handler

cant create handler inside thread that has not called looper.prepare

由 。_饼干妹妹 提交于 2019-12-11 02:59:54
问题 Note : I know there are many questions related to this, but still I am not convince, so asking. I am getting cant create handler inside thread that has not called looper.prepare when I try to show the dialog. Here is my code... //this method is called from a different method based on some condition which is inturn called on click a button private void download() { thread = new Thread() { public void run() { /**** Downloads each tour's Tour.plist file ****/ try { // do many heavy operations

Parameter Binding in ASP.NET Web API

由 六眼飞鱼酱① 提交于 2019-12-11 02:54:31
问题 I have a DelegatingHandler in my web API for authentification (HMAC). I would like to add a GET parameter to the request to return the user's id to my controller. In my handler, I tried adding it like so: public class SecurityHandler : DelegatingHandler { protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) { string apikey = request.Headers.GetValues(AuthConfig.ApiKeyHeader).First(); UserDTO user = UserRepo.GetUser(apikey); if

Android - Loading images with a delay

由 ♀尐吖头ヾ 提交于 2019-12-11 02:42:46
问题 I'm trying to fake some kind of progress bar. I have X images and want an ImageView to show them with a certain delay. I've tried to do something like this: for(i=2;i<X;i++) { Handler handler = new Handler(); handler.postDelayed(new Runnable() { @Override public void run() { drawable = getResources().getDrawable(getResources() .getIdentifier("img_"+i, "drawable", getPackageName())); imgPayment.setImageDrawable(drawable); }}, DELAY); } But the for loop doesn't wait for the run() to end. I just

Handler changing UI causes CalledFromWrongThreadException

由 回眸只為那壹抹淺笑 提交于 2019-12-11 02:13:40
问题 I've created a Handler that can be accessed from anywhere within the activity and also written a method to make it easier to call the handler: private Handler textFromBGThread = new Handler() { @Override public void handleMessage (Message msg) { // Get the string from the msg String outputString = msg.getData().getString("Output"); // Find the TextView TextView Output = (TextView)findViewById(R.id.ConsoleOutputView); // Display the output Log.i("TextOutput","About to display message: " +

JAX-RPC GenericHandler fails on Websphere Application Server v6.0.2.35

由 时光总嘲笑我的痴心妄想 提交于 2019-12-10 23:53:55
问题 I've created an Extension of GenericHandler called SOAPHeaderHandler. I placed log4j statements in the handler and can see the constructor being built. When I generate a SOAP message, however, I don't see the message related to the handleRequest method. I've registered the Handler in the stub as follows: if (service == null) { super.service = new com.ibm.ws.webservices.engine.client.Service(); } else { super.service = service; } List handlerInfoList = new ArrayList(); QName[] headersArr =

Pass arguments to signal handler in C

由 痴心易碎 提交于 2019-12-10 23:35:11
问题 How can I pass arguments (e.g. a pointer to a struct) to a signal handler? I'm writing a multithread application, so I cannot use global variables I associate a timer to each thread. When timer expires I have to update a struct (each thread has a different struct). How can I do? 回答1: The way the signal handler is called by the system is fixed -- there's no way to change it and add an additional user pointer. So if you want to get additional data into the signal handler, the only way to do it

spring boot项目自定义拦截器（Inteceptor）

由 ￣綄美尐妖づ 提交于 2019-12-10 20:04:03
客官，有过滤器有拦截器，要哪一款？ 这两种有啥区别？ 参考资料 拦截器和过滤器的区别 怎么搞一个拦截器呢？ 1、首先，写一个拦截器 public class UrlInterceptor extends HandlerInterceptorAdapter { /** * 在请求处理之前进行调用（Controller方法调用之前） * 基于URL实现的拦截器 * @param request * @param response * @param handler * @return * @throws Exception */ @Override public boolean preHandle ( HttpServletRequest request , HttpServletResponse response , Object handler ) throws Exception { String path = request . getServletPath ( ) ; if ( 。。。 ) { //如果这个地址是这样这样 //那么你就这样这样 return true ; } else { //如果这个地址是那样那样 //你先这样这样 // 这写你拦截需要干的事儿，比如取缓存，SESSION，权限判断等 System . out . println ( "==>" ) ; /

Symfony2 - Logout and clear cache + prevent back button

由 大兔子大兔子 提交于 2019-12-10 19:57:07
问题 I try to kill browser cache when user logout. I implement the LogoutSuccessHandlerInterface to extends the onLogoutSuccess method. There is no error but when I logout, I can press back button in browser and I see my profil page => If I refresh this page, I am automatically redirected, so I am correctly logged out. security.yml logout: path: /logout target: / invalidate_session: true success_handler: project_user.handler.logout_handler services.yml project_user.handler.logout_handler: class:

使用Java实现hello/hi的简单网络聊天程序

由 浪子不回头ぞ 提交于 2019-12-10 19:12:24
Socket又称套接字，是基于应用服务与TCP/IP通信之间的一个抽象，将TCP/IP协议里面的通信逻辑进行分装，只要通过一组简单的API就可以实现网络的链接。 分别开两个线程，一个作为服务端，一个作为客户端。客户端主要监听端口上的信息，并以字节流读取并显示，同时在Server类里面，还需要同时开启监听和发送信息的线程。每连上一个客户端，就需要对应开启一个监听信息的线程。 服务器端： import java.io.*; import java.net.InetAddress; import java.net.ServerSocket; import java.net.Socket; import java.util.Scanner; public class Server extends Netutil { public static void main(String[] args) { new Server().Get(); } /*进入的方法*/ public void Get() { try { ServerSocket serverSocket = new ServerSocket(4432); InetAddress inetAddress = InetAddress.getLocalHost(); // System.out.println("开启服务器");

【转】Android Telephony分析(二) ---- RegistrantList详解

由 人走茶凉 提交于 2019-12-10 19:06:53
前言 本文主要讲解RegistrantList的原理，以及如何快速分析RegistrantList相关的代码流程。 在Telephony模块中，在RIL、Tracker(ServiceStateTracker、CallTracker、DcTracker)、Phone(PhoneBase及其子类)、UICC框架、CallManager等等中都大量使用到的RegistrantList，可见RegistrantList使用范围之广。如果代码流程中使用了RegistrantList，如何分析下一步代码流程走到哪里也是必须掌握的技能。 1. RegistrantList的原理 在讲解RegistrantList之前，先引出观察者模式的概念： 观察者模式：定义对象间的一种一(Subject)对多(Observer)的依赖关系，当一个对象的状态发生改变时，所有依赖于它的对象都得到通知并且自动更新。 RegistrantList跟观察者模式有点类似，先创建一个RegistrantList集合，专门关注某种消息；如果有人也对该消息感兴趣的话，那么为他封装一个Registrant对象并且添加到RegistrantList中；当有消息上报时，先通知RegistrantList，接着所有注册到RegistrantList中的Registrant都会被通知到并且更新。
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