iOS开发技巧-使用UISlider来调整值的范围
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self.slider = [[UISlider alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 200.0f, 23.0f)];
self.slider.center = self.view.center; self.slider.minimumValue = 0.0f; self.slider.maximumValue = 100.0f; self.slider.value = self.slider.maximumValue / 2.0;
// customize slider and highlighted with own image [self.slider setThumbImage:[UIImage imageNamed:@"ThumbNormal.png"]
forState:UIControlStateNormal]; [self.slider setThumbImage:[UIImage imageNamed:@"ThumbHighlighted.png"]
@interface ViewController )
@property (nonatomic, strong) UISlider *slider;
@end
@implementation ViewController
- (void)viewDidLoad { [super viewDidLoad];
请求出错错误代码400请尝试刷新页面重试
iOS开发技巧 -使用 UISlider来调整值的范围
(Swift)
import UIKit
class ViewController: UIViewController { var slider: UISlider!
func sliderValueChanged(slider: UISlider) { println("Slider's new value is \(slider.value)")
}
override func viewDidLoad() { super.viewDidLoad()
slider = UISlider(frame: CGRect(x: 0, y: 0, width: 200, height: 23)) slider.center = view.center slider.minimumValue = 0 slider.maximumValue = 100 slider.value = slider.maximumValue / 2.0
// customize slider and highlighted with own image slider.setThumbImage(UIImage(named: "ThumbNormal"), forState: .Normal) slider.setThumbImage(UIImage(named: "ThumbHighlighted"), forState: .Highlighted)
forState:UIControlStateHighlighted];
[self.view addSubview:self.slider];
[self.slider addTarget:self action:@selector(sliderValueChanged:) forControlEvents:UIControlEventValueChanged];
slider.addTarget(self, action: "sliderValueChanged:", forControlEvents: .ValueChanged)
view.addSubview(slider) } }
(Objective-C)
#import "ViewController.h"
}
self.slider.center = self.view.center; self.slider.minimumValue = 0.0f; self.slider.maximumValue = 100.0f; self.slider.value = self.slider.maximumValue / 2.0;
// customize slider and highlighted with own image [self.slider setThumbImage:[UIImage imageNamed:@"ThumbNormal.png"]
forState:UIControlStateNormal]; [self.slider setThumbImage:[UIImage imageNamed:@"ThumbHighlighted.png"]
@interface ViewController )
@property (nonatomic, strong) UISlider *slider;
@end
@implementation ViewController
- (void)viewDidLoad { [super viewDidLoad];
请求出错错误代码400请尝试刷新页面重试
iOS开发技巧 -使用 UISlider来调整值的范围
(Swift)
import UIKit
class ViewController: UIViewController { var slider: UISlider!
func sliderValueChanged(slider: UISlider) { println("Slider's new value is \(slider.value)")
}
override func viewDidLoad() { super.viewDidLoad()
slider = UISlider(frame: CGRect(x: 0, y: 0, width: 200, height: 23)) slider.center = view.center slider.minimumValue = 0 slider.maximumValue = 100 slider.value = slider.maximumValue / 2.0
// customize slider and highlighted with own image slider.setThumbImage(UIImage(named: "ThumbNormal"), forState: .Normal) slider.setThumbImage(UIImage(named: "ThumbHighlighted"), forState: .Highlighted)
forState:UIControlStateHighlighted];
[self.view addSubview:self.slider];
[self.slider addTarget:self action:@selector(sliderValueChanged:) forControlEvents:UIControlEventValueChanged];
slider.addTarget(self, action: "sliderValueChanged:", forControlEvents: .ValueChanged)
view.addSubview(slider) } }
(Objective-C)
#import "ViewController.h"
}