反序列化期间如何获得对Android Context的引用？

Question

I have a class that holds a reference to a Context, and I plan to serialize an object of this class. As you know, a Context object cannot be serialized, so I've marked it as transient .

Now, the problem I'm facing is how can I restore the state of the Context reference? I need to somehow pass in a reference to the application's current context during deserialization. Is there a way to do this during deserialization, or do I have to first restore the object and then reinitialize the transient variable through a seperate method or something.

Answer 1

You should look at overriding readObject() method. And in readObject(), you can initialize Context variable to whatever value you consider suitable.

eg

class Test implements Serializable{
 private int a;
 private string b;
 transient Context c;
 private void readObject(ObjectInputStream in) throws IOException{
  in.defaultReadObject();
  //now initialize transient fields
  c=ContextFactory.getContext();
 }

}