我遇到的第一个问题是没有IDNSListener类可供参考.所以我在那里添加了一个部分界面.我有它需要的函数void updateRecord(DNSCache dnsCache,现在很久,DNSEntry记录);注释掉,因为它会抱怨无法引用DNSCache或DNSEntry. (我相信我删除了DNSCache,这就是为什么)
不确定我做的一些事情是不是很糟糕,只是删除节点以使其编译.对于instnace.
我添加了这个以删除以下错误.
E:\Users\brads_000\Documents\GitHub\ytn3rd\monodroid-bindings\JmDNS\bindings\obj\Debug\generated\src\Javax.Jmdns.Impl.JmDNSImpl.cs(24,24):
Error CS0738: ‘Javax.Jmdns.Impl.JmDNSImpl.SubTypeEntry’ does not
implement interface member ‘Java.Util.IMapEntry.Key’.
‘Javax.Jmdns.Impl.JmDNSImpl.SubTypeEntry.Key’ cannot implement
‘Java.Util.IMapEntry.Key’ because it does not have the matching return
type of ‘Java.Lang.Object’. (CS0738) (JmDNS-Bindings)
E:\Users\brads_000\Documents\GitHub\ytn3rd\monodroid-bindings\JmDNS\bindings\obj\Debug\generated\src\Javax.Jmdns.Impl.JmDNSImpl.cs(24,24):
Error CS0738: ‘Javax.Jmdns.Impl.JmDNSImpl.SubTypeEntry’ does not
implement interface member ‘Java.Util.IMapEntry.Value’.
‘Javax.Jmdns.Impl.JmDNSImpl.SubTypeEntry.Value’ cannot implement
‘Java.Util.IMapEntry.Value’ because it does not have the matching
return type of ‘Java.Lang.Object’. (CS0738) (JmDNS-Bindings)
问题来自Java.Util.IMapEntry类.我认为正确的操作是创建我自己的parital SubEntryType然后覆盖字符串Key属性但它不会捡起它.我的下一次尝试就是这样做.
Java.Lang.Object
E:\Users\brads_000\Documents\GitHub\ytn3rd\monodroid-bindings\JmDNS\bindings\obj\Debug\generated\src\Javax.Jmdns.Impl.JmDNSImpl.cs(12,12):
Error CS1502: The best overloaded method match for
‘Android.Runtime.JNIEnv.NewString(string)’ has some invalid arguments
(CS1502) (JmDNS-Bindings)
static IntPtr n_GetKey (IntPtr jnienv,IntPtr native__this)
{
global::Javax.Jmdns.Impl.JmDNSImpl.SubTypeEntry __this = global::Java.Lang.Object.GetObject<global::Javax.Jmdns.Impl.JmDNSImpl.SubTypeEntry> (jnienv,native__this,JniHandleOwnership.DoNotTransfer);
return JNIEnv.NewString (__this.Key);
}
namespace Javax.Jmdns.Impl
{
public partial class SubTypeEntry
{
static IntPtr n_GetKey (IntPtr jnienv,IntPtr native__this)
{
global::Javax.Jmdns.Impl.JmDNSImpl.SubTypeEntry __this = global::Java.Lang.Object.GetObject<global::Javax.Jmdns.Impl.JmDNSImpl.SubTypeEntry> (jnienv,JniHandleOwnership.DoNotTransfer);
return JNIEnv.NewString(__this.Key.ToString());
}
}
}
但同样,它不想选择这种新方法.
我删除了javax.jmdns.impl.DNSCache因为与上面的键/值相同的错误,
E:\Users\brads_000\Documents\GitHub\ytn3rd\monodroid-bindings\JmDNS\bindings\obj\Debug\generated\src\Javax.Jmdns.Impl.DNSCache.cs(95,95):
Error CS0508: ‘Javax.Jmdns.Impl.DNSCache.EntrySet()’: return type must
be ‘System.Collections.ICollection’ to match overridden member
‘Java.Util.AbstractMap.EntrySet()’ (CS0508) (JmDNS-Bindings)
我似乎已经解决了这个问题
System.Collections.ICollection
即使它已经回归了.
public override global :: System.Collections.Generic.ICollection EntrySet()
无论如何,任何帮助将不胜感激,以获得这个真棒库和运行:)
解决方法
1.从jmdns-3.4.1源代码重建jar文件.使DNSListener接口公开.删除测试包.然后导出源以获取更新的jar文件.
2.更新从步骤1创建的jar文件.确保将构建操作更新为EmbededJar.
3.EnumMethods.xml
<enum-method-mappings>
<mapping jni-class="javax/jmdns/impl/DNSCache">
<method jni-name="entrySet" parameter="return" clr-enum-type="System.Collections.ICollection" />
</mapping>
<mapping jni-class="javax/jmdns/impl/DNSCache._CacheEntry">
<method jni-name="getKey" parameter="return" clr-enum-type="Java.Lang.Object" />
</mapping>
<mapping jni-class="javax/jmdns/impl/DNSCache._CacheEntry">
<method jni-name="getValue" parameter="return" clr-enum-type="Java.Lang.Object" />
</mapping>
<mapping jni-class="javax/jmdns/impl/JmDNSImpl.ServiceTypeEntry.SubTypeEntry">
<method jni-name="getKey" parameter="return" clr-enum-type="Java.Lang.Object" />
</mapping>
<mapping jni-class="javax/jmdns/impl/JmDNSImpl.ServiceTypeEntry.SubTypeEntry">
<method jni-name="getValue" parameter="return" clr-enum-type="Java.Lang.Object" />
</mapping>
<mapping jni-class="javax/jmdns/impl/JmDNSImpl.ServiceTypeEntry">
<method jni-name="entrySet" parameter="return" clr-enum-type="System.Collections.ICollection" />
</mapping>
</enum-method-mappings>
4.在您的示例应用程序中,您必须再添加一个权限android.permission.ACCESS_WIFI_STATE.
5.此外,所有网络操作都应该从后台线程执行,并在主线程中通知UI.因此,相应地更新您的MainActivity类.
希望这可以帮助您正确地创建构建.示例代码的工作副本在此处上载https://github.com/Hitangshu/JmDNS_Xamarin_Library
