copied the reachability-test from apple, but the linker gives a failure
- by nico
i have tried to use the reachability-project published by apple to detect a reachability in an own example. i copied the most initialization, but i get this failure in the linker:
Ld
build/switchViews.build/Debug-iphoneos/test.build/Objects-normal/armv6/test
normal armv6 cd
/Users/uid04100/Documents/TEST setenv
IPHONEOS_DEPLOYMENT_TARGET 3.1.3
setenv PATH
"/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2
-arch armv6 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.3.sdk
-L/Users/uid04100/Documents/TEST/build/Debug-iphoneos
-F/Users/uid04100/Documents/TEST/build/Debug-iphoneos
-filelist /Users/uid04100/Documents/TEST/build/switchViews.build/Debug-iphoneos/test.build/Objects-normal/armv6/test.LinkFileList
-dead_strip -miphoneos-version-min=3.1.3 -framework Foundation -framework UIKit -framework CoreGraphics -o /Users/uid04100/Documents/TEST/build/switchViews.build/Debug-iphoneos/test.build/Objects-normal/armv6/test
Undefined symbols:
"_SCNetworkReachabilitySetCallback",
referenced from:
-[Reachability startNotifer] in Reachability.o
"_SCNetworkReachabilityCreateWithAddress",
referenced from:
+[Reachability reachabilityWithAddress:] in
Reachability.o
"_SCNetworkReachabilityScheduleWithRunLoop",
referenced from:
-[Reachability startNotifer] in Reachability.o
"_SCNetworkReachabilityGetFlags",
referenced from:
-[Reachability connectionRequired] in Reachability.o
-[Reachability currentReachabilityStatus] in
Reachability.o
"_SCNetworkReachabilityUnscheduleFromRunLoop",
referenced from:
-[Reachability stopNotifer] in Reachability.o
"_SCNetworkReachabilityCreateWithName", referenced from:
+[Reachability reachabilityWithHostName:] in
Reachability.o ld: symbol(s) not found
collect2: ld returned 1 exit status
my delegate.h:
import
@class Reachability;
@interface testAppDelegate : NSObject
{ UIWindow
*window; UINavigationController *navigationController;
Reachability* hostReach;
Reachability* internetReach;
Reachability* wifiReach;
}
@property (nonatomic, retain) IBOutlet
UIWindow *window; @property
(nonatomic, retain) IBOutlet
UINavigationController
*navigationController;
@end
my delegate.m:
import "testAppDelegate.h"
import "SecondViewController.h"
import "Reachability.h"
@implementation testAppDelegate
@synthesize window; @synthesize
navigationController;
(void) updateInterfaceWithReachability:
(Reachability*) curReach {
if(curReach == hostReach) {
BOOL connectionRequired= [curReach connectionRequired];
if(connectionRequired)
{ //in these brackets schould be some code with sense, if i´m getting it to run
}
else
{
}
} if(curReach == internetReach) { } if(curReach == wifiReach) {
} }
//Called by Reachability whenever
status changes.
- (void) reachabilityChanged: (NSNotification* )note {
Reachability* curReach = [note
object]; NSParameterAssert([curReach
isKindOfClass: [Reachability class]]);
[self
updateInterfaceWithReachability:
curReach]; }
(void)applicationDidFinishLaunching:(UIApplication
*)application {
// Override point for customization after application launch
// Observe the
kNetworkReachabilityChangedNotification.
When that notification is posted, the
// method "reachabilityChanged" will be called. //
[[NSNotificationCenter defaultCenter]
addObserver: self selector:
@selector(reachabilityChanged:) name:
kReachabilityChangedNotification
object: nil];
//Change the host name here to change the server your monitoring
hostReach = [[Reachability
reachabilityWithHostName:
@"www.apple.com"] retain]; [hostReach
startNotifer]; [self
updateInterfaceWithReachability:
hostReach];
internetReach = [[Reachability reachabilityForInternetConnection]
retain]; [internetReach
startNotifer]; [self
updateInterfaceWithReachability:
internetReach];
wifiReach = [[Reachability reachabilityForLocalWiFi] retain];
[wifiReach startNotifer]; [self
updateInterfaceWithReachability:wifiReach];
[window addSubview:[navigationController
view]];
[window makeKeyAndVisible]; }
(void)dealloc { [navigationController release];
[window release];
[super dealloc]; }
@end
