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Checking if an Android application is running in the background
...er class. Good choices are your own implementation of the Application or a Service (there are also a few variations of this solution if you'd like to check activity visibility from the service).
Example
Implement custom Application class (note the isActivityVisible() static method):
public class...
Why does my JavaScript code receive a “No 'Access-Control-Allow-Origin' header is present on the req
...lls "POST" properly, but when we call it, it will be "OPTIONS".
For C# web services - Web API
Please add the following code in your web.config file under <system.webServer> tag. This will work:
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" va...
How do I use $scope.$watch and $scope.$apply in AngularJS?
...on <span>{{myVar}}</span>
By adding it manually via the $watch service
Ad 1)
This is the most common scenario and I'm sure you've seen it before, but you didn't know that this has created a watch in the background. Yes, it had! Using AngularJS directives (such as ng-repeat) can also cr...
How to get a list of all valid IP addresses in a local network? [closed]
... Is there any chance nmap might crash or do any harm to any of the services or machines running in the subnet?
– Jin
Jun 27 '17 at 19:10
1
...
how to use python to execute a curl command
...pplication/json' --data '{"text":"Hello, World!"}' https://hooks.slack.com/services/asdfasdfasdf
Becomes this in Python,
import requests
headers = {
'Content-type': 'application/json',
}
data = '{"text":"Hello, World!"}'
response = requests.post('https://hooks.slack.com/services/asdfasdfas...
What browsers support HTML5 WebSocket API?
...ckets, SockJS as fallback for WebSockets
Pusher.com is a Websocket cloud service accessible through a REST API.
DotCloud cloud platform supports Websockets, and Java (Jetty Servlet Container), NodeJS, Python, Ruby, PHP and Perl programming languages.
Openshift cloud platform supports websockets,...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
In my multithreaded asmx web service I had a class field _allData of my own type SystemData which consists of few List<T> and Dictionary<T> marked as volatile . The system data ( _allData ) is refreshed once in a while and I do it by creating another object called newData and fill...
When use getOne and findOne methods Spring Data JPA
...
If wrapped inside a CompletableFuture<> web service I've found that you'll want to use findOne() vs. getOne() because of it's lazy implementation.
– Fratt
Jun 28 '18 at 16:04
...
Windows下 C++网络延时检测 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
unsigned char Ttl; // Time To Live
unsigned char Tos; // Type Of Service
unsigned char IPFlags; // IP flags
unsigned char OptSize; // Size of options data
unsigned char FAR *Options; // Options data buffer
}IPINFO;
typedef IPINFO* PIPINFO;
typedef struct _ICMPECHO
{
un...
Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
... @AndyDangerGagne The Composition Root is a DI pattern - the opposite of Service Locator. From the perspective of the Composition Root, none of types are polymorphic; the Composition Root sees all types as concrete types, and thus, the Liskov Substitution Principle doesn't apply to it.
...