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@aloisdeniel
Last active October 11, 2022 19:10
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Xamarin.iOS view common animations
public static void Fade (this UIView view, bool isIn, double duration = 0.3, Action onFinished = null)
{
var minAlpha = (nfloat)0.0f;
var maxAlpha = (nfloat)1.0f;
view.Alpha = isIn ? minAlpha : maxAlpha;
view.Transform = CGAffineTransform.MakeIdentity ();
UIView.Animate (duration, 0, UIViewAnimationOptions.CurveEaseInOut,
() => {
view.Alpha = isIn ? maxAlpha : minAlpha;
},
onFinished
);
}
public static void FlipHorizontaly (this UIView view, bool isIn, double duration = 0.3, Action onFinished = null)
{
var m34 = (nfloat)(-1 * 0.001);
var minAlpha = (nfloat)0.0f;
var maxAlpha = (nfloat)1.0f;
view.Alpha = (nfloat)1.0;
var minTransform = CATransform3D.Identity;
minTransform.m34 = m34;
minTransform = minTransform.Rotate ((nfloat)((isIn ? 1 : -1) * Math.PI * 0.5), (nfloat)0.0f, (nfloat)1.0f, (nfloat)0.0f);
var maxTransform = CATransform3D.Identity;
maxTransform.m34 = m34;
view.Alpha = isIn ? minAlpha : maxAlpha;
view.Layer.Transform = isIn ? minTransform : maxTransform;
UIView.Animate (duration, 0, UIViewAnimationOptions.CurveEaseInOut,
() => {
view.Layer.AnchorPoint = new CGPoint ((nfloat)0.5, (nfloat)0.5f);
view.Layer.Transform = isIn ? maxTransform : minTransform;
view.Alpha = isIn ? maxAlpha : minAlpha;
},
onFinished
);
}
public static void FlipVerticaly (this UIView view, bool isIn, double duration = 0.3, Action onFinished = null)
{
var m34 = (nfloat)(-1 * 0.001);
var minAlpha = (nfloat)0.0f;
var maxAlpha = (nfloat)1.0f;
var minTransform = CATransform3D.Identity;
minTransform.m34 = m34;
minTransform = minTransform.Rotate ((nfloat)((isIn ? 1 : -1) * Math.PI * 0.5), (nfloat)1.0f, (nfloat)0.0f, (nfloat)0.0f);
var maxTransform = CATransform3D.Identity;
maxTransform.m34 = m34;
view.Alpha = isIn ? minAlpha : maxAlpha;
view.Layer.Transform = isIn ? minTransform : maxTransform;
UIView.Animate (duration, 0, UIViewAnimationOptions.CurveEaseInOut,
() => {
view.Layer.AnchorPoint = new CGPoint ((nfloat)0.5, (nfloat)0.5f);
view.Layer.Transform = isIn ? maxTransform : minTransform;
view.Alpha = isIn ? maxAlpha : minAlpha;
},
onFinished
);
}
public static void Rotate (this UIView view, bool isIn, bool fromLeft = true, double duration = 0.3, Action onFinished = null)
{
var minAlpha = (nfloat)0.0f;
var maxAlpha = (nfloat)1.0f;
var minTransform = CGAffineTransform.MakeRotation ((nfloat)((fromLeft ? -1 : 1) * 720));
var maxTransform = CGAffineTransform.MakeRotation ((nfloat)0.0);
view.Alpha = isIn ? minAlpha : maxAlpha;
view.Transform = isIn ? minTransform : maxTransform;
UIView.Animate (duration, 0, UIViewAnimationOptions.CurveEaseInOut,
() => {
view.Alpha = isIn ? maxAlpha : minAlpha;
view.Transform = isIn ? maxTransform : minTransform;
},
onFinished
);
}
public static void Scale (this UIView view, bool isIn, double duration = 0.3, Action onFinished = null)
{
var minAlpha = (nfloat)0.0f;
var maxAlpha = (nfloat)1.0f;
var minTransform = CGAffineTransform.MakeScale ((nfloat)0.1, (nfloat)0.1);
var maxTransform = CGAffineTransform.MakeScale ((nfloat)1, (nfloat)1);
view.Alpha = isIn ? minAlpha : maxAlpha;
view.Transform = isIn ? minTransform : maxTransform;
UIView.Animate (duration, 0, UIViewAnimationOptions.CurveEaseInOut,
() => {
view.Alpha = isIn ? maxAlpha : minAlpha;
view.Transform = isIn ? maxTransform : minTransform;
},
onFinished
);
}
public static void SlideHorizontaly (this UIView view, bool isIn, bool fromLeft, double duration = 0.3, Action onFinished = null)
{
var minAlpha = (nfloat)0.0f;
var maxAlpha = (nfloat)1.0f;
var minTransform = CGAffineTransform.MakeTranslation ((fromLeft ? -1 : 1) * view.Bounds.Width, 0);
var maxTransform = CGAffineTransform.MakeIdentity ();
view.Alpha = isIn ? minAlpha : maxAlpha;
view.Transform = isIn ? minTransform : maxTransform;
UIView.Animate (duration, 0, UIViewAnimationOptions.CurveEaseInOut,
() => {
view.Alpha = isIn ? maxAlpha : minAlpha;
view.Transform = isIn ? maxTransform : minTransform;
},
onFinished
);
}
public static void SlideVerticaly (this UIView view, bool isIn, bool fromTop, double duration = 0.3, Action onFinished = null)
{
var minAlpha = (nfloat)0.0f;
var maxAlpha = (nfloat)1.0f;
var minTransform = CGAffineTransform.MakeTranslation (0, (fromTop ? -1 : 1) * view.Bounds.Height);
var maxTransform = CGAffineTransform.MakeIdentity ();
view.Alpha = isIn ? minAlpha : maxAlpha;
view.Transform = isIn ? minTransform : maxTransform;
UIView.Animate (duration, 0, UIViewAnimationOptions.CurveEaseInOut,
() => {
view.Alpha = isIn ? maxAlpha : minAlpha;
view.Transform = isIn ? maxTransform : minTransform;
},
onFinished
);
}
public static void Zoom (this UIView view, bool isIn, double duration = 0.3, Action onFinished = null)
{
var minAlpha = (nfloat)0.0f;
var maxAlpha = (nfloat)1.0f;
var minTransform = CGAffineTransform.MakeScale ((nfloat)2.0, (nfloat)2.0);
var maxTransform = CGAffineTransform.MakeScale ((nfloat)1, (nfloat)1);
view.Alpha = isIn ? minAlpha : maxAlpha;
view.Transform = isIn ? minTransform : maxTransform;
UIView.Animate (duration, 0, UIViewAnimationOptions.CurveEaseInOut,
() => {
view.Alpha = isIn ? maxAlpha : minAlpha;
view.Transform = isIn ? maxTransform : minTransform;
},
onFinished
);
}
//Some examples from below animation gists
this.view = new UIView (new CGRect (50, 50, 70, 100));
this.view.BackgroundColor = UIColor.Red;
this.View.AddSubview (this.view);
this.animations = new Dictionary<string, Action> () {
{ "FadeIn", () => view.Fade (true) },
{ "FadeOut", () => view.Fade (false) },
{ "RotateIn", () => view.Rotate (true) },
{ "RotateOut", () => view.Rotate (false) },
{ "FlipInVerticaly", () => view.FlipVerticaly (true) },
{ "FlipOutVerticaly", () => view.FlipVerticaly (false) },
{ "FlipInHorizontaly", () => view.FlipHorizontaly (true) },
{ "FlipOutHorizontaly", () => view.FlipHorizontaly (false) },
{ "SlideInFromTop", () => view.SlideVerticaly (true, true) },
{ "SlideInFromBottom", () => view.SlideVerticaly (true, false) },
{ "SlideInFromLeft", () => view.SlideHorizontaly (true, true) },
{ "SlideInFromRight", () => view.SlideHorizontaly (true, false) },
{ "SlideOutFromTop", () => view.SlideVerticaly (false, true) },
{ "SlideOutFromBottom", () => view.SlideVerticaly (false, false) },
{ "SlideOutFromLeft", () => view.SlideHorizontaly (false, true) },
{ "SlideOutFromRight", () => view.SlideHorizontaly (false, false) },
{ "ZoomIn", () => view.Zoom (true) },
{ "ZoomOut", () => view.Zoom (false) },
{ "ScaleIn", () => view.Scale (true) },
{ "ScaleOut", () => view.Scale (false) },
};
@sharmilasonavane24
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Excellent!

@Abino5
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Abino5 commented Aug 17, 2018

How to use/activate?

@eman1986
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Thank you for sharing this

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