Slider 및 TextField 및 OnOff 스위치 연습

AppDelegate.h

#import <UIKit/UIKit.h>

@class ViewController;

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@property (strong, nonatomic) ViewController *viewController;

@end

AppDelegate.m

#import "AppDelegate.h"

#import "ViewController.h"

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    // Override point for customization after application launch.

    self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];

    self.window.rootViewController = self.viewController;

    [self.window makeKeyAndVisible];

    return YES;

}

ViewController.h

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController <UITextFieldDelegate>

{

    IBOutlet UILabel *label;

    IBOutlet UISlider *redSlider;

    IBOutlet UISlider *blueSlider;

    IBOutlet UISlider *greenSlider;

    IBOutlet UITextField *userInputField;

    IBOutlet UIView *colorView;

    UIActivityIndicatorView *activityIndicator;

}

- (IBAction)onColorSliderChanged:(id)sender;

- (IBAction)powerOnOff:(id)sender;

@end

ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

    activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

    activityIndicator.center = self.view.center;

    [self.view addSubview:activityIndicator];

    [activityIndicator stopAnimating];

    

//    [redSlider setThumbImage:[UIImage imageNamed:@"red.png"] forState:UIControlStateNormal];

//    [greenSlider setThumbImage:[UIImage imageNamed:@"green.png"] forState:UIControlStateNormal];

//    [blueSlider setThumbImage:[UIImage imageNamed:@"blue.png"] forState:UIControlStateNormal];

    

    [self onColorSliderChanged:nil];

}

- (IBAction)onColorSliderChanged:(id)sender

{

    if([activityIndicator isAnimating])

    {

        [activityIndicator stopAnimating];

    }

    colorView.backgroundColor = [UIColor colorWithRed:(float)redSlider.value/255.0f green:(float)greenSlider.value/255.0f blue:(float)blueSlider.value/255.0f alpha:1.0];

    

}

- (IBAction)powerOnOff:(id)sender

{

    BOOL isOn = ((UISwitch *)sender).on;

    redSlider.enabled = isOn;

    greenSlider.enabled = isOn;

    blueSlider.enabled = isOn;

    

    if(isOn)

    {

        [activityIndicator startAnimating];

        [self performSelector:@selector(onColorSliderChanged:) withObject:nil afterDelay:1.0];

    }

    else

    {

        colorView.backgroundColor = [UIColor grayColor];

    }

}

- (BOOL)textFieldShouldReturn:(UITextField *)textField

{

    label.text = userInputField.text;

    [userInputField resignFirstResponder];

    return YES;

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end

TextSliderTest.zip

슬라이더 바를 이용해서 레벨 색상 조정 및 텍스트 필드에서 입력받은 내용 레벨에 보여주기.

온오프 스위치로 활성, 비활성 선택