应用研发平台EMAS上用这个代码android8.0以上能收到推送，但在通知栏不显示，请问该如何解决

应用研发平台EMAS上用这个代码android8.0以上能收到推送，但在通知栏不显示，请问该如何解决？

import static android.content.ContentValues.TAG;

import android.app.Application;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.Context;
import android.graphics.Color;
import android.os.Build;
import android.util.Log;

import com.alibaba.sdk.android.push.CloudPushService;
import com.alibaba.sdk.android.push.CommonCallback;
import com.alibaba.sdk.android.push.noonesdk.PushServiceFactory;
import com.alibaba.sdk.android.push.notification.BasicCustomPushNotification;
import com.alibaba.sdk.android.push.notification.CustomNotificationBuilder;
import com.alibaba.sdk.android.push.register.VivoRegister;

public class MyApplication extends Application {
@Override
public void onCreate() {

    super.onCreate();
    initCloudChannel(this);
    createNotificationChannel(this);
}

// 初始化阿里云推送通知服务
private void initCloudChannel(Context applicationContext) {
    PushServiceFactory.init(applicationContext);
    CloudPushService pushService = PushServiceFactory.getCloudPushService();
    pushService.setLogLevel(CloudPushService.LOG_DEBUG);   //仅适用于Debug包，正式包不需要此行

    // 注册推送通知服务
    pushService.register(applicationContext, new CommonCallback() {
        @Override
        public void onSuccess(String response) {
            Log.d(TAG, "推送通知初始化成功");
        }

        @Override
        public void onFailed(String errorCode, String errorMessage) {
            Log.d(TAG, "推送通知初始化失败 -- errorcode:" + errorCode + " -- errorMessage:" + errorMessage);
        }
    });

    // 设置自定义通知样式（可选）
    BasicCustomPushNotification notification = new BasicCustomPushNotification();
    notification.setBuildWhenAppInForeground(false);
    CustomNotificationBuilder.getInstance().setCustomNotification(1, notification);

    // 设置 MessageIntentService
    pushService.setPushIntentService(MessageIntentService.class);

    // 厂商辅助通道初始化
    VivoRegister.register(applicationContext);
}


// 创建一个推送通知通道
private void createNotificationChannel(Application app) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationManager mNotificationManager = (NotificationManager) app.getSystemService(Context.NOTIFICATION_SERVICE);
        // 通知通道的id
        String id = "1";
        // 用户可以看到的通知通道的名字.
        CharSequence name = "推送通知通道";
        // 用户可以看到的通知通道的描述
        String description = "通道描述";
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel mChannel = new NotificationChannel(id, name, importance);
        // 配置通知渠道的属性
        mChannel.setDescription(description);
        // 设置通知出现时的闪灯（如果 android 设备支持的话）
        mChannel.enableLights(true);
        mChannel.setLightColor(Color.RED);
        // 设置通知出现时的震动（如果 android 设备支持的话）
        mChannel.enableVibration(true);
        mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
        //最后在notificationmanager中创建该通知渠道
        mNotificationManager.createNotificationChannel(mChannel);
    }
}

}