/// <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);
}
}
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);
}
}
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);
}
}
/// <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);
}
