext).setAutoCancel(false).setContentIntent(pi)// 设置pendingIntent.setSmallIcon(android.R.drawable.stat_sys_download_done).setWhen(System.currentTimeMillis()).build();

**Android .LOLLIPOP_MR1(22)以上 也就从6.0开始  只能通过new NotificationCompat.Builder(mContext)**

   Notification notification = new NotificationCompat.Builder(mContext).setContentTitle(aInfo.mFilename).setContentText(contentText).setSmallIcon(android.R.drawable.stat_sys_download_done).setContentIntent(pi)// 设置pendingIntent.build();

**Android .O以上 也就从8.0开始  需要制定chanel属性**

 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {String CHANNEL_ID = "my_channel_01";CharSequence name = "my_channel";String Description = "This is my channel";int importance = NotificationManager.IMPORTANCE_HIGH;NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);mChannel.setDescription(Description);mChannel.enableLights(true);mChannel.setLightColor(Color.RED);mChannel.enableVibration(true);mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});mChannel.setShowBadge(false);notificationManager.createNotificationChannel(mChannel);}NotificationCompat.Builder builder = new NotificationCompat.Builder(ctx, CHANNEL_ID).setSmallIcon(R.mipmap.ic_launcher).setContentTitle(title).setContentText(message);

原文链接 Android Notification 版本适配方案