我尝试在单击按钮后为滑块设置一个值,但它不起作用 - 滑块不移动。代码运行良好,没有错误。
它应该很简单,但我无法弄清楚。xCode 版本 4.5.2
谢谢!
这是我的代码:
视图控制器.h
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
@property (weak, nonatomic) IBOutlet UILabel *debugLabel;
@property (weak, nonatomic) IBOutlet UISlider *slider;
- (IBAction)slider:(id)sender;
- (IBAction)ButtonChangeValue:(id)sender;
@end
视图控制器.m
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
@synthesize slider;
...
- (IBAction)slider:(UISlider *)sender {
float value = [sender value];
self.debugLabel.text = [NSString stringWithFormat:@"Value: %f",value];
}
- (IBAction)ButtonChangeValue:(id)sender {
slider.value = 90;
}