Several instance methods of intent transfer objects in Android series _android

In Android, there are 2 ways to transfer objects, namely, Bundle.putserializable (Key,object) and bundle.putparcelable (key, object) intent. Of course, these object is a certain condition, the former is the implementation of the serializable interface, and the latter is the implementation of the Parcelable interface, the following is an example I do for you
First we set up a project named: Objecttestdemo
Then we modify the Main.xml layout file, mainly add 2 buttons
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< 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 Jesson ' 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>

< 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 Jesson ' 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>
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Next we start to implement the project, respectively, establish Person.java implementation serializable interface, another Book.java implement Parcelable interface

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Package Com.test.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;

}

}

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Package Com.test.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;

}

}

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Package Com.test.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 Creator = new Creator () {

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);

}

}

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Package Com.test.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 Creator = new Creator () {

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);

}

}

Modify Objecttrandemo.java, and create two new activity, one is Objecttrandemo1.java, The other one is Objecttrandemo2.java. Used to display person pair image data, and book object data

Code

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Package Com.test.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 ();

}


public void Setupviews () {

Sbutton = (Button) Findviewbyid (R.id.button1);

Pbutton = (Button) Findviewbyid (R.id.button2);

Sbutton.setonclicklistener (this);

Pbutton.setonclicklistener (this);

}

Serializeable Method of passing objects

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 Pass Object method

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);

}

Ammonium button Click event Response

public void OnClick (View v) {

if (v = = Sbutton) {

Serializemethod ();

}else{

Pacelablemethod ();

}

}

}

Code

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Package Com.test.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 ();

}

public void Setupviews () {

Sbutton = (Button) Findviewbyid (R.id.button1);

Pbutton = (Button) Findviewbyid (R.id.button2);

Sbutton.setonclicklistener (this);

Pbutton.setonclicklistener (this);

}

Serializeable Method of passing objects

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 Pass Object method

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);

}

Ammonium button Click event Response

public void OnClick (View v) {

if (v = = Sbutton) {

Serializemethod ();

}else{

Pacelablemethod ();

}

}

}

Code

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Package Com.test.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 ("Your name is:" + mperson.getname () + "" +

"You are:" + mperson.getage ());

Setcontentview (Mtextview);

}

Code

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Package Com.test.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 ("Your name is:" + mperson.getname () + "" +

"You are:" + mperson.getage ());

Setcontentview (Mtextview);

}

}

Code

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Package Com.test.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 () + "" +

"Author is:" + mbook.getauthor () + "" +

"Publishtime is:" + mbook.getpublishtime ()); Setcontentview (Mtextview);

}

}

Copy Code code as follows:

Package Com.test.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 () + "" +

"Author is:" + mbook.getauthor () + "" +

"Publishtime is:" + mbook.getpublishtime ());

Setcontentview (Mtextview);

}

}

Here's the most important part: Modify the Androidmanifest.xml file (add two new ACTIVITY,OBJECTTESTDEMO1,OBJECTTESTDEMO2) and declare the code as follows (14th, 15 lines):

Code

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< XML version= "1.0" encoding= "Utf-8"?>

< manifest xmlns:android= "Http://schemas.android.com/apk/res/android"

Package= "Com.test.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= ". ObjecttestDemo1 "></activity>

< activity android:name= ". ObjecttestDemo2 "></activity>

</application>

< USES-SDK android:minsdkversion= "7"/>

</manifest>

< XML version= "1.0" encoding= "Utf-8"?>

< manifest xmlns:android= "Http://schemas.android.com/apk/res/android"

Package= "Com.test.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= ". ObjecttestDemo1 "></activity>

< activity android:name= ". ObjecttestDemo2 "></activity>

</application>

< USES-SDK android:minsdkversion= "7"/>

</manifest>