handler

Handlers in for-loop Services

由 北慕城南 提交于 2019-12-11 18:12:28
问题 I used the following code in Activity class, it was working fine.K was updated accordingly. But when I used it in service class, the variable k in for-loop is not waiting for handler. for( k=0;k<personsToSend.length;k++) { Log.e(TAG,"outside k = "+k); new Handler().postDelayed(new Runnable() { public void run() { Log.e(TAG,"Inside k = "+k); } }, 1000); } Logcat: outside k = 0 outside k = 1 outside k = 2 outside k = 3 outside k = 4 Inside k = 5 Inside k = 5 Inside k = 5 Inside k = 5 Inside k =

GWT- Suggestbox listener not working

由 不羁的心 提交于 2019-12-11 17:54:11
问题 I need to add a handler that fires when a selection is CLICKED which will then validate the value. Current functionality is validating (through textInput on blur) right before the entire value is recorded from the suggestbox, thus not passing validation (when it should). Here is what i tried right below where i implement the suggestbox in the TextInput page: public void onModuleLoad() { SuggestBox box = new SuggestBox(createListOracle(),myTextBox()); box.addSelectionHandler(new

How to handle Android SimpleExpandableListAdapter entry selection

由 前提是你 提交于 2019-12-11 16:35:16
问题 I have created an expandable list in my Android application using the SimpleExpandableListAdapter type. But I'm at a complete loss as to how I detect events when one of the child entries has been selected/clicked. I've tried all the usual OnClickListener/OnChildClickListener etc, but can't seem to find (by experimentation, or half an hour googling) what the correct handler routines should be. Any help greatfully appreciated. 回答1: It should be: list.setOnChildClickListener(new

org.eclipse.jetty.io.EofException: Closed问题排查

由 空扰寡人 提交于 2019-12-11 16:14:30
输出流被关闭后，继续向里面写入引起的（接口不能同时返回文件流和数据信息，因为关闭代码里关闭一般都是放在finally里，但是finally是在return执行前，所以会出现finally先关闭IO，然后做返回数据内容。解决方法返回空值。） org.eclipse.jetty.io.EofException: Closed at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:476) at org.springframework.cloud.sleuth.instrument.web.TraceServletOutputStream.write(TraceServletOutputStream.java:120) at com.fasterxml.jackson.core.json.UTF8JsonGenerator._flushBuffer(UTF8JsonGenerator.java:2039) at com.fasterxml.jackson.core.json.UTF8JsonGenerator.flush(UTF8JsonGenerator.java:1051) at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter

GWT ValueChangeHandler and getting before value

由 僤鯓⒐⒋嵵緔 提交于 2019-12-11 16:06:57
问题 I want to get values of my textBox before change its value and after changed its value. String beforeValue = ""; TextBox textBox = new TextBox(); textBox.addFocusHandler(new FocusHandler() { public void onFocus(final FocusEvent event) { beforeValue = textBox.getText(); } }); textBox.addValueChangeHandler(new ValueChangeHandler<String>() { public void onValueChange(final ValueChangeEvent<String> event) { System.out.println("Before value is " + beforeValue); System.out.println("After value is "

Golang中间件【转】

由 戏子无情 提交于 2019-12-11 15:48:16
本章将对现在流行的 web 框架中的中间件技术原理进行分析，并介绍如何使用中间件技术将业务和非业务代码功能进行解耦。 代码泥潭 先来看一段代码： // middleware/hello.go package main func hello(wr http.ResponseWriter, r *http.Request) { wr.Write([]byte("hello")) } func main() { http.HandleFunc("/", hello) err := http.ListenAndServe(":8080", nil) ... } 这是一个典型的 web 服务，挂载了一个简单的路由。我们的线上服务一般也是从这样简单的服务开始逐渐拓展开去的。 现在突然来了一个新的需求，我们想要统计之前写的 hello 服务的处理耗时，需求很简单，我们对上面的程序进行少量修改： // middleware/hello_with_time_elapse.go var logger = log.New(os.Stdout, "", 0) func hello(wr http.ResponseWriter, r *http.Request) { timeStart := time.Now() wr.Write([]byte("hello")) timeElapsed := time

Safely handle Hibernate “SET TRANSACTION must be first statement of transaction” error

由 大兔子大兔子 提交于 2019-12-11 14:14:55
问题 I'm not sure if I'm asking the correct question to begin with, apologies in advanced. Question I am wondering if it is possible to have some type of handler to rollback an erroneous transaction in Hibernate. I am having a problem which, whenever an error comes up during a batch update from Hibernate the "SET TRANSACTION must be first statement of transaction" error comes up and I would not be able to do any other query after that. Thanks :) 回答1: Hibernate don't have an automatic transaction

bind event handler on keydown listen function JavaScript jQuery

由 喜你入骨 提交于 2019-12-11 14:05:13
问题 I am trying to bind a handler to an event. The event is a keydown function. The handler will listen for hit variables to produce one of two conditions. The 1st condition (odd number of hits) will perform 1 function, the 2nd (even number of hits) will perform another function. To elaborate, the 1st function will scroll to one element, the 2nd will scroll to another element FIDDLE Above is a link to a demo, there is a nasty bug which you can see. The only thing I can think of is that the

Start new activity in window manager

由 淺唱寂寞╮ 提交于 2019-12-11 13:19:30
问题 I want to start a new activity, the activity plays a live stream from a source. When I start the activity, it plays the content on the whole screen. I want to display the contents of the stream in a small screen which is a surfaceview. I am doing this by using a handler which runs a runnable and so on. This is how I am doing it: //new activity played from here Intent localIntent3 = new Intent("android.intent.action.MAIN"); //intent flag set to start a new task over the previous one

Handling PostTooLargeException in Laravel 5.5

由 假装没事ソ 提交于 2019-12-11 11:57:12
问题 I am trying to handle PostTooLargeException in my Laravel 5.5 application. When I trying to upload too big file through my form I receive PostTooLargeException which I successfully catch in app\Exceptions\Handler.php , but on that step I would like to redirect user back to the page with form and show an error message. I wrote following code: class Handler extends ExceptionHandler { ... public function render($request, Exception $exception) { ... if($exception instanceof PostTooLargeException)
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