解决StartForeground Bad Notification Error错误

Android8.0的Notification添加了用户渠道，使得Android7.0的通知不在适配8.0。新设计让用户有了更多的自主选择权利，更人性化，应该及时学会新变化，跟上新内容。

错误信息

• 今天打开Android studio，运行以前的音乐项目，当我在手机上进行调试的时候出现了如下错误：

• 经过上网搜索，得知Android 8.0 对于Notification有了新的设计，具体原因见下图：

解决办法

• 在Android8.0后 需要给notification设置一个channelid，这里有官方的代码。具体的做法就是创建一个NotificationChannel，修改后的代码如下：

  

• 代码改动的地方有两处，下面是改动的代码：

···

      if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
        notificationChannel = new NotificationChannel(CHANNEL_ONE_ID,
                CHANNEL_ONE_NAME, NotificationManager.IMPORTANCE_HIGH);
        notificationChannel.enableLights(true);
        notificationChannel.setLightColor(Color.RED);
        notificationChannel.setShowBadge(true);
        notificationChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
        NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        manager.createNotificationChannel(notificationChannel);


        PendingIntent contentIntents = PendingIntent.getActivity(this, 0, intents, 0);
        //新增setChannelId()方法--------------------------------------
        mbuilder = new Notification.Builder(this).setChannelId(CHANNEL_ONE_ID);
        mRemoteViews = new RemoteViews(getPackageName(), R.layout.notification);
        mbuilder.setContent(mRemoteViews)
                .setContentIntent(contentIntents)
                .setSmallIcon(R.mipmap.music)
                .setContentText(name);


        mRemoteViews.setTextViewText(R.id.notification_name, musiclist.get(curposition).getTitle());
        mRemoteViews.setTextViewText(R.id.notification_arti, musiclist.get(curposition).getArtist());

        //为intent添加play属性
        Intent intentnext = new Intent("next");
        PendingIntent pintentnext = PendingIntent.getBroadcast(this, 0, intentnext, 0);
        mRemoteViews.setOnClickPendingIntent(R.id.btn_custom_next, pintentnext);

        Intent intentplay = new Intent("play");
        PendingIntent pintentplay = PendingIntent.getBroadcast(this, 0, intentplay, 0);
        mRemoteViews.setOnClickPendingIntent(R.id.btn_custom_play, pintentplay);

        Intent intentpause = new Intent("pause");
        PendingIntent pintentpause = PendingIntent.getBroadcast(this, 0, intentpause, 0);
        mRemoteViews.setOnClickPendingIntent(R.id.btn_custom_pause, pintentpause);

        Notification notify = mbuilder.build();
        startForeground(1, notify);
    }

···