Android实时获得经纬度，发送给c++服务端
16lz
2021-01-23
Android 客户端：
package com.example.admin.gpsget;import android.Manifest;import android.content.Context;import android.content.pm.PackageManager;import android.location.Location;import android.location.LocationListener;import android.location.LocationManager;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.EditText;import android.widget.Button;import android.widget.Toast;import android.view.View;import java.io.IOException;import java.io.PrintStream;import java.net.Socket;import java.net.UnknownHostException;import java.util.Timer;import java.util.TimerTask;import android.os.AsyncTask;import android.os.Bundle;import android.os.Handler;import android.os.HandlerThread;import android.os.Message;import static java.lang.Thread.sleep;import java.util.Timer;import java.util.TimerTask;public class MainActivity extends AppCompatActivity implements Runnable{ private LocationManager locationManager; private final String SERVER_HOST_IP = "10.41.239.240"; /* 服务器端口 */ private final int SERVER_HOST_PORT = 9400; private Button btnConnect; private Button btnSend; private EditText show; private Socket socket; private PrintStream output; private Thread thread; public void toastText(String message) { Toast.makeText(this, message, Toast.LENGTH_LONG).show(); } public void handleException(Exception e, String prefix) { e.printStackTrace(); toastText(prefix + e.toString()); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); // 获取系统LocationManager服务 locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); // 从GPS获取最近的定位信息 Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); updateView(location); // 将location里的位置信息显示在EditText中 /* 设置每2秒获取一次GPS的定位信息 */ locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000, 1, new LocationListener() { @Override public void onLocationChanged(Location location) { // 当GPS定位信息发生改变时，更新位置 updateView(location); } @Override public void onProviderDisabled(String provider) { updateView(null); } @Override public void onProviderEnabled(String provider) { // 当GPS LocationProvider可用时，更新位置 updateView(locationManager.getLastKnownLocation(provider)); } @Override public void onStatusChanged(String provider, int status, Bundle extras) { } }); thread=new Thread(this); thread.start(); btnConnect.setOnClickListener(new Button.OnClickListener() { @Override public void onClick(View v) { // initClientSocket(); } }); btnSend.setOnClickListener(new Button.OnClickListener() { @Override public void onClick(View v) { sendMessage(show.getText().toString()); } }); } private void updateView(Location location) { if (location != null) { StringBuffer sb = new StringBuffer(); sb.append("position: \nlat:"); sb.append(location.getLongitude()); sb.append("\nlng:"); sb.append(location.getLatitude()); sb.append("\nhight:"); sb.append(location.getAltitude()); sb.append("\nspeed:"); sb.append(location.getSpeed()); sb.append("\ndirection:"); sb.append(location.getBearing()); sb.append("\njingdu:"); sb.append(location.getAccuracy()); sb.append("\n"); show.setText(sb.toString()); } else { // 如果传入的Location对象为空则随便显示点东西 show.setText("juygfugf"); } } public void initView() { btnConnect = (Button)findViewById(R.id.btnConnect); btnSend = (Button)findViewById(R.id.btnSend); show = (EditText) findViewById(R.id.editText); btnSend.setEnabled(false); show.setEnabled(false); } public void closeSocket() { try { output.close(); socket.close(); } catch (IOException e) { handleException(e, "close exception: "); } } private void initClientSocket() { try { /* 连接服务器 */ socket = new Socket(SERVER_HOST_IP, SERVER_HOST_PORT); /* 获取输出流 */ output = new PrintStream(socket.getOutputStream(), true, "utf-8"); btnConnect.setEnabled(false); btnSend.setEnabled(true); } catch (UnknownHostException e) { handleException(e, "unknown host exception: " + e.toString()); } catch (IOException e) { handleException(e, "io exception: " + e.toString()); } } private void sendMessage(String msg) { output.print(msg); } @Override public void run() { initClientSocket(); while (true) { try { Thread.currentThread().sleep(5000); } catch (InterruptedException e) { e.printStackTrace(); } sendMessage(show.getText().toString()); } }} AndroidManifest.xml添加：
界面如下：
c++服务端：
#include#include #include #pragma comment(lib,"ws2_32.lib")int main(int argc,char *argv[]){ short port; port=9400; WSADATA wsa; if (WSAStartup(MAKEWORD(2,2),&wsa)!=0) { printf("socket init error"); exit(-1); } SOCKET serverSocket; if((serverSocket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==INVALID_SOCKET) { printf("创建套接字失败！"); exit(-1); } struct sockaddr_in serverAddress; memset(&serverAddress,0,sizeof(sockaddr_in)); serverAddress.sin_family=AF_INET; serverAddress.sin_addr.S_un.S_addr=htonl(INADDR_ANY); serverAddress.sin_port=htons(port); if (bind(serverSocket,(sockaddr*)&serverAddress,sizeof(serverAddress))==SOCKET_ERROR) { printf("socket port error:%d",port); exit(-1); } if (listen(serverSocket,SOMAXCONN)==SOCKET_ERROR) { printf("listen error"); exit(-1); } printf("Server 9400 is listening......\n"); SOCKET clientSocket; struct sockaddr_in clientAddress; memset(&clientAddress,0,sizeof(clientAddress)); int addrlen=sizeof(clientAddress); if ((clientSocket=accept(serverSocket,(sockaddr*)&clientAddress,&addrlen))==INVALID_SOCKET) { printf("link error"); exit(-1); } char buf[4096]; while (1) { int bytes=recv(clientSocket,buf,sizeof(buf),0); /* if ((bytes=recv(clientSocket,buf,sizeof(buf),0))==SOCKET_ERROR) { printf("data error"); exit(-1); }*/ buf[bytes]='\0'; printf("Message from %s:\n %s\n",inet_ntoa(clientAddress.sin_addr),buf); // if(send(clientSocket,buf,bytes,0)==SOCKET_ERROR) // { // printf("发送数据失败！"); //// exit(-1); // } } WSACleanup(); exit(-1);}
转载于:https://www.cnblogs.com/tiandsp/p/7440502.html
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