android 在线升级借助开源中国App源码

android 在线升级借助开源中国App源码分析如下:

1: checkAppUpdate 检查是或需要升级

        // 网络连接判断
        if (appContext.isNetworkConnected()) {
            // 检查新版本
            if (appContext.isCheckUp()) {
                   UpdateManager.getUpdateManager().checkAppUpdate(this, false);
            }
        }

2: UpdateManager类

package lcl.android.core;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.DecimalFormat;

import lcl.android.R;
import lcl.android.api.ApiClient;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

/**
* 应用程序更新工具包
*
*/
public class UpdateManager {
    private static final int DOWN_NOSDCARD = 0;
    private static final int DOWN_UPDATE = 1;
    private static final int DOWN_OVER = 2;
    private static final int DIALOG_TYPE_LATEST = 0;
    private static final int DIALOG_TYPE_FAIL = 1;

    private static UpdateManager updateManager;

    private Context mContext;
    // 通知对话框
    private Dialog noticeDialog;
    // 下载对话框
    private Dialog downloadDialog;
    // '已经是最新' 或者 '无法获取最新版本' 的对话框
    private Dialog latestOrFailDialog;
    // 进度条
    private ProgressBar mProgress;
    // 显示下载数值
    private TextView mProgressText;
    // 查询动画
    private ProgressDialog mProDialog;
    // 进度值
    private int progress;
    // 下载线程
    private Thread downLoadThread;
    // 终止标记
    private boolean interceptFlag;
    // 提示语
    private String updateMsg = "";
    // 返回的安装包url
    private String apkUrl = "";
    // 下载包保存路径
    private String savePath = "";
    // apk保存完整路径
    private String apkFilePath = "";
    // 临时下载文件路径
    private String tmpFilePath = "";
    // 下载文件大小
    private String apkFileSize;
    // 已下载文件大小
    private String tmpFileSize;

    private String curVersionName = "";
    private int curVersionCode;
    private Update mUpdate;

    //单利模式

    public static UpdateManager getUpdateManager() {
        if (updateManager == null) {
            updateManager = new UpdateManager();
        }
        updateManager.interceptFlag = false;
        return updateManager;
    }

    private Handler mHandler = new Handler() {
        public void handleMessage(Message msg) {
            switch (msg.what) {
            case DOWN_UPDATE:
                mProgress.setProgress(progress);
                mProgressText.setText(tmpFileSize + "/" + apkFileSize);
                break;
            case DOWN_OVER:
                downloadDialog.dismiss();
                installApk();
                break;
            case DOWN_NOSDCARD:
                downloadDialog.dismiss();
                Toast.makeText(mContext, "无法下载安装文件，请检查SD卡是否挂载", 3000).show();
                break;
            }
        };
    };

    /**
     * 获取当前客户端版本信息
     */
    private void getCurrentVersion() {
        try {
            PackageInfo info = mContext.getPackageManager().getPackageInfo(
                    mContext.getPackageName(), 0);
            curVersionName = info.versionName;
            curVersionCode = info.versionCode;
        } catch (NameNotFoundException e) {
            e.printStackTrace(System.err);
        }
    }

    /**
     * 检查App更新
     *
     * @param context
     * @param isShowMsg
     *            是否显示提示消息
     */
    public void checkAppUpdate(Context context, final boolean isShowMsg) {
        this.mContext = context;
        getCurrentVersion();
        if (isShowMsg) {
            if (mProDialog == null)
                mProDialog = ProgressDialog.show(mContext, null, "正在检测，请稍后...",
                        true, true);
            else if (mProDialog.isShowing()
                    || (latestOrFailDialog != null && latestOrFailDialog
                            .isShowing()))
                return;
        }
        final Handler handler = new Handler() {
            public void handleMessage(Message msg) {
                // 进度条对话框不显示 - 检测结果也不显示
                if (mProDialog != null && !mProDialog.isShowing()) {
                    return;
                }
                // 关闭并释放释放进度条对话框
                if (isShowMsg && mProDialog != null) {
                    mProDialog.dismiss();
                    mProDialog = null;
                }
                // 显示检测结果
                if (msg.what == 1) {
                    mUpdate = (Update) msg.obj;
                    if (mUpdate != null) {
                        if (curVersionCode < mUpdate.getVersionCode()) {
                            apkUrl = mUpdate.getDownloadUrl();
                            updateMsg = mUpdate.getUpdateLog();
                            showNoticeDialog();
                        } else if (isShowMsg) {
                            showLatestOrFailDialog(DIALOG_TYPE_LATEST);
                        }
                    }
                } else if (isShowMsg) {
                    showLatestOrFailDialog(DIALOG_TYPE_FAIL);
                }
            }
        };
        new Thread() {
            public void run() {
                Message msg = new Message();
                try {
                    Update update = ApiClient
                            .checkVersion((AppContext) mContext
                                    .getApplicationContext());
                    msg.what = 1;
                    msg.obj = update;
                } catch (Exception e) {
                    e.printStackTrace();
                }
                handler.sendMessage(msg);
            }
        }.start();
    }

    /**
     * 显示版本更新通知对话框
     */
    private void showNoticeDialog() {
        AlertDialog.Builder builder = new Builder(mContext);
        builder.setTitle("软件版本更新");
        builder.setMessage(updateMsg);
        builder.setPositiveButton("立即更新", new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                showDownloadDialog();
            }
        });
        builder.setNegativeButton("以后再说", new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        noticeDialog = builder.create();
        noticeDialog.show();
    }

    /**
     * 显示下载对话框
     */
    private void showDownloadDialog() {
        AlertDialog.Builder builder = new Builder(mContext);
        builder.setTitle("正在下载新版本");

        final LayoutInflater inflater = LayoutInflater.from(mContext);
        View v = inflater.inflate(R.layout.update_progress, null);
        mProgress = (ProgressBar) v.findViewById(R.id.update_progress);
        mProgressText = (TextView) v.findViewById(R.id.update_progress_text);

        builder.setView(v);
        builder.setNegativeButton("取消", new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                interceptFlag = true;
            }
        });
        builder.setOnCancelListener(new OnCancelListener() {
            @Override
            public void onCancel(DialogInterface dialog) {
                dialog.dismiss();
                interceptFlag = true;
            }
        });
        downloadDialog = builder.create();
        downloadDialog.setCanceledOnTouchOutside(false);
        downloadDialog.show();

        downloadApk();
    }

    /**
     * 显示'已经是最新'或者'无法获取版本信息'对话框
     */
    private void showLatestOrFailDialog(int dialogType) {
        if (latestOrFailDialog != null) {
            // 关闭并释放之前的对话框
            latestOrFailDialog.dismiss();
            latestOrFailDialog = null;
        }
        AlertDialog.Builder builder = new Builder(mContext);
        builder.setTitle("系统提示");
        if (dialogType == DIALOG_TYPE_LATEST) {
            builder.setMessage("您当前已经是最新版本");
        } else if (dialogType == DIALOG_TYPE_FAIL) {
            builder.setMessage("无法获取版本更新信息");
        }
        builder.setPositiveButton("确定", null);
        latestOrFailDialog = builder.create();
        latestOrFailDialog.show();
    }

    private Runnable mdownApkRunnable = new Runnable() {
        @Override
        public void run() {
            try {
                String apkName = "OSChinaApp_" + mUpdate.getVersionName()
                        + ".apk";
                String tmpApk = "OSChinaApp_" + mUpdate.getVersionName()
                        + ".tmp";
                // 判断是否挂载了SD卡
                String storageState = Environment.getExternalStorageState();
                if (storageState.equals(Environment.MEDIA_MOUNTED)) {
                    savePath = Environment.getExternalStorageDirectory()
                            .getAbsolutePath() + "/OSChina/Update/";
                    File file = new File(savePath);
                    if (!file.exists()) {
                        file.mkdirs();
                    }
                    apkFilePath = savePath + apkName;
                    tmpFilePath = savePath + tmpApk;
                }

                // 没有挂载SD卡，无法下载文件
                if (apkFilePath == null || apkFilePath == "") {
                    mHandler.sendEmptyMessage(DOWN_NOSDCARD);
                    return;
                }

                File ApkFile = new File(apkFilePath);

                // 是否已下载更新文件
                if (ApkFile.exists()) {
                    downloadDialog.dismiss();
                    installApk();
                    return;
                }

                // 输出临时下载文件
                File tmpFile = new File(tmpFilePath);
                FileOutputStream fos = new FileOutputStream(tmpFile);

                URL url = new URL(apkUrl);
                HttpURLConnection conn = (HttpURLConnection) url
                        .openConnection();
                conn.connect();
                int length = conn.getContentLength();
                InputStream is = conn.getInputStream();

                // 显示文件大小格式：2个小数点显示
                DecimalFormat df = new DecimalFormat("0.00");
                // 进度条下面显示的总文件大小
                apkFileSize = df.format((float) length / 1024 / 1024) + "MB";

                int count = 0;
                byte buf[] = new byte[1024];

                do {
                    int numread = is.read(buf);
                    count += numread;
                    // 进度条下面显示的当前下载文件大小
                    tmpFileSize = df.format((float) count / 1024 / 1024) + "MB";
                    // 当前进度值
                    progress = (int) (((float) count / length) * 100);
                    // 更新进度
                    mHandler.sendEmptyMessage(DOWN_UPDATE);
                    if (numread <= 0) {
                        // 下载完成 - 将临时下载文件转成APK文件
                        if (tmpFile.renameTo(ApkFile)) {
                            // 通知安装
                            mHandler.sendEmptyMessage(DOWN_OVER);
                        }
                        break;
                    }
                    fos.write(buf, 0, numread);
                } while (!interceptFlag);// 点击取消就停止下载

                fos.close();
                is.close();
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    };

    /**
     * 下载apk
     *
     * @param url
     */
    private void downloadApk() {
        downLoadThread = new Thread(mdownApkRunnable);
        downLoadThread.start();
    }

    /**
     * 安装apk
     *
     * @param url
     */
    private void installApk() {
        File apkfile = new File(apkFilePath);
        if (!apkfile.exists()) {
            return;
        }
        Intent i = new Intent(Intent.ACTION_VIEW);
        i.setDataAndType(Uri.parse("file://" + apkfile.toString()),
                "application/vnd.android.package-archive");
        mContext.startActivity(i);
    }
}

3：应用程序更新实体类

package lcl.android.core;

import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;

import lcl.android.utility.StringUtils;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import android.util.Xml;

/**
* 应用程序更新实体类
*
* @author liux (http://my.oschina.net/liux)
* @version 1.0
* @created 2012-3-21
*/
public class Update implements Serializable {

    private static final long serialVersionUID = -1356876892850891288L;
    public final static String UTF8 = "UTF-8";
    public final static String NODE_ROOT = "oschina";

    private int versionCode;
    private String versionName;
    private String downloadUrl;
    private String updateLog;

    public int getVersionCode() {
        return versionCode;
    }

    public void setVersionCode(int 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;
    }

    public static Update parse(InputStream inputStream) throws IOException,
            Exception {
        Update update = null;
        // 获得XmlPullParser解析器
        XmlPullParser xmlParser = Xml.newPullParser();
        try {
            xmlParser.setInput(inputStream, UTF8);
            // 获得解析到的事件类别，这里有开始文档，结束文档，开始标签，结束标签，文本等等事件。
            int evtType = xmlParser.getEventType();
            // 一直循环，直到文档结束
            while (evtType != XmlPullParser.END_DOCUMENT) {
                String tag = xmlParser.getName();
                switch (evtType) {
                case XmlPullParser.START_TAG:
                    // 通知信息
                    if (tag.equalsIgnoreCase("android")) {
                        update = new Update();
                    } else if (update != null) {
                        if (tag.equalsIgnoreCase("versionCode")) {
                            update.setVersionCode(StringUtils.toInt(
                                    xmlParser.nextText(), 0));
                        } else if (tag.equalsIgnoreCase("versionName")) {
                            update.setVersionName(xmlParser.nextText());
                        } else if (tag.equalsIgnoreCase("downloadUrl")) {
                            update.setDownloadUrl(xmlParser.nextText());
                        } else if (tag.equalsIgnoreCase("updateLog")) {
                            update.setUpdateLog(xmlParser.nextText());
                        }
                    }
                    break;
                case XmlPullParser.END_TAG:
                    break;
                }
                // 如果xml没有结束，则导航到下一个节点
                evtType = xmlParser.next();
            }
        } catch (XmlPullParserException e) {

        } finally {
            inputStream.close();
        }
        return update;
    }
}

4：获取网络版本信息

/**
* API客户端接口：用于访问网络数据
*
* @author liux (http://my.oschina.net/liux)
* @version 1.0
* @created 2012-3-21
*/
public class ApiClient {
    /**
     * 检查版本更新
     *
     * @param url
     * @return
     */
    public static Update checkVersion(AppContext appContext) throws Exception {
        try {
            return Update.parse(HtmlRegexpUtil
                    .GetInputStreamByUrl(“http://files.cnblogs.com/luomingui/MobileAppVersion.xml”));
        } catch (Exception e) {
            throw e;
        }
    }
}
5：发布到网络