#import <UIKit/UIKit.h>
@interface HelloWorldViewController : UIViewController {
IBOutlet UILabel *label_hello;
IBOutlet UIButton *button_iphone;
IBOutlet UIButton *button_ipad;
IBOutlet UIButton *button_ipodtouch;
IBOutlet UIImageView *image_bird;
IBOutlet UISlider *slider_alpha; // 슬라이더 아웃렛 등록
}
- (IBAction) button1Touched;
- (IBAction) button2Touched;
- (IBAction) button3Touched;
- (IBAction) sliderChanged; // 슬라이더 이벤트 등록
@property (nonatomic, retain) IBOutlet UILabel *label_hello;
@property (nonatomic, retain) IBOutlet UIButton *button_iphone;
@property (nonatomic, retain) IBOutlet UIButton *button_ipad;
@property (nonatomic, retain) IBOutlet UIButton *button_ipodtouch;
@property (nonatomic, retain) IBOutlet UIImageView *image_bird;
@property (nonatomic, retain) IBOutlet UISlider *slider_alpha; // 슬라이더 프로퍼티 등록
@end
#import "HelloWorldViewController.h"
@implementation HelloWorldViewController
@synthesize label_hello;
@synthesize button_iphone;
@synthesize button_ipad;
@synthesize button_ipodtouch;
@synthesize image_bird;
@synthesize slider_alpha; // 슬라이더 통합 등록
- (IBAction) button1Touched{
self.label_hello.text = @"Hello iPhone";
}
- (IBAction) button2Touched{
self.label_hello.text = @"Hello iPad";
}
- (IBAction) button3Touched{
self.label_hello.text = @"Hello iPod Touch";
}
-(IBAction) sliderChanged{ // 슬라이더 이벤트 구현
image_bird.alpha = slider_alpha.value;
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
for(UITouch *touch in touches)
{
if(CGRectContainsPoint([image_bird frame],[touch locationInView:self.view]))
{
image_bird.center = [touch locationInView:self.view];
}
}
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[label_hello release];
[button_iphone release];
[button_ipad release];
[button_ipodtouch release];
[image_bird release];
[super dealloc];
}
@end
2. HelloWorldViewController.xib에 슬라이더 추가
UISlider
Values : 최소값, 최대값 및 기본값 설정
3. Outlet 및 Action 연결
Action : Value Changed