Android 8.0之后通知栏悬浮栏不显示问题移动开发Mr.xiaocao-

先上效果图

参考这篇文章解决

 /**      * 发送通知      * @param content      */ @SuppressLint("WrongConstant") private void sendNotification(String content) { try {             String[] contents = content.split(",");             Intent intent = new Intent();             intent.setClass(this, TabHostActivity.class);             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED | Intent.FLAG_ACTIVITY_CLEAR_TOP);             PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); final NotificationManager notifiManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);             String id = getPackageName();             String name = "call_msg"; //Android 8.0 的要手动设置NotificationChannel if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { //NotificationManager.IMPORTANCE_MAX 最高支持 声音和悬浮                 NotificationChannel channel = new NotificationChannel(id, name, NotificationManager.IMPORTANCE_MAX);     notifiManager.createNotificationChannel(channel); }             Notification notification = new NotificationCompat.Builder(this) .setAutoCancel(true) .setPriority(Notification.PRIORITY_MAX) .setSmallIcon(R.drawable.pre_icon) .setContentTitle(contents[0]) .setContentText(contents[1]) .setVisibility(VISIBILITY_PUBLIC) .setWhen(System.currentTimeMillis()) //向通知添加声音、闪灯和振动效果 .setDefaults(Notification.DEFAULT_VIBRATE | Notification.DEFAULT_ALL | Notification.DEFAULT_SOUND) .setContentIntent(pendingIntent) .setChannelId(id) .build();             notifiManager.notify(1, notification); } catch (Exception e) {             e.printStackTrace(); } } 

主要适配sdk26（Android 8.0）之后的
然后使用.setChannelId(id)方法

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { //NotificationManager.IMPORTANCE_MAX 最高支持 声音和悬浮                 NotificationChannel channel = new NotificationChannel(id, name, NotificationManager.IMPORTANCE_MAX);                 notifiManager.createNotificationChannel(channel); }