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muakmuak
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Merge pull request #58 from muak/development
Add Gradient
2 parents 8d133ec + 3a4ab52 commit b3a30a8

13 files changed

+783
-13
lines changed

‎AiForms.Effects.Droid/AiForms.Effects.Droid.csproj

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@@ -27,6 +27,7 @@
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<WarningLevel>4</WarningLevel>
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<AndroidLinkMode>None</AndroidLinkMode>
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<NoWarn></NoWarn>
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<LangVersion>8.0</LangVersion>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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<AndroidManagedSymbols>true</AndroidManagedSymbols>
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<AndroidUseSharedRuntime>false</AndroidUseSharedRuntime>
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<NoWarn>1591</NoWarn>
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<LangVersion>8.0</LangVersion>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Compile Include="PlatformUtility.cs" />
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<Compile Include="FloatingLayoutRenderer.cs" />
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<Compile Include="Initialize.cs" />
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<Compile Include="GradientPlatformEffect.cs" />
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</ItemGroup>
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<ItemGroup>
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<None Include="Resources\AboutResources.txt" />

‎AiForms.Effects.Droid/GradientPlatformEffect.cs

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using System;
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using System.ComponentModel;
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using System.Linq;
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using AiForms.Effects;
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using AiForms.Effects.Droid;
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using Android.Graphics.Drawables;
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using Xamarin.Forms;
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using Xamarin.Forms.Platform.Android;
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[assembly: ExportEffect(typeof(GradientPlatformEffect), nameof(Gradient))]
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namespace AiForms.Effects.Droid
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{
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public class GradientPlatformEffect:AiEffectBase
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{
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Android.Views.View _view;
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GradientDrawable _gradient;
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Drawable _orgDrawable;
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protected override void OnAttachedOverride()
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{
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_view = Container ?? Control;
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_gradient = new GradientDrawable();
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_orgDrawable = _view.Background;
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UpdateGradient();
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}
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protected override void OnDetachedOverride()
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{
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if(!IsDisposed)
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{
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_view.Background = _orgDrawable;
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_view.ClipToOutline = false;
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System.Diagnostics.Debug.WriteLine($"{this.GetType().FullName} Detached Disposing");
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}
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_gradient?.Dispose();
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_gradient = null;
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_view = null;
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System.Diagnostics.Debug.WriteLine($"{this.GetType().FullName} Detached completely");
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}
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protected override void OnElementPropertyChanged(PropertyChangedEventArgs args)
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{
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base.OnElementPropertyChanged(args);
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if (!IsSupportedByApi)
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return;
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if (IsDisposed)
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{
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return;
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}
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if (args.PropertyName == Gradient.ColorsProperty.PropertyName ||
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args.PropertyName == Gradient.OrientationProperty.PropertyName)
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{
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UpdateGradient();
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}
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}
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void UpdateGradient()
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{
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var colors = Gradient.GetColors(Element);
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if(colors == null)
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{
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return;
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}
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_gradient.SetColors(colors.Select(x => (int)x.ToAndroid()).ToArray());
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_gradient.SetOrientation(ConvertOrientation());
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_view.ClipToOutline = true; //not to overflow children
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_view.SetBackground(_gradient);
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}
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GradientDrawable.Orientation ConvertOrientation()
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{
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var orientation = Gradient.GetOrientation(Element);
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switch (orientation)
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{
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case GradientOrientation.LeftRight:
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return GradientDrawable.Orientation.LeftRight;
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case GradientOrientation.BlTr:
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return GradientDrawable.Orientation.BlTr;
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case GradientOrientation.BottomTop:
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return GradientDrawable.Orientation.BottomTop;
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case GradientOrientation.BrTl:
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return GradientDrawable.Orientation.BrTl;
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case GradientOrientation.RightLeft:
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return GradientDrawable.Orientation.RightLeft;
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case GradientOrientation.TrBl:
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return GradientDrawable.Orientation.TrBl;
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case GradientOrientation.TopBottom:
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return GradientDrawable.Orientation.TopBottom;
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case GradientOrientation.TlBr:
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return GradientDrawable.Orientation.TlBr;
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default:
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return GradientDrawable.Orientation.LeftRight;
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}
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}
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}
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}

‎AiForms.Effects.iOS/AiForms.Effects.iOS.csproj

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@@ -28,6 +28,7 @@
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<MtouchLink></MtouchLink>
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<MtouchHttpClientHandler></MtouchHttpClientHandler>
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<MtouchTlsProvider></MtouchTlsProvider>
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<LangVersion>8.0</LangVersion>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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<MtouchHttpClientHandler></MtouchHttpClientHandler>
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<MtouchTlsProvider></MtouchTlsProvider>
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<NoWarn>1591</NoWarn>
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<LangVersion>8.0</LangVersion>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Compile Include="FeedbackPlatformEffect.cs" />
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<Compile Include="FloatingPlatformEffect.cs" />
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<Compile Include="PlatformUtility.cs" />
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<Compile Include="GradientPlatformEffect.cs" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\AiForms.Effects\AiForms.Effects.csproj">

‎AiForms.Effects.iOS/GradientPlatformEffect.cs

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using System;
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using System.ComponentModel;
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using System.Linq;
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using AiForms.Effects;
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using AiForms.Effects.iOS;
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using CoreAnimation;
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using CoreGraphics;
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using UIKit;
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using Xamarin.Forms;
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using Xamarin.Forms.Platform.iOS;
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[assembly: ExportEffect(typeof(GradientPlatformEffect), nameof(Gradient))]
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namespace AiForms.Effects.iOS
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{
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public class GradientPlatformEffect:PlatformEffect
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{
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UIView _view;
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VisualElement _visualElement;
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CAGradientLayer _layer;
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bool _clipsToBounds;
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protected override void OnAttached()
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{
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_view = Control ?? Container;
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_visualElement = Element as VisualElement;
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if(_visualElement == null)
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{
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Device.BeginInvokeOnMainThread(() => Gradient.SetOn(Element, false));
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return;
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}
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if (Element is Label)
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{
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_view = Container;
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}
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_clipsToBounds = _view.ClipsToBounds;
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_visualElement.SizeChanged += OnSizeChanged;
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UpdateGradient();
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}
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protected override void OnDetached()
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{
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if(_visualElement != null)
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{
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_visualElement.SizeChanged -= OnSizeChanged;
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}
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if(_view != null)
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{
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_view.ClipsToBounds = _clipsToBounds;
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}
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_layer?.RemoveFromSuperLayer();
55+
_layer?.Dispose();
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_layer = null;
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_view = null;
59+
_visualElement = null;
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61+
System.Diagnostics.Debug.WriteLine($"Detached {GetType().Name} from {Element.GetType().FullName}");
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}
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protected override void OnElementPropertyChanged(PropertyChangedEventArgs args)
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{
66+
base.OnElementPropertyChanged(args);
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if(args.PropertyName == Gradient.ColorsProperty.PropertyName ||
68+
args.PropertyName == Gradient.OrientationProperty.PropertyName)
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{
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UpdateGradient();
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}
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}
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private void OnSizeChanged(object sender, EventArgs e)
75+
{
76+
UpdateGradient();
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}
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void UpdateGradient()
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{
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var colors = Gradient.GetColors(Element);
82+
if(colors == null)
83+
{
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return;
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}
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_layer?.RemoveFromSuperLayer();
88+
_layer?.Dispose();
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_layer = new CAGradientLayer();
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_layer.Frame = new CGRect(0, 0, _visualElement.Width, _visualElement.Height);
92+
_layer.Colors = colors.Select(x => x.ToCGColor()).ToArray();
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(_layer.StartPoint,_layer.EndPoint) = ConvertPoint();
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_view.Layer.InsertSublayer(_layer, 0);
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_view.ClipsToBounds = true;
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}
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(CGPoint start,CGPoint end) ConvertPoint()
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{
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var orientation = Gradient.GetOrientation(Element);
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switch(orientation)
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{
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case GradientOrientation.LeftRight:
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return (new CGPoint(0, 0.5), new CGPoint(1, 0.5));
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case GradientOrientation.BlTr:
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return (new CGPoint(0, 1.0), new CGPoint(1, 0));
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case GradientOrientation.BottomTop:
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return (new CGPoint(0.5, 1), new CGPoint(0.5, 0));
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case GradientOrientation.BrTl:
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return (new CGPoint(1, 1), new CGPoint(0, 0));
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case GradientOrientation.RightLeft:
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return (new CGPoint(1, 0.5), new CGPoint(0, 0.5));
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case GradientOrientation.TrBl:
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return (new CGPoint(1, 0), new CGPoint(0, 1));
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case GradientOrientation.TopBottom:
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return (new CGPoint(0.5, 0), new CGPoint(0.5, 1));
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case GradientOrientation.TlBr:
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return (new CGPoint(0, 0), new CGPoint(1, 1));
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default:
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return (new CGPoint(0, 0.5), new CGPoint(1, 0.5));
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}
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}
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}
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}

‎AiForms.Effects/AiForms.Effects.csproj

+5-1
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<PropertyGroup>
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<TargetFramework>netstandard2.0</TargetFramework>
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<ReleaseVersion>1.1.2</ReleaseVersion>
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<ReleaseVersion>0.0.5-pre</ReleaseVersion>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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<DocumentationFile>bin\Release\netstandard2.0\AiForms.Effects.xml</DocumentationFile>
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<NoWarn>1701;1702;1591</NoWarn>
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<LangVersion>8.0</LangVersion>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<LangVersion>8.0</LangVersion>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Xamarin.Forms" Version="4.4.0.991537" />

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