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2014/10/15 ¤U¤È 10:15:30

iphone Programming Glossary: unreachable

Reachability sometimes fails, even when we do have an internet connection

http://stackoverflow.com/questions/1281232/reachability-sometimes-fails-even-when-we-do-have-an-internet-connection

flags kSCNetworkFlagsConnectionRequired if isAvailable NSLog @ Google is reachable d flags else NSLog @ Google is unreachable return isAvailable iphone objective c share improve this question Looks like you've stripped out some basic reachability..

Why my array instance is out of scope?

http://stackoverflow.com/questions/4177662/why-my-array-instance-is-out-of-scope

this question It isn't. An object cannot be out of scope because objects do not have scope. What they can be is unreachable which is what happens when you don't have any variables holding the object's pointer. Variables can be out of scope. You..

textField:shouldChangeCharactersInRange:replacementString:

http://stackoverflow.com/questions/7531834/textfieldshouldchangecharactersinrangereplacementstring

NSString string NSUInteger newLength textField.text length string length range.length return newLength 10 NO YES unreachable So you are just checking the length but not whether the input is numerical. Change this line return newLength 10 NO YES..

How do I receive notifications that the connection has changed type (3G, Edge, Wifi, GPRS)

http://stackoverflow.com/questions/7685152/how-do-i-receive-notifications-that-the-connection-has-changed-type-3g-edge-w

statusString @ Access Not Available Minor interface detail connectionRequired may return yes even when the host is unreachable. We cover that up here... connectionRequired NO break case ReachableViaWWAN statusString @ Reachable WWAN UIAlertView..

How to write a simple Ping method in Cocoa/Objective-C

http://stackoverflow.com/questions/798454/how-to-write-a-simple-ping-method-in-cocoa-objective-c

is this a good idea The method only needs to ping a few times and return the average and 1 if the host is down or unreachable. iphone objective c cocoa cocoa touch networking share improve this question The code below seems to be working synchronously..