替换友盟更新的小demo

本文主要是介绍替换友盟更新的小demo，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

友盟更新将在2016-10-15停止更新

友盟更新将在2016-10-15停止更新，之前一直使用友盟更新的小伙伴们是不是正在忙着相应对策，

友盟更新替换友盟提供了两种更新替换方式，一个是使用推送将自己的新版本的下载链接推送到客户端，然后客户通过点击通知栏进行更新，这只是最简洁的处理方式，但是略显low，接下来就是第二种方法，

在闪屏界面请求服务器查询是否有新版本

大致思路

1.在闪屏界面，请求服务器
2.服务器返回服务器上面最新的版本的相关的信息，包含版本信息，描述信息，是否是强制更新……
3.获取本地的已经安装的软件的版本号，与服务器返回的版本号进行比对
4.如果本地的版本号小于服务器，则说明需要更新
5.弹出对话框提示有新版本，询问用户是否更新
6.用户点击确定更新，开启更新服务，下载新版的APK
7.下载完成，安装APK，完成版本更新

这是开启的下载的服务的相关代码

package com.cheletong.gyz.service;import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;import android.annotation.SuppressLint;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.text.TextUtils;import com.cheletong.R;
import com.cheletong.activity.start.StartActivity;public class UpdateService extends Service {//标题  private int titleId = 0;private final static int DOWNLOAD_COMPLETE = 0;private final static int DOWNLOAD_FAIL = 1;//文件存储  private File updateDir = null;private File updateFile = null;//通知栏  private NotificationManager updateNotificationManager = null;private Notification updateNotification = null;//通知栏跳转Intent  private Intent updateIntent = null;private PendingIntent updatePendingIntent = null;private Notification.Builder builder;private String title = "你的项目名称";private String downLoadUrl;@Overridepublic IBinder onBind(Intent intent) {// TODO Auto-generated method stub  return null;}@Overridepublic void onCreate() {super.onCreate();}@Overridepublic int onStartCommand(Intent intent, int flags, int startId) {//获取传值  titleId = intent.getIntExtra("titleId", 0);downLoadUrl = intent.getStringExtra("url");// Toast.makeText(this,"下载地址：" + downLoadUrl,Toast.LENGTH_SHORT).show();// 如果获取到了一个空的url 就将服务器更新写死的URL设置给他if(TextUtils.isEmpty(downLoadUrl)){// TODO  如果获取不到下载的url 就将存放apk更新的url直接设置进来downLoadUrl = "http://42.121.113.46:8098/cheletong/apk/cheletong.apk";}//创建文件if (android.os.Environment.MEDIA_MOUNTED.equals(android.os.Environment.getExternalStorageState())) {updateDir = new File(Environment.getExternalStorageDirectory(), "app/download/");updateFile = new File(updateDir.getPath(), getResources().getString(titleId) + ".apk");}this.updateNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);builder = new Notification.Builder(this);builder.setSmallIcon(R.drawable.icon); //设置图标// builder.setTicker("显示第二个通知");// builder.setContentTitle("通知"); //设置标题// builder.setContentText("点击查看详细内容"); //消息内容// builder.setWhen(System.currentTimeMillis()); //发送时间// builder.setDefaults(Notification.DEFAULT_ALL); //设置默认的提示音，振动方式，灯光// builder.setAutoCancel(true);//打开程序后图标消失// Intent intent = new Intent(MainActivity.this, Center.class);// PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this, 0, intent, 0);// builder.setContentIntent(pendingIntent);// Notification notification1 = builder.build();// notificationManager.notify(124, notification1); // 通过通知管理器发送通知this.updateNotification = builder.getNotification();//设置下载过程中，点击通知栏，回到主界面  updateIntent = new Intent(this, StartActivity.class);updatePendingIntent = PendingIntent.getActivity(this, 0, updateIntent, 0);//设置通知栏显示内容  // updateNotification.icon = R.mipmap.ic_launcher;// updateNotification.tickerText = "开始下载";// updateNotification.setLatestEventInfo(this,"上海地铁","0%",updatePendingIntent);builder.setTicker("开始下载");builder.setContentTitle(title); //设置标题builder.setContentText("0%"); //消息内容// builder.setContentIntent(updatePendingIntent);this.updateNotification = builder.getNotification();//发出通知  updateNotificationManager.notify(0, updateNotification);//开启一个新的线程下载，如果使用Service同步下载，会导致ANR问题，Service本身也会阻塞  new Thread(new updateRunnable()).start();//这个是下载的重点，是下载的过程  return super.onStartCommand(intent, flags, startId);}private Handler updateHandler = new Handler() {@Overridepublic void handleMessage(Message msg) {switch (msg.what) {case DOWNLOAD_COMPLETE:updateNotification.flags |= updateNotification.FLAG_AUTO_CANCEL;//点击安装PendingIntent  Uri uri = Uri.fromFile(updateFile);Intent installIntent = new Intent(Intent.ACTION_VIEW);installIntent.setDataAndType(uri, "application/vnd.android.package-archive");updatePendingIntent = PendingIntent.getActivity(UpdateService.this, 0, installIntent, 0);updateNotification.defaults = Notification.DEFAULT_SOUND;//铃声提醒   // updateNotification.setLatestEventInfo(UpdateService.this, "上海地铁", "下载完成,点击安装。", updatePendingIntent);builder.setTicker("下载完成");builder.setContentTitle(title); //设置标题builder.setContentText("下载完成,点击安装。"); //消息内容builder.setContentIntent(updatePendingIntent);builder.setAutoCancel(true);//打开程序后图标消失updateNotification = builder.getNotification();updateNotificationManager.notify(0, updateNotification);//停止服务  stopService(updateIntent);break;case DOWNLOAD_FAIL://下载失败  // updateNotification.setLatestEventInfo(UpdateService.this, "上海地铁", "下载完成,点击安装。", updatePendingIntent);builder.setTicker("下载失败");builder.setContentTitle(title); //设置标题builder.setContentText("下载失败..."); //消息内容// builder.setContentIntent(updatePendingIntent);builder.setAutoCancel(true);//打开程序后图标消失updateNotification = builder.getNotification();updateNotificationManager.notify(0, updateNotification);break;default:stopService(updateIntent);}}};class updateRunnable implements Runnable {Message message = updateHandler.obtainMessage();public void run() {message.what = DOWNLOAD_COMPLETE;try {//增加权限<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE">;  if (!updateDir.exists()) {updateDir.mkdirs();}if (!updateFile.exists()) {updateFile.createNewFile();}//下载函数，以QQ为例子  //增加权限<uses-permission android:name="android.permission.INTERNET">;  long downloadSize = downloadUpdateFile("http://softfile.3g.qq.com:8080/msoft/179/1105/10753/MobileQQ1.0(Android)_Build0198.apk", updateFile);// TODO 设置下载的连接为从之前页面解析万json之后获取到的url// long downloadSize = downloadUpdateFile(downLoadUrl, updateFile);if (downloadSize > 0) {//下载成功  updateHandler.sendMessage(message);// 下载完成之后自动安装应用Intent intent = new Intent();intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);intent.setAction(android.content.Intent.ACTION_VIEW);intent.setDataAndType(Uri.fromFile(updateFile),"application/vnd.android.package-archive");startActivity(intent);}} catch (Exception ex) {ex.printStackTrace();message.what = DOWNLOAD_FAIL;//下载失败  updateHandler.sendMessage(message);}}}@SuppressLint("NewApi")public long downloadUpdateFile(String downloadUrl, File saveFile) throws Exception {//这样的下载代码很多，我就不做过多的说明  int downloadCount = 0;int currentSize = 0;long totalSize = 0;int updateTotalSize = 0;HttpURLConnection httpConnection = null;InputStream is = null;FileOutputStream fos = null;try {URL url = new URL(downloadUrl);httpConnection = (HttpURLConnection) url.openConnection();httpConnection.setRequestProperty("User-Agent", "PacificHttpClient");if (currentSize > 0) {httpConnection.setRequestProperty("RANGE", "bytes=" + currentSize + "-");}httpConnection.setConnectTimeout(10000);httpConnection.setReadTimeout(20000);updateTotalSize = httpConnection.getContentLength();if (httpConnection.getResponseCode() == 404) {throw new Exception("fail!");}is = httpConnection.getInputStream();fos = new FileOutputStream(saveFile, false);byte buffer[] = new byte[4096];int readsize = 0;while ((readsize = is.read(buffer)) > 0) {fos.write(buffer, 0, readsize);totalSize += readsize;//为了防止频繁的通知导致应用吃紧，百分比增加10才通知一次  if ((downloadCount == 0) || (int) (totalSize * 100 / updateTotalSize) - 10 > downloadCount) {downloadCount += 10;// updateNotification.setLatestEventInfo(UpdateService.this, "正在下载", (int) totalSize * 100 / updateTotalSize + "%", updatePendingIntent);builder.setTicker("正在下载");builder.setContentTitle(title); //设置标题builder.setProgress(100, (int) totalSize * 100 / updateTotalSize + 9, false);builder.setContentText("当前下载进度："+(int) totalSize * 100 / updateTotalSize + "%"); //消息内容// builder.setContentIntent(updatePendingIntent);updateNotification = builder.getNotification();updateNotificationManager.notify(0, updateNotification);}}} finally {if (httpConnection != null) {httpConnection.disconnect();}if (is != null) {is.close();}if (fos != null) {fos.close();}}return totalSize;}}