private SegmentItem GetSegmentItem(object data)
{
SegmentItem item = null;
if (data is SegmentItem)
{
item = (SegmentItem)data;
}
else
{
item = new SegmentItem();
var view = (View)this.ItemTemplate.CreateContent();
if (view is SegmentItem)
{
item = (SegmentItem)view;
}
else
{
item.Content = view;
}
item.BindingContext = data;
}
item.HorizontalOptions = LayoutOptions.FillAndExpand;
item.VerticalOptions = LayoutOptions.FillAndExpand;
item.Content.HorizontalOptions = LayoutOptions.Center;
item.Content.VerticalOptions = LayoutOptions.Center;
TapBinder.SetCmd(item, this.SelectedCmd);
TapBinder.SetParam(item, item);
return(item);
}
/// <summary>
///
/// </summary>
/// <param name="data"></param>
/// <param name="idx"></param>
/// <returns></returns>
private View GetChild(object data)
{
View child = null;
if (this.ItemTemplate != null || this.ItemTemplateSelector != null)
{
if (this.ItemTemplateSelector != null)
{
child = (View)this.ItemTemplateSelector.SelectTemplate(data, this).CreateContent();
}
else if (this.ItemTemplate != null)
{
child = (View)this.ItemTemplate.CreateContent();
}
if (child != null)
{
child.BindingContext = data;
}
}
if (child == null)
{
child = new Label()
{
Text = "Not set ItemTemplate"
}
}
;
child.BindingContext = data;
child.SetBinding(TapBinder.CmdProperty, new Binding(nameof(this.ItemTapedCmd), source: this));
TapBinder.SetParam(child, data);
TapBinder.SetWithFeedback(child, ItemWithFeedBack);
return(child);
}
private static void ItemWithFeedBackPropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
var grid = (UniformGrid)bindable;
foreach (var view in grid.Children)
{
TapBinder.SetWithFeedback(view, (bool)newValue);
}
}
//public static ImageSource DefaultCheckedImg1 {
// get {
// return DefaultCheckedImg;
// }
//}
public CheckBox()
{
this.TapCmd = new Command(() => {
this.Checked = !this.Checked;
if (this.CheckChanged != null)
{
this.CheckChanged.Invoke(this, new EventArgs());
}
if (this.CheckChangedCmd != null && this.CheckChangedCmd.CanExecute(this.Checked))
{
this.CheckChangedCmd.Execute(this.Checked);
}
});
var cols = new ColumnDefinitionCollection();
cols.Add(new ColumnDefinition()
{
Width = GridLength.Auto
});
cols.Add(new ColumnDefinition()
{
Width = GridLength.Auto
});
this.Grid = new Grid()
{
ColumnDefinitions = cols,
};
//绑定内部Tap 命令
TapBinder.SetCmd(this.Grid, this.TapCmd);
this.Content = this.Grid;
this.Label = new Label()
{
BindingContext = this,
VerticalTextAlignment = TextAlignment.Center
};
this.Label.SetBinding(Label.TextProperty, "Text");
this.Label.SetBinding(Label.IsVisibleProperty, "ShowLabel");
this.Label.SetValue(Grid.ColumnProperty, 1);
this.Grid.Children.Add(this.Label);
this.Icon = new Image()
{
WidthRequest = this.Size,
HeightRequest = this.Size,
Source = this.OffImg
};
this.Icon.SetValue(Grid.ColumnProperty, 0);
this.Grid.Children.Add(this.Icon);
}
private static void ItemTapedCmdChanged(BindableObject bindable, object oldValue, object newValue)
{
var g = (UniformGrid)bindable;
var flag = (newValue != null || g.ItemTapedCmd != null);
foreach (var v in g.Children)
{
TapBinder.SetWithFeedback(v, flag);
}
}
private static void ItemTapedCmdChanged(BindableObject bindable, object oldValue, object newValue)
{
var repeater = (Repeater)bindable;
var flag = (newValue != null || repeater.ItemTapedCmd != null);
foreach (var v in repeater.Container.Children)
{
TapBinder.SetWithFeedback(v, flag);
}
}
/// <summary>
/// 从模板/模板选择器创建子视图
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
private View GetChildView(object data)
{
View view = null;
if (this.ItemTemplate != null || this.ItemTemplateSelector != null)
{
if (this.ItemTemplateSelector != null)
{
// SelectTemplate 的第二个参数，即 TemplateSelector 的 OnSelectTemplate 方法的 container 参数
view = (View)this.ItemTemplateSelector.SelectTemplate(data, this).CreateContent();
}
else if (this.ItemTemplate != null)
{
view = (View)this.ItemTemplate.CreateContent();
}
if (view != null)
{
view.BindingContext = data;
TapBinder.SetCmd(view, this.TapCmd);
TapBinder.SetParam(view, data);
if (this.ItemTaped == null && this.ItemTapedCmd == null)
{
TapBinder.SetWithFeedback(view, false);
}
}
}
if (view == null)
{
view = new Label()
{
Text = "111"
}
}
;
return(view);
}
/// <summary>
/// 从模板/模板选择器创建标签
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
private View GetTabView(object data)
{
View view = null;
if (this.TabTemplate != null || this.TabTemplateSelector != null)
{
//优先使用 TemplateSelector
if (this.TabTemplateSelector != null)
{
// SelectTemplate 的第二个参数，即 TemplateSelector 的 OnSelectTemplate 方法的 container 参数
view = (View)this.TabTemplateSelector.SelectTemplate(data, this).CreateContent();
}
else if (this.TabTemplate != null)
{
view = (View)this.TabTemplate.CreateContent();
}
if (view != null)
{
//上下文
view.BindingContext = data;
}
}
if (view == null)
{
view = new Label()
{
Text = "Tab"
}
}
;
TapBinder.SetCmd(view, this.SelectedCmd);
TapBinder.SetParam(view, data);
return(view);
}
}
protected virtual Radio GetRadio(object data)
{
Radio item = null;
if (data is Radio)
{
item = (Radio)data;
}
else
{
item = new Radio();
item.Value = data;
if (!string.IsNullOrWhiteSpace(this.DisplayPath))
{
//item.Text = Helper.GetProperty<string>(data, this.DisplayPath, "DisplayPath Invalid");
//item.SetBinding(Radio.TextProperty, this.DisplayPath);
item.SetBinding(Radio.TextProperty, new Binding(this.DisplayPath, source: data));
}
else
{
item.Text = data.ToString();
}
}
item.Size = this.RadioSize;
if (this.UnSelectedItemControlTemplate != null)
{
item.ControlTemplate = this.UnSelectedItemControlTemplate;
}
TapBinder.SetCmd(item, this.SelectedCmd);
TapBinder.SetParam(item, item);
return(item);
}
public Stepper()
{
InitializeComponent();
this.Resources = new ResourceDictionary();
this.Resources.Add("BorderColor", this.BorderColor);
this.Resources.Add("TextColor", this.TextColor);
TapBinder.SetCmd(this.btnIncrease, new Command(() => {
//if (this.btnIncrease.IsEnabled) {
this.Value += this.Step;
this.Update();
//}
}));
TapBinder.SetCmd(this.btnReduce, new Command(() => {
//if (this.btnReduce.IsEnabled) {
this.Value -= this.Step;
this.Update();
//}
}));
this.Update();
}
private static void TapCmdChanged(BindableObject bindable, object oldValue, object newValue)
{
TapBinder.SetCmd(bindable, (ICommand)newValue);
}
private static void TapCmdParamChanged(BindableObject bindable, object oldValue, object newValue)
{
TapBinder.SetParam(bindable, newValue);
}
internal void SetTap(ICommand cmd)
{
TapBinder.SetCmd(this.Content, cmd);
TapBinder.SetParam(this.Content, this);
}
/// <summary>
///
/// </summary>
/// <param name="data"></param>
/// <param name="idx"></param>
/// <returns></returns>
private TabPageView GetTab(object data, int idx)
{
TabPageView item;
if (data is TabPageView)
{
item = (TabPageView)data;
}
else
{
item = new TabPageView()
{
Index = idx,
BindingContext = data
};
#region headView
View headView = null;
if (this.TabTemplate != null || this.TabTemplateSelector != null)
{
//优先使用 TemplateSelector
if (this.TabTemplateSelector != null)
{
// SelectTemplate 的第二个参数，即 TemplateSelector 的 OnSelectTemplate 方法的 container 参数
headView = (View)this.TabTemplateSelector.SelectTemplate(data, item).CreateContent();
}
else if (this.TabTemplate != null)
{
headView = (View)this.TabTemplate.CreateContent();
}
if (headView != null)
{
//上下文
headView.BindingContext = data;
}
}
if (headView == null)
{
headView = new Label()
{
Text = "Tab"
}
}
;
//item.Header = headView;
item.Header = new ContentView()
{
Content = headView,
BindingContext = item
};
//添加手势
TapBinder.SetCmd(headView, this.TabSelectedCmd);
TapBinder.SetParam(headView, item);
#endregion
#region bodyView
View bodyView = null;
if (this.ItemTemplate != null || this.ItemTemplateSelector != null)
{
if (this.ItemTemplateSelector != null)
{
bodyView = (View)this.ItemTemplateSelector.SelectTemplate(data, item).CreateContent();
}
else if (this.ItemTemplate != null)
{
bodyView = (View)this.ItemTemplate.CreateContent();
}
if (bodyView != null)
{
bodyView.BindingContext = data;
}
}
if (bodyView == null)
{
bodyView = new Label()
{
Text = "Body"
}
}
;
item.Content = bodyView;
#endregion
}
item.Header.SetBinding(ContentView.ControlTemplateProperty, new Binding(nameof(this.TabControlTemplate), source: this));
item.Header.SetBinding(View.WidthRequestProperty, new Binding("TabWidthRequest", source: this));
item.Header.SetBinding(View.HeightRequestProperty, new Binding("TabHeightRequest", source: this));
item.SetBinding(TabPageView.TabPositionProperty, new Binding(nameof(TabPosition), source: this));
this.SetTransition(item);
return(item);
}
