• Serializable對象的傳遞
• Parcelable對象的傳遞

Serializable對象的傳遞

Serializable即序列化，將對象轉化成可存儲與傳輸狀態。

public class Student implements Serializable{String id;String name;String sex;public void setId(id){this.id = id;}public String getId(){return id;}public void setName(name){this.name = name;}public String getName(){return name;}public void setSex(sex){this.sex = sex;}public String getSex(){return sex;} } //傳遞數據 Student student = new Student(); student.setId("1"); student.setName("zs"); student.setSex("male"); Intent intent = new Intent(MainActivity.this,SecondActivity.class); intent.putExtra("info",student); startActivity(intent);//取數據 Student student = (Student)getIntent().getSerializableExtra("info");

Parcelable對象的傳遞

Parcelable原理：將一個對象進行分解成Intent所支持的數據類型，然后再傳遞。

package com.app.model;import android.os.Parcel; import android.os.Parcelable;/*** Created by Administrator on 16/4/20.*/ public class Student implements Parcelable{private String id;private String name;public String getId() {return id;}public void setId(String id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}@Overridepublic int describeContents() {return 0;}@Overridepublic void writeToParcel(Parcel dest, int flags) {dest.writeString(id);dest.writeString(name);}public static final Parcelable.Creator<Student> CREATOR = new Parcelable.Creator<Student>(){@Overridepublic Student createFromParcel(Parcel source) {Student student = new Student();student.setId(source.readString());student.setName(source.readString());return student;}@Overridepublic Student[] newArray(int size) {return new Student[size];}};}

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//傳遞對象 Student student = new Student(); student.setId("001"); student.setName("zs"); Intent intent = new Intent(MainActivity.this,SecondActivity.class); intent.putExtra("info",student); startActivity(intent);//獲取對象 Intent intent = getIntent(); Student student =(Student)intent.getParcelableExtra("info");

總結

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