到UISlider分配方法以编程方式使用Objective-C的

Question

我添加UISlider查看程序是这样的：

UISlider * sideslider = [[UISlider alloc] initWithFrame:CGRectMake(canvasWidth +((canvasWidth) - (recwidth)/4) /b2, recheight - 70, (recwidth)/4, 20)]; 
[sideslider setMaximumValue:solution0->Plan->HDivisions.count]; 
// sideslider 
int slidervalue = sideslider.value; 
[self addSubview:sideslider]; 

我需要创建后此事件处理

-(IBAction)updateside:(UISlider *)sender; 

添加到这个滑盖的？

Answer 1

[slider addTarget:self action:@selector(updateside:) forControlEvents:UIControlEventValueChanged]; 

Answer 2

您需要分配：

[sideslider addTarget:self action:@selector(updateside:) forControlEvents:UIControlEventValueChanged]; 

找出发送者（sideslider）值：

-(IBAction)updateside:(id)sender 
{ 
    UISlider * slider = (UISlider*)sender; 
    NSLog(@"Slider Value: %.1f", [slider value]); 
}