And.He

package com.and.java.demo;

public class 测试 {
    public static void main(String[] args) {
        System.out.println(new 测试().test());
    }

    public String test() {
        try {
            System.out.println("try{...}");
            return "try";
        } catch (Exception e) {
            System.out.println("catch{...}");
            return "catch";
        } finally {
            System.out.println("finally{...}");
        }
    }
}

try{...}
finally{...}
try

package com.and.java.demo;

public class 测试 {
    public static void main(String[] args) {
        System.out.println(new 测试().test());
    }

    public String test() {
        try {
            System.out.println("try{...}");
            return "try";
        } catch (Exception e) {
            System.out.println("catch{...}");
            return "catch";
        } finally {
            System.out.println("finally{...}");
            return "finally";
        }
    }
}

try{...}
finally{...}
finally

package com.and.java.demo;

public class 测试 {
    public static void main(String[] args) {
        System.out.println(new 测试().test());
    }

    public String test() {
        String result = "";
        try {
            result = "try";
            return result;
        } catch (Exception e) {
            result = "catch";
            return result;
        } finally {
            result = "finally";
        }
    }
}

package com.and.java.demo;

public class 测试 {
    public static void main(String[] args) {
        System.out.println(new 测试().test());
    }

    public String test() {
        String result = "";
        try {
            result = "try";
            return result;
        } catch (Exception e) {
            result = "catch";
            return result;
        } finally {
            System.out.println("t1->"+result);
            result = "finally";
            System.out.println("t2->"+result);
        }
    }
}

t1->try
t2->finally
try

<?xml version="1.0" encoding="GBK"?>  
<?xml-stylesheet type="text/css" href="http://news.163.com/css/allrss.css"?>  
<rss version="2.0">  
<channel>  
<title>网易头条新闻</title>  
<link>http://news.163.com/</link>  
<description>网易头条新闻</description>  
<pubDate>Mon, 2 Apr 2012 01:07:10 GMT</pubDate>  
<lastBuildDate>Mon, 2 Apr 2012 01:07:10 GMT</lastBuildDate>  
<item id="1">  
<title>...</title>  
<link>http://news.163.com/12/0402/08/7U2TBKQF0001124J.html</link>  
<description>......</description>  
<pubDate>2012-04-02 09:07:10</pubDate>  
</item>  
</channel>  
</rss> 

package com.and.netease.rss;

public class RSSItem {

    private String title;
    private String link;
    private String description;
    private String pubDate;

    public RSSItem() {
        super();
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getLink() {
        return link;
    }

    public void setLink(String link) {
        this.link = link;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public String getPubDate() {
        return pubDate;
    }

    public void setPubDate(String pubDate) {
        this.pubDate = pubDate;
    }

    @Override
    public String toString() {
        return "RSSItem [title=" + title + ", link=" + link + ", description="
                + description + ", pubDate=" + pubDate + "]";
    }

}

package com.and.netease.rss;

import java.util.ArrayList;
import java.util.List;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

import android.text.Html;

public class RSSHandler extends DefaultHandler {

    private List<RSSItem> list;
    private RSSItem item;
    private String tag = "";
    
    private StringBuffer buffer;
    @Override
    public void characters(char[] ch, int start, int length)
            throws SAXException {
        super.characters(ch, start, length);
        if(item!=null){
            String data = new String(ch,start,length);
            if(tag.equals("title")){
                item.setTitle(data);
            }else if(tag.equals("link")){
                item.setLink(data);
            }else if(tag.equals("description")){
//                item.setDescription(data);
                buffer.append(Html.fromHtml(data));
            }else if(tag.equals("pubDate")){
                item.setPubDate(data);
            }
        }
    }

    @Override
    public void endDocument() throws SAXException {
        super.endDocument();
    }

    @Override
    public void endElement(String uri, String localName, String qName)
            throws SAXException {
        super.endElement(uri, localName, qName);
        if(localName.equals("item")){
            item.setDescription(buffer.toString());
            list.add(item);
            item = null;
            buffer = null;
        }
        tag = "";
    }

    @Override
    public void startDocument() throws SAXException {
        super.startDocument();
        list = new ArrayList<RSSItem>();
    }

    @Override
    public void startElement(String uri, String localName, String qName,
            Attributes attributes) throws SAXException {
        super.startElement(uri, localName, qName, attributes);
        if(localName.equals("item")){
            item = new RSSItem();
            buffer = new StringBuffer();
        }
        tag = localName;
    }
    
    public List<RSSItem> getData(){
        return list;
    }

}

intent = new Intent(TabNewsActivity.this, TabNewsTopActivity.class);
        page = getLocalActivityManager().startActivity("activity1", intent).getDecorView();
        LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
        layout_news_main.addView(page, params);

viewSwitcher = (ViewSwitcher) findViewById(R.id.viewswitcher_news_top);
        listView = new MyListView(this);
        ...
        viewSwitcher.addView(listView);
        viewSwitcher.addView(getLayoutInflater().inflate(R.layout.layout_progress_page, null));
        viewSwitcher.showNext();

package com.and.netease;

import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ImageButton;
import android.widget.ViewSwitcher;

public class NewsContentActivity extends Activity {

    ImageButton btn_back;
    WebView webView;
    String content_url;

    ViewSwitcher viewSwitcher;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_newscontent);
        initViews();
    }

    private void initViews() {
        btn_back = (ImageButton) findViewById(R.id.btn_newscontent_back);
        btn_back.setOnClickListener(listener);

        viewSwitcher = (ViewSwitcher) findViewById(R.id.viewSwitcher);

        content_url = getIntent().getStringExtra("content_url");
        webView = new WebView(this);

        // 向ViewSwitcher中添加两个View，用来切换
        viewSwitcher.addView(webView);
        viewSwitcher.addView(getLayoutInflater().inflate(
                R.layout.layout_progress_page, null));
        WebSettings settings = webView.getSettings();
        settings.setJavaScriptEnabled(true);

        webView.setWebViewClient(client);
        webView.loadUrl(content_url);
    }

    private WebViewClient client = new WebViewClient() {

        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            viewSwitcher.showPrevious();
        }

        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
            viewSwitcher.showNext();
        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            return super.shouldOverrideUrlLoading(view, url);
        }

    };

    private OnClickListener listener = new OnClickListener() {

        @Override
        public void onClick(View v) {
            NewsContentActivity.this.setResult(RESULT_OK);
            NewsContentActivity.this.finish();
        }
    };

    public void onBackPressed() {
        if (webView.canGoBack()) {
            webView.goBack();
        } else {
            NewsContentActivity.this.setResult(RESULT_OK);
            NewsContentActivity.this.finish();
        }
    };
}

<?xml version="1.0" encoding="UTF-8"?>  
<students>  
    <student id="1003">  
        <name>ZhangSan</name>  
        <age>23</age>
        <score>89</score>  
    </student>
    <student id="1004">  
        <name>LiSi</name>  
        <age>24</age>
        <score>72</score>  
    </student>
    <student id="1005">  
        <name>WangWu</name>  
        <age>25</age>
        <score>79</score>  
    </student>
</students>

package com.and.xml;

public class Student {

    private int id;
    private String name;
    private int age;
    private float score;

    public Student() {
        super();
    }

    public Student(int id, String name, int age, float score) {
        super();
        this.id = id;
        this.name = name;
        this.age = age;
        this.score = score;
    }

    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;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public float getScore() {
        return score;
    }

    public void setScore(float score) {
        this.score = score;
    }

    @Override
    public String toString() {
        // TODO Auto-generated method stub
        return "Id:" + this.id + ",Name:" + this.name + ",Age" + this.age
                + ",Score:" + this.score;
    }
}

package com.and.test;

import java.io.InputStream;
import java.util.List;

import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;

import com.and.xml.DomParseService;
import com.and.xml.PullParseService;
import com.and.xml.SaxParserService;
import com.and.xml.Student;

import android.test.AndroidTestCase;
import android.util.Log;

/**
 * 测试三种解析方式（Pull、SAX、Dom）
 * 
 * @author And 2012-02-29
 */
public class TestParseService extends AndroidTestCase {
    private static final String TAG = "testService";
    InputStream input;
    List<Student> students;

    public void init() throws Exception {
        input = this.getContext().getAssets().open("students.xml");
    }

    // 测试Pull解析方式
    public void testPull() throws Exception {
        init();
        students = PullParseService.getStudents(input);
        for (Student stu : students) {
            Log.i(TAG, stu.toString());
        }
    }

    // 测试SAX解析方式
    public void testSAX() throws Exception {
        init();
        SAXParserFactory fac = SAXParserFactory.newInstance();
        XMLReader reader = fac.newSAXParser().getXMLReader();
        SaxParserService saxHandler = new SaxParserService();
        reader.setContentHandler(saxHandler);
        reader.parse(new InputSource(input));
        students = saxHandler.getParseData();
        for (Student stu : students) {
            Log.i(TAG, stu.toString());
        }
    }

    // 测试DOM解析方式
    public void testDom() throws Exception {
        init();
        students = DomParseService.getPersonsByParseXml(input);
        for (Student stu : students) {
            Log.i(TAG, stu.toString());
        }
    }

}

<instrumentation android:targetPackage="com.and.xml" android:name="android.test.InstrumentationTestRunner"></instrumentation>

<uses-library android:name="android.test.runner"/>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.and.xml"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="7" />
    <instrumentation android:targetPackage="com.and.xml" android:name="android.test.InstrumentationTestRunner"></instrumentation>

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name="com.and.xml.MainActivity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <uses-library android:name="android.test.runner"/>
    </application>

</manifest>

package com.and.xml;

import java.util.ArrayList;
import java.util.List;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * SAX解析示例
 * 
 * @author Administrator
 * 
 */
public class SaxParserService extends DefaultHandler {

    List<Student> data = null;
    Student stu = null;
    String tag = "";

    @Override
    public void characters(char[] ch, int start, int length) throws SAXException {
        super.characters(ch, start, length);
        if (stu != null) {
            String str = new String(ch, start, length);
            if (tag.equals("name")) {
                stu.setName(str);
            } else if (tag.equals("age")) {
                stu.setAge(Integer.parseInt(str));
            } else if (tag.equals("score")) {
                stu.setScore(Float.parseFloat(str));
            }
        }
    }

    @Override
    public void endDocument() throws SAXException {
        super.endDocument();
    }

    @Override
    public void endElement(String uri, String localName, String qName)
            throws SAXException {
        super.endElement(uri, localName, qName);
        if (localName.equals("student") && stu != null) {
            data.add(stu);
            stu = null;
        }
        tag = "";
    }

    @Override
    public void startDocument() throws SAXException {
        super.startDocument();
        data = new ArrayList<Student>();
    }

    @Override
    public void startElement(String uri, String localName, String qName,
            Attributes attributes) throws SAXException {
        super.startElement(uri, localName, qName, attributes);
        tag = localName;
        if (localName.equals("student")) {
            stu = new Student();
        }
        if (attributes.getValue(0) != null) {
            stu.setId(Integer.parseInt(attributes.getValue(0)));
        }
    }

    public List<Student> getParseData() {
        return data;
    }

}

package com.and.xml;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

/**
 * DOM解析示例
 */
/**
 * DOM解析器在解析XML文档时，会把文档中的所有元素，按照其出现的层次关系，解析成一个个Node对象(节点)。Node对象提供了一系列常量来代表结点的类型
 * ，当开发人员获得某个Node类型后，就可以把Node节点转换成相应节点对象(Node的子类对象)，以便于调用其特有的方法。
 * Node对象提供了相应的方法去获得它的父结点或子结点。编程人员通过这些方法就可以读取整个XML文档的内容、或添加、修改、删除XML文档的内容.
 * 
 * 缺点： 一次性的完全加载整个xml文件，需要消耗大量的内存。
 */
public class DomParseService {

    public static List<Student> getPersonsByParseXml(InputStream is) throws Exception {
        List<Student> persons = new ArrayList<Student>();
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        try {
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document document = builder.parse(is);
            Element root = document.getDocumentElement();
            NodeList items = root.getElementsByTagName("student");// 得到所有person节点
            for (int i = 0; i < items.getLength(); i++) {
                Student Student = new Student();
                Element personNode = (Element) items.item(i);
                Student.setId(new Integer(personNode.getAttribute("id")));
                // 获取person节点下的所有子节点(标签之间的空白节点和name/age元素)
                NodeList childsNodes = personNode.getChildNodes();
                for (int j = 0; j < childsNodes.getLength(); j++) {
                    Node node = (Node) childsNodes.item(j); // 判断是否为元素类型
                    if (node.getNodeType() == Node.ELEMENT_NODE) {
                        Element childNode = (Element) node;
                        // 判断是否name元素
                        if ("name".equals(childNode.getNodeName())) {
                            // 获取name元素下Text节点,然后从Text节点获取数据
                            Student.setName(childNode.getFirstChild().getNodeValue());
                        } else if ("age".equals(childNode.getNodeName())) {
                            Student.setAge(new Short(childNode.getFirstChild().getNodeValue()));
                        } else if ("score".equals(childNode.getNodeName())) {
                            Student.setScore(Float.parseFloat(childNode.getFirstChild().getNodeValue()));
                        }
                    }
                }
                persons.add(Student);
            }
            is.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return persons;
    }
}

<receiver android:name="MyReceiver" >
            <intent-filter >
                <action android:name="com.and.android.intent.action.TEST" />
                <action android:name="android.net.wifi.WIFI_STATE_CHANGED" />
            </intent-filter>
</receiver>

BroadcastReceiver receiver = new MyReceiver();
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_SCREEN_OFF);//这里添加系统广播，当屏幕关闭的时候发送
filter.addAction(ACTION_INTENT_TEST);
registerReceiver(receiver, filter);