David Dancy programmation

programmation / delayed_text_entry

Created June 21, 2015 23:20

How to delay response to user text entry until after user finishes typing

	// http://forums.xamarin.com/discussion/comment/133731/#Comment_133731

	public partial class Page1
	{
	public Page1()
	{
	this.InitializeComponent();
	this.Entry.TextChanged += this.EntryOnTextChanged;
	}
	//

programmation / threadsafe_imagesource

Created June 22, 2015 00:33

How to make sure only one ImageSource load is in flight at a time

	// https://bugzilla.xamarin.com/show_bug.cgi?id=21981#c5

	using Xamarin.Forms;

	[assembly: ExportImageSourceHandler(typeof(UriImageSource), typeof(iOS.Renderers.ImageLoaderSourceHandler))]

	namespace iOS.Renderers
	{
	using System.Collections.Generic;
	using System.Threading;

programmation / task_dependency_manager

Created June 22, 2015 02:20

Task dependency manager from Stephen Toub MSDN article. Similar to NSOperationQueue / NSOperation on MacOS / iOS.

	// https://msdn.microsoft.com/en-us/magazine/dd569760.aspx

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using System.Threading;
	using System.Threading.Tasks;

	namespace OperationQueueTest

programmation / Dsp.cs

Last active August 29, 2015 14:25 — forked from praeclarum/Dsp.cs

	using System;
	using System.Runtime.InteropServices;

	namespace Circuit
	{
	public static class Dsp
	{
	class FftSetupD : IDisposable
	{
	public IntPtr Handle;

programmation / ByteArrayToImageSource.cs

Created July 27, 2015 02:53

Convert byte array to ImageSource

	// http://forums.xamarin.com/discussion/comment/89964/#Comment_89964

	namespace Core.Converters
	{
	public class ByteArrayToImageSource : IValueConverter
	{
	public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
	{
	if (value == null \|\| value is DBNull)
	return null;

programmation / ResultPage.cs

Created July 28, 2015 01:21

Xamarin Forms page returning a result

	// http://forums.xamarin.com/discussion/comment/129611/#Comment_129611

	public interface IPageWithResult<out T>
	{
	T PageResult { get; }
	}

	public static class PageExtensions
	{
	public static Task<TResult> ShowModalAsync<TPage, TResult>(this TPage page)

programmation / gist:a83ce6fae103029493a6

Created July 28, 2015 01:30

Xamarin Forms Search bar

	<SearchBar x:Name="search" Placeholder="Search"
	SearchCommandParameter="{Binding Text, Source={x:Reference search}}" />

programmation / SkinnableApp.txt

Last active October 20, 2015 04:30

Foundations of a skinnable app

	// SkinnableApp/App.xaml

	<?xml version="1.0" encoding="UTF-8"?>
	<Application xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="SkinnableApp.App">
	<Application.Resources>
	<ResourceDictionary>
	</ResourceDictionary>
	</Application.Resources>
	</Application>

programmation / RoundRectLabel.cs

Created July 28, 2015 02:02

Xamarin Forms Label control with rounded rects. Invisible for configurable value.

	// RoundRectLabel.cs

	using System;
	using Xamarin.Forms;

	namespace App
	{
	public class RoundRectLabel : Label
	{
	public static readonly BindableProperty BorderColorProperty =

programmation / ConcreteTypeConverter.cs

Created July 28, 2015 02:15

Json type converter used as attribute on convertible class

	using System;
	using System.Collections.Generic;
	using Newtonsoft.Json;
	using Newtonsoft.Json.Linq;
	using Xamarin.Forms;

	namespace App
	{
	public class ConcreteTypeConverter<T>
	: JsonConverter