通知栏：Notification

private void setNotification() throws FileNotFoundException {
        String ChannelId = "渠道ID";

        NotificationManagerCompat managerCompat = NotificationManagerCompat.from(this);     /*1.系统通知管理*/

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {         /*2.安卓8 NotificationChannel*/
            NotificationChannel channel = new NotificationChannel(ChannelId,"渠道名称", NotificationManager.IMPORTANCE_HIGH/*重要等级*/);
            channel.setDescription("设置渠道描述");
            channel.setBypassDnd(true);     /*是否绕过请勿打扰模式*/
            channel.setShowBadge(false);        /*是否显示桌面Launcher的消息角标*/
            channel.setSound(null, null);       /*通知出现时声音，默认通知是有声音的*/
            channel.enableLights(false);        /*通知出现时的闪灯（如果 android 设备支持的话）*/
            channel.setLightColor(Color.RED);       /*闪灯颜色*/
            channel.enableVibration(false);      /*是否启用震动（如果 android 设备支持的话）*/
            channel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});        /*震动模式*/
            managerCompat.createNotificationChannel(channel);       /*传给系统通知管理*/
        }

        RemoteViews views = new RemoteViews(getPackageName(),R.layout.notice_audio);        /*3.布局文件*/
        views.setTextViewText(R.id.t1_6,listAudioModel.get(B).getSong());        /*绑定控件id 赋值*/
        views.setTextViewText(R.id.t2_6,listAudioModel.get(B).getSinger());
        if (ContentResolver_.getAlbumBitmap(this,listAudioModel.get(B).getAlbumId()) != null){
            views.setImageViewBitmap(R.id.i1_6,ContentResolver_.getAlbumBitmap(this,listAudioModel.get(B).getAlbumId()));
        }else { views.setImageViewResource(R.id.i1_6,R.drawable.ic_music); }
        views.setImageViewResource(R.id.i2_6,R.drawable.ic_previoussong);
        views.setImageViewResource(R.id.i3_6,R.drawable.ic_zanting);
        views.setImageViewResource(R.id.i4_6,R.drawable.ic_futuresong);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this,ChannelId);      /*4.通知*/
        builder.setSmallIcon(R.drawable.ic_music/*通知图标*/)
//                .setContentTitle("通知标题").setContentText("通知内容").setWhen(/*设置通知时间*/System.currentTimeMillis())
                .setOngoing(/*通知右滑无法删除*/true)
//                .setContent(/*绑定布局文件*/views)        /*最高高度64 超出则显示不全*/
                .setCustomBigContentView(/*绑定布局文件*/views);      /*最高高度256 超出则显示不全*/

        Notification notification = builder.build();        /*5.创建通知*/
        boolean isEnabled = managerCompat.areNotificationsEnabled();        /*检查通知权限 返回true:开*/

        managerCompat.notify(1,notification);         /*6.系统通知管理 通知*/
    }