connectivity | 易学教程

Passing Data From A Class To WatchOS 2 (Connectivity)

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问题 I'm hoping someone here may have some thoughts on Watch OS 2 connectivity that can point me in the right direction. Succinctly, I am trying to pass a set of data (from a custom class called FileData) to my WatchKit extension. When I run the WatchKit app, I can see that the WCSession is being activated, but the dataset never seems to get passed to the Watch (though if I change the data to a String and pass something simple like "hello", it does work properly); TableViewController.swift (iOS

iOS enterprise vpn connectivity

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问题 In an iOS application if you had to access corporate remote services, through VPN, what would be your pattern to ensure you have connectivity and inform the user if that's not the case: check that your network and VPN are working (by checking if some host like google.com and some private enterprise host are reachable) and if that's the case then call the remote service? or call directly the remote service, and if there is a network exception, then check if both a network host and an

Check for internet connection in Flash?

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问题 How do I check for an active internet connection in Flash using Actionscript 3? 回答1: If you are using AIR, you can use the ServiceMonitor class. Otherwise you might want to consider rolling your own with a URLLoader coupled with a timer with an exponential backoff. 回答2: to expand on martineno's answer about rolling your own using the URLLoader, read about the HTTPStatusEvent in the documentation. at the end of the document Adobe includes an example for checking for the existence of a file on

ASP.NET Core - Application not connecting to database after publishing

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问题 This question was migrated from Database Administrators Stack Exchange because it can be answered on Stack Overflow. Migrated 2 years ago . I created a simple ASP.Net Core application with user authentication (so all the Entity Framework has been preloaded into the web app template). It is connecting to my database with the connectionString that is located in my appsettings.json file, with "data source = {computerName}\\{serverName}" setup. The database instance and Visual Studio are located

Multipeer Connectivity with personal Hotspot not working

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I am working with Multipeer connectivity. It works fine when all devices are connected to same wifi. I have 1 master and 5 slaves devices . I want to do connectivity with personal hotspot but everytime the connection will declined. This is my code : class SessionManager: NSObject, MCSessionDelegate, MCBrowserViewControllerDelegate, MCNearbyServiceAdvertiserDelegate, MCNearbyServiceBrowserDelegate { func browser(_ browser: MCNearbyServiceBrowser, foundPeer peerID: MCPeerID, withDiscoveryInfo info: [String: String] ? ) { browser.invitePeer(peerID, to: mcSession, withContext: nil, timeout: 10) }

Determining if a graph is K-vertex-connected

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问题 I'm looking to come up with an polynomial time algorithm that takes input in the form of a graph, G, and an integer, K, and determines whether G is K-vertex connected. I'm thinking that this would likely utilize Depth First Search. I can see how it could be none with a none-polynomial solution, i.e. just deleting K random vertices, running DFS to check for connectivity, and then doing it again with a different group of vertices. A run time of ~O(n^K) is a little much though, and it is

NetworkAvailability check returns false yet the phone is online

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问题 I have am having some issues with getting consistent results when checking if the network is available or not. I use this code snippet inside a class AppPreferences to check the availability of a network. /** * @return the networkAvailable */ public boolean isNetworkAvailable() { connectionManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); networkAvailable = connectionManager.getActiveNetworkInfo() != null && connectionManager.getActiveNetworkInfo()

partial wakelock for 3G in Android

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问题 I have a service that uploads file to a server. I acquire a wifilock on it but do I need a partial wakelock if the service is using 3G ? 回答1: WakeLock is an Inefficient way of keeping the screen on. Instead use the WindowManager to do the magic. The following one line will suffice the WakeLock. The WakeLock Permission is not needed for this to work. Also this code is efficient than the WakeLock. getWindow().addFlags(LayoutParams.FLAG_KEEP_SCREEN_ON); You need not relase the WakeLock Manually.

How to deploy an .appx into Windows Phone 8.1

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问题 I use the Microsoft.SmartDevice.Connectivity to connect to Windows Phone 8.1 OS with the instruction in this link: connect to windows phone 8 using console application Now I can connect to both Windows Phone 8.1 Emulator or Windows Phone 8.1 Device, and I can launch any application by using their ProductID. So now I would like to install my apps which I developed to these device by using this framework. I know that the XAP package for WP8.1 is an .appx file. To install 1 apps in this

ReachabilityWithAddress error giving it an ip address

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问题 hey Im trying to see if I can connect to an IP address. My code atm: #import "ViewController.h" #import "SystemConfiguration/SystemConfiguration.h" @implementation ViewController struct sockaddr_in ; - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. Reachability *d = [Reachability reachabilityWithAddress:const struct sockaddr_in ???????]; NetworkStatus internetStatus = [d currentReachabilityStatus]; //NetworkStatus