Activity之間的對象數據傳遞

利用Bundle封裝數據，通過Intent攜帶Bundle，具體實現如下：

public class User implements Parcelable{
//這個接口實現了從Percel容器讀取Person數據，並返回Person對象給邏輯層使用
//實現Parcelable.Creator接口對象名必須爲CREATOR
//對應writeToParcel裏面寫入的數據，寫的順序和讀的順序一致

//反序列化對象
private String name;
private Integer age;
public static final Parcelable.Creator<User> CREATOR=new Creator(){
        @Override
        public User createFromParcel(Parcel source) {
            User u = new User();
            u.setName(source.readString());
            u.setAge(source.readInteger());
            return u;
       }
        @Override
        public User[] newArray(int size) {
           return new User[size];
        }
   };
 public void setAge(int age){
     this.age=age;
 }
 public void setName(String name){
    this.name=name;
 }
 @Override
 public int describeContents(){
     return 0;
 }
 @Override
 public void writeToParcel(Parcel dest, int flags){
    // 序列化對象
    dest.writeString(name);
    dest.writeInt(age);
 }
}

Intent i=new Intent(MainActivity.this,Second.class);
User u=new User();
u.setName("里斯");
u.setAge(15);
Bundle b=new Bundle();
b.putExtra("userObject",u);
startActivity(i);