/// <summary>
/// Register touch event callback for the Tap, the Long Tap and the Line behavior.
/// </summary>
/// <param name="args"> A Image element changed event's argument </param>
protected override void OnElementChanged(ElementChangedEventArgs <Xamarin.Forms.Image> args)
{
base.OnElementChanged(args);
if (Control == null || Element == null)
{
return;
}
if (GestureRecognizer == null)
{
GestureRecognizer = new ElmSharp.GestureLayer(Control);
GestureRecognizer.Attach(Control);
}
if (args.NewElement == null)
{
GestureRecognizer.ClearCallbacks();
return;
}
Control.Color = RegularColor;
GestureRecognizer.SetTapCallback(GestureLayer.GestureType.Tap, GestureLayer.GestureState.Start, x => KeyDown());
GestureRecognizer.SetTapCallback(GestureLayer.GestureType.Tap, GestureLayer.GestureState.End, x => ExecuteTapCommand());
GestureRecognizer.SetTapCallback(GestureLayer.GestureType.LongTap, GestureLayer.GestureState.End, x => KeyUp());
GestureRecognizer.SetTapCallback(GestureLayer.GestureType.LongTap, GestureLayer.GestureState.Abort, x => KeyUp());
GestureRecognizer.SetLineCallback(GestureLayer.GestureState.Move, x => KeyUp());
}
/// <summary>
/// Making a button with a image and set the image's color and blending color by inputted background color.
/// Register touch event callback for the Tap, the Long Tap and the Line behaviour. </summary>
/// <remarks>
/// When the button is touched, This class should change the image for each touch down/up situation.
/// Even a button touching starts at the Tap touch down, but touch up will be happen in several situations such as the Tap, the Long Tap, the Line.
/// </remarks>
/// <param name="args"> A Image element changed event's argument </param>
protected override void OnElementChanged(ElementChangedEventArgs <Xamarin.Forms.Image> args)
{
base.OnElementChanged(args);
if (Control == null)
{
return;
}
if (GestureRecognizer == null)
{
GestureRecognizer = new ElmSharp.GestureLayer(Control);
GestureRecognizer.Attach(Control);
GestureRecognizer.LongTapTimeout = 0.001;
}
if (args.NewElement == null)
{
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.Tap, ElmSharp.GestureLayer.GestureState.Start, null);
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.Tap, ElmSharp.GestureLayer.GestureState.End, null);
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.LongTap, ElmSharp.GestureLayer.GestureState.End, null);
GestureRecognizer.SetLineCallback(ElmSharp.GestureLayer.GestureState.End, null);
return;
}
ElementButton BtnElement = args.NewElement as ElementButton;
if (BtnElement == null)
{
return;
}
Image imageControl = Control as Image;
imageControl.Color = BlendingColor;
imageControl.BackgroundColor = GetColor(BtnElement.BackgroundColor, 1f);
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.Tap, ElmSharp.GestureLayer.GestureState.Start, x =>
{
KeyDown();
});
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.Tap, ElmSharp.GestureLayer.GestureState.End, x =>
{
KeyUp();
});
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.LongTap, ElmSharp.GestureLayer.GestureState.End, x =>
{
KeyUp();
});
GestureRecognizer.SetLineCallback(GestureLayer.GestureState.End, x =>
{
KeyUp();
});
}
/// <summary>
/// Making a button with a image and set the image's color and blending color by inputted background color.
/// Register touch event callback for the Tap, the Long Tap and the Line behavior. </summary>
/// <remarks>
/// When the button is touched, This class should change the image for each touch down/up situation.
/// Even a button touching starts at the Tap touch down, but touch up will be happen in several situations such as the Tap, the Long Tap, the Line.
/// </remarks>
/// <param name="args"> A Image element changed event's argument </param>
protected override void OnElementChanged(ElementChangedEventArgs <Xamarin.Forms.Image> args)
{
base.OnElementChanged(args);
if (Control == null)
{
return;
}
if (GestureRecognizer == null)
{
GestureRecognizer = new ElmSharp.GestureLayer(Control);
GestureRecognizer.Attach(Control);
}
if (args.NewElement == null)
{
GestureRecognizer.ClearCallbacks();
return;
}
else
{
Control.Clicked += SendClicked;
}
ImageButton BtnElement = args.NewElement as ImageButton;
if (BtnElement == null)
{
return;
}
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.Tap, ElmSharp.GestureLayer.GestureState.Start, x =>
{
KeyDown();
});
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.Tap, ElmSharp.GestureLayer.GestureState.End, x =>
{
KeyUp();
});
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.LongTap, ElmSharp.GestureLayer.GestureState.End, x =>
{
KeyUp();
});
GestureRecognizer.SetTapCallback(ElmSharp.GestureLayer.GestureType.LongTap, ElmSharp.GestureLayer.GestureState.Abort, x =>
{
KeyUp();
});
}
