Android项目实战手机安全卫士（02）

目录

• 项目结构图
• 源代码
• 运行结果
• 项目源代码

项目结构图

源代码

清单 01.  SplashActivity.java

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package com.coderdream.mobilesafe.activity;   import java.io.IOException; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.ProtocolException; import java.net.URL;   import org.xmlpull.v1.XmlPullParserException;   import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.app.ProgressDialog; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.content.SharedPreferences; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.Window; import android.view.WindowManager; import android.view.animation.AlphaAnimation; import android.widget.RelativeLayout; import android.widget.TextView; import android.widget.Toast;   import com.coderdream.mobilesafe.R; import com.coderdream.mobilesafe.domain.UpdateInfo; import com.coderdream.mobilesafe.engine.UpdateInfoParser;   public class SplashActivity extends Activity {     private TextView tv_splash_version;       private UpdateInfo info;       private static final int GET_INFO_SUCCESS = 10;     private static final int SERVER_ERROR = 11;     private static final int SERVER_URL_ERROR = 12;     private static final int PROTOCOL_ERROR = 13;     private static final int IO_ERROR = 14;     private static final int XML_PARSE_ERROR = 15;     private static final int DOWNLOAD_SUCCESS = 16;     private static final int DOWNLOAD_ERROR = 17;     protected static final String TAG = "SplashActivity";     private long startTime;     private RelativeLayout rl_splash;     private long endTime;     private ProgressDialog pd;       private Handler handler = new Handler() {         public void handleMessage(android.os.Message msg) {             switch (msg.what) {             case XML_PARSE_ERROR:                 Toast.makeText(getApplicationContext(), "xml解析错误", Toast.LENGTH_LONG).show();                 // loadMainUI();                 break;             case IO_ERROR:                 Toast.makeText(getApplicationContext(), "I/O错误", Toast.LENGTH_LONG).show();                 // loadMainUI();                 break;             case PROTOCOL_ERROR:                 Toast.makeText(getApplicationContext(), "协议不支持", Toast.LENGTH_LONG).show();                 // loadMainUI();                 break;             case SERVER_URL_ERROR:                 Toast.makeText(getApplicationContext(), "服务器路径不正确", Toast.LENGTH_LONG).show();                 // loadMainUI();                 break;             case SERVER_ERROR:                 Toast.makeText(getApplicationContext(), "服务器内部异常", Toast.LENGTH_LONG).show();                 // loadMainUI();                 break;             case GET_INFO_SUCCESS:                 String serverversion = info.getVersion();                 String currentversion = getVersion();                 if (currentversion.equals(serverversion)) {                     Log.i(TAG, "版本号相同进入主界面");                     // loadMainUI();                 } else {                     Log.i(TAG, "版本号不相同,升级对话框");                     showUpdateDialog();                 }                 break;               case DOWNLOAD_SUCCESS:                 Log.i(TAG, "文件下载成功");                 // File file = (File) msg.obj;                 // installApk(file);                 break;             case DOWNLOAD_ERROR:                 Toast.makeText(getApplicationContext(), "下载数据异常", Toast.LENGTH_LONG).show();                 // loadMainUI();                 break;             }         };     };       /**      * 显示升级提示的对话框      */     protected void showUpdateDialog() {         // 创建了对话框的构造器         AlertDialog.Builder builder = new Builder(this);         // 设置对话框的提示内容         builder.setIcon(getResources().getDrawable(R.drawable.notification));         // 设置升级标题         builder.setTitle("升级提示");         // 设置升级提示内容         builder.setMessage(info.getDescription());         // 创建下载进度条         pd = new ProgressDialog(SplashActivity.this);         // 设置进度条在显示时的提示消息         pd.setMessage("正在下载");         // 指定显示下载进度条为水平形状         pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);         // 设置升级按钮         builder.setPositiveButton("升级", new OnClickListener() {             public void onClick(DialogInterface dialog, int which) {                 // loadMainUI();             }         });         builder.setNegativeButton("取消", new OnClickListener() {               public void onClick(DialogInterface dialog, int which) {                 // loadMainUI();             }         });         builder.create().show();     }       @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         // 设置为无标题栏         requestWindowFeature(Window.FEATURE_NO_TITLE);         // 设置为全屏模式         getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);           setContentView(R.layout.activity_splash);           rl_splash = (RelativeLayout) findViewById(R.id.rl_splash);         tv_splash_version = (TextView) findViewById(R.id.tv_splash_version);         tv_splash_version.setText("版本号:" + getVersion());           AlphaAnimation aa = new AlphaAnimation(0.3f, 1.0f);         aa.setDuration(2000);         rl_splash.startAnimation(aa);           // 1.连接服务器获取服务器上的配置信息.         new Thread(new CheckVersionTask()) {         }.start();     }       /**      * 连网检查应用的版本号与服务端上的版本号是否相同      *      * @author Administrator      *      */     private class CheckVersionTask implements Runnable {           public void run() {             // 获取Sdcard下的config.xml文件，如果该文件不存在，那么将会自动创建该文件             SharedPreferences sp = getSharedPreferences("config", MODE_PRIVATE);             // 由sp对象来获取autoupdate所对应的boolean值，如果该键不存在，默认返回true             boolean autoupdate = sp.getBoolean("autoupdate", true);             // 自动更新没有开启             if (!autoupdate) {                 try {                     // 睡眠2秒钟的是为了播放动画                     Thread.sleep(2000);                 } catch (InterruptedException e) {                     e.printStackTrace();                 }                 // 睡眠2秒钟播放动画完毕后进入程序主界面                 // loadMainUI();             }             startTime = System.currentTimeMillis();             Message msg = Message.obtain();             try {                 // 获取服务端的配置信息的连接地址                 String serverurl = getResources().getString(R.string.serverurl);                 URL url = new URL(serverurl);                 HttpURLConnection conn = (HttpURLConnection) url.openConnection();                 conn.setRequestMethod("GET");// 设置请求方式                 conn.setConnectTimeout(5000);                 int code = conn.getResponseCode();// 获取响应码                 if (code == 200) {// 响应码为200时，表示与服务端连接成功                     InputStream is = conn.getInputStream();                     info = UpdateInfoParser.getUpdateInfo(is);                     endTime = System.currentTimeMillis();                     long resulttime = endTime - startTime;                     if (resulttime < 2000) {                         try {                             Thread.sleep(2000 - resulttime);                         } catch (InterruptedException e) {                             e.printStackTrace();                         }                     }                       msg.what = GET_INFO_SUCCESS;                     handler.sendMessage(msg);                 } else {                     // 服务器状态错误.                     msg.what = SERVER_ERROR;                     handler.sendMessage(msg);                     endTime = System.currentTimeMillis();                     long resulttime = endTime - startTime;                     if (resulttime < 2000) {                         try {                             Thread.sleep(2000 - resulttime);                         } catch (InterruptedException e) {                             e.printStackTrace();                         }                     }                 }               } catch (MalformedURLException e) {                 e.printStackTrace();                 msg.what = SERVER_URL_ERROR;                 handler.sendMessage(msg);             } catch (ProtocolException e) {                 msg.what = PROTOCOL_ERROR;                 handler.sendMessage(msg);                 e.printStackTrace();             } catch (IOException e) {                 msg.what = IO_ERROR;                 handler.sendMessage(msg);                 e.printStackTrace();             } catch (XmlPullParserException e) {                 msg.what = XML_PARSE_ERROR;                 handler.sendMessage(msg);                 e.printStackTrace();             }         }     }       /**      * <pre>      * 获取当前应用程序的版本号。      * 版本号存在于我们的APK中对应的清单文件中（直接解压APK后，即可看到对应的清单文件），      * 版本号是manifest节点中的android:versionName="1.0"      * 当一个应用程序被装到手机后 ，该apk拷贝到手机的data/app目录下（也就是系统中），      * 如图6。所以想得到版本号，我们需要拿到与系统相关的服务，就可以得到apk中的信息了      *      * </pre>      *      * @return      */     private String getVersion() {         // 得到系统的包管理器。已经得到了apk的面向对象的包装         PackageManager pm = this.getPackageManager();         try {             // 参数一：当前应用程序的包名 参数二：可选的附加消息，这里我们用不到 ，可以定义为0             PackageInfo info = pm.getPackageInfo(getPackageName(), 0);             // 返回当前应用程序的版本号             return info.versionName;         } catch (Exception e) {// 包名未找到的异常，理论上， 该异常不可能会发生             e.printStackTrace();             return "";         }     } }

清单 02. UpdateInfo.java

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package com.coderdream.mobilesafe.domain;   public class UpdateInfo {     private String version;     private String description;     private String apkurl;       public String getVersion() {         return version;     }       public void setVersion(String version) {         this.version = version;     }       public String getDescription() {         return description;     }       public void setDescription(String description) {         this.description = description;     }       public String getApkurl() {         return apkurl;     }       public void setApkurl(String apkurl) {         this.apkurl = apkurl;     } }

清单 03. UpdateInfoParser.java

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package com.coderdream.mobilesafe.engine;   import java.io.IOException; import java.io.InputStream;   import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException;   import android.util.Xml;   import com.coderdream.mobilesafe.domain.UpdateInfo;   /**  *  * 解析XML数据  *  */ public class UpdateInfoParser {     /**      * @param is      *            xml文件的输入流      * @return updateinfo的对象      * @throws XmlPullParserException      * @throws IOException      */     public static UpdateInfo getUpdateInfo(InputStream is) throws XmlPullParserException, IOException {         // 获得一个Pull解析的实例         XmlPullParser parser = Xml.newPullParser();         // 将要解析的文件流传入         parser.setInput(is, "UTF-8");         // 创建UpdateInfo实例，用于存放解析得到的xml中的数据，最终将该对象返回         UpdateInfo info = new UpdateInfo();         // 获取当前触发的事件类型         int type = parser.getEventType();         // 使用while循环，如果获得的事件码是文档结束的话，那么就结束解析         while (type != XmlPullParser.END_DOCUMENT) {             if (type == XmlPullParser.START_TAG) {// 开始元素                 if ("version".equals(parser.getName())) {// 判断当前元素是否是读者需要检索的元素，下同                     // 因为内容也相当于一个节点，所以获取内容时需要调用parser对象的nextText()方法才可以得到内容                     String version = parser.nextText();                     info.setVersion(version);                 } else if ("description".equals(parser.getName())) {                     String description = parser.nextText();                     info.setDescription(description);                 } else if ("apkurl".equals(parser.getName())) {                     String apkurl = parser.nextText();                     info.setApkurl(apkurl);                 }             }             type = parser.next();         }         return info;     } }

清单 03. config.xml

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<?xml version="1.0" encoding="utf-8"?> <resources>       <string name="serverurl">http://192.168.0.101:8080/info.xml</string>   </resources>

运行结果

工程源代码

地址：http://download.csdn.net/detail/xuxiheng/8147099