import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import com.example.updateappdemo.R;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.widget.RemoteViews;
import android.widget.Toast;
/***
* 升级服务
*
* @author hexiaoming
*
*/
public class UpdateService extends Service {
public static final String Install_Apk = "Install_Apk";
/********download progress step*********/
private static final int down_step_custom = 3;
private static final int TIMEOUT = 10 * 1000;// 超时
private static String down_url;
private static final int DOWN_OK = 1;
private static final int DOWN_ERROR = 0;
private String app_name;
private NotificationManager notificationManager;
private Notification notification;
private Intent updateIntent;
private PendingIntent pendingIntent;
private RemoteViews contentView;
@Override
public IBinder onBind(Intent arg0) {
return null;
}
/**
* 方法描述：onStartCommand方法
* @param Intent intent, int flags, int startId
* @return int
* @see UpdateService
*/
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
app_name = intent.getStringExtra("Key_App_Name");
down_url = intent.getStringExtra("Key_Down_Url");
// create file,应该在这个地方加一个返回值的判断SD卡是否准备好，文件是否创建成功，等等！
FileUtil.createFile(app_name);
if(FileUtil.isCreateFileSucess == true){
createNotification();
createThread();
}else{
Toast.makeText(this, R.string.insert_card, Toast.LENGTH_SHORT).show();
/***************stop service************/
stopSelf();
}
return super.onStartCommand(intent, flags, startId);
}
/********* update UI******/
private final Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case DOWN_OK:
/*********下载完成，点击安装***********/
Uri uri = Uri.fromFile(FileUtil.updateFile);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri,"application/vnd.android.package-archive");
pendingIntent = PendingIntent.getActivity(UpdateService.this, 0, intent, 0);
notification.flags = Notification.FLAG_AUTO_CANCEL;
notification.setLatestEventInfo(UpdateService.this,app_name, getString(R.string.down_sucess), pendingIntent);
//notification.setLatestEventInfo(UpdateService.this,app_name, app_name getString(R.string.down_sucess), null);
notificationManager.notify(R.layout.notification_item, notification);
/*****安装APK******/
//installApk();
//stopService(updateIntent);
/***stop service*****/
stopSelf();
break;
case DOWN_ERROR:
notification.flags = Notification.FLAG_AUTO_CANCEL;
//notification.setLatestEventInfo(UpdateService.this,app_name, getString(R.string.down_fail), pendingIntent);
notification.setLatestEventInfo(UpdateService.this,app_name, getString(R.string.down_fail), null);
/***stop service*****/
//onDestroy();
stopSelf();
break;
default:
//stopService(updateIntent);
/******Stop service******/
//stopService(intentname)
//stopSelf();
break;
}
}
};
private void installApk() {
// TODO Auto-generated method stub
/*********下载完成，点击安装***********/
Uri uri = Uri.fromFile(FileUtil.updateFile);
Intent intent = new Intent(Intent.ACTION_VIEW);
/**********加这个属性是因为使用Context的startActivity方法的话，就需要开启一个新的task**********/
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri,"application/vnd.android.package-archive");
UpdateService.this.startActivity(intent);
}
/**
* 方法描述：createThread方法, 开线程下载
* @param
* @return
* @see UpdateService
*/
public void createThread() {
new DownLoadThread().start();
}
private class DownLoadThread extends Thread{
@Override
public void run() {
// TODO Auto-generated method stub
Message message = new Message();
try {
long downloadSize = downloadUpdateFile(down_url,FileUtil.updateFile.toString());
if (downloadSize > 0) {
// down success
message.what = DOWN_OK;
handler.sendMessage(message);
}
} catch (Exception e) {
e.printStackTrace();
message.what = DOWN_ERROR;
handler.sendMessage(message);
}
}
}
/**
* 方法描述：createNotification方法
* @param
* @return
* @see UpdateService
*/
public void createNotification() {
//notification = new Notification(R.drawable.dot_enable,app_name getString(R.string.is_downing) ,System.currentTimeMillis());
notification = new Notification(
//R.drawable.video_player,//应用的图标
R.drawable.ic_launcher,//应用的图标
app_name getString(R.string.is_downing),
System.currentTimeMillis());
notification.flags = Notification.FLAG_ONGOING_EVENT;
//notification.flags = Notification.FLAG_AUTO_CANCEL;
/*** 自定义 Notification 的显示****/
contentView = new RemoteViews(getPackageName(),R.layout.notification_item);
contentView.setTextViewText(R.id.notificationTitle, app_name getString(R.string.is_downing));
contentView.setTextViewText(R.id.notificationPercent, "0%");
contentView.setProgressBar(R.id.notificationProgress, 100, 0, false);
notification.contentView = contentView;
// updateIntent = new Intent(this, AboutActivity.class);
// updateIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
// //updateIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
// pendingIntent = PendingIntent.getActivity(this, 0, updateIntent, 0);
// notification.contentIntent = pendingIntent;
notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(R.layout.notification_item, notification);
}
/***
* down file
*
* @return
* @throws MalformedURLException
*/
public long downloadUpdateFile(String down_url, String file)throws Exception {
int down_step = down_step_custom;// 提示step
int totalSize;// 文件总大小
int downloadCount = 0;// 已经下载好的大小
int updateCount = 0;// 已经上传的文件大小
InputStream inputStream;
OutputStream outputStream;
URL url = new URL(down_url);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setConnectTimeout(TIMEOUT);
httpURLConnection.setReadTimeout(TIMEOUT);
// 获取下载文件的size
totalSize = httpURLConnection.getContentLength();
if (httpURLConnection.getResponseCode() == 404) {
throw new Exception("fail!");
//这个地方应该加一个下载失败的处理，但是，因为我们在外面加了一个try---catch，已经处理了Exception,
//所以不用处理
}
inputStream = httpURLConnection.getInputStream();
outputStream = new FileOutputStream(file, false);// 文件存在则覆盖掉
byte buffer[] = new byte[1024];
int readsize = 0;
while ((readsize = inputStream.read(buffer)) != -1) {
// /*********如果下载过程中出现错误，就弹出错误提示，并且把notificationManager取消*********/
// if (httpURLConnection.getResponseCode() == 404) {
// notificationManager.cancel(R.layout.notification_item);
// throw new Exception("fail!");
// //这个地方应该加一个下载失败的处理，但是，因为我们在外面加了一个try---catch，已经处理了Exception,
// //所以不用处理
// }
outputStream.write(buffer, 0, readsize);
downloadCount = readsize;// 时时获取下载到的大小
/*** 每次增张3%**/
if (updateCount == 0 || (downloadCount * 100 / totalSize - down_step) >= updateCount) {
updateCount = down_step;
// 改变通知栏
contentView.setTextViewText(R.id.notificationPercent,updateCount "%");
contentView.setProgressBar(R.id.notificationProgress, 100,updateCount, false);
notification.contentView = contentView;
notificationManager.notify(R.layout.notification_item, notification);
}
}
if (httpURLConnection != null) {
httpURLConnection.disconnect();
}
inputStream.close();
outputStream.close();
return downloadCount;
}
}
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