【移动应用开发技术】Android中怎么实现Activity跳转操作

【移动应用开发技术】Android中怎么实现Activity跳转操作

Android中怎么实现Activity跳转操作，针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。Android中提供一个叫Intent的类来实现屏幕之间的跳转，下面是一个简单的示例：在应用中增加一个Activity（名字为.ForwardTarget），这需要修改AndroidManifest.xml文件，如下：AndroidActivity跳转代码示例：<

?xml

version="1.0"

encoding="utf-8"?>

<

manifest

xmlns:android="<

A

href="/apk/res/android">/apk/res/android<

/A>"

package="com.ray.forward"

android:versionCode="1"

android:versionName="1.0">

<

application

android:icon="@drawable/icon"

android:label="@string/app_name">

<

activity

android:name=".androidForward"

android:label="@string/app_name">

<

intent-filter>

<

action

android:name="ent.action.MAIN"

/>

<

category

android:name="ent.category.LAUNCHER"

/>

<

/intent-filter>

<

/activity>

<

activity

android:name=".ForwardTarget">

<

/activity>

<

/application>

<

uses-sdk

android:minSdkVersion="3"

/>

<

/manifest>

<

?xml

version="1.0"

encoding="utf-8"?>

<

manifest

xmlns:android="/apk/res/android"

package="com.ray.forward"

android:versionCode="1"

android:versionName="1.0">

<

application

android:icon="@drawable/icon"

android:label="@string/app_name">

<

activity

android:name=".androidForward"

android:label="@string/app_name">

<

intent-filter>

<

action

android:name="ent.action.MAIN"

/>

<

category

android:name="ent.category.LAUNCHER"

/>

<

/intent-filter>

<

/activity>

<

activity

android:name=".ForwardTarget">

<

/activity>

<

/application>

<

uses-sdk

android:minSdkVersion="3"

/>

<

/manifest>

<

?xml

version="1.0"

encoding="utf-8"?>

<

manifest

xmlns:android="<

A

href="/apk/res/android">/apk/res/android<

/A>"

package="com.ray.forward"

android:versionCode="1"

android:versionName="1.0">

<

application

android:icon="@drawable/icon"

android:label="@string/app_name">

<

activity

android:name=".androidForward"

android:label="@string/app_name">

<

intent-filter>

<

action

android:name="ent.action.MAIN"

/>

<

category

android:name="ent.category.LAUNCHER"

/>

<

/intent-filter>

<

/activity>

<

activity

android:name=".ForwardTarget">

<

/activity>

<

/application>

<

uses-sdk

android:minSdkVersion="3"

/>

<

/manifest>

<

?xml

version="1.0"

encoding="utf-8"?>

<

manifest

xmlns:android="/apk/res/android"

package="com.ray.forward"

android:versionCode="1"

android:versionName="1.0">

<

application

android:icon="@drawable/icon"

android:label="@string/app_name">

<

activity

android:name=".androidForward"

android:label="@string/app_name">

<

intent-filter>

<

action

android:name="ent.action.MAIN"

/>

<

category

android:name="ent.category.LAUNCHER"

/>

<

/intent-filter>

<

/activity>

<

activity

android:name=".ForwardTarget">

<

/activity>

<

/application>

<

uses-sdk

android:minSdkVersion="3"

/>

<

/manifest>

然后在layout中的main加入一个id为leah2的按钮，另外再创建一个任意的layout（将要跳转到得layout）,我取名为leah2。接下来是两个类，一个是AndroidForward，另一个是将要跳转到得ForwardTarget，AndroidActivity跳转实现的代码分别如下：AndroidForw：

package

com.ray.forward;

import

android.app.Activity;

import

android.content.Intent;

import

android.os.Bundle;

import

android.view.View;

import

android.widget.Button;

public

class

androidForward

extends

Activity

{

/**

Called

when

the

activity

is

first

created.

*/

@Override

public

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button

btn1

=(Button)findViewById(R.id.leah2);

btn1.setOnClickListener(new

View.OnClickListener(){

@Override

public

void

onClick(View

v)

{

Intent

intent

=

new

Intent();

intent.setClass(androidForward.this,

ForwardTarget.class);

startActivity(intent);

finish();//停止当前的Activity,如果不写,则按返回键会跳转回原来的Activity

}

});

}

}

package

com.ray.forward;

import

android.app.Activity;

import

android.content.Intent;

import

android.os.Bundle;

import

android.view.View;

import

android.widget.Button;

public

class

androidForward

extends

Activity

{

/**

Called

when

the

activity

is

first

created.

*/

@Override

public

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button

btn1

=(Button)findViewById(R.id.leah2);

btn1.setOnClickListener(new

View.OnClickListener(){

@Override

public

void

onClick(View

v)

{

Intent

intent

=

new

Intent();

intent.setClass(androidForward.this,

ForwardTarget.class);

startActivity(intent);

finish();//停止当前的Activity,如果不写,则按返回键会跳转回原来的Activity

}

});

}

}

ForwardTarget：

package

com.ray.forward;

import

android.app.Activity;

import

android.os.Bundle;

public

class

ForwardTarget

extends

Activity{

@Override

protected

void

onCreate(Bundle

savedInstanceState)

{

//

TODO

Auto-generated

method

stub

super.onCreate(savedInstanceState);

setContentView(R.layout.leah2);

}

}

AndroidForw：

package

com.ray.forward;

import

android.app.Activity;

import

android.content.Intent;

import

android.os.Bundle;

import

android.view.View;

import

android.widget.Button;

public

class

androidForward

extends

Activity

{

/**

Called

when

the

activity

is

first

created.

*/

@Override

public

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button

btn1

=(Button)findViewById(R.id.leah2);

btn1.setOnClickListener(new

View.OnClickListener(){

@Override

public

void

onClick(View

v)

{

Intent

intent

=

new

Intent();

intent.setClass(androidForward.this,

ForwardTarget.class);

startActivity(intent);

finish();//停止当前的Activity,如果不写,则按返回键会跳转回原来的Activity

}

});

}

}

package

com.ray.forward;

import

android.app.Activity;

import

android.content.Intent;

import

android.os.Bundle;

import

android.view.View;

import

android.widget.Button;

public

class

androidForward

extends

Activity

{

/**

Called

when

the

activity

is

first

created.

*/

@Override

public

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button