sl?.Children.Add(uilabel);
// Create and add a native Button
- var uibutton = new UIButton(UIButtonType.RoundedRect);
+ var uibutton = new UIButton(UIButtonType.System);
uibutton.SetTitle("Toggle Text Amount", UIControlState.Normal);
uibutton.Font = UIFont.FromName("Helvetica", 14f);
Text = "DefaultText"
};
- var uibuttonColor = new UIButton(UIButtonType.RoundedRect);
+ var uibuttonColor = new UIButton(UIButtonType.System);
uibuttonColor.SetTitle("Toggle Text Color Binding", UIControlState.Normal);
uibuttonColor.Font = UIFont.FromName("Helvetica", 14f);
uibuttonColor.TouchUpInside += (sender, args) => uilabel.TextColor = UIColor.Blue;
public void StartPressed40911()
{
var loginViewController = new UIViewController { View = { BackgroundColor = UIColor.White } };
- var button = UIButton.FromType(UIButtonType.RoundedRect);
+ var button = UIButton.FromType(UIButtonType.System);
button.SetTitle("Login", UIControlState.Normal);
button.Frame = new CGRect(20, 100, 200, 44);
loginViewController.View.AddSubview(button);
--- /dev/null
+using UIKit;
+using Xamarin.Forms.Platform.iOS;
+using Xamarin.Forms;
+using System.Collections.Generic;
+using Xamarin.Forms.ControlGallery.iOS;
+using Xamarin.Forms.Controls.Issues;
+
+[assembly: ExportRenderer(typeof(Button), typeof(CustomRenderer40251))]
+namespace Xamarin.Forms.ControlGallery.iOS
+{
+ public class CustomRenderer40251 : ButtonRenderer
+ {
+ Dictionary<string, object> originalValues = new Dictionary<string, object>();
+
+ public CustomRenderer40251()
+ {
+ if (TestPage40251.Arg == "TitleColor")
+ {
+ originalValues.Add("TitleColor", UIButton.Appearance.TitleColor(UIControlState.Normal));
+ UIButton.Appearance.SetTitleColor(UIColor.Red, UIControlState.Normal);
+ }
+ else if (TestPage40251.Arg == "TitleShadowColor")
+ {
+ originalValues.Add("TitleShadowColor", UIButton.Appearance.TitleShadowColor(UIControlState.Normal));
+ UIButton.Appearance.SetTitleShadowColor(UIColor.White, UIControlState.Normal);
+ }
+ else if (TestPage40251.Arg == "BackgroundImage")
+ {
+ originalValues.Add("BackgroundImage", UIButton.Appearance.BackgroundImageForState(UIControlState.Normal));
+ UIButton.Appearance.SetBackgroundImage(new UIImage("Intranet-icon.png"), UIControlState.Normal);
+ }
+ }
+
+ protected override void OnElementChanged(ElementChangedEventArgs<Button> e)
+ {
+ base.OnElementChanged(e);
+
+ if (e.NewElement != null)
+ {
+ if (Control != null)
+ Control.TitleShadowOffset = new CoreGraphics.CGSize(2, 2);
+ }
+ }
+
+ protected override void Dispose(bool disposing)
+ {
+ if (disposing)
+ {
+ if (TestPage40251.Arg == "TitleColor")
+ UIButton.Appearance.SetTitleColor(originalValues["TitleColor"] as UIColor, UIControlState.Normal);
+ else if (TestPage40251.Arg == "TitleShadowColor")
+ UIButton.Appearance.SetTitleShadowColor(originalValues["TitleShadowColor"] as UIColor, UIControlState.Normal);
+ else if (TestPage40251.Arg == "BackgroundImage")
+ UIButton.Appearance.SetBackgroundImage(originalValues["BackgroundImage"] as UIImage, UIControlState.Normal);
+ }
+
+ base.Dispose(disposing);
+ }
+ }
+}
\ No newline at end of file
</PropertyGroup>
<ItemGroup>
<Compile Include="BrokenNativeControl.cs" />
+ <Compile Include="CustomRenderer40251.cs" />
<Compile Include="Main.cs" />
<Compile Include="AppDelegate.cs" />
<None Include="app.config" />
--- /dev/null
+using Xamarin.Forms.CustomAttributes;
+using Xamarin.Forms.Internals;
+using System;
+
+#if UITEST
+using Xamarin.UITest;
+using NUnit.Framework;
+#endif
+
+namespace Xamarin.Forms.Controls.Issues
+{
+ [Preserve(AllMembers = true)]
+ [Issue(IssueTracker.Bugzilla, 40251, "Cannot style Buttons natively using UIButton.Appearance", PlatformAffected.iOS)]
+ public class Bugzilla40251 : TestNavigationPage // or TestMasterDetailPage, etc ...
+ {
+ protected override void Init()
+ {
+ PushAsync(new LandingPage40251());
+ }
+ }
+
+ [Preserve(AllMembers = true)]
+ public class LandingPage40251 : ContentPage
+ {
+ public LandingPage40251()
+ {
+ var stackLayout = new StackLayout
+ {
+ Orientation = StackOrientation.Vertical,
+ Spacing = 20,
+ VerticalOptions = LayoutOptions.Center
+ };
+
+ var label0 = new Label
+ {
+ Text = "Each label below will update UIButton.Appearance proxy. When you remove the page from the stack, the original value will be set again.",
+ HorizontalTextAlignment = TextAlignment.Center
+ };
+ stackLayout.Children.Add(label0);
+
+ var label1 = new Label
+ {
+ Text = "TitleColor",
+ HorizontalTextAlignment = TextAlignment.Center
+ };
+ var t1 = new TapGestureRecognizer();
+ t1.Tapped += T_Tapped;
+ label1.GestureRecognizers.Add(t1);
+ stackLayout.Children.Add(label1);
+
+ var label2 = new Label
+ {
+ Text = "TitleShadowColor",
+ HorizontalTextAlignment = TextAlignment.Center
+ };
+ var t2 = new TapGestureRecognizer();
+ t2.Tapped += T_Tapped2;
+ label2.GestureRecognizers.Add(t2);
+ stackLayout.Children.Add(label2);
+
+ var label3 = new Label
+ {
+ Text = "BackgroundImage",
+ HorizontalTextAlignment = TextAlignment.Center
+ };
+ var t3 = new TapGestureRecognizer();
+ t3.Tapped += T_Tapped3;
+ label3.GestureRecognizers.Add(t3);
+ stackLayout.Children.Add(label3);
+
+ Content = stackLayout;
+ }
+
+ private async void T_Tapped(object sender, EventArgs e)
+ {
+ await Navigation.PushAsync(new TestPage40251("TitleColor"));
+ }
+
+ private async void T_Tapped2(object sender, EventArgs e)
+ {
+ await Navigation.PushAsync(new TestPage40251("TitleShadowColor"));
+ }
+
+ private async void T_Tapped3(object sender, EventArgs e)
+ {
+ await Navigation.PushAsync(new TestPage40251("BackgroundImage"));
+ }
+ }
+
+ [Preserve(AllMembers = true)]
+ public class TestPage40251 : ContentPage
+ {
+ public static string Arg;
+
+ public TestPage40251(string arg)
+ {
+ Arg = arg;
+
+ Content = new ContentView
+ {
+ Content = new Button
+ {
+ HorizontalOptions = LayoutOptions.Center,
+ VerticalOptions = LayoutOptions.Center,
+ Text = "Button",
+ BackgroundColor = Color.Black,
+ WidthRequest = 250,
+ HeightRequest = 50
+ }
+ };
+ }
+ }
+}
\ No newline at end of file
<Compile Include="$(MSBuildThisFileDirectory)Bugzilla40173.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Bugzilla39821.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Bugzilla40185.cs" />
+ <Compile Include="$(MSBuildThisFileDirectory)Bugzilla40251.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Bugzilla40333.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Bugzilla31806.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Bugzilla40408.cs" />
// but under iOS that suggestion won't work
readonly nfloat _minimumButtonHeight = 44; // Apple docs
+ static readonly UIControlState[] s_controlStates = { UIControlState.Normal, UIControlState.Highlighted, UIControlState.Disabled };
+
public override SizeF SizeThatFits(SizeF size)
{
var result = base.SizeThatFits(size);
{
if (Control == null)
{
- SetNativeControl(new UIButton(UIButtonType.RoundedRect));
+ SetNativeControl(new UIButton(UIButtonType.System));
Debug.Assert(Control != null, "Control != null");
+ SetControlPropertiesFromProxy();
+
_buttonTextColorDefaultNormal = Control.TitleColor(UIControlState.Normal);
_buttonTextColorDefaultHighlighted = Control.TitleColor(UIControlState.Highlighted);
_buttonTextColorDefaultDisabled = Control.TitleColor(UIControlState.Disabled);
else if (e.PropertyName == Button.ImageProperty.PropertyName)
UpdateImage();
}
-
+
protected override void SetAccessibilityLabel()
{
// If we have not specified an AccessibilityLabel and the AccessibiltyLabel is current bound to the Title,
base.SetAccessibilityLabel();
}
+
+ void SetControlPropertiesFromProxy()
+ {
+ foreach (UIControlState uiControlState in s_controlStates)
+ {
+ Control.SetTitleColor(UIButton.Appearance.TitleColor(uiControlState), uiControlState); // if new values are null, old values are preserved.
+ Control.SetTitleShadowColor(UIButton.Appearance.TitleShadowColor(uiControlState), uiControlState);
+ Control.SetBackgroundImage(UIButton.Appearance.BackgroundImageForState(uiControlState), uiControlState);
+ }
+ }
void OnButtonTouchUpInside(object sender, EventArgs eventArgs)
{
void ClearEdgeInsets(UIButton button)
{
if (button == null)
- {
return;
- }
Control.ImageEdgeInsets = new UIEdgeInsets(0, 0, 0, 0);
Control.TitleEdgeInsets = new UIEdgeInsets(0, 0, 0, 0);
void ComputeEdgeInsets(UIButton button, Button.ButtonContentLayout layout)
{
if (button?.ImageView?.Image == null || string.IsNullOrEmpty(button.TitleLabel?.Text))
- {
return;
- }
var position = layout.Position;
var spacing = (nfloat)(layout.Spacing / 2);
button.TitleEdgeInsets = new UIEdgeInsets(titleVertOffset, -horizontalTitleOffset, -titleVertOffset, horizontalTitleOffset);
}
}
-}
\ No newline at end of file
+}
projects / platform / upstream / xamarin-forms.git / commitdiff