Firebase在发布模式下没有找到与对象序列化的属性 [英] Firebase No properties to serialize found with object in release mode

问题描述

我写了一个将实时位置数据推送到Firebase的方法：

prerivate $ writeNewMarker（int sessionType， String myUuid，String datetime，Location location）{
locationToDB = new LocationFromAndroid（）;
JSONObject jsonObjectCoords = new Coords（location.getLatitude（）+，location.getLongitude（）+，location.getAltitude（）+）;
locationToDB.setFinish（false）;
locationToDB.setLost（false）;
locationToDB.setCoords（jsonObjectCoords）;
locationToDB.setDistanceToGo（0）;
locationToDB.setHeading（location.getBearing（）+）;
locationToDB.setNauwkeurigheid（location.getAccuracy（）+）;
locationToDB.setSpeed（location.getSpeed（）* 3.6 +）;
locationToDB.setSpeed2（location.getSpeed（）+）;
locationToDB.setTimestamp（location.getTime（）+）;
locationToDB.setWp_user（myUuid）;
locationToDB.setSessionType（sessionType）;
locationToDB.setTitle（title）; （myUuid！= null&& datetime！= null&& locationToDB.getTitle（）！= null&&！myUuid.isEmpty（）&&！datetime.isEmpty（） ）{
databaseRef.child（myUuid +-Android+ sessionType + datetime）.setValue（locationToDB）;

当我以调试模式构建应用程序时，它工作得很好。但是，当我在Google Play的发布模式下构建它时，它会停止在此行：

  databaseRef.child（myUuid +-Android+ sessionType + datetime）.setValue（locationToDB）; 
  

更具体地说：当我这样做的时候，一切正常：

  databaseRef.child（myUuid +-Android+ sessionType + datetime）.setValue（Test）; 
  

它看起来像是传递一个对象，因为值在签名的APK中是不可能的？

错误：
例外com.google.firebase.database.DatabaseException：没有在类上找到序列化的属性$ b $添加 -keepclassmembers类com.yourcompany.models。** {*;}添加添加 } 在proguard-rules.pro做了诀窍。

Proguard规则文档

I've written a method for pushing real-time location data to Firebase:

private void writeNewMarker(int sessionType, String myUuid, String datetime, Location location) {
    locationToDB = new LocationFromAndroid();
    JSONObject jsonObjectCoords = new Coords(location.getLatitude() + "", location.getLongitude() + "", location.getAltitude() + "");
    locationToDB.setFinish("false");
    locationToDB.setLost("false");
    locationToDB.setCoords(jsonObjectCoords);
    locationToDB.setDistanceToGo("0");
    locationToDB.setHeading(location.getBearing() + "");
    locationToDB.setNauwkeurigheid(location.getAccuracy() + "");
    locationToDB.setSpeed(location.getSpeed() * 3.6 + "");
    locationToDB.setSpeed2(location.getSpeed() + "");
    locationToDB.setTimestamp(location.getTime() + "");
    locationToDB.setWp_user(myUuid);
    locationToDB.setSessionType(sessionType);
    locationToDB.setTitle(title);
    if(myUuid != null && datetime != null && locationToDB.getTitle() != null && !myUuid.isEmpty() && !datetime.isEmpty()) {
        databaseRef.child(myUuid + "-Android" + sessionType + datetime).setValue(locationToDB);

When I'm building the app in debug mode, it works perfectly fine. But when I'm building it in Release mode for Google Play, it stops working at this line:

databaseRef.child(myUuid + "-Android" + sessionType + datetime).setValue(locationToDB);

To be more specific: When I'm doing this, everything is OK:

databaseRef.child(myUuid + "-Android" + sessionType + datetime).setValue("Test");

It does look like passing an object as value isn't possible within a signed APK?

Error: Exception com.google.firebase.database.DatabaseException: No properties to serialize found on class

解决方案

Adding -keepclassmembers class com.yourcompany.models.** { *; } in proguard-rules.pro did the trick.

Proguard Rules Documentation

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