Android版本检测\自动更新在线等

http://blog.csdn.net/furongkang/article/details/6886526
不客氣

1. 检测当前版本的信息
    PackageManager packageManager = getPackageManager();
    //getPackageName()是你当前类的包名，0代表是获取版本信息
    PackageInfo packInfo = packageManager.getPackageInfo(getPackageName(), 0);
    当前版本的信息 packInfo.versionCdoe;   2.从服务器获取最新版本号，如果>packInfo.versionCdoe提示用户进行升级

也可以在自己的服务器端写一个单独的版本cgi，程序启动的时候去服务器检查这个cgi的版本号。这样的好处是你在告知用户有新版本的时候，可以提供能多新特性之类的信息

这个在Android上是好实现的，项目中就是用5楼的方法。iPhone就悲剧了⋯⋯

package com.update;import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import com.nc.Data;
import com.nc.R;
import com.http.HTTPRequestHelper;/**
* 检查软件更新
* @author saber
*
*/
public class Update {
//服务器中软件文本信息地址
private static final String BASEURL_VER ="mobile/apk_version.txt";

public Context _context = null;
//老版本号
public int versionCode = 0;
//老版本名
    public String versionName = "";
    //新版本号
    public int newVerCode;
    //新版本名
    public String newVerName;

    private ProgressDialog myDialog;
    private Long fileSize = 1l;
    private int downLoadFileSize;

    private int activity_id;

public Update(Context context, int Id) {
_context = context;
activity_id = Id;
    }
//获取版本号
public static int getVerCode(Context context) {
        int verCode = -1;
        try {
            verCode = context.getPackageManager().getPackageInfo("com.nc", 0).versionCode;
        } catch (NameNotFoundException e) {
            e.printStackTrace();
        }
        return verCode;
    }
    //获取版本名
    public static String getVerName(Context context) {
        String verName = "";
        try {
            verName = context.getPackageManager().getPackageInfo("com.nc", 0).versionName;
        } catch (NameNotFoundException e) {
         e.printStackTrace();
        }
        return verName;
    }   //检查是否有更新
public void check(){
if(activity_id == Data.UPDATE_MORE){
myDialog = new ProgressDialog(_context);
myDialog.setMessage("正在检测更新");
myDialog.setButton("取消", new  DialogInterface.OnClickListener(){ public void onClick(DialogInterface dialog, int which) {
// finish();
} });
myDialog.show();
}
getServerVerCode();
    }
//获取软件名
public static String getApkName(Context context) {
        String verName = context.getResources().getText(R.string.apk_name).toString();
        return verName;
}
//获取服务器端版本号
private void getServerVerCode() {
new Thread(){
public void run() {
HTTPRequestHelper httpHelper_ver = new HTTPRequestHelper(verHandler);
String targetUrl = Data.WEBROOT + BASEURL_VER;
httpHelper_ver.performGet(targetUrl);
};
}.start();
    }

private Handler verHandler = new Handler(){
public void handleMessage(android.os.Message msg) {
String response = msg.getData().getString("RESPONSE"); try {
JSONArray array = new JSONArray(response);
            if (array.length() > 0) {
                JSONObject obj = array.getJSONObject(0);
                try {
                    newVerCode = Integer.parseInt(obj.getString("verCode"));
                    newVerName = obj.getString("verName");
                } catch (Exception e) {
                    newVerCode = -1;
                    newVerName = "";
                }
            }
}catch(JSONException e) {
e.printStackTrace();
}finally{
if(activity_id == Data.UPDATE_MORE){
myDialog.cancel();
}
}
int vercode = getVerCode(_context); // 用到前面第一节写的方法
    if (newVerCode > vercode) {
     doNewVersionUpdate(); // 更新新版本
    } else {
     if(activity_id == Data.UPDATE_MORE){
     notNewVersionShow(); // 提示当前为最新版本
     }
    }
};
};
//不是新版本
private void notNewVersionShow() {
    String verName = getVerName(_context);
    StringBuffer sb = new StringBuffer();
    sb.append("当前版本:");
    sb.append(verName);
    sb.append("\n" + "已是最新版,无需更新!");
    Dialog dialog = new AlertDialog.Builder(_context).setTitle("软件更新")
            .setMessage(sb.toString())// 设置内容
            .setPositiveButton("确定",// 设置确定按钮
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {

                        }
                    }).create();// 创建
    // 显示对话框
    dialog.show();
}   //子函数，若是有新版本，则
private void doNewVersionUpdate() {
    String verName = getVerName(_context);
    StringBuffer sb = new StringBuffer();
    sb.append("当前版本:");
    sb.append(verName);
    sb.append(", 发现新版本:");
    sb.append(newVerName);
    sb.append(", 是否更新?");
    Dialog dialog = new AlertDialog.Builder(_context)
            .setTitle("软件更新")
            .setMessage(sb.toString())
            // 设置内容
            .setPositiveButton("更新",// 设置确定按钮
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,
                                int which) {
                         myDialog = new ProgressDialog(_context);
                         myDialog.setCancelable(false);
                         myDialog.setTitle("正在下载");
                         myDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                            downFile(Data.WEBROOT + "mobile/" + getApkName(_context));
                        }
                    })
            .setNegativeButton("暂不更新",
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,
                                int whichButton) {

                        }
                    }).create();// 创建
    // 显示对话框
    dialog.show();
}
//下载软件
private void downFile(final String url) {
myDialog.show();
new Thread() {
public void run() {
HttpClient client = new DefaultHttpClient();
// params[0]代表连接的url
HttpGet get = new HttpGet(url);
HttpResponse response;
try {
response = client.execute(get);
HttpEntity entity = response.getEntity();
fileSize = entity.getContentLength();
//注意如果值超过int范围即报错
myDialog.setMax(fileSize.intValue());

InputStream is = entity.getContent();
FileOutputStream fileOutputStream = null;
if (is != null) {
File file = new File(Environment.getExternalStorageDirectory(), getApkName(_context));
fileOutputStream = new FileOutputStream(file);
byte[] buf = new byte[1024];
int ch = -1;
while ((ch = is.read(buf)) != -1) {
fileOutputStream.write(buf, 0, ch);
downLoadFileSize += ch;
myDialog.setProgress(downLoadFileSize);
}
}
fileOutputStream.flush();
if (fileOutputStream != null) {
fileOutputStream.close();
}
myDialog.cancel();
downLoadFileSize = 0;
install();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}.start();
}
//安装软件
private void install() {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File("/sdcard/" + getApkName(_context))),
"application/vnd.android.package-archive");
_context.startActivity(intent);
}
}

调试易

Android版本检测\自动更新在线等

解决方案 »

Android版本检测\自动更新 在线等

解决方案 »

Android版本检测\自动更新在线等