Shake detection works in iOS5 but not in iOS4

[iph_s]

I can't figure out why that code works fine in iOS5 simulator but not in iOS4

- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    if(motion == UIEventSubtypeMotionShake)
    {
        NSLog(@"Shakde detected");
    }
}

- (void)applicationDidFinishLaunching:(UIApplication *)application {
    
    application.applicationSupportsShakeToEdit = YES;
    
}


-(BOOL)canBecomeFirstResponder {
    return YES;
}

-(void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    [self becomeFirstResponder];
}

- (void)viewWillDisappear:(BOOL)animated {
    [self resignFirstResponder];
    [super viewWillDisappear:animated];
}

[Duncan C]

Originally Posted by iph_s

I can't figure out why that code works fine in iOS5 simulator but not in iOS4

- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    if(motion == UIEventSubtypeMotionShake)
    {
        NSLog(@"Shakde detected");
    }
}

- (void)applicationDidFinishLaunching:(UIApplication *)application {
    
    application.applicationSupportsShakeToEdit = YES;
    
}


-(BOOL)canBecomeFirstResponder {
    return YES;
}

-(void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    [self becomeFirstResponder];
}

- (void)viewWillDisappear:(BOOL)animated {
    [self resignFirstResponder];
    [super viewWillDisappear:animated];
}

First of all, you should test hardware specific things like shake detection on a device, not on the sim.

The code you posted is confusing. You show a mixture of methods the belong in the app delegate and in your view controllers. Which code goes where?

Methods that belong in the app delegate, like applicationDidFinishLaunching, won't work in a view controller, and methods like canBecomeFirstResponder, viewWillAppear, and motionBegan belong in a view controller, and won't work in the app delegate.

Break out your code to show which methods go where.