Android 版本更新

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商城项目功能上基本结束，现在正在考虑一下上线的问题，因为这是第一版所以后面一定会有版本更新的问题，所以昨天搞了一下版本更新，今天抽出时间做一下总结，这里我参考了 https://github.com/chiclaim/android-app-update 朋友的博客简单的修改了一下逻辑用到了自己的项目当中。

废话不多说接下来说一下版本更新的整个流程包括跟后台的配合。所有的注意事项都写在注释里面

MainActivity 判断版本号是否调用更新方法，这里我用了Volley 网络请求框架，主要是从后台服务器获取当前最新的版本号VersionName 这里是1.1.0 什么的其实我本意想判断VersionCode 这个是整型int 这个判断起来比较直观，但是后台不想改动他的代码所以这里直接判断后台VersionName 跟当前VersionName字符串是否相等，后台的VersionName 是最新的如果相等当前用户的手机就是最新版本否则就更新。。。。。

      mHttpHelper.sendJsonRequest("TAG", reqData1, Parameter, new Response.Listener<JSONObject>() {                    @Override                    public void onResponse(JSONObject response) {                        try {                            Log.i("获取版本更新数据", String.valueOf(response.getJSONObject("rspCode").getString("code")));                            String resCode = response.getJSONObject("rspCode").getString("code");                            if (resCode.equals("0000")) {//                                "{"appName":"android","id":1,"app":"0","emergency":"0","note":"第一版","version":"1.1.0"}"                                try {                                    String jsonObject1 = response.getString("message");                                    JSONObject jsonObject = new JSONObject(jsonObject1);//                                    String appName = jsonObject.getString("appName");//                                    String id = jsonObject.getString("id");//                                    String note = jsonObject.getString("note");                                    String NewVersionName = jsonObject.getString("version");//                                    Log.e("版本更新数据", appName);//                                    Log.e("版本更新数据", id);//                                    Log.e("版本更新数据", note);//                                    Log.e("版本更新数据", NewVersionName);                                    //获取当前程序的版本号                                    String PerVersionName = null;                                    try {                                        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);                                        PerVersionName = packInfo.versionName;                                    } catch (PackageManager.NameNotFoundException e) {                                        e.printStackTrace();                                    }                                    if(! PerVersionName.equals(NewVersionName)){                                        doNewVersionUpdate(PerVersionName,NewVersionName);                                    }                                } catch (JSONException e) {                                    e.printStackTrace();                                }                            } else {//                                Toast.makeText(getContext(), "请检查网络连接", Toast.LENGTH_LONG).show();                            }                        } catch (JSONException e) {                            e.printStackTrace();                        }                    }                },                new Response.ErrorListener() {                    @Override                    public void onErrorResponse(VolleyError error) {                        error.printStackTrace();                    }                });    }

MainActivity 版本更新方法这里我用了一个Dialog 弹出框提示用户进行更新操作

 /**     * 提示更新新版本     *     https://github.com/chiclaim/android-app-update     */    private void doNewVersionUpdate(String PerVersionName,String NewVersionName) {        String str = "当前版本：" + PerVersionName + " ,发现新版本：" + NewVersionName + " ,是否更新？";        Dialog dialog = new AlertDialog.Builder(this).setTitle("更新提示").setMessage(str).setIcon(R.mipmap.login_logo)                // 设置内容                .setPositiveButton("更新",// 设置确定按钮                        new DialogInterface.OnClickListener() {                            @Override                            public void onClick(DialogInterface dialog, int which) {                                ApkUpdateUtils.download(getApplication(), "http://age谁的风格大方u.apk", getResources().getString(R.string.app_name));                            }                        })                .setNegativeButton("暂不更新",                        new DialogInterface.OnClickListener() {                            public void onClick(DialogInterface dialog,                                                int whichButton) {                                // 点击"取消"按钮之后退出程序//                                finish();                                dialog.dismiss();                            }                        }).create();// 创建        // 显示对话框        dialog.show();    }}

DownManager 下载App的管理器

package com.ingkoo.AppVersionUpdate;import android.app.DownloadManager;import android.content.Context;import android.database.Cursor;import android.net.Uri;import android.os.Environment;/** * Created by chiclaim on 2016/05/18 */public class FileDownloadManager {    private DownloadManager dm;    private Context context;    private static FileDownloadManager instance;    private FileDownloadManager(Context context) {        dm = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);        this.context = context.getApplicationContext();    }    public static FileDownloadManager getInstance(Context context) {        if (instance == null) {            instance = new FileDownloadManager(context);        }        return instance;    }    /**     * @param uri     * @param title     * @param description     * @return download id     */    public long startDownload(String uri, String title, String description) {        DownloadManager.Request req = new DownloadManager.Request(Uri.parse(uri));        req.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI);        //req.setAllowedOverRoaming(false);        req.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);        //设置文件的保存的位置[三种方式]        //第一种        //file:///storage/emulated/0/Android/data/your-package/files/Download/update.apk        req.setDestinationInExternalFilesDir(context, Environment.DIRECTORY_DOWNLOADS, "update.apk");        //第二种        //file:///storage/emulated/0/Download/update.apk        //req.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "update.apk");        //第三种 自定义文件路径        //req.setDestinationUri()        // 设置一些基本显示信息        req.setTitle(title);        req.setDescription(description);        req.setMimeType("application/vnd.android.package-archive");        return dm.enqueue(req);        //long downloadId = dm.enqueue(req);        //Log.d("DownloadManager", downloadId + "");        //dm.openDownloadedFile()    }    /**     * 获取文件保存的路径     *     * @param downloadId an ID for the download, unique across the system.     *                   This ID is used to make future calls related to this download.     * @return file path     * @see FileDownloadManager#getDownloadUri(long)     */    public String getDownloadPath(long downloadId) {        DownloadManager.Query query = new DownloadManager.Query().setFilterById(downloadId);        Cursor c = dm.query(query);        if (c != null) {            try {                if (c.moveToFirst()) {                    return c.getString(c.getColumnIndexOrThrow(DownloadManager.COLUMN_LOCAL_URI));                }            } finally {                c.close();            }        }        return null;    }    /**     * 获取保存文件的地址     *     * @param downloadId an ID for the download, unique across the system.     *                   This ID is used to make future calls related to this download.     * @see FileDownloadManager#getDownloadPath(long)     */    public Uri getDownloadUri(long downloadId) {        return dm.getUriForDownloadedFile(downloadId);    }    public DownloadManager getDm() {        return dm;    }    /**     * 获取下载状态     *     * @param downloadId an ID for the download, unique across the system.     *                   This ID is used to make future calls related to this download.     * @return int     * @see DownloadManager#STATUS_PENDING     * @see DownloadManager#STATUS_PAUSED     * @see DownloadManager#STATUS_RUNNING     * @see DownloadManager#STATUS_SUCCESSFUL     * @see DownloadManager#STATUS_FAILED     */    public int getDownloadStatus(long downloadId) {        DownloadManager.Query query = new DownloadManager.Query().setFilterById(downloadId);        Cursor c = dm.query(query);        if (c != null) {            try {                if (c.moveToFirst()) {                    return c.getInt(c.getColumnIndexOrThrow(DownloadManager.COLUMN_STATUS));                }            } finally {                c.close();            }        }        return -1;    }}

package com.ingkoo.AppVersionUpdate;import android.app.DownloadManager;import android.content.Context;import android.content.Intent;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.net.Uri;import android.util.Log;/** * Created by chiclaim on 2016/05/18 */public class ApkUpdateUtils {    public static final String TAG = ApkUpdateUtils.class.getSimpleName();    private static final String KEY_DOWNLOAD_ID = "downloadId";    public static void download(Context context, String url, String title) {        long downloadId = SpUtils.getInstance(context).getLong(KEY_DOWNLOAD_ID, -1L);        if (downloadId != -1L) {            FileDownloadManager fdm = FileDownloadManager.getInstance(context);            int status = fdm.getDownloadStatus(downloadId);            Log.e("status", String.valueOf(status));            if (status == DownloadManager.STATUS_SUCCESSFUL) {                //启动更新界面                Uri uri = fdm.getDownloadUri(downloadId);                if (uri != null) {                    if (compare(getApkInfo(context, uri.getPath()), context)) {                        startInstall(context, uri);                         return;                    } else {                        fdm.getDm().remove(downloadId);                    }                }                start(context, url, title);            } else if (status == DownloadManager.STATUS_FAILED) {                start(context, url, title);            } else {                Log.d(TAG, "apk is already downloading");            }        } else {            start(context, url, title);        }    }    private static void start(Context context, String url, String title) {        long id = FileDownloadManager.getInstance(context).startDownload(url,                title, "下载完成后点击打开");        SpUtils.getInstance(context).putLong(KEY_DOWNLOAD_ID, id);        Log.d("status", "apk start download " +SpUtils.getInstance(context).getLong(KEY_DOWNLOAD_ID, (long) -1));    }    public static void startInstall(Context context, Uri uri) {        Intent install = new Intent(Intent.ACTION_VIEW);        install.setDataAndType(uri, "application/vnd.android.package-archive");        install.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        context.startActivity(install);    }    /**     * 获取apk程序信息[packageName,versionName...]     *     * @param context Context     * @param path    apk path     */    private static PackageInfo getApkInfo(Context context, String path) {        PackageManager pm = context.getPackageManager();        PackageInfo info = pm.getPackageArchiveInfo(path, PackageManager.GET_ACTIVITIES);        if (info != null) {            String packageName = info.packageName;            String version = info.versionName;            Log.d(TAG, "packageName:" + packageName + ";version:" + version);//            String appName = pm.getApplicationLabel(appInfo).toString();//            Drawable icon = pm.getApplicationIcon(appInfo);//得到图标信息            return info;        }        return null;    }    /**     * 下载的apk和当前程序版本比较     *     * @param apkInfo apk file's packageInfo     * @param context Context     * @return 如果当前应用版本小于apk的版本则返回true     */    private static boolean compare(PackageInfo apkInfo, Context context) {        if (apkInfo == null) {            return false;        }        String localPackage = context.getPackageName();        if (apkInfo.packageName.equals(localPackage)) {            try {                PackageInfo packageInfo = context.getPackageManager().getPackageInfo(localPackage, 0);                if (apkInfo.versionCode > packageInfo.versionCode) {                    return true;                }            } catch (PackageManager.NameNotFoundException e) {                e.printStackTrace();            }        }        return false;    }}

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