intent.getSerializableExtra

传递类对象以前一直没搞懂怎么做，都是用静态引用。现在终于搞懂了，实现Serializable接口

实体类部分

public class CustomeClass implements Serializable{   
      
    private static final long serialVersionUID = -7060210544600464481L;   
    private String name;   
    private String id;   
    private int age;   
    private String sex;   
       
    public String getName() {   
        return name;   
     }   
    public void setName(String name) {   
        this.name = name;   
     }   
    public String getId() {   
        return id;   
     }   
    public void setId(String id) {   
        this.id = id;   
     }   
    public int getAge() {   
        return age;   
     }   
    public void setAge(int age) {   
        this.age = age;   
     }   
    public String getSex() {   
        return sex;   
     }   
    public void setSex(String sex) {   
        this.sex = sex;   
     }   
  
}  

发送部分

CustomeClass cc = new CustomeClass();   
cc.setAge(21);   
cc.setId("123456");   
cc.setName("mingkg21");   
cc.setSex("男");   
  
Intent intent = new Intent(this, MainActivity.class);   
intent.putExtra("PERSON_INFO", cc);   
startActivity(intent);  

接收部分

Intent intent = getIntent();   
CustomeClass cc = CustomeClass)intent.getSerializableExtra("PERSON_INFO");   
setTextView(R.id.id, cc.getId());   
setTextView(R.id.name, cc.getName());   
setTextView(R.id.sex, cc.getSex());   
setTextView(R.id.age, String.valueOf(cc.getAge()));