Android中Intent傳遞對象的兩種方法(Serializable,Parcelable)

今天要給大家講一下Android中Intent中如何傳遞對象,就我目前所知道的有兩種方法，一種是Bundle.putSerializable(Key,Object);另一種是Bundle.putParcelable(Key, Object);當然這些Object是有一定的條件的，前者是實現了Serializable接口，而後者是實現了Parcelable接口，為了讓大家更容易理解我還是照常寫了一個簡單的Demo,大家就一步一步跟我來吧！

第一步:新建一個Android工程命名為ObjectTranDemo(類比較多哦!)目錄結構如下圖:

第二步:修改main.xml布局文件(這裡我增加了兩個按鈕)代碼如下 [java]

1. <?xml version="1.0" encoding="utf-8"?>
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3. android:orientation="vertical"
4. android:layout_width="fill_parent"
5. android:layout_height="fill_parent"
6. >
7. <TextView
8. android:layout_width="fill_parent"
9. android:layout_height="wrap_content"
10. android:text="Welcome to Mr wei's blog."
11. />
12. <Button
13. android:id="@+id/button1"
14. android:layout_width="fill_parent"
15. android:layout_height="wrap_content"
16. android:text="Serializable"
17. />
18. <Button
19. android:id="@+id/button2"
20. android:layout_width="fill_parent"
21. android:layout_height="wrap_content"
22. android:text="Parcelable"
23. />
24. </LinearLayout>

第三步:新建兩個類一個是Person.java實現Serializable接口，另一個Book.java實現Parcelable接口，代碼分別如下:

Person.java:

[java]

1. package com.tutor.objecttran;
2. import java.io.Serializable;
3. public class Person implements Serializable {
4. private static final long serialVersionUID = -7060210544600464481L;
5. private String name;
6. private int age;
7. public String getName() {
8. return name;
9. }
10. public void setName(String name) {
11. this.name = name;
12. }
13. public int getAge() {
14. return age;
15. }
16. public void setAge(int age) {
17. this.age = age;
18. }
20. }

Book.java:

[javascript]

1. package com.tutor.objecttran;
2. import android.os.Parcel;
3. import android.os.Parcelable;
4. public class Book implements Parcelable {
5. private String bookName;
6. private String author;
7. private int publishTime;
9. public String getBookName() {
10. return bookName;
11. }
12. public void setBookName(String bookName) {
13. this.bookName = bookName;
14. }
15. public String getAuthor() {
16. return author;
17. }
18. public void setAuthor(String author) {
19. this.author = author;
20. }
21. public int getPublishTime() {
22. return publishTime;
23. }
24. public void setPublishTime(int publishTime) {
25. this.publishTime = publishTime;
26. }
28. public static final Parcelable.Creator<Book> CREATOR = new Creator<Book>() {
29. public Book createFromParcel(Parcel source) {
30. Book mBook = new Book();
31. mBook.bookName = source.readString();
32. mBook.author = source.readString();
33. mBook.publishTime = source.readInt();
34. return mBook;
35. }
36. public Book[] newArray(int size) {
37. return new Book[size];
38. }
39. };
41. public int describeContents() {
42. return 0;
43. }
44. public void writeToParcel(Parcel parcel, int flags) {
45. parcel.writeString(bookName);
46. parcel.writeString(author);
47. parcel.writeInt(publishTime);
48. }
49. }