如何使用IOS 6以设定的持续时间以编程方式移动滑块？

I have an iPhone application with a UISlider. When my user presses the play button, I want my slider to move from a value of 1, slowly, to a value of 100. The slider slides for the duration of the recording that gets played back when my user presses the play button.I have an iPhone application with a UISlider. W