也不是不可能,但需要一些肮脏的编码:
请在此处检查解决方案
回顾一下:
要在 IOS 上强制布局 RTL 和 LTR:
1-创建此类/服务
using System;
using System.IO;
using Xamarin.Forms;
using yourproject.iOS;
using yourproject.database;
using ObjCRuntime;
using System.Runtime.InteropServices;
using UIKit;
using System.Diagnostics;
[assembly: Dependency(typeof(PathManager_IOS))]
namespace yourproject.iOS
{
public class PathManager_IOS : IPathManager
{
[DllImport(ObjCRuntime.Constants.ObjectiveCLibrary, EntryPoint = "objc_msgSend")]
internal extern static IntPtr IntPtr_objc_msgSend(IntPtr receiver, IntPtr selector, UISemanticContentAttribute arg1);
public PathManager_IOS()
{
}
public void SetLayoutRTL()
{
try
{
Selector selector = new Selector("setSemanticContentAttribute:");
IntPtr_objc_msgSend(UIView.Appearance.Handle, selector.Handle, UISemanticContentAttribute.ForceRightToLeft);
}
catch (Exception s)
{
Debug.WriteLine("failed to set layout...."+s.Message.ToString());
}
}
public void SetLayoutLTR()
{
try
{
Selector selector = new Selector("setSemanticContentAttribute:");
IntPtr_objc_msgSend(UIView.Appearance.Handle, selector.Handle, UISemanticContentAttribute.ForceLeftToRight);
}
catch (Exception s)
{
Debug.WriteLine("failed to set layout...." + s.Message.ToString());
}
}
}
}
ps:请将“yourproject”更改为您的项目名称...
在启动时调用此方法
在 AppDelegate.cs 中
PathManager_IOS pathManager = new PathManager_IOS();
if (lang == 3)
{
pathManager.SetLayoutRTL();/* RTL */
}
if (lang == 1||lang == 2)
{
pathManager.SetLayoutLTR();/* LTR */
}
LoadApplication(new App(m, lang));
从 PCL 共享页面或项目调用它
/* arabic */
DependencyService.Get<IPathManager>().SetLayoutRTL();
/* English */
DependencyService.Get<IPathManager>().SetLayoutLTR();
不要忘记设置语言更改时的流向
if(lang==3)
{//arabic
this.FlowDirection = FlowDirection.RightToLeft;
this.Master.FlowDirection= FlowDirection.RightToLeft;
this.Detail.FlowDirection= FlowDirection.RightToLeft;
}
希望这可以帮助!这一切都是为了那个汉堡图标!!!
干杯,
拉比赫