8.0版本通知栏适配

8.0开始必须给通知设置以一个channelID

android.app.RemoteServiceException: Bad notification for startForeground: java.lang.RuntimeException: invalid channel for service notification: Notification(channel=null pri=0 contentView=xxx/0x7f0b0198 vibrate=null sound=null tick defaults=0x0 flags=0x42 color=0x00000000 vis=PRIVATE)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1782)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6600)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:518)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:821)

正确姿势

Notification.Builder builder = null;
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
//========================8.0之后要设置通知渠道========================================
                    String CAHNNEL_ONE_ID = "cn.com.kanjian.audio";
                    String CAHNNEL_ONE_NAME = "视频课堂";
                    NotificationChannel channel = new NotificationChannel(CAHNNEL_ONE_ID,CAHNNEL_ONE_NAME, NotificationManager.IMPORTANCE_HIGH);
                    channel.enableLights(true);
                    channel.setLightColor(Color.RED);
                    channel.setShowBadge(true);
                    channel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
                    NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
                    nm.createNotificationChannel(channel);
//=================================================================
                    builder = new Notification.Builder(AudioPlayService.this,CAHNNEL_ONE_ID);
                    builder.setOngoing(true)
                            .setSmallIcon(R.drawable.audio_sound_play)
                            .setTicker("正在播放:" + StringUtil.formatAudioName(resInfo.audioDetail.audioname))
                            .setWhen(System.currentTimeMillis())
                            .setCustomContentView(getRemoteViews(resInfo.audioDetail, isplay, mloadedImage));
//                    nm.notify(1,builder.build());//一般唤醒通知
                }else {
                    builder = new Notification.Builder(AudioPlayService.this);
                    builder.setOngoing(true)
                            .setSmallIcon(R.drawable.audio_sound_play)
                            .setTicker("正在播放:" + StringUtil.formatAudioName(resInfo.audioDetail.audioname))
                            .setWhen(System.currentTimeMillis())
                            .setContent(getRemoteViews(resInfo.audioDetail, isplay, mloadedImage));
                }
              //开启一个前台服务给通知，保证优先级
                startForeground(1, builder.build());