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wcf聊天功能源码下载
wcf聊天功能源码下载
- 2015-08-26下载
- 积分：1
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android 异步 执行 任务 例子 附讲解
Rules::The AsyncTask instance must be created in UI thread. .execute must be invoked on the UI thread.Never call objMyTask.onPreExecute(), objMyTask.doInBackground(), objMyTask.onProgressUpdate(), objMyTask.onPostExecute manually.The AsyncTask can be executed only once (an exception will be thrown if a second execution is attempted.)AsyncTask have Four Main Method... onPreExecute() doInBackground() onProgressUpdate() onPostExecute() onPreExecute-This method is called first when you start AsyncTask using objAsync.execute().And mostly this method is use for initializing dialog(ProgressDialog,CustomDialog) and showing. doInBackground-The main purpose of AsyncTask is accomplished by this method.Any non-UI thread process is running in this method.Such as Rss Feed Reader,Image and video Uploading and Downloading.You cant handle your View in this method.Because this method is non-UI thread.While any background process is running if you want to handle UI therea are onProgressUpdate method. after completion of process this method send result to OnPostExecute. onProgressUpdate-While backgrounding task is running ,you can handle your UI using this method .Such as status of downloading or uploading task.and this method is called from doInBackground.Using publishProgress() you can call onProgressUpdate method to update UI while process is running. onPostExecute -This method is called after the background computation finishes.The result of background process in passed in this method as parameters.And now you can dismiss progress dialog ,to indicate that background task is completed. You can cancel AsyncTask using objAsyncTask.cancel().then you just check in doInBackground, if (isCancelled()) { break; } else { //continue... } See this Image For more Clear.
- 2013-07-05下载
- 积分：1
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android 短信拦截 实例完整源码下载
可实现拦截短信，自动转发的功能。 部分代码：import android.app.AlarmManager;import android.app.PendingIntent;import android.app.Service;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.os.IBinder;import android.os.PowerManager;import android.os.PowerManager.WakeLock;public class MyService extends Service{ SMSReceiver rs=null; static MyService service; private static PendingIntent pi = null; public static AlarmManager am = null; @Override public IBinder onBind(Intent intent) { // TODO Auto-generated method stub return null; } @Override public void onCreate() { // TODO Auto-generated method stub super.onCreate(); service=this; pm = (PowerManager) getSystemService(Context.POWER_SERVICE); registerAlarm(); acquireWakeLock(this); registerRecever(); } @Override public void onDestroy() { // TODO Auto-generated method stub super.onDestroy(); releaseWakeLock(); unregisterAlarm(); } private void registerRecever(){ rs=new SMSReceiver(); IntentFilter filter=new IntentFilter(); filter.addAction("android.provider.Telephony.SMS_RECEIVED"); filter.setPriority(1000); registerReceiver(rs, filter); } @Override public int onStartCommand(Intent intent, int flags, int startId) { // TODO Auto-generated method stub if(rs==null)registerRecever(); return START_STICKY; } public static WakeLock wakeLock = null; private static PowerManager pm = null; public static synchronized void acquireWakeLock(Context c) { if (null == wakeLock) { wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "smslock"); wakeLock.acquire(); } } public static synchronized void releaseWakeLock() { if (wakeLock == null) return; if (wakeLock.isHeld()) { wakeLock.release(); wakeLock = null; } } /** * 启动重复型定时器 */ public static void registerAlarm() { if(Config.getAlarm())return; Intent intent = new Intent(service, AlarmReceiver.class); pi = PendingIntent.getBroadcast(service, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); // 设置一个PendingIntent对象，发送广播 am = (AlarmManager) service.getSystemService(Context.ALARM_SERVICE); // 获取AlarmManager对象, Config.setAlarm(true); am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 30*60*1000, pi); } /** * 取消定时器 */ public static void unregisterAlarm() { am.cancel(pi); am = null; Config.setAlarm(false); }}
- 2014-05-21下载
- 积分：1
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如何成为电子工程师丛书系列(10-17篇)
第10篇 电力电子技术 第11篇 电子测量与电子仪器 第12篇 机械量的电子测量 第13篇 电子计算机 第14篇 自动控制与控制仪表 第15篇 电子技术在机械制造方面的应用 第16篇 医疗电子技术 第17篇 电子产品的工艺 结构与可靠性
- 2019-04-17下载
- 积分：1
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android os线程通讯实例 附完整源码
android os线程通讯实例 附完整源码
- 2013-04-20下载
- 积分：1
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android 实现后台service持续运行，并且唤醒之后进入自定义界面 例子
安装之后就能不断的唤醒，实现后台service持续运行，并且唤醒之后进入自定义界面
- 2014-09-19下载
- 积分：1
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android_调用摄像头拍摄一段视频并上传到服务器实例(含android客户端和服务器源码)
简单的一个Demo，实现了android端调用系统的拍摄功能，拍摄，并将视频文件上传到本地的服务器。 源码里面包括了android的程序，服务器接收的源代码（服务器代码是Myeclipse编辑的，服务器为tomcat6.0)。各位亲们，可以修改下服务器的地址，就能上传到网上了
- 2013-02-07下载
- 积分：1
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android 加班统计与记录 应用源码下载
可以记录每天的加班时间，和统计出加班费。
- 2015-06-19下载
- 积分：1
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android 拍照实例源码(调用照相机)
android 拍照实例源码(调用照相机)
- 2014-12-23下载
- 积分：1
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android 通过wifi传输文件的例子源码,参考茄子快传的原理
android 通过wifi传输文件的例子源码,参考茄子快传的原理
- 2014-08-29下载
- 积分：1
