Xamarin Form slider customisation for changing the thickness of slider bar in iOS

Question

Want to customise the ios slider to increase the thickness of slider bar. i tried using scaling but it is scaling the whole slider including the thumbimage and text above slider.

Answer 1

There are two ways to implement this.

1. MessagingCenter

2. Create delegate for the custom slider and trigger it in CustomRenderer.

   Code:

   MySlider

   public class MySlider : Slider
   {
       public delegate void SlideEventHandler(double newValue);
       public SlideEventHandler SlideEvent;
   }
   

   Page

   public Page1 ()
   {
       InitializeComponent ();
       slider.SlideEvent += slideChange;
   }
   void slideChange(double newValue) {
       Debug.WriteLine(newValue);
   }
   

   MySliderRenderer

   protected override void OnElementChanged(ElementChangedEventArgs<Slider> e)
   {
       MySlideriOS slider = new MySlideriOS();
       slider.ValueChanged += Slider_ValueChanged;
       SetNativeControl(slider);
   
       base.OnElementChanged(e);
   }
   
   private void Slider_ValueChanged(object sender, EventArgs e)
   {
       MySlideriOS slider = sender as MySlideriOS;
       (Element as MySlider).SlideEvent(slider.Value);
   }