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2014/10/15 ¤U¤È 10:10:31
iphone Programming Glossary: interfacesDeclaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec SampleClass 6 define ivars 7 define methods and synthesize properties from both public and private interfaces @end My understanding of 1 and 4 is that those are C style file based declarations and definitions that.. mostly ignored. Is that the case Regarding 5 why would I ever want to declare methods in private interfaces My private class methods seem to compile just fine without a declaration in the interface. Is it mostly..
Get to UIViewController from UIView on iPhone? http://stackoverflow.com/questions/1340434/get-to-uiviewcontroller-from-uiview-on-iphone assign MyViewDelegate delegate @end @interface MyViewController MyViewDelegate @end The view interfaces with its delegate as UITableView does for instance and it doesn't care if its implemented in the view..
iPhone get SSID without private library http://stackoverflow.com/questions/5198716/iphone-get-ssid-without-private-library CaptiveNetwork.h id fetchSSIDInfo NSArray ifs id CNCopySupportedInterfaces NSLog @ s Supported interfaces @ __func__ ifs id info nil for NSString ifnam in ifs info id CNCopyCurrentNetworkInfo CFStringRef ifnam.. output 2011 03 04 15 32 00.669 ShowSSID 4857 307 ShowSSIDAppDelegate fetchSSIDInfo Supported interfaces en0 2011 03 04 15 32 00.693 ShowSSID 4857 307 ShowSSIDAppDelegate fetchSSIDInfo en0 BSSID ca fe ca fe..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers can easily use it in my own application assuming BookWarehouse and CheckoutController are generic interfaces i.e. protocols that I can implement @interface MyBookWarehouse NSObject BookWarehouse ... @end @implementation..
iPhone/iPad/OSX: How to get my IP address programmatically? http://stackoverflow.com/questions/7072989/iphone-ipad-osx-how-to-get-my-ip-address-programmatically #import arpa inet.h Get IP Address NSString getIPAddress NSString address @ error struct ifaddrs interfaces NULL struct ifaddrs temp_addr NULL int success 0 retrieve the current interfaces returns 0 on success.. struct ifaddrs interfaces NULL struct ifaddrs temp_addr NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked list of interfaces.. NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked list of interfaces temp_addr interfaces while temp_addr NULL if temp_addr..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring iphone ios sockets share improve this question The thing is that pdp_ip0 is one of interfaces all pdpXXX are WWAN interfaces dedicated to different functions voicemail general networking interface... share improve this question The thing is that pdp_ip0 is one of interfaces all pdpXXX are WWAN interfaces dedicated to different functions voicemail general networking interface. i read in apple forum that.. stringWithFormat @ s cursor ifa_name NSLog @ ifa_name s @ n cursor ifa_name name names of interfaces en0 is WiFi pdp_ip0 is WWAN if cursor ifa_addr sa_family AF_LINK if name hasPrefix @ en networkStatisc..
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec private methods and properties here @end @implementation SampleClass 6 define ivars 7 define methods and synthesize properties from both public and private interfaces @end My understanding of 1 and 4 is that those are C style file based declarations and definitions that have no understanding whatsoever of the concept of class.. out outside of the @synthesize directive and thus can be mostly ignored. Is that the case Regarding 5 why would I ever want to declare methods in private interfaces My private class methods seem to compile just fine without a declaration in the interface. Is it mostly for readability Thanks a bunch folks iphone objective c..
Get to UIViewController from UIView on iPhone? http://stackoverflow.com/questions/1340434/get-to-uiviewcontroller-from-uiview-on-iphone @end @interface MyView UIView @property nonatomic assign MyViewDelegate delegate @end @interface MyViewController MyViewDelegate @end The view interfaces with its delegate as UITableView does for instance and it doesn't care if its implemented in the view controller or in any other class that you end up using. My..
iPhone get SSID without private library http://stackoverflow.com/questions/5198716/iphone-get-ssid-without-private-library On iOS 4.1 you can do this #import SystemConfiguration CaptiveNetwork.h id fetchSSIDInfo NSArray ifs id CNCopySupportedInterfaces NSLog @ s Supported interfaces @ __func__ ifs id info nil for NSString ifnam in ifs info id CNCopyCurrentNetworkInfo CFStringRef ifnam NSLog @ s @ @ __func__ ifnam info if info info count break.. break info release ifs release return info autorelease Example output 2011 03 04 15 32 00.669 ShowSSID 4857 307 ShowSSIDAppDelegate fetchSSIDInfo Supported interfaces en0 2011 03 04 15 32 00.693 ShowSSID 4857 307 ShowSSIDAppDelegate fetchSSIDInfo en0 BSSID ca fe ca fe ca fe SSID XXXX SSIDDATA 01234567 01234567 01234567 Note that..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers class and related GUI view objects and I can easily use it in my own application assuming BookWarehouse and CheckoutController are generic interfaces i.e. protocols that I can implement @interface MyBookWarehouse NSObject BookWarehouse ... @end @implementation MyBookWarehouse ... @end @interface MyCheckoutController..
iPhone/iPad/OSX: How to get my IP address programmatically? http://stackoverflow.com/questions/7072989/iphone-ipad-osx-how-to-get-my-ip-address-programmatically question In your implementation file .m #import ifaddrs.h #import arpa inet.h Get IP Address NSString getIPAddress NSString address @ error struct ifaddrs interfaces NULL struct ifaddrs temp_addr NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked.. Get IP Address NSString getIPAddress NSString address @ error struct ifaddrs interfaces NULL struct ifaddrs temp_addr NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked list of interfaces temp_addr interfaces while temp_addr NULL if temp_addr ifa_addr.. @ error struct ifaddrs interfaces NULL struct ifaddrs temp_addr NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked list of interfaces temp_addr interfaces while temp_addr NULL if temp_addr ifa_addr sa_family AF_INET Check if interface is en0..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring sockaddr_in instead of sockaddr_dl . This crashes the application. iphone ios sockets share improve this question The thing is that pdp_ip0 is one of interfaces all pdpXXX are WWAN interfaces dedicated to different functions voicemail general networking interface. i read in apple forum that The OS does not keep network.. . This crashes the application. iphone ios sockets share improve this question The thing is that pdp_ip0 is one of interfaces all pdpXXX are WWAN interfaces dedicated to different functions voicemail general networking interface. i read in apple forum that The OS does not keep network statistics on a process by process.. addrs 0 if success cursor addrs while cursor NULL name NSString stringWithFormat @ s cursor ifa_name NSLog @ ifa_name s @ n cursor ifa_name name names of interfaces en0 is WiFi pdp_ip0 is WWAN if cursor ifa_addr sa_family AF_LINK if name hasPrefix @ en networkStatisc const struct if_data cursor ifa_data WiFiSent networkStatisc..
Declaration/definition of variables locations in ObjectiveC? http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec @implementation SampleClass 6 define ivars 7 define methods and synthesize properties from both public and private interfaces @end My understanding of 1 and 4 is that those are C style file based declarations and definitions that have no understanding.. and thus can be mostly ignored. Is that the case Regarding 5 why would I ever want to declare methods in private interfaces My private class methods seem to compile just fine without a declaration in the interface. Is it mostly for readability..
Get to UIViewController from UIView on iPhone? http://stackoverflow.com/questions/1340434/get-to-uiviewcontroller-from-uiview-on-iphone @property nonatomic assign MyViewDelegate delegate @end @interface MyViewController MyViewDelegate @end The view interfaces with its delegate as UITableView does for instance and it doesn't care if its implemented in the view controller or in any..
When to use CALayer on the Mac/iPhone? http://stackoverflow.com/questions/1447598/when-to-use-calayer-on-the-mac-iphone
iPhone proper usage of Application Delegate http://stackoverflow.com/questions/338734/iphone-proper-usage-of-application-delegate app delegate if they Were created from the same NIB file as the app delegate i.e. static UI elements in single window interfaces Are associated with application level event handling that passes through the app delegate like the menu item for the Preferences..
NSMutableString as retain/copy http://stackoverflow.com/questions/4995254/nsmutablestring-as-retain-copy rather than introducing a ton of threading complexities. in most cases you can remove the use of mutable strings from interfaces and build the strings when necessary as demonstrated above . collections NSMutableArray NSMutableDictionary NSMutableSet..
Is it good practice to use AppDelegate for data manipulation and Handling? http://stackoverflow.com/questions/5155437/is-it-good-practice-to-use-appdelegate-for-data-manipulation-and-handling of the app that need it. This last approach does however cause more 'interface pollution' where you have to modify interfaces in lots of places in order to pass in the DatabaseManager. And yet another alternative would be to effectively make your..
iPhone get SSID without private library http://stackoverflow.com/questions/5198716/iphone-get-ssid-without-private-library SystemConfiguration CaptiveNetwork.h id fetchSSIDInfo NSArray ifs id CNCopySupportedInterfaces NSLog @ s Supported interfaces @ __func__ ifs id info nil for NSString ifnam in ifs info id CNCopyCurrentNetworkInfo CFStringRef ifnam NSLog @ s @ @ __func__.. info autorelease Example output 2011 03 04 15 32 00.669 ShowSSID 4857 307 ShowSSIDAppDelegate fetchSSIDInfo Supported interfaces en0 2011 03 04 15 32 00.693 ShowSSID 4857 307 ShowSSIDAppDelegate fetchSSIDInfo en0 BSSID ca fe ca fe ca fe SSID XXXX SSIDDATA..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers view objects and I can easily use it in my own application assuming BookWarehouse and CheckoutController are generic interfaces i.e. protocols that I can implement @interface MyBookWarehouse NSObject BookWarehouse ... @end @implementation MyBookWarehouse..
iPhone/iPad/OSX: How to get my IP address programmatically? http://stackoverflow.com/questions/7072989/iphone-ipad-osx-how-to-get-my-ip-address-programmatically .m #import ifaddrs.h #import arpa inet.h Get IP Address NSString getIPAddress NSString address @ error struct ifaddrs interfaces NULL struct ifaddrs temp_addr NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs.. address @ error struct ifaddrs interfaces NULL struct ifaddrs temp_addr NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked list of interfaces temp_addr interfaces.. struct ifaddrs temp_addr NULL int success 0 retrieve the current interfaces returns 0 on success success getifaddrs interfaces if success 0 Loop through linked list of interfaces temp_addr interfaces while temp_addr NULL if temp_addr ifa_addr sa_family..
iPhone Data Usage Tracking/Monitoring http://stackoverflow.com/questions/7946699/iphone-data-usage-tracking-monitoring This crashes the application. iphone ios sockets share improve this question The thing is that pdp_ip0 is one of interfaces all pdpXXX are WWAN interfaces dedicated to different functions voicemail general networking interface. i read in apple.. iphone ios sockets share improve this question The thing is that pdp_ip0 is one of interfaces all pdpXXX are WWAN interfaces dedicated to different functions voicemail general networking interface. i read in apple forum that The OS does not keep.. cursor NULL name NSString stringWithFormat @ s cursor ifa_name NSLog @ ifa_name s @ n cursor ifa_name name names of interfaces en0 is WiFi pdp_ip0 is WWAN if cursor ifa_addr sa_family AF_LINK if name hasPrefix @ en networkStatisc const struct..
Capturing mobile phone traffic on wireshark http://stackoverflow.com/questions/9555403/capturing-mobile-phone-traffic-on-wireshark name for the capture and this varies from one device to another eg i eth0 or i tiwlan0 or use i any to log all interfaces For IOS 5 devices any network iOS 5 added a remote virtual interface RVI facility that lets you use Mac OS X packet trace..
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