修复APP在前台时，收到推送无通知

src/main/java/tech/starwin/service/MsgHandleService.java

@@ -13,7 +13,7 @@ import com.google.firebase.messaging.RemoteMessage;
 import org.greenrobot.eventbus.EventBus;
 
 import tech.starwin.LibConfig;
-import tech.starwin.R;
+import tech.starwin.utils.ui_utils.UIHelper;
 
 
 /**
@@ -29,17 +29,15 @@ public class MsgHandleService extends FirebaseMessagingService {
 
         if (remoteMessage.getNotification() != null) {
             RemoteMessage.Notification notificationInfo = remoteMessage.getNotification();
-            NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
-            Notification notification = new NotificationCompat.Builder(this, "default")
+            NotificationCompat.Builder builder = new NotificationCompat.Builder(this, "default")
                     .setContentTitle(notificationInfo.getTitle())
                     .setContentText(notificationInfo.getBody())
                     .setSmallIcon(LibConfig.APP_ICON)
                     .setWhen(System.currentTimeMillis())
                     .setTicker(notificationInfo.getTitle())
                     .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
-                    .setAutoCancel(true)
-                    .build();
-            manager.notify(1, notification);
+                    .setAutoCancel(true);
+            UIHelper.notifyNotification(getBaseContext(), builder);
         }
     }
 

src/main/java/tech/starwin/utils/ui_utils/UIHelper.java

@@ -3,17 +3,22 @@ package tech.starwin.utils.ui_utils;
 
 import android.app.Activity;
 import android.app.Instrumentation;
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Color;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
+import android.os.Build;
 import android.support.annotation.ColorRes;
 import android.support.annotation.DrawableRes;
 import android.support.annotation.IdRes;
 import android.support.annotation.NonNull;
 import android.support.annotation.StringRes;
+import android.support.v4.app.NotificationCompat;
 import android.support.v4.content.ContextCompat;
 import android.support.v7.widget.DefaultItemAnimator;
 import android.support.v7.widget.GridLayoutManager;
@@ -44,6 +49,7 @@ import io.reactivex.Observable;
 import io.reactivex.ObservableEmitter;
 import io.reactivex.ObservableOnSubscribe;
 import io.reactivex.schedulers.Schedulers;
+import tech.starwin.LibConfig;
 import tech.starwin.R;
 import tech.starwin.base.RecyclerViewHolder;
 import tech.starwin.utils.BitmapUtils;
@@ -364,4 +370,27 @@ public class UIHelper {
     }
 
 
+    /**
+     * 显示通知
+     */
+    public static void notifyNotification(Context context, NotificationCompat.Builder builder) {
+        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
+
+        builder.setWhen(System.currentTimeMillis())
+                .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
+                .setAutoCancel(true)
+                .setDefaults(Notification.DEFAULT_ALL)
+                .setPriority(NotificationCompat.PRIORITY_HIGH);
+
+        // 兼容android O
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationChannel channel = new NotificationChannel(LibConfig.APPLICATION_ID, LibConfig.APPLICATION_ID, NotificationManager.IMPORTANCE_DEFAULT);
+            notificationManager.createNotificationChannel(channel);
+            builder.setChannelId(LibConfig.APPLICATION_ID);
+        }
+        // 通知系统展示通知栏
+        notificationManager.notify("test", 111, builder.build());
+    }
+
+
 }