使用UISliders值更改UILabels文本

Question

嘿伙计们,我想知道如何将UISliders值显示为UILabels文本.谢谢

Answer 1

向滑块添加动作,如下所示:

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

凡sliderChanged:方法看起来是这样的:

- (void)sliderChanged:(UISlider *)slider {
    self.label.text = [NSString stringWithFormat:@"%g", slider.value];
}

Answer 2

试试这个:

- (IBAction) sliderValueChanged:(UISlider *)sender {  
    label.text = [NSString stringWithFormat:@"%f", slider.value];
}  

如果label和/或slider是IB元素,请定义IBOutlets并连接它们.

然后将滑块sliderChanged操作连接到此方法.

祝好运!