Implementing UIApplicationDelegate protocol methods in NSObject class not working.

Question

Hi Everyone,
I am new bee in iphone developement. I want to implement UIApplicationDelegate protocol methods in one of my NSObject class, how can i implement that help me please.
I have mentioned the sample code what acutal i want to impelment.
.h file
@interface SmaplClass : NSObject <UIApplicationDelegate>
.m file
- (void)applicationWillResignActive:(UIApplication *)application
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
-(void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
- (void)application:(UIApplication*)application didFailToRegisterForRemoteNotificationsWithError:(NSError*)error
Want to implement the above methods is NSObject class to be implemented or used, its not working. Help me can do it.
Please help me
Thanks,

Answer 1

I complete the above discussion with saying that it is better to implement the notification handling methods in your app delegate. If there are good reasons to not to do so, you have to implement the methods in another class, instantiate the class, and call the methods from the actual UIApplicationDelegate protocol methods in the AppDelegate object. This way you can remove the actual notification handling code from AppDelegate class.
For example, suppose you implemented the methods in the class called Test. This is a sample code in the AppDelegate class:
@implementation AppDelegate
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
      Test *t = [[Test alloc] init];
     [t application: application didReceiveRemoteNotification: userInfo];
@end
Or you can create an association relationship between the AppDelegate and Test, so you do not have to create a new Test instance in each of the remote notification handling methods:
@interface AppDelegate {
     Test *test;
@end
@implementation AppDelegate
+ (id)init {
     if (self = [super init]) {
          test = [[Test alloc] init];
     return self;
- (void)dealloc {
     [test release];
     [super dealloc];
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
     // No need to create a Test instance. You just forward the call from AppDelegate instance to test      // instance
     [test application: application didReceiveRemoteNotification: userInfo];
@end