Android---Intent传递对象、对象数组

Android有两种方式传递对象，分别让对象实现Serializable接口和Parceable接口。
用Serializable传递对象：bundle.putSerializable(“key”,object); 接收对象: (Object)getIntent().getSerializableExtra(“key”);

用Parceable传递对象： bundle.putParcelable(“key”,object);接收对象:(Object)getIntent().getParcelableExtra(“key”);

下面举例说明：
1. 新建Student类实现Serializable接口

public class Student implements Serializable {    private static final long serialVersionUID = 1L;    private int id;    private String name;    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

2.新建Teacher类实现Parceable接口

public class Teacher implements Parcelable {    private int id;    private String department;    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getDepartment() {        return department;    }    public void setDepartment(String department) {        this.department = department;    }    @Override    public int describeContents() {        return 0;    }    // 注意这里的write顺序跟下面的read顺序一定要一样    @Override    public void writeToParcel(Parcel dest, int flags) {        dest.writeInt(id);        dest.writeString(department);    }    public static final Parcelable.Creator<Teacher> CREATOR = new Creator<Teacher>() {        @Override        public Teacher createFromParcel(Parcel source) {            Teacher teacher = new Teacher();            teacher.id = source.readInt();            teacher.department = source.readString();            return teacher;        }        @Override        public Teacher[] newArray(int size) {            return new Teacher[size];        }    };}

3.使用Serializable传递、接收对象的方法：

private void serializable_pass() {        Student stu = new Student();        stu.setId(1000);        stu.setName("小明");        Intent intent = new Intent(MainActivity.this,SerializableActivity.class);        Bundle bundle = new Bundle();        bundle.putSerializable("serial", stu);        intent.putExtras(bundle);        startActivity(intent);    }

Student stu = (Student) getIntent().getSerializableExtra("serial");

4.使用Parceable传递、接收对象的方法：

private void parceable_pass() {        Teacher teacher = new Teacher();        teacher.setId(1001);        teacher.setDepartment("计算机科学与技术");        Intent intent = new Intent(MainActivity.this, ParceableActivity.class);        Bundle bundle = new Bundle();        bundle.putParcelable("parceable", teacher);        intent.putExtras(bundle);        startActivity(intent);    }

Teacher teacher = (Teacher) getIntent().getParcelableExtra("parceable");

5.使用Serializable传递、接收对象数组的方法：

private void serializableList_pass() {        List<Student> list = new ArrayList<>();        Student stu1 = new Student();        stu1.setId(1000);        stu1.setName("小明");        Student stu2 = new Student();        stu2.setId(1002);        stu2.setName("小红");        list.add(stu1);        list.add(stu2);        Intent intent = new Intent(MainActivity.this, ObjectListActivity.class);        //把list强制类型转换成Serializable类型        intent.putExtra("objectList", (Serializable) list);        startActivity(intent);    }

List<Student> stu = (List<Student>) getIntent().getSerializableExtra(                "objectList");

6.传递、接收普通数组方法(String int):

private void stringList_pass() {        ArrayList<String> list = new ArrayList<>();        list.add("string1");        list.add("string2");        Intent intent = new Intent(MainActivity.this, StringListActivity.class);        intent.putStringArrayListExtra("stringList", list);        startActivity(intent);    }

ArrayList<String> list = getIntent().getStringArrayListExtra(                "stringList");

//传递int型数组intent.putIntegerArrayListExtra(key, list);//接收int型数组list =(ArrayList<Integer>) getIntent().getIntegerArrayListExtra(key);

运行截图：

源码下载