如题
```package com.example.etz1_3.myapplication;
import android.content.Context;
import android.net.nsd.NsdManager;
import android.net.nsd.NsdServiceInfo;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import java.net.ServerSocket;
import java.util.List;
public class FibndService2 {
NsdManager.RegistrationListener nsRegListener;
NsdManager.DiscoveryListener nsDicListener;
NsdManager.ResolveListener nsResolveListener;
Context context;
NsdManager nsdManager;
List beans;
MyAdapter adapter;
ad a;
public FibndService2(Context context){
this.context = context;
}
public FibndService2(Context context, List beans,MyAdapter adapter){
this.context = context;
this.beans = beans;
this.adapter = adapter;
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public void registerService() {
// 注意：注册网络服务时不要对端口进行硬编码，通过如下这种方式为你的网络服务获取
// 一个可用的端口号.
int port = 0;
try {
ServerSocket sock = new ServerSocket(0);
port = sock.getLocalPort();
sock.close();
} catch (Exception e) {
Toast.makeText(context, "can not set port", Toast.LENGTH_SHORT);
}
// 注册网络服务的名称、类型、端口
NsdServiceInfo nsdServiceInfo = new NsdServiceInfo();
nsdServiceInfo.setServiceName("NSD_Test_Program");
nsdServiceInfo.setServiceType("_ipp._tcp");
nsdServiceInfo.setPort(port);
// 实现一个网络服务的注册事件监听器，监听器的对象应该保存起来以便之后进行注销
nsRegListener = new NsdManager.RegistrationListener() {
@Override
public void onUnregistrationFailed(NsdServiceInfo arg0, int arg1) {
Toast.makeText(context, "Unregistration Failed", Toast.LENGTH_SHORT).show();
}
@Override
public void onServiceUnregistered(NsdServiceInfo arg0) {
Toast.makeText(context, "Service Unregistered", Toast.LENGTH_SHORT).show();
}
@Override
public void onServiceRegistered(NsdServiceInfo arg0) {
Toast.makeText(context, "Service Registered", Toast.LENGTH_SHORT).show();
}
@Override
public void onRegistrationFailed(NsdServiceInfo arg0, int arg1) {
Toast.makeText(context, "Registration Failed", Toast.LENGTH_SHORT).show();
}
};
// 获取系统网络服务管理器，准备之后进行注册
nsdManager = (NsdManager) context.getSystemService(Context.NSD_SERVICE);
nsdManager.registerService(nsdServiceInfo, NsdManager.PROTOCOL_DNS_SD, nsRegListener);
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public void discoverService() {
nsdManager = (NsdManager) context.getSystemService(Context.NSD_SERVICE);
nsDicListener = new NsdManager.DiscoveryListener() {
@Override
public void onStopDiscoveryFailed(String serviceType, int errorCode) {
Toast.makeText(context, "Stop Discovery Failed", Toast.LENGTH_SHORT).show();
}
@Override
public void onStartDiscoveryFailed(String serviceType, int errorCode) {
Toast.makeText(context,
"Start Discovery Failed", Toast.LENGTH_SHORT).show();
}
@Override
public void onServiceLost(NsdServiceInfo serviceInfo) {
Toast.makeText(context, "Service Lost", Toast.LENGTH_SHORT).show();
}
@Override
public void onServiceFound(NsdServiceInfo serviceInfo) {
// 发现网络服务时就会触发该事件
// 可以通过switch或if获取那些你真正关心的服务
Toast.makeText(context, "Service Found", Toast.LENGTH_SHORT).show();
nsdManager.resolveService(serviceInfo,nsResolveListener);
}
@Override
public void onDiscoveryStopped(String serviceType) {
Toast.makeText(context, "Discovery Stopped", Toast.LENGTH_SHORT).show();
}
@Override
public void onDiscoveryStarted(String serviceType) {
Toast.makeText(context, "Discovery Started", Toast.LENGTH_SHORT).show();
}
};
//NsdManager nsdManager = (NsdManager) context.getSystemService(Context.NSD_SERVICE);
nsdManager.discoverServices("_ipp._tcp", NsdManager.PROTOCOL_DNS_SD,nsDicListener);
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public void initResolveListener() {
nsResolveListener = new NsdManager.ResolveListener() {
@Override
public void onServiceResolved(NsdServiceInfo arg0) {
// 可以再这里获取相应网络服务的地址及端口信息，然后决定是否要与之建立连接。
// 之后就是一些socket操作了
Bean bean = new Bean();
bean.setName(arg0.getServiceName());
bean.setIp(arg0.getHost()+"");
bean.setPort(arg0.getPort()+"");
beans.add(bean);
a.not();
Log.e("@lie",arg0.toString());
}
@Override
public void onResolveFailed(NsdServiceInfo arg0, int arg1) {
Toast.makeText(context, "onResolveFailed", Toast.LENGTH_SHORT).show();
}
};
}
public void setad(ad a){
this.a = a;
}
interface ad{
public void not();
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public void unregisterService() {
nsdManager.stopServiceDiscovery(nsDicListener); // 关闭网络发现
}
}
