android客户端的自更新

最近给朋友使用这个app，他说你应该加上自更新，这样不用每次有新版本就单独发包了，然后因为我的也没有上市场，所以打算做个自更新。
这里我我的后台是用springmvc自己搭的，我的app的视频部分会从我的服务器取数据，然后就在我的后台加了一个更新的接口，返回true就是更新，false不更新（当然应该加上版本的判断，刚想起来的，一会加上现在就不加了）。
现在我的服务器数据：

{"hasNewVersion":true,"status":"ok"}

现改：

{"state":"ok","version":2}

我这里直接用int去判断版本号，客户端代码也得做相应的改动。
来看一下更新的代码：

package com.fanyafeng.recreation.fragment;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.Context;import android.content.Intent;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.net.Uri;import android.os.AsyncTask;import android.os.Bundle;import android.os.Environment;import android.os.Handler;import android.os.Message;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.support.v7.widget.Toolbar;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.RelativeLayout;import android.widget.RemoteViews;import android.widget.Toast;import com.facebook.drawee.view.SimpleDraweeView;import com.fanyafeng.recreation.R;import com.fanyafeng.recreation.activity.CreateCodeActivity;import com.fanyafeng.recreation.activity.FileExplorerActivity;import com.fanyafeng.recreation.activity.LoginActivity;import com.fanyafeng.recreation.activity.NoteActivity;import com.fanyafeng.recreation.activity.PlayVideoActivity;import com.fanyafeng.recreation.activity.ScanCodeActivity;import com.fanyafeng.recreation.bean.MainItemBean;import com.fanyafeng.recreation.network.NetUtil;import com.fanyafeng.recreation.network.Urls;import com.fanyafeng.recreation.util.FrescoDealPicUtil;import com.fanyafeng.recreation.util.FrescoUtil;import com.fanyafeng.recreation.util.StringUtil;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;public class FourFragment extends BaseFragment {    private Toolbar toolbar;    private SimpleDraweeView sdvPersonal;    private RelativeLayout layoutVideo;    private RelativeLayout layoutBarCode;    private RelativeLayout layoutCreateBarCode;    private RelativeLayout layoutOpenFile;    private RelativeLayout layoutNote;    private RelativeLayout layoutUpdate;    private int fileLength;    private int DownedFileLength = 0;    private InputStream inputStream;    private URLConnection connection;    private OutputStream outputStream;    private NotificationManager manager;    private RemoteViews contentView;    private String packageName;    private PendingIntent contentIntent;    private int icon_download = android.R.drawable.stat_sys_download;    Notification mNotification = new Notification(icon_download, "开始下载更新", System.currentTimeMillis());    public FourFragment() {        // Required empty public constructor    }    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);    }    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {        return inflater.inflate(R.layout.fragment_four, container, false);    }    @Override    public void onActivityCreated(@Nullable Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);        initView();        initData();    }    private void initView() {        toolbar = (Toolbar) getActivity().findViewById(R.id.toolbar_four);        toolbar.setTitle("个人");        toolbar.setLogo(R.drawable.simle_logo_04);        sdvPersonal = (SimpleDraweeView) getActivity().findViewById(R.id.sdvPersonal);        FrescoUtil.loadPicOnNet(sdvPersonal, "http://news.mydrivers.com/img/20141111/aced68582b904db8a876ea21ffe15ca6.jpg");        layoutVideo = (RelativeLayout) getActivity().findViewById(R.id.layoutVideo);        layoutVideo.setOnClickListener(this);        layoutBarCode = (RelativeLayout) getActivity().findViewById(R.id.layoutBarCode);        layoutBarCode.setOnClickListener(this);        layoutCreateBarCode = (RelativeLayout) getActivity().findViewById(R.id.layoutCreateBarCode);        layoutCreateBarCode.setOnClickListener(this);        layoutOpenFile = (RelativeLayout) getActivity().findViewById(R.id.layoutOpenFile);        layoutOpenFile.setOnClickListener(this);        layoutNote = (RelativeLayout) getActivity().findViewById(R.id.layoutNote);        layoutNote.setOnClickListener(this);        layoutUpdate = (RelativeLayout) getActivity().findViewById(R.id.layoutUpdate);        layoutUpdate.setOnClickListener(this);    }    private void initData() {        manager = (NotificationManager) getContext().getSystemService(getActivity().NOTIFICATION_SERVICE);        packageName = getActivity().getPackageName();    }    @Override    public void onClick(View view) {        super.onClick(view);        switch (view.getId()) {            case R.id.layoutVideo:                startActivity(new Intent(getActivity(), FileExplorerActivity.class));                break;            case R.id.layoutBarCode://扫码                startActivity(new Intent(getActivity(), ScanCodeActivity.class));                break;            case R.id.layoutCreateBarCode://生成二维码                startActivity(new Intent(getActivity(), CreateCodeActivity.class));                break;            case R.id.layoutOpenFile:                startActivity(new Intent(getActivity(), FileExplorerActivity.class));                break;            case R.id.layoutNote:                startActivity(new Intent(getActivity(), NoteActivity.class));                break;            case R.id.layoutUpdate:                //添加在线更新                getNewVersion();//                updateAPK();                break;        }    }    public static String getVersion(Context context)//获取版本号    {        try {            PackageInfo pi = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);            return pi.versionName;        } catch (PackageManager.NameNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();            return context.getString(R.string.version_unknown);        }    }    private void getNewVersion() {        new AsyncTask<String, String, String>() {            @Override            protected void onPreExecute() {                super.onPreExecute();            }            @Override            protected void onPostExecute(String s) {                super.onPostExecute(s);                try {                    if (!StringUtil.isNullOrEmpty(s)) {                        JSONObject jsonObject = new JSONObject(s);                        if (jsonObject != null) {                            String state = jsonObject.optString("state");//判断请求状态                            if (state.equals(NetUtil.STATE_OK)) {                                if (jsonObject.optInt("version")>Integer.parseInt(getVersion(getActivity()).replace(".", ""))) {                                    Toast.makeText(getActivity(), "正在为您下载更新", Toast.LENGTH_SHORT).show();                                    updateAPK();                                } else {                                    Toast.makeText(getActivity(), "已是最新版本", Toast.LENGTH_SHORT).show();                                }                                return;                            }                        }                    }                } catch (JSONException e) {                    e.printStackTrace();                }                Toast.makeText(getActivity(), "数据加载失败", Toast.LENGTH_SHORT).show();            }            @Override            protected String doInBackground(String... params) {                return NetUtil.httpGetUtil(getActivity(), "http://localhost:8080/recreation-1.0/version/hasNewVersion");            }        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);    }    private void updateAPK() {        DownLoadThread downLoadThread = new DownLoadThread();        downLoadThread.start();    }    private class DownLoadThread extends Thread {        @Override        public void run() {            DownFile("http://60.205.223.7:8080/Recreation/recreation_001.apk");        }    }    private void DownFile(String durl) {        try {            URL url = new URL(durl);            connection = url.openConnection();            inputStream = connection.getInputStream();        } catch (Exception e) {            e.printStackTrace();        }        if (inputStream == null) {            Message message3 = Message.obtain();            message3.what = 3;            progressHandler.sendMessage(message3);            return;        }        String downloadDir = Environment.getExternalStorageDirectory().getPath() + "/download";        File file1 = new File(downloadDir);        if (!file1.exists()) {            file1.mkdir();        }        String filePath = downloadDir + "/recreation.apk";        File file = new File(filePath);        if (!file.exists()) {            try {                file.createNewFile();            } catch (IOException e) {                e.printStackTrace();            }        }        Message message = Message.obtain();        try {            outputStream = new FileOutputStream(file);            fileLength = connection.getContentLength();            int bufferLen = 1024;            byte[] buffer = new byte[bufferLen];            message.what = 0;            progressHandler.sendMessage(message);            int count = 0;            while ((count = inputStream.read(buffer)) != -1) {                DownedFileLength += count;//                temp = (float) this.notificationProgress.getProgress() / (float) this.notificationProgress.getMax();                outputStream.write(buffer, 0, count);                Message message1 = Message.obtain();                message1.what = 1;                progressHandler.sendMessage(message1);            }            Message message2 = Message.obtain();            message2.what = 2;            progressHandler.sendMessage(message2);        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }    private Handler progressHandler = new Handler() {        public void handleMessage(Message msg) {            if (!Thread.currentThread().isInterrupted()) {                switch (msg.what) {                    case 0:                        mNotification.flags |= Notification.FLAG_AUTO_CANCEL;                        contentView = new RemoteViews(packageName, R.layout.notification_view_download);                        contentView.setTextViewText(R.id.notificationTitle, "开心一刻:开始下载...");                        contentView.setTextViewText(R.id.notificationPercent, "下载开始");                        contentView.setProgressBar(R.id.notificationProgress, fileLength, DownedFileLength, false);                        mNotification.contentView = contentView;                        mNotification.contentIntent = contentIntent;                        manager.notify(1, mNotification);                        break;                    case 1:                        mNotification.flags |= Notification.FLAG_AUTO_CANCEL;                        contentView = new RemoteViews(packageName, R.layout.notification_view_download);                        contentView.setTextViewText(R.id.notificationTitle, "开心一刻:正在下载中...");                        // notification显示                        contentView.setTextViewText(R.id.notificationPercent, "下载中");                        contentView.setProgressBar(R.id.notificationProgress, fileLength, DownedFileLength, false);                        mNotification.contentView = contentView;                        mNotification.contentIntent = contentIntent;                        manager.notify(1, mNotification);                        break;                    case 2:                        mNotification.flags |= Notification.FLAG_AUTO_CANCEL;                        contentView = new RemoteViews(packageName, R.layout.notification_view_download);                        contentView.setTextViewText(R.id.notificationTitle, "Download:开心一刻安装包下载完成");                        // notification显示                        contentView.setTextViewText(R.id.notificationPercent, "下载完成");                        contentView.setImageViewResource(R.id.notificationImage, R.mipmap.ic_launcher);                        mNotification.icon = R.mipmap.ic_launcher;                        contentView.setProgressBar(R.id.notificationProgress, fileLength, DownedFileLength, false);                        mNotification.contentView = contentView;                        mNotification.contentIntent = contentIntent;                        manager.notify(1, mNotification);                        installApk(Environment.getExternalStorageDirectory().getPath() + "/download" + "/recreation.apk");                        break;                    case 3:                        Toast.makeText(getActivity(), "暂无版本更新", Toast.LENGTH_SHORT).show();                        break;                    default:                        break;                }            }        }    };    // 安装apk文件    private void installApk(String filename) {        File file = new File(filename);        Intent intent = new Intent();        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        intent.setAction(Intent.ACTION_VIEW); // 浏览网页的Action(动作)        String type = "application/vnd.android.package-archive";        intent.setDataAndType(Uri.fromFile(file), type); // 设置数据类型        getContext().startActivity(intent);    }}

这样的话如果版本更新的话服务器只需要做相应改动就可以了：

package com.fanyafeng.controller;import com.fanyafeng.interceptor.AccessRequired;import org.springframework.http.MediaType;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import java.util.HashMap;import java.util.Map;/** * Author： fanyafeng * Data： 17/1/7 10:13 * Email: [e-mail] */@Controller@RequestMapping(value = "/version")public class VersionController {    @AccessRequired(required = false)    @RequestMapping(value = "/hasNewVersion", produces = MediaType.APPLICATION_JSON_UTF8_VALUE)    @ResponseBody    public Map<String, Object> hasNewVersion() {        Map<String, Object> map = new HashMap<>();        map.put("state", "ok");        map.put("version", 2);//        map.put("hasNewVersion", false);        return map;    }    @RequestMapping(value = "/test1", produces = MediaType.APPLICATION_JSON_UTF8_VALUE)    @ResponseBody    public Map<String, Object> test1() {        Map<String, Object> map = new HashMap<>();        map.put("state", "ok");        map.put("hasNewVersion", false);        return map;    }}