Android实时游戏字节消息传输

Question

Im develop my own game, And i use google play games services to add multiplayer features.

I have a problem with the data messages transfer. In default the message object is byte[], And its easy to transfer object like int, char, and cast they back.

My problem is to transfer objects i created.

Worked example:

When sending data:

 int a = 0;
 mMsgBuf[0] = (byte) a;

When reciving:

int a = (int) mMsgBuf[0];

Now i want to send my object, But i need to transfer him to a byte (not byte array), and put him in mMsgBuf[X].

How can i do that?

Edit Its easy to convert object to byte[], but The messages transfer is a byte[]. I'm consulting about how to transfer the message (As we know - byte[]) with my objectbyte[], Maybe merge the two arrays?

Answer 1

Make your custom Object serializable if it's not. Implement Serializable Interface . Then convert between object and byte array to transfer or receive the data.

Object to byte[]:

ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(bos);
out.writeObject(yourObject);
byte[] yourBytes = bos.toByteArray();

byte[] to Object:

ByteArrayIntputSream bis = new ByteArrayInputStream(yourBytes);
ObjectInput in = new ObjectInputStream(bis);
Object o = in.readObject();