Question

I am getting Device token in NSData and converting it to NSString. It is printing device token correctly

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)devToken {


    deviceToken = [[devToken description] stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"<>"]];



    deviceToken = [deviceToken stringByReplacingOccurrencesOfString:@" " withString:@""];


    NSLog(@"Device Token from NSdata is %@",deviceToken);


 }

And I am passing this from other class

self.Token = [AppDelegate_iPhone sharedAppDelegate].deviceToken;

but it is crashing on this line

 NSLog(@"Device Token from NSdata is %@",deviceToken);

*** -[CFString respondsToSelector:]: message sent to deallocated instance 0x1f9d00

Answer 1

You’re just assigning the value to deviceToken. You need to retain the value otherwise it will be released right after.

deviceToken = [[deviceToken stringByReplacingOccurrencesOfString:@" " withString:@""] retain];