UISlider - missing features - snap, tooltip and ticks

Question

So I am new to IOS dev and Xcode but far from being a newbie in UI components in many other technologies. I am implementing a UISlider and investigated its API but could not fin

Answer 1

The UISlider documentation provided by Apple will help you to figure out what is and is not built in to UIKit's UISlider.

Specifically take a look at the section titled Customizing the Slider’s Appearance, that about sums it up for out-of-the-box customization.

Unfortunately, none of the items you listed are part of UISlider, but subclassing and building out that functionality would not be an issue.

Answer 2

1 + 2) Yes, there is no built-in snap functionality, but you can implement it yourself easily. Just catch the value-changed events of the slider, and update its value to the desired value. The action method for rounding the slider values can update a label displaying the value, too.

2 + 3) You must implement that by yourself. These features are very use case specific. UIKit is rather than a set of small building blocks for general purposes.