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Xamarin Slider Up/Down events
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using System; | |
using System.Collections.Generic; | |
using System.Linq; | |
using System.Text; | |
using System.Threading.Tasks; | |
using Xamarin.Forms; | |
namespace NativeApp | |
{ | |
public class ExtendedSlider : Slider | |
{ | |
public event EventHandler TouchDown; | |
public event EventHandler TouchUpInside; | |
public event EventHandler TouchUpOutside; | |
public void OnTouchDown(EventArgs e) | |
{ | |
TouchDown?.Invoke(this, e); | |
} | |
public void OnTouchUpInside(EventArgs e) | |
{ | |
TouchUpInside?.Invoke(this, e); | |
} | |
public void OnTouchUpOutside(EventArgs e) | |
{ | |
TouchUpOutside?.Invoke(this, e); | |
} | |
} | |
} |
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using System; | |
using System.Collections.Generic; | |
using System.Linq; | |
using System.Text; | |
using Android.App; | |
using Android.Content; | |
using Android.OS; | |
using Android.Runtime; | |
using Android.Views; | |
using Android.Widget; | |
using NativeApp; | |
using NativeApp.Droid; | |
using Xamarin.Forms; | |
using Xamarin.Forms.Platform.Android; | |
[assembly: ExportRenderer(typeof(ExtendedSlider), typeof(ExtendedSliderRenderer))] | |
namespace NativeApp.Droid | |
{ | |
public class ExtendedSliderRenderer : SliderRenderer | |
{ | |
protected override void OnElementChanged(ElementChangedEventArgs<Slider> e) | |
{ | |
base.OnElementChanged(e); | |
if (Control != null) | |
{ | |
Control.Touch += Control_Touch; | |
} | |
} | |
private void Control_Touch(object sender, TouchEventArgs e) | |
{ | |
var slider = Element as ExtendedSlider; | |
if (e.Event.Action == MotionEventActions.Up) | |
{ | |
slider.OnTouchUpInside(e); | |
} | |
else if (e.Event.Action == MotionEventActions.Outside) | |
{ | |
// Doesn't seem to fire | |
slider.OnTouchUpOutside(e); | |
} | |
else if (e.Event.Action == MotionEventActions.Down) | |
{ | |
slider.OnTouchDown(e); | |
} | |
e.Handled = false; | |
} | |
} | |
} |
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using NativeApp; | |
using NativeApp.iOS; | |
using System; | |
using System.Collections.Generic; | |
using System.Text; | |
using Xamarin.Forms; | |
using Xamarin.Forms.Platform.iOS; | |
[assembly: ExportRenderer(typeof(ExtendedSlider), typeof(ExtendedSliderRenderer))] | |
namespace NativeApp.iOS | |
{ | |
public class ExtendedSliderRenderer : SliderRenderer | |
{ | |
protected override void OnElementChanged(ElementChangedEventArgs<Slider> e) | |
{ | |
base.OnElementChanged(e); | |
if (Control != null) | |
{ | |
Control.TouchDown += Control_TouchDown; | |
Control.TouchUpInside += Control_TouchUpInside; | |
Control.TouchUpOutside += Control_TouchUpOutside; | |
} | |
} | |
private void Control_TouchDown(object sender, EventArgs e) | |
{ | |
var slider = Element as ExtendedSlider; | |
slider.OnTouchDown(e); | |
} | |
private void Control_TouchUpInside(object sender, EventArgs e) | |
{ | |
var slider = Element as ExtendedSlider; | |
slider.OnTouchUpInside(e); | |
} | |
private void Control_TouchUpOutside(object sender, EventArgs e) | |
{ | |
var slider = Element as ExtendedSlider; | |
slider.OnTouchUpOutside(e); | |
} | |
} | |
} |
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