Xamarin iOS隐藏搜索栏中的取消按钮
问题描述:
我想在我的iOS搜索栏中隐藏“取消”按钮。我已经实现了下面的自定义渲染器代码,但它似乎不工作。如果有人知道解决方案,请分享。Xamarin iOS隐藏搜索栏中的取消按钮
public class iOSSearchBar : SearchBarRenderer
{
protected override void OnElementChanged(ElementChangedEventArgs<SearchBar> args)
{
base.OnElementChanged(args);
UISearchBar bar = (UISearchBar)this.Control;
bar.AutocapitalizationType = UITextAutocapitalizationType.None;
bar.AutocorrectionType = UITextAutocorrectionType.No;
//bar.BarStyle = UIBarStyle.Default;
//bar.BarTintColor = UIColor.LightGray;
//bar.KeyboardType = UIKeyboardType.ASCIICapable;
bar.SearchBarStyle = UISearchBarStyle.Minimal;
bar.SetShowsCancelButton(false, false);
bar.ShowsCancelButton = false;
}
}
在此先感谢
答
我想我设法与手动删除它:
protected override void OnElementChanged(ElementChangedEventArgs<SearchBar> e)
{
base.OnElementChanged(e);
if (Control != null)
{
Control.Subviews[0].Subviews[0].RemoveFromSuperview();
}
}
答
编写代码隐藏在layoutsubviews方法取消按钮。
public override void LayoutSubviews()
{
base.LayoutSubviews();
UISearchBar bar = (UISearchBar)this.Control;
bar.ShowsCancelButton = false;
}
下面的内容也是工作还是我,没有需要继承搜索:
SearchBar.TextChanged += delegate
{
SearchBar.ShowsCancelButton = false;
};
答
这为我工作。 https://gist.github.com/xleon/9f94a8482162460ceaf9
using System;
using Xamarin.Forms.Platform.iOS;
using Xamarin.Forms;
using UIKit;
using System.Diagnostics;
[assembly: ExportRenderer(typeof(SearchBar), typeof(Namespace.iOS.Renderers.ExtendedSearchBarRenderer))]
namespace Namespace.iOS.Renderers
{
public class ExtendedSearchBarRenderer : SearchBarRenderer
{
protected override void OnElementPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
if (e.PropertyName == "Text")
{
Control.ShowsCancelButton = false;
}
}
}
}
不幸运!已经尝试过 – user3421325