Android高手进阶教程(十七)之---Android中Intent传递对象的两种方法(Serializable,Parcelable)!

大家好，好久不见，今天要给大家讲一下Android中Intent中如何传递对象,就我目前所知道的有两种方法，一种是Bundle.putSerializable(Key,Object);另一种是Bundle.putParcelable(Key, Object);当然这些Object是有一定的条件的，前者是实现了Serializable接口，而后者是实现了Parcelable接口，为了让大家更容易理解我还是照常写了一个简单的Demo,大家就一步一步跟我来吧！

第一步:新建一个Android工程命名为Object

大家好，好久不见，今天要给大家讲一下Android中Intent中如何传递对象,就我目前所知道的有两种方法，一种是Bundle.putSerializable(Key,Object);另一种是Bundle.putParcelable(Key, Object);当然这些Object是有一定的条件的，前者是实现了Serializable接口，而后者是实现了Parcelable接口，为了让大家更容易理解我还是照常写了一个简单的Demo,大家就一步一步跟我来吧！

第一步:新建一个Android工程命名为ObjectTranDemo(类比较多哦!)目录结构如下图:

第二步:修改main.xml布局文件(这里我增加了两个按钮)代码如下：

 <?xml version="1.0" encoding="utf-8"?>   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"      android:orientation="vertical"      android:layout_width="fill_parent"      android:layout_height="fill_parent"      >   <TextView         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="Welcome to Mr wei's blog."      />   <Button       android:id="@+id/button1"      android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:text="Serializable"  />   <Button       android:id="@+id/button2"      android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:text="Parcelable"  />   </LinearLayout>

第三步:新建两个类一个是Person.java实现Serializable接口，另一个Book.java实现Parcelable接口，代码分别如下:

Person.java:

 package com.tutor.objecttran;   import java.io.Serializable;   public class Person implements Serializable {       private static final long serialVersionUID = -7060210544600464481L;        private String name;       private int age;       public String getName() {           return name;       }       public void setName(String name) {           this.name = name;       }       public int getAge() {           return age;       }       public void setAge(int age) {           this.age = age;       }          }

Book.java:

 package com.tutor.objecttran;   import android.os.Parcel;   import android.os.Parcelable;   public class Book implements Parcelable {       private String bookName;       private String author;       private int publishTime;              public String getBookName() {           return bookName;       }       public void setBookName(String bookName) {           this.bookName = bookName;       }       public String getAuthor() {           return author;       }       public void setAuthor(String author) {           this.author = author;       }       public int getPublishTime() {           return publishTime;       }       public void setPublishTime(int publishTime) {           this.publishTime = publishTime;       }              public static final Parcelable.Creator<Book> CREATOR = new Creator<Book>() {           public Book createFromParcel(Parcel source) {               Book mBook = new Book();               mBook.bookName = source.readString();               mBook.author = source.readString();               mBook.publishTime = source.readInt();               return mBook;           }           public Book[] newArray(int size) {               return new Book[size];           }       };              public int describeContents() {           return 0;       }       public void writeToParcel(Parcel parcel, int flags) {           parcel.writeString(bookName);           parcel.writeString(author);           parcel.writeInt(publishTime);       }   }

第四步:修改ObjectTranDemo.java,并且新建两个Activity,一个是ObjectTranDemo1.java,别一个是ObjectTranDemo2.java.分别用来显示Person对像数据，和Book对象数据:,代码分别如下：

ObjectTranDemo.java:

 package com.tutor.objecttran;   import android.app.Activity;   import android.content.Intent;   import android.os.Bundle;   import android.view.View;   import android.view.View.OnClickListener;   import android.widget.Button;   public class ObjectTranDemo extends Activity implements OnClickListener {              private Button sButton,pButton;       public  final static String SER_KEY = "com.tutor.objecttran.ser";       public  final static String PAR_KEY = "com.tutor.objecttran.par";       public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           setContentView(R.layout.main);              setupViews();                  }              //我的一贯作风呵呵       public void setupViews(){           sButton = (Button)findViewById(R.id.button1);           pButton = (Button)findViewById(R.id.button2);           sButton.setOnClickListener(this);           pButton.setOnClickListener(this);       }       //Serializeable传递对象的方法       public void SerializeMethod(){           Person mPerson = new Person();           mPerson.setName("frankie");           mPerson.setAge(25);           Intent mIntent = new Intent(this,ObjectTranDemo1.class);           Bundle mBundle = new Bundle();           mBundle.putSerializable(SER_KEY,mPerson);           mIntent.putExtras(mBundle);                      startActivity(mIntent);       }       //Pacelable传递对象方法       public void PacelableMethod(){           Book mBook = new Book();           mBook.setBookName("Android Tutor");           mBook.setAuthor("Frankie");           mBook.setPublishTime(2010);           Intent mIntent = new Intent(this,ObjectTranDemo2.class);           Bundle mBundle = new Bundle();           mBundle.putParcelable(PAR_KEY, mBook);           mIntent.putExtras(mBundle);                      startActivity(mIntent);       }       //铵钮点击事件响应       public void onClick(View v) {           if(v == sButton){               SerializeMethod();           }else{               PacelableMethod();           }       }   }

ObjectTranDemo1.java:

 package com.tutor.objecttran;   import android.app.Activity;   import android.os.Bundle;   import android.widget.TextView;   public class ObjectTranDemo1 extends Activity {       @Override      public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);                      TextView mTextView = new TextView(this);           Person mPerson = (Person)getIntent().getSerializableExtra(ObjectTranDemo.SER_KEY);           mTextView.setText("You name is: " + mPerson.getName() + "/n"+                   "You age is: " + mPerson.getAge());                      setContentView(mTextView);       }   }

ObjectTranDemo2.java:

 package com.tutor.objecttran;   import android.app.Activity;   import android.os.Bundle;   import android.widget.TextView;   public class ObjectTranDemo2 extends Activity {           public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           TextView mTextView = new TextView(this);           Book mBook = (Book)getIntent().getParcelableExtra(ObjectTranDemo.PAR_KEY);           mTextView.setText("Book name is: " + mBook.getBookName()+"/n"+                             "Author is: " + mBook.getAuthor() + "/n" +                             "PublishTime is: " + mBook.getPublishTime());           setContentView(mTextView);       }   }

第五步:比较重要的一步啦，修改AndroidManifest.xml文件（将两个新增的Activity，ObjectTranDemo1,ObjectTranDemo2)申明一下代码如下(第14，15行):

 <?xml version="1.0" encoding="utf-8"?>   <manifest xmlns:android="http://schemas.android.com/apk/res/android"        package="com.tutor.objecttran"        android:versionCode="1"        android:versionName="1.0">       <application android:icon="@drawable/icon" android:label="@string/app_name">           <activity android:name=".ObjectTranDemo"                    android:label="@string/app_name">               <intent-filter>                   <action android:name="android.intent.action.MAIN" />                   <category android:name="android.intent.category.LAUNCHER" />               </intent-filter>           </activity>           <activity android:name=".ObjectTranDemo1"></activity>           <activity android:name=".ObjectTranDemo2"></activity>       </application>       <uses-sdk android:minSdkVersion="7" />   </manifest>

第六步:运行上述工程查看效果图啦:

效果1：首界面:

效果2:点击Serializable按钮

效果3:点击Parcelable按钮:

OK~今天就先到这里了，大家如果要嫌代码过长，不想敲的话，可以留下Email.俺给你邮过去，呵呵~希望对大家 有点小帮助 ，bye~

TranDemo(类比较多哦!)目录结构如下图:

第二步:修改main.xml布局文件(这里我增加了两个按钮)代码如下：

 <?xml version="1.0" encoding="utf-8"?>   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"      android:orientation="vertical"      android:layout_width="fill_parent"      android:layout_height="fill_parent"      >   <TextView         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="Welcome to Mr wei's blog."      />   <Button       android:id="@+id/button1"      android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:text="Serializable"  />   <Button       android:id="@+id/button2"      android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:text="Parcelable"  />   </LinearLayout>

第三步:新建两个类一个是Person.java实现Serializable接口，另一个Book.java实现Parcelable接口，代码分别如下:

Person.java:

 package com.tutor.objecttran;   import java.io.Serializable;   public class Person implements Serializable {       private static final long serialVersionUID = -7060210544600464481L;        private String name;       private int age;       public String getName() {           return name;       }       public void setName(String name) {           this.name = name;       }       public int getAge() {           return age;       }       public void setAge(int age) {           this.age = age;       }          }

Book.java:

 package com.tutor.objecttran;   import android.os.Parcel;   import android.os.Parcelable;   public class Book implements Parcelable {       private String bookName;       private String author;       private int publishTime;              public String getBookName() {           return bookName;       }       public void setBookName(String bookName) {           this.bookName = bookName;       }       public String getAuthor() {           return author;       }       public void setAuthor(String author) {           this.author = author;       }       public int getPublishTime() {           return publishTime;       }       public void setPublishTime(int publishTime) {           this.publishTime = publishTime;       }              public static final Parcelable.Creator<Book> CREATOR = new Creator<Book>() {           public Book createFromParcel(Parcel source) {               Book mBook = new Book();               mBook.bookName = source.readString();               mBook.author = source.readString();               mBook.publishTime = source.readInt();               return mBook;           }           public Book[] newArray(int size) {               return new Book[size];           }       };              public int describeContents() {           return 0;       }       public void writeToParcel(Parcel parcel, int flags) {           parcel.writeString(bookName);           parcel.writeString(author);           parcel.writeInt(publishTime);       }   }

第四步:修改ObjectTranDemo.java,并且新建两个Activity,一个是ObjectTranDemo1.java,别一个是ObjectTranDemo2.java.分别用来显示Person对像数据，和Book对象数据:,代码分别如下：

ObjectTranDemo.java:

 package com.tutor.objecttran;   import android.app.Activity;   import android.content.Intent;   import android.os.Bundle;   import android.view.View;   import android.view.View.OnClickListener;   import android.widget.Button;   public class ObjectTranDemo extends Activity implements OnClickListener {              private Button sButton,pButton;       public  final static String SER_KEY = "com.tutor.objecttran.ser";       public  final static String PAR_KEY = "com.tutor.objecttran.par";       public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           setContentView(R.layout.main);              setupViews();                  }              //我的一贯作风呵呵       public void setupViews(){           sButton = (Button)findViewById(R.id.button1);           pButton = (Button)findViewById(R.id.button2);           sButton.setOnClickListener(this);           pButton.setOnClickListener(this);       }       //Serializeable传递对象的方法       public void SerializeMethod(){           Person mPerson = new Person();           mPerson.setName("frankie");           mPerson.setAge(25);           Intent mIntent = new Intent(this,ObjectTranDemo1.class);           Bundle mBundle = new Bundle();           mBundle.putSerializable(SER_KEY,mPerson);           mIntent.putExtras(mBundle);                      startActivity(mIntent);       }       //Pacelable传递对象方法       public void PacelableMethod(){           Book mBook = new Book();           mBook.setBookName("Android Tutor");           mBook.setAuthor("Frankie");           mBook.setPublishTime(2010);           Intent mIntent = new Intent(this,ObjectTranDemo2.class);           Bundle mBundle = new Bundle();           mBundle.putParcelable(PAR_KEY, mBook);           mIntent.putExtras(mBundle);                      startActivity(mIntent);       }       //铵钮点击事件响应       public void onClick(View v) {           if(v == sButton){               SerializeMethod();           }else{               PacelableMethod();           }       }   }

ObjectTranDemo1.java:

 package com.tutor.objecttran;   import android.app.Activity;   import android.os.Bundle;   import android.widget.TextView;   public class ObjectTranDemo1 extends Activity {       @Override      public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);                      TextView mTextView = new TextView(this);           Person mPerson = (Person)getIntent().getSerializableExtra(ObjectTranDemo.SER_KEY);           mTextView.setText("You name is: " + mPerson.getName() + "/n"+                   "You age is: " + mPerson.getAge());                      setContentView(mTextView);       }   }

ObjectTranDemo2.java:

 package com.tutor.objecttran;   import android.app.Activity;   import android.os.Bundle;   import android.widget.TextView;   public class ObjectTranDemo2 extends Activity {           public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           TextView mTextView = new TextView(this);           Book mBook = (Book)getIntent().getParcelableExtra(ObjectTranDemo.PAR_KEY);           mTextView.setText("Book name is: " + mBook.getBookName()+"/n"+                             "Author is: " + mBook.getAuthor() + "/n" +                             "PublishTime is: " + mBook.getPublishTime());           setContentView(mTextView);       }   }

第五步:比较重要的一步啦，修改AndroidManifest.xml文件（将两个新增的Activity，ObjectTranDemo1,ObjectTranDemo2)申明一下代码如下(第14，15行):

 <?xml version="1.0" encoding="utf-8"?>   <manifest xmlns:android="http://schemas.android.com/apk/res/android"        package="com.tutor.objecttran"        android:versionCode="1"        android:versionName="1.0">       <application android:icon="@drawable/icon" android:label="@string/app_name">           <activity android:name=".ObjectTranDemo"                    android:label="@string/app_name">               <intent-filter>                   <action android:name="android.intent.action.MAIN" />                   <category android:name="android.intent.category.LAUNCHER" />               </intent-filter>           </activity>           <activity android:name=".ObjectTranDemo1"></activity>           <activity android:name=".ObjectTranDemo2"></activity>       </application>       <uses-sdk android:minSdkVersion="7" />   </manifest>

第六步:运行上述工程查看效果图啦:

效果1：首界面:

效果2:点击Serializable按钮

效果3:点击Parcelable按钮:

OK~今天就先到这里了，大家如果要嫌代码过长，不想敲的话，可以留下Email.俺给你邮过去，呵呵~希望对大家 有点小帮助 ，bye~