reachability

I am developing an iOS app, What i want to do is, whenever user turned on/off his internet from setting app, i want to set some notification to device. In short, i want to send some data (stored in NSUserDefaults) to server whenever internet connection is available(assuming internet connection appears after 2 3 days)....possible? Please help and thanks in advance. Try this Apple example: https://developer.apple.com/library/ios/samplecode/Reachability/Introduction/Intro.html If you want this to work when app in background try background task If you what your app doesn't suspend in background

I have Reachability working exactly as suggested as in this thread . I am using the open source Reachability . However I am not using blocks but notifications, hence the process is pretty similar to the Apple's Reachability code. The first time I start the app, I run this and it works great. Reachability *reachability = [reach hostReachability]; [reachability startNotifier]; The reachabilityChanged: event is firing: [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reachability_Changed:) name:kReachabilityChangedNotification object:nil]; However once I press the home

I am interested in using the SBUsesNetwork and UIRequiresPersistentWiFi keys in my application; however, I would like to enable them only when using a certain set of view controllers. Is there a way to programmatically flip those key values while the application is running? You can't modify your bundle contents while running, you don't have write access to that directory. I'm not sure there's a way to do exactly what you want. I know you can get your info.plist as an NSDictionary via NSBundle with the following: NSDictionary* infoDictionary = [[NSBundle mainBundle] infoDictionary]; from there

序言 网络连接状态检测对于我们的iOS app开发来说是一个非常通用的需求。为了更好的用户体验，我们会在无网络时展现本地或者缓存的内容，并对用户进行合适的提示。对绝大部分iOS开发者来说，从苹果示例代码改变而来的各种Reachablity框架是实现这个需求的普遍选择,比如这个库。但事实上，基于此方案的所有实现，都无法帮助我们检测真正的网络连接状态，它们能检测的只是本地连接状态；这种情况包括但不限于如下场景： 1.现在很流行的公用wifi，需要网页鉴权，鉴权之前无法上网，但本地连接已经建立； 2.存在了本地网络连接，但信号很差，实际无法连接到服务器； 3.iOS连接的路由设备本身没有连接外网。 CocoaChina上已有很多网友对此进行提问和吐槽，比如： 如何判断设备是否真正连上互联网？而不是只有网络连接 [Reachability reachabilityWithHostName:]完全没用！ 苹果的Reachability示例 中有如下说明，告诉我们其能力受限于此： "Reachability cannot tell your application if you can connect to a particular host, only that an interface is available that might allow a connection, and

I'm using the Reachability classes for checking when I got an internet connection en when it goes down. This is my code: IN VIEW DID LOAD: internetReachable = [Reachability reachabilityForInternetConnection]; [internetReachable startNotifier]; // check if a pathway to a random host exists hostReachable = [Reachability reachabilityWithHostname:@"www.google.com"]; [hostReachable startNotifier]; Then the notification method -(void) checkNetworkStatus:(NSNotification *)notice { // called after network status changes NetworkStatus internetStatus = [internetReachable currentReachabilityStatus];

I'm writing a travel guide related app that will download large databases (60meg) potentially overseas, with the reachability code I can tell when a host is reachable via wifi or 3g BUT I'm worried that if for some reason the wifi connection breaks for a minute or so as some DSL connections are likely to do on occasion the iphone will switch transparently to 3G and without realising I could be racking up someones phone bill with overseas data charges! So I'm wondering if anyone has any experience, in the event of such break in wifi connectivity (wifi still works but it's connection to the net