reachability

问题 This question already has answers here : Determining 3G vs Edge (5 answers) Closed 5 years ago . I was trying to check wether the device is connected via 2G (GPRS, EDGE) or 3G (UMTS, HSDPA). I only found the Reachability example class from here (Apple Dev Example) This example only check wether its Wifi or WWAN. I wanna use it to decide wether I download the small data or the huge files. As it is big different between GRPS and UMTS. Is it possible to distinguish 2G and 3G? 回答1: This is

问题 Is it wise to use Reachability Class(from Apple) to check for a remote host's availability ? say for example, www.google.com or should I use NSString *connectedString = [[NSString alloc] initWithContentsOfURL:[NSURL URLWithString:@"http://www.google.com/"]]; if ([connectedString length] != 0) // Host Available Which is the best option since I've heard that Reachability is having bug with checking for host's availability ? 回答1: Here is a good way to check if host is reachable: NSURLResponse

问题 My iphone app is pretty simple with one view that handles everything, in viewDidLoad I check to see if we have an internet connection and if we do we load from the web and if not we load from a local resource. And this works fine. //in viewDidOnload [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleNetworkChange:) name:kReachabilityChangedNotification object:nil]; reachability = [Reachability reachabilityForInternetConnection]; [reachability startNotifier];

问题 After I have read the answer for this question I have found that using reachabilityWithHostName does not work with a URL such as this one: mySite.com/service.asmx , is there anyway to check reachability against this URL using reachabilityWithHostName or any reachability class method ? thanks so much in advance. 回答1: The Reachability class and -reachabilityWithHostname: is designed to be a quick, fail-fast mechanism to determine whether you have basic network connectivity to the host. If you

问题 I am using the code below to check for an internet connection. It was working correctly but after the Swift 2.0 update I now see an error on the line var data = NSURLConnection.sendSynchronousRequest(request, returningResponse: &response, error: nil) as NSData? saying extra argument 'error' in call. class func isConnectedToNetwork()->Bool{ var Status:Bool = false let url = NSURL(string: "http://google.com/") let request = NSMutableURLRequest(URL: url!) request.HTTPMethod = "HEAD" request

问题 I just update my pods. after update Reachability causing an error Unexpected platform condition (expected 'os', 'arch', or 'swift') I tried to build and clean but it does not work. what's the solution? Please help me to fix this. Thanks in advance. 回答1: use this 1 #if (arch(i386) || arch(x86_64)) && os(iOS) #endif 回答2: You can try as Muhammad says. I suggest the following code which is very easy to maintain. Copy paste the following code to a file and try yourself. import Foundation import

问题 I currently try to use Reachability in iOS 5.1 on iPad. There is a modification by Tony Million on Github which I tried to use. Unfortunately in my project it didn't work! I compared his project to mine and didn't find any differences. I also tried to hardcopy his example code But it still doesn't work!!! (Yes, I added SystemConfiguration.framework) Every time I try to compile I get a Undefined symbols for architecture i386 error. Here my complete error message: Undefined symbols for

问题 I am using MonoTouch to develop an app which will connect to remote devices on a network. These devices have data which can be access through http queries. If I provide a valid IP address to a controller the app works perfectly, however it hangs for a long time if the controller is not on the network. For this reason I thought it would be good to use the Reachability.cs class which can be found here: https://github.com/xamarin/monotouch-samples/blob/master/ReachabilitySample/reachability.cs

问题 I just implemented Apple's Reachability code and my App is now crashing in a completely inconsistent and random fashion: it could successfully load 20 web-pages in a row - but then crash on the 21st. attempt, or it could crash after just the 2nd. web-page load attempt Instruments/NSZombies shows something strange: the RefCt gets to be as high as 20 (!), with the "Responsible Callers" being several different ones: [UIRuntimeConnection initWithCoder], [UINib instantiateWithOwner: options],

问题 I am developing an iphone application which uses internet.So in order to handle the network connection errors i would like to use reachability,but from apple site api reference it states that build and runtime requires iOS4 but i am developing application for iphone 2g which only supports upto iphone os 3.1.3.So any one could help me in implementing the reachabilty class. Thanks in advance for all stackoverflow masters........ 回答1: Check out the modified Reachability in ASIHTTPRequest, which