版本更新

最新推荐文章于 2024-11-28 17:03:48 发布

Leanper

最新推荐文章于 2024-11-28 17:03:48 发布

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package com.example.update;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import org.xmlpull.v1.XmlPullParser;

import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Handler;
import android.os.Message;
import android.util.Xml;
/**
*
* *
* Simple to Introduction
* @ProjectName: [Update]
* @Package:      [com.example.update.VersionUpdateUtils.java]
* @ClassName:    [VersionUpdateUtils]
* @Description: [版本更新的工具类]
* @Author:       [Leanper]
* @CreateDate:   [2016-7-28 上午9:19:21]
* @UpdateUser:   [Leanper]
* @UpdateDate:   [2016-7-28 上午9:19:21]
* @UpdateRemark: [说明本次修改内容]
* @Version:      [v1.0]
*/
public class VersionUpdateUtils{

   Handler handler = new Handler() {
       @Override
       public void handleMessage(Message msg) {
           String xml = (String) msg.obj;
           jiexiApkData(xml);
       }
   };

   private String apkUrl = "http://www.oschina.net/MobileAppVersion.xml";

   private Update update;

   private Context context;

   /**
   * 解析apk
   *
   * @param xml
   */
   public void jiexiApkData(String xml) {
       try {
           XmlPullParser newPullParser = Xml.newPullParser();
           ByteArrayInputStream bais = new ByteArrayInputStream(xml.getBytes());
           newPullParser.setInput(bais, "utf-8");
           int eventType = newPullParser.getEventType();
           while (eventType != XmlPullParser.END_DOCUMENT) {
               String name = newPullParser.getName();
               switch (eventType) {
               case XmlPullParser.START_TAG:
                   if ("android".equals(name)) {
                       update = new Update();
                   } else if ("versionCode".equals(name)) {
                       update.setVersionCode(newPullParser.nextText());
                   } else if ("versionName".equals(name)) {
                       update.setVersionName(newPullParser.nextText());
                   } else if ("downloadUrl".equals(name)) {
                       update.setDownloadUrl(newPullParser.nextText());
                   } else if ("updateLog".equals(name)) {
                       update.setUpdateLog(newPullParser.nextText());
                   }
                   break;
               }
               eventType = newPullParser.next();
           }
       } catch (Exception e) {
           e.printStackTrace();
       }
       // 判断更新
       panduanUpdate();
   }

   /**
   * 请求apk信息
   */
   public void reguestAPKData(Context context) {
       this.context=context;
       new Thread() {
           @Override
           public void run() {
               try {
                   URL url = new URL(apkUrl);
                   HttpURLConnection conn = (HttpURLConnection) url
                           .openConnection();
                   conn.setConnectTimeout(5000);
                   ByteArrayOutputStream baos = new ByteArrayOutputStream();
                   InputStream is = conn.getInputStream();
                   byte[] buffer = new byte[1024];
                   int len = -1;
                   while ((len = is.read(buffer)) != -1) {
                       baos.write(buffer, 0, len);
                   }
                   Message message = handler.obtainMessage();
                   message.obj = baos.toString();
                   handler.sendMessage(message);
               } catch (IOException e) {
                   e.printStackTrace();
               }
           }
       }.start();
   }

   /**
   * 安装apk
   */

   protected void installApk(File file) {

       Intent intent = new Intent();

       // 执行动作

       intent.setAction(Intent.ACTION_VIEW);

       // 执行的数据类型

       intent.setDataAndType(Uri.fromFile(file),
               "application/vnd.android.package-archive");

       context.startActivity(intent);

   }

   protected void downLoadApk() {

       final ProgressDialog pd; // 进度条对话框

       pd = new ProgressDialog(context);

       pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);

       pd.setMessage("正在下载更新");

       pd.show();
       // 进行下载操作
       new Thread() {

           @Override
           public void run() {

               try {
                   // 下载
                   File file = DownLoadManager.getFileFromServer(
                           update.getDownloadUrl(), pd);

                   sleep(3000);
                   // 安装
                   installApk(file);

                   pd.dismiss(); // 结束掉进度条对话框

               } catch (Exception e) {

               }

           }
       }.start();
   }

   /**
   * 提醒更新的对话框
   */
   private void initAlert() {
       try {
           AlertDialog.Builder builder = new AlertDialog.Builder(context);
           builder.setTitle("软件版本更新");
           builder.setMessage(update.getUpdateLog());
           builder.setPositiveButton("立即更新",
                   new DialogInterface.OnClickListener() {
                       @Override
                       public void onClick(DialogInterface dialog, int which) {
                           // 点击立即下载更新包
                           downLoadApk();
                       }
                   });
           builder.setNegativeButton("以后再说",
                   new DialogInterface.OnClickListener() {
                       @Override
                       public void onClick(DialogInterface dialog, int which) {

                       }
                   });

           AlertDialog alertDialog = builder.create();
           alertDialog.show();
       } catch (Exception e) {
           e.printStackTrace();
       }
   }

   /**
   * 获得本应用的版本信息
   */
   private void panduanUpdate() {
       try {
           PackageManager packageManager = App.getContext()
                   .getPackageManager();
           PackageInfo packInfo = packageManager.getPackageInfo(App
                   .getContext().getPackageName(), 0);
           String versionName = packInfo.versionName;
           if (!versionName.equals(update.getVersionName())) {
               initAlert();
           }
       } catch (PackageManager.NameNotFoundException e) {
           e.printStackTrace();
       }
   }

}

package com.example.update;

import android.app.ProgressDialog;
import android.os.Environment;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

/**
* 下载管理
*
*/
public class DownLoadManager {
    public static File getFileFromServer(String path, ProgressDialog pd) throws Exception{

        //濡傛灉鐩哥瓑鐨勮瘽琛ㄧず褰撳墠鐨剆dcard鎸傝浇鍦ㄦ墜鏈轰笂骞朵笖鏄彲鐢ㄧ殑

        if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){

            URL url = new URL(path);

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();

            conn.setConnectTimeout(5000);

            //鑾峰彇鍒版枃浠剁殑澶у皬

            pd.setMax(conn.getContentLength());

            InputStream is = conn.getInputStream();

            File file = new File(Environment.getExternalStorageDirectory(), "updata.apk");

            FileOutputStream fos = new FileOutputStream(file);

            BufferedInputStream bis = new BufferedInputStream(is);

            byte[] buffer = new byte[1024];

            int len ;

            int total=0;

            while((len =bis.read(buffer))!=-1){

                fos.write(buffer, 0, len);

                total+= len;

                //鑾峰彇褰撳墠涓嬭浇閲�
                pd.setProgress(total);


            }

            fos.close();

            bis.close();

            is.close();

            return file;

        }

        else{

            return null;

        }

    }
}

//在applicationl=里设置上下文

public class App extends Application {
   private static Context context;

   @Override
   public void onCreate() {
       // TODO Auto-generated method stub
       super.onCreate();
       context = this.getApplicationContext();
   }
   public static Context getContext(){
       return context;

   }

//更新的实体类

public class Update {
    private String versionCode;

    private String versionName;

    private String downloadUrl;

    private String updateLog;

    public String getVersionCode() {
        return versionCode;
    }

    public void setVersionCode(String versionCode) {
        this.versionCode = versionCode;
    }

    public String getVersionName() {
        return versionName;
    }

    public void setVersionName(String versionName) {
        this.versionName = versionName;
    }

    public String getDownloadUrl() {
        return downloadUrl;
    }

    public void setDownloadUrl(String downloadUrl) {
        this.downloadUrl = downloadUrl;
    }

    public String getUpdateLog() {
        return updateLog;
    }

    public void setUpdateLog(String updateLog) {
        this.updateLog = updateLog;
    }
}

最后需要添加权限

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>