UIStepper

 1 #import "AppDelegate.h"

 2 

 3 @interface AppDelegate ()  4 

 5 @end

 6 

 7 @implementation AppDelegate  8 

 9 

10 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 11     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 12     // Override point for customization after application launch.

13     self.window.backgroundColor = [UIColor whiteColor]; 14     

15     UIStepper *stepper = [[UIStepper alloc] initWithFrame:CGRectMake(100, 100, 100, 100)]; 16     stepper.minimumValue = 0; 17     stepper.maximumValue = 100; 18     stepper.value = 50; 19  [stepper addTarget:self action:@selector(valueChanged:) forControlEvents:UIControlEventValueChanged]; 20     

21  [self.window addSubview:stepper]; 22  [self.window makeKeyAndVisible]; 23     return YES; 24 } 25 

26 - (void)valueChanged:(UIStepper *)sender 27 { 28     NSLog(@"Value = %.0f",sender.value); 29 } 30 

31 

32 @end