notification 更新 采用 builder构建

/**
* 更新service
* Created by  on 16/7/4.
*/
public class UpdateService extends Service {
private static final int TIMEOUT = 5 * 1000; // 超时
private static final int DOWN_OK = 1;
private static final int DOWN_ERROR = 0;
private String mAppName, mUrls;
private RemoteViews mContentView;
/**
* 通知更新
*/
private Intent mUpdateIntent;
private PendingIntent mPendingIntent;
private NotificationManager mNotificationManager; // 通知管理器
private Notification mNotification; // 通知
private Notification.Builder builder;
private int mNotificationId = 1;
private static Context mContext;

@Override
public void onCreate() {
mContext = this;
super.onCreate();
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
mAppName = intent.getStringExtra("appName");
mUrls = intent.getStringExtra("url");
createFile(mAppName);
createNotification();
startUpdate();
return super.onStartCommand(intent, flags, startId);
}

@Override
public void onDestroy() {
super.onDestroy();
}

@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}

private boolean createFile(String director) {
File file = getFile(director);
if (file.exists()) {
return true;
} else {
if (!file.mkdirs()) {
return false;
}
return true;
}
}

private File getFile(String director) {
return new File(Environment.getExternalStorageDirectory(), director);
}

// 获取文件的保存路径
public File getFile() throws Exception {
String SavePath = getSDCardPath() + "/yfh";
File path = new File(SavePath);
File file = new File(SavePath + "/yifuhua.apk");
if (!path.exists()) {
path.mkdirs();
}
if (!file.exists()) {
file.createNewFile();
}
return file;
}

// 获取SDCard的目录路径功能
private String getSDCardPath() {
File sdcardDir = null;
// 判断SDCard是否存在
boolean sdcardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
if (sdcardExist) {
sdcardDir = Environment.getExternalStorageDirectory();
}
return sdcardDir.toString();
}

private void createNotification() {
//自定义Notification视图
//        mContentView = new RemoteViews(getPackageName(), R.layout.notification_item);
//        mContentView.setTextViewText(R.id.notificationTitle, mAppName + "—正在下载");
//        mContentView.setTextViewText(R.id.notificationPercent, "0%");
//        mContentView.setProgressBar(R.id.notificationProgress, 100, 0, false);

mUpdateIntent = new Intent(this, MainActivity.class);
mUpdateIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
mPendingIntent = PendingIntent.getActivity(this, 0, mUpdateIntent, 0);

builder = new Notification.Builder(mContext)
.setContentTitle("开始下载 " + mAppName)
.setContentIntent(mPendingIntent)
.setProgress(100, 1, false)
.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.logo2))
.setSmallIcon(R.mipmap.logo2);

mNotification = builder.getNotification();
//        mNotification = new Notification(R.mipmap.logo2, "开始下载 " + mAppName, System.currentTimeMillis());
//        mNotification.flags |= Notification.FLAG_NO_CLEAR;
//        mNotification.defaults |= Notification.DEFAULT_SOUND | Notification.DEFAULT_VIBRATE; // 设置通知铃声和振动提醒
//        mNotification.contentView = mContentView;
//        mNotification.contentIntent = mPendingIntent;

// 发送通知
mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(mNotificationId, mNotification);
// 清除通知铃声
mNotification.defaults = 0;
}

/***
* 开启线程下载更新
*/
public void startUpdate() {
final Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
// 添加通知声音
mNotification.defaults |= Notification.DEFAULT_SOUND;
switch (msg.what) {
case DOWN_OK:
Log.d("UpdateService", "自动更新 >>>>> " + DOWN_OK);
installApk();
break;
case DOWN_ERROR:
//                        mNotification.tickerText = mAppName + " 下载失败";
builder.setContentTitle(mAppName + " 下载失败");
builder.setContentIntent(mPendingIntent);
//                        mNotification.contentIntent = mPendingIntent;
//                        mNotification.setLatestEventInfo(UpdateService.this, mAppName, " 下载失败", mPendingIntent);
mNotification.flags = Notification.FLAG_AUTO_CANCEL;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
mNotificationManager.notify(mNotificationId, builder.build());
}
}
stopService(mUpdateIntent);
stopSelf();
}
};
// 启动线程下载更新
new Thread(new Runnable() {
@Override
public void run() {
try {
downloadUpdateFile(mUrls, getFile().toString(), handler);
} catch (Exception e) {
e.printStackTrace();
handler.sendMessage(handler.obtainMessage(DOWN_ERROR));
}
}
}).start();
}

/***
* 下载文件
*/
public void downloadUpdateFile(String down_url, String file, Handler handler) throws Exception {
int totalSize; // 文件总大小
InputStream inputStream;
FileOutputStream 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();
Log.d("UpdateService", "totalSize >>> " + totalSize);
if (httpURLConnection.getResponseCode() == 404) {
throw new Exception("fail!");
}
inputStream = httpURLConnection.getInputStream();
outputStream = new FileOutputStream(file, false);

// 异步任务开始下载
new UpdateAsyncTask(inputStream, outputStream, handler).execute(totalSize);
}

private class UpdateAsyncTask extends AsyncTask<Integer, Integer, Boolean> {

private InputStream in;

private FileOutputStream fos;

private Handler handler;

public UpdateAsyncTask(InputStream inputStream, FileOutputStream outputStream, Handler handler) {
super();
in = inputStream;
fos = outputStream;
this.handler = handler;
}

@Override
protected Boolean doInBackground(Integer... params) {
int totalSize = params[0]; // 下载总大小
int downloadCount = 0; // 已下载大小
int updateProgress = 0; // 更新进度
int updateStep = 5; // 更新进度步进

byte buffer[] = new byte[1024];
int readsize = 0;
try {
while ((readsize = in.read(buffer)) != -1) {
fos.write(buffer, 0, readsize);
// 计算已下载到的大小
downloadCount += readsize;
// 先计算已下载的百分比，然后跟上次比较是否有增加，有则更新通知进度
int now = downloadCount * 100 / totalSize;
if (updateProgress < now) {
updateProgress = now;
Log.d("UpdateService", "update: " + updateProgress + "%");
publishProgress(updateProgress);
}
}
} catch (Exception e) {
Log.e("UpdateService", "download err===>\n " + e.getMessage());
return false;
} finally {
try {
fos.close();
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return true;
}

@Override
protected void onProgressUpdate(Integer... values) {
int progress = values[0];
//改变通知栏
//            mContentView.setTextViewText(R.id.notificationPercent, progress + "%");
//            mContentView.setProgressBar(R.id.notificationProgress, 100, progress, false);
builder.setContentText(progress + "%");
builder.setProgress(100, progress, false);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
mNotificationManager.notify(mNotificationId, builder.build());
}
}

@Override
protected void onPostExecute(Boolean result) {
if (result) {
autoInstallApk();
handler.sendMessage(handler.obtainMessage(DOWN_OK)); // 通知handler已经下载完成
} else {
handler.sendMessage(handler.obtainMessage(DOWN_ERROR)); // 通知handler下载出错
}
super.onPostExecute(result);
}

}

/**
* 点击安装
*/
public void installApk() {
// 下载完成，点击安装
Uri uri = null;
try {
uri = Uri.fromFile(getFile());
} catch (Exception e) {
Log.e("UpdateService", "手动点击安装更新 >>> 安装失败:" + e.getMessage());
}
// 安装应用意图
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
mPendingIntent = PendingIntent.getActivity(UpdateService.this, 0, intent, 0);
//        mContentView.setTextViewText(R.id.notificationTitle, mAppName + "下载完成");
builder.setContentTitle(mAppName + "下载完成").setProgress(0, 0, false);
builder.setContentIntent(mPendingIntent);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
mNotificationManager.notify(mNotificationId, builder.build());
}
//        mNotification.setLatestEventInfo(UpdateService.this, mAppName, "下载完成", mPendingIntent);

}

/**
* 自动安装
*/
public void autoInstallApk() {
if (null != mContext) {
Log.d("UpdateService", "下载完成==");
Uri uri = null;
try {
uri = Uri.fromFile(getFile());
} catch (Exception e) {
Log.e("UpdateService", "自动更新 >>> 安装失败:" + e.getMessage());
}
Log.d("UpdateService", "自动更新 uri = " + uri);
// 安装应用意图
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivity(intent);
}
}

}