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using System;
using System.Diagnostics;
using System.Globalization;
using Android.App;
using Android.Content.PM;
using Android.OS;
using Android.Widget;
using Java.Interop;
using Xamarin.Forms;
using Xamarin.Forms.ControlGallery.Android;
using Xamarin.Forms.Controls;
using Xamarin.Forms.Controls.Issues;
using Xamarin.Forms.Platform.Android;
using Xamarin.Forms.Platform.Android.AppLinks;
using Android.Content;
using Android.Views;
using AColor = Android.Graphics.Color;
[assembly: Dependency (typeof (CacheService))]
[assembly: Dependency (typeof (TestCloudService))]
[assembly: Dependency (typeof (StringProvider))]
[assembly: ExportRenderer (typeof (DisposePage), typeof (DisposePageRenderer))]
[assembly: ExportRenderer (typeof (DisposeLabel), typeof (DisposeLabelRenderer))]
[assembly: ExportRenderer (typeof (CustomButton), typeof (CustomButtonRenderer))]
[assembly: ExportEffect (typeof (BorderEffect), "BorderEffect")]
namespace Xamarin.Forms.ControlGallery.Android
{
public partial class Activity1
{
App _app;
void AddNativeControls (NestedNativeControlGalleryPage page)
{
if (page.NativeControlsAdded) {
return;
}
StackLayout sl = page.Layout;
// Create and add a native TextView
var textView = new TextView (this) { Text = "I am a native TextView", TextSize = 14 };
sl?.Children.Add (textView);
// Create and add a native Button
var button = new global::Android.Widget.Button (this) { Text = "Click to change TextView font size" };
float originalSize = textView.TextSize;
button.Click += (sender, args) => { textView.TextSize = textView.TextSize == originalSize ? 24 : 14; };
sl?.Children.Add (button.ToView ());
// Create a control which we know doesn't behave correctly with regard to measurement
var difficultControl0 = new BrokenNativeControl (this) {
Text = "This native control doesn't play nice with sizing, which is why it's all squished to one side."
};
var difficultControl1 = new BrokenNativeControl (this) {
Text = "Same control, but with a custom GetDesiredSize delegate to accomodate it's sizing problems."
};
// Add a misbehaving control
sl?.Children.Add (difficultControl0);
// Add a misbehaving control with a custom delegate for GetDesiredSize
sl?.Children.Add (difficultControl1, SizeBrokenControl);
page.NativeControlsAdded = true;
}
static SizeRequest? SizeBrokenControl (NativeViewWrapperRenderer renderer,
int widthConstraint, int heightConstraint)
{
global::Android.Views.View nativeView = renderer.Control;
if ((widthConstraint == 0 && heightConstraint == 0) || nativeView == null) {
return null;
}
int width = global::Android.Views.View.MeasureSpec.GetSize (widthConstraint);
int widthSpec = global::Android.Views.View.MeasureSpec.MakeMeasureSpec (width * 2,
global::Android.Views.View.MeasureSpec.GetMode (widthConstraint));
nativeView.Measure (widthSpec, heightConstraint);
var size = new Size (nativeView.MeasuredWidth, nativeView.MeasuredHeight);
return new SizeRequest (size);
}
void AddNativeBindings(NativeBindingGalleryPage page)
{
if (page.NativeControlsAdded)
return;
StackLayout sl = page.Layout;
var textView = new TextView(this)
{
TextSize = 14,
Text = "This will be text"
};
var viewGroup = new LinearLayout(this);
viewGroup.AddView(textView);
var buttonColor = new global::Android.Widget.Button(this) { Text = "Change label Color" };
buttonColor.Click += (sender, e) => textView.SetTextColor(Color.Blue.ToAndroid());
var colorPicker = new ColorPickerView(this, 200, 200);
textView.SetBinding(nameof(textView.Text), new Binding("NativeLabel"));
//this doesn't work because there's not TextColor property
//textView.SetBinding("TextColor", new Binding("NativeLabelColor", converter: new ColorConverter()));
colorPicker.SetBinding(nameof(colorPicker.SelectedColor), new Binding("NativeLabelColor", BindingMode.TwoWay, new ColorConverter()), "ColorPicked");
sl?.Children.Add(viewGroup);
sl?.Children.Add(buttonColor.ToView());
sl?.Children.Add(colorPicker);
page.NativeControlsAdded = true;
}
public class ColorConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value is Color)
return ((Color)value).ToAndroid();
return null;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value is global::Android.Graphics.Color)
return ((global::Android.Graphics.Color)value).ToColor();
return null;
}
}
[Export("NavigateToTest")]
public bool NavigateToTest(string test)
{
return _app.NavigateToTestPage(test);
}
[Export("Reset")]
public void Reset()
{
_app.Reset();
}
}
}
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