internet-connection

问题 In one of my iPhone app, I need to find out whether there is internet connection with the device or not. Anyone pls help? 回答1: Use Reachability class. if([self checkInternetConnected] ) { NSLog(@"Internet connected\n"); } - (BOOL)checkInternetConnected { Reachability *reachability = [Reachability reachabilityForInternetConnection]; NetworkStatus networkStatus = [reachability currentReachabilityStatus]; return !(networkStatus == NotReachable); } You can get rechability class here : Download

问题 I'm developing an embedded device which has access to the internet through LAN. I'm in the testing phase now, and I would like to test how the device performs when the connection to the internet is poor. Currently, the device is connected to a router through a hub, which I use to monitor the packets with Wireshark. What's the best way to throttle down the internet speed of the device to mimic a scenario that may happen? Can I do it through a PC? Do I need access to the router? If so, is it

问题 For our app, we use the following code to check for internet connection whenever the app user is trying to post a message. When we test the feature, it works fine when turning on the airplane mode. Then when we turn off the airplane mode, the call to connected still returns NO. What could be the reason for that? Do we need extra "setup" in the order in order to get it right? such as listen to network state change notifications? + (BOOL)connected { Reachability *hostReach = [Reachability

问题 I have a requirement where I want to check whether there is any internet connectivity when I am connected with the network. For example, I have device A and device B. Device A is connected with hotspot with that of device B. In device A, I get it as connected with Wi-Fi and in device B - one device connected with hotspot. Now, if I remove the internet from device B (not the tethering hotspot), then in device A, it still shows - connected with Wi-Fi but there is no internet connectivity.

问题 I have no Internet access in my Android Emulator. The app I am developing needs Internet connection, but the Android Emulator have no internet connection. I also tried to use the native browser of the emulator, but it also does not work. When I export my app to a real android, it works just fine. I already tried to press F8 to turn on and off the "3G connection" in the emulator. I already turned off the Windows Firewall, but it didn't work. Data: Windows 7 x64 Eclipse Plugin for Android

问题 I have two apps Client App and Server App in android What i want To check in my server app that weather client app has internet connection or not. What i have done I had read this post I have used BroadcastReciever to Listen weather internet is available or not. All is well. When internet connection goes right , i am saving value online to Firebase "true" But When internet connection goes off , i am using Firebase onDisconnect() method to save ServerValue.TIMESTAMP It works sometime in two

问题 I need to write some code to trigger internet connectivity on a computer. By default,internet should not work. But,after installing my program,internet should work. Ofcourse the computers are connected to my server and normally access internet through DHCP right now. But,give me some ideas to make things in such a way that only installing my program enables internet connectivity. Thanks 回答1: I know you don't want to use one, but the correct & easiest tool to use would be a proxy. You'd have

问题 I am working on an application that needs to communicate with the server. Hence, the check for the internet connectivity is implemented. The check works perfectly fine when I am working with mobile data and wifi. The issue is my device is connected with hotspot. I click on the login button and get the progress bar that states "Connecting to the server". Now, I turn off the hotspot. But the wifi is enabled in my device. (It simply fails to get any responseCode). My application gets into the

问题 So I've decided to try out the new Volley library as shown on Google IO 2013. I've tried it out while using the easy solution of NetworkImageView to show multiple images on a GridView . It works nice and shows images, but if I let it download the images and then I turn off the WiFi during the download, it doesn't show an error as if everything still loads. Not only that, but if I restore the connection, it doesn't resume the loading. Why does it occur, and how can I fix it? Maybe it's

问题 how do you folks check if the device is connected to the internet in a sencha touch app? 回答1: There's an attribute called navigator.onLine (general browser support, not specific for Sencha) If I'm in a PhoneGap application (which you often are if you're using Sencha Touch), I'd rather use their network.isReachable function, since I've by experience found it more reliable. There's also something called 'Offline events', John Resig describes them on his blog: http://ejohn.org/blog/offline