Activity间传递对象集合

Intent intent = ....;//intent定义ArrayList<User> list = .....;//list赋值intent.putExtra("userList", list.toArray());startActivity(intent);//前提是list中的User必须implements Serializable //接收时：Intent intent = this.getIntent();           Object[] cobjs = (Object[]) intent.getSerializableExtra("userList");           for (int i = 0; i < cobjs.length; i++) {               User user = (User) cobjs[i];               userList.add(user);           }