java - Android Bundle 与 Java 普通对象 (POJO) - 序列化/反序列化性能

Question

我正在将一些数据从一个 Activity 传递到另一个 Activity 。我有以下两种解决方案:

1. 使用 bundle

   Bundle args = new Bundle();
   
   args.put ("key1",  serializable_object1);
   args.put ("key2",  serializable_object2);
   args.put ("key3",  serializable_object3);
   
   Intent intent = new Intent(this, MyActivity.class);
   intent.putExtra ( "args", args );
   

2. 使用 Java 普通对象

   public class FragModel implements Serializable {
   
       public Serializable key1;
       public Serializable key2;
       public Serializable key3;
   }
   
   Intent intent = new Intent(this, MyActivity.class);
   FragModel model = new FragModel();
   
   model.key1 = serializable_object1;
   model.key2 = serializable_object2;
   model.key3 = serializable_object3;
   
   // ....
   intent.putExtra ( "args",  model );
   

我的问题是哪种解决方案性能更好？更适合序列化/反序列化？

有人有什么想法吗？谢谢!

Answer 1

Bundle是android平台提供的默认通信和数据传输方式。你也可以在 android 中使用序列化，但不推荐。尝试用 Parceable 作为序列化的替代方案。这是取自android developer site :

Warning: this interface limits how its implementing classes can change in the future. By implementing Serializable you expose your flexible in-memory implementation details as a rigid binary representation. Simple code changes--like renaming private fields--are not safe when the changed class is serializable.

说到性能，我只能说serialize性能最差。不知道Parceable和Bundle在性能上有什么区别。