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Xamarin-Forms-Controls
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Updated controls (added SelectedItem property).

This commit is contained in:
Javier Suárez Ruiz 2016-11-06 19:51:18 +01:00
Родитель d9814a336b
Коммит 43961a9fd6
11 изменённых файлов: 141 добавлений и 93 удалений
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Двоичные данные
HorizontalListView/.vs/HorizontalListView/v14/.suo
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Двоичный файл не отображается.

2
HorizontalListView/HorizontalListView.sln
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@ -262,6 +262,8 @@ Global
{B18D6F4A-99DD-48BE-BEA2-2F63ACD0EE3F}.AppStore|x86.Build.0 = Release|x86
{B18D6F4A-99DD-48BE-BEA2-2F63ACD0EE3F}.AppStore|x86.Deploy.0 = Release|x86
{B18D6F4A-99DD-48BE-BEA2-2F63ACD0EE3F}.Debug|Any CPU.ActiveCfg = Debug|x86
{B18D6F4A-99DD-48BE-BEA2-2F63ACD0EE3F}.Debug|Any CPU.Build.0 = Debug|x86
{B18D6F4A-99DD-48BE-BEA2-2F63ACD0EE3F}.Debug|Any CPU.Deploy.0 = Debug|x86
{B18D6F4A-99DD-48BE-BEA2-2F63ACD0EE3F}.Debug|ARM.ActiveCfg = Debug|ARM
{B18D6F4A-99DD-48BE-BEA2-2F63ACD0EE3F}.Debug|ARM.Build.0 = Debug|ARM
{B18D6F4A-99DD-48BE-BEA2-2F63ACD0EE3F}.Debug|ARM.Deploy.0 = Debug|ARM

12
HorizontalListView/HorizontalListView/HorizontalListView.Sample/ViewModels/HorizontalMonkeysViewModel.cs
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@ -6,8 +6,20 @@ namespace HorizontalListViewSample.ViewModels
{
public class HorizontalMonkeysViewModel : ViewModelBase
{
private Monkey _selectedMonkey;
public ObservableCollection<Monkey> Monkeys { get; set; }
public Monkey SelectedMonkey
{
get { return _selectedMonkey; }
set
{
_selectedMonkey = value;
RaisePropertyChanged();
}
}
public HorizontalMonkeysViewModel()
{
Monkeys = new ObservableCollection<Monkey>

6
HorizontalListView/HorizontalListView/HorizontalListView.Sample/Views/HorizontalMonkeysView.xaml
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@ -14,6 +14,7 @@
<controls:HorizontalListView
Grid.Row="0"
ItemsSource="{Binding Monkeys}"
SelectedItem="{Binding SelectedMonkey, Mode=TwoWay}"
HeightRequest="200">
<controls:HorizontalListView.ItemTemplate>
<DataTemplate>
@ -21,5 +22,10 @@
</DataTemplate>
</controls:HorizontalListView.ItemTemplate>
</controls:HorizontalListView>
<Label
Grid.Row="1"
Text="{Binding SelectedMonkey.Name}"
TextColor="Black"
FontSize="Medium"/>
</Grid>
</ContentPage>

18
HorizontalListView/HorizontalListView/HorizontalListView/HorizontalListView.cs
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@ -18,6 +18,16 @@ namespace HorizontalListView.Controls
BindableProperty.Create("ItemsSource", typeof(IEnumerable), typeof(HorizontalListView), default(IEnumerable<object>),
BindingMode.TwoWay, propertyChanged: ItemsSourceChanged);
public object SelectedItem
{
get { return (object)GetValue(SelectedItemProperty); }
set { SetValue(SelectedItemProperty, value); }
}
public static readonly BindableProperty SelectedItemProperty =
BindableProperty.Create("SelectedItem", typeof(object), typeof(HorizontalListView), default(object),
BindingMode.TwoWay, null);
public DataTemplate ItemTemplate
{
get { return (DataTemplate)GetValue(ItemTemplateProperty); }
@ -66,9 +76,17 @@ namespace HorizontalListView.Controls
{
var content = ItemTemplate.CreateContent();
var view = content as View;
var tapEvent = new TapGestureRecognizer();
tapEvent.Tapped += (c, r) =>
{
SelectedItem = item;
};
if (view == null)
return null;
view.GestureRecognizers.Add(tapEvent);
view.BindingContext = item;
return view;

Двоичные данные
WrapView/.vs/WrapView/v14/.suo
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Двоичный файл не отображается.

2
WrapView/WrapView.sln
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@ -262,6 +262,8 @@ Global
{AFA1B1E4-B424-429A-960F-E07356118135}.AppStore|x86.Build.0 = Release|x86
{AFA1B1E4-B424-429A-960F-E07356118135}.AppStore|x86.Deploy.0 = Release|x86
{AFA1B1E4-B424-429A-960F-E07356118135}.Debug|Any CPU.ActiveCfg = Debug|x86
{AFA1B1E4-B424-429A-960F-E07356118135}.Debug|Any CPU.Build.0 = Debug|x86
{AFA1B1E4-B424-429A-960F-E07356118135}.Debug|Any CPU.Deploy.0 = Debug|x86
{AFA1B1E4-B424-429A-960F-E07356118135}.Debug|ARM.ActiveCfg = Debug|ARM
{AFA1B1E4-B424-429A-960F-E07356118135}.Debug|ARM.Build.0 = Debug|ARM
{AFA1B1E4-B424-429A-960F-E07356118135}.Debug|ARM.Deploy.0 = Debug|ARM

12
WrapView/WrapView/WrapView.Sample/ViewModels/MonkeysViewModel.cs
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@ -6,8 +6,20 @@ namespace WrapViewSample.ViewModels
{
public class MonkeysViewModel : ViewModelBase
{
private Monkey _selectedMonkey;
public ObservableCollection<Monkey> Monkeys { get; set; }
public Monkey SelectedMonkey
{
get { return _selectedMonkey; }
set
{
_selectedMonkey = value;
RaisePropertyChanged();
}
}
public MonkeysViewModel()
{
Monkeys = new ObservableCollection<Monkey>

29
WrapView/WrapView/WrapView.Sample/Views/MonkeysView.xaml
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@ -5,12 +5,25 @@
xmlns:controls="clr-namespace:WrapView.Controls;assembly=WrapView"
xmlns:templates="clr-namespace:WrapViewSample.Views.Templates;assembly=WrapViewSample"
Title="WrapView">
<controls:WrapView
ItemsSource="{Binding Monkeys}">
<controls:WrapView.ItemTemplate>
<DataTemplate>
<templates:MonkeyItemTemplate/>
</DataTemplate>
</controls:WrapView.ItemTemplate>
</controls:WrapView>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<controls:WrapView
Grid.Row="0"
ItemsSource="{Binding Monkeys}"
SelectedItem="{Binding SelectedMonkey, Mode=TwoWay}">
<controls:WrapView.ItemTemplate>
<DataTemplate>
<templates:MonkeyItemTemplate/>
</DataTemplate>
</controls:WrapView.ItemTemplate>
</controls:WrapView>
<Label
Grid.Row="1"
Text="{Binding SelectedMonkey.Name}"
TextColor="Black"
FontSize="Medium"/>
</Grid>
</ContentPage>

13
WrapView/WrapView/WrapView.Sample/Views/MonkeysView.xaml.cs
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@ -1,5 +1,4 @@
using WrapView;
using WrapViewSample.ViewModels;
using Xamarin.Forms;
namespace WrapViewSample.Views
@ -16,17 +15,5 @@ namespace WrapViewSample.Views
BindingContext = App.Locator.MonkeysViewModel;
}
protected override void OnAppearing()
{
var viewModel = BindingContext as MonkeysViewModel;
if (viewModel != null) viewModel.OnAppearing(Parameter);
}
protected override void OnDisappearing()
{
var viewModel = BindingContext as MonkeysViewModel;
if (viewModel != null) viewModel.OnDisappearing();
}
}
}

140
WrapView/WrapView/WrapView/WrapView.cs
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@ -1,18 +1,84 @@
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Xamarin.Forms;
namespace WrapView.Controls
{
public class WrapPanel : Layout<View>
public class WrapView : Layout<View>
{
public IEnumerable ItemsSource
{
get { return (IEnumerable)GetValue(ItemsSourceProperty); }
set { SetValue(ItemsSourceProperty, value); }
}
public static readonly BindableProperty ItemsSourceProperty =
BindableProperty.Create("ItemsSource", typeof(IEnumerable), typeof(WrapView), default(IEnumerable<object>),
BindingMode.TwoWay, propertyChanged: ItemsSourceChanged);
public object SelectedItem
{
get { return (object)GetValue(SelectedItemProperty); }
set { SetValue(SelectedItemProperty, value); }
}
public static readonly BindableProperty SelectedItemProperty =
BindableProperty.Create("SelectedItem", typeof(object), typeof(WrapView), default(object),
BindingMode.TwoWay, null);
public DataTemplate ItemTemplate
{
get { return (DataTemplate)GetValue(ItemTemplateProperty); }
set { SetValue(ItemTemplateProperty, value); }
}
public static readonly BindableProperty ItemTemplateProperty =
BindableProperty.Create("ItemTemplate", typeof(DataTemplate), typeof(WrapView),
default(DataTemplate));
private static void ItemsSourceChanged(BindableObject bindable, object oldValue, object newValue)
{
var itemsLayout = (WrapView)bindable;
itemsLayout.SetItemsSource();
}
protected virtual void SetItemsSource()
{
if (ItemsSource == null)
return;
foreach (var item in ItemsSource)
Children.Add(GetItem(item));
}
protected virtual View GetItem(object item)
{
var content = ItemTemplate.CreateContent();
var view = content as View;
var tapEvent = new TapGestureRecognizer();
tapEvent.Tapped += (c, r) =>
{
SelectedItem = item;
};
if (view == null)
return null;
view.GestureRecognizers.Add(tapEvent);
view.BindingContext = item;
return view;
}
protected override void LayoutChildren(double x, double y, double width, double height)
{
double rowHeight = 0;
double yPos = y, xPos = x;
foreach (var child in Children)
foreach (var child in Children.Where(c => c.IsVisible))
{
var request = child.GetSizeRequest(width, height);
@ -31,76 +97,6 @@ namespace WrapView.Controls
LayoutChildIntoBoundingRegion(child, region);
xPos += region.Width;
}
HeightRequest = yPos;
}
}
public class WrapView : Grid
{
protected readonly ScrollView ScrollView;
protected readonly WrapPanel WrapPanel;
public IEnumerable ItemsSource
{
get { return (IEnumerable)GetValue(ItemsSourceProperty); }
set { SetValue(ItemsSourceProperty, value); }
}
public static readonly BindableProperty ItemsSourceProperty =
BindableProperty.Create("ItemsSource", typeof(IEnumerable), typeof(WrapView), default(IEnumerable<object>),
BindingMode.TwoWay, propertyChanged: ItemsSourceChanged);
public DataTemplate ItemTemplate
{
get { return (DataTemplate)GetValue(ItemTemplateProperty); }
set { SetValue(ItemTemplateProperty, value); }
}
public static readonly BindableProperty ItemTemplateProperty =
BindableProperty.Create("ItemTemplate", typeof(DataTemplate), typeof(WrapView), default(DataTemplate));
public WrapView()
{
ScrollView = new ScrollView
{
Orientation = ScrollOrientation.Vertical
};
WrapPanel = new WrapPanel();
ScrollView.Content = WrapPanel;
Children.Add(ScrollView);
}
private static void ItemsSourceChanged(BindableObject bindable, object oldValue, object newValue)
{
var itemsLayout = (WrapView)bindable;
itemsLayout.SetItemsSource();
}
protected virtual void SetItemsSource()
{
WrapPanel.Children.Clear();
if (ItemsSource == null)
return;
foreach (var item in ItemsSource)
WrapPanel.Children.Add(GetItem(item));
}
protected virtual View GetItem(object item)
{
var content = ItemTemplate.CreateContent();
var view = content as View;
if (view == null)
return null;
view.BindingContext = item;
return view;
}
}
}