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Android Socket 线程连接openwrt与arduino单片机串口双向通信的实例解析

2019年07月24日  | 移动技术网IT编程  | 我要评论

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废话不多说了，直接给大家贴代码了，具体代码如下所示：

package zcd.netanything;
import java.io.bufferedreader;
import java.io.inputstreamreader;
import java.io.printwriter;
import java.net.socket;
import android.app.fragment;
import android.content.broadcastreceiver;
import android.content.context;
import android.content.intent;
import android.os.bundle;
import android.os.handler;
import android.os.message;
import android.view.layoutinflater;
import android.view.view;
import android.view.view.onclicklistener;
import android.view.viewgroup;
import android.widget.toast;
public class mycar extends fragment implements onclicklistener{
private static string wifiurl;
private static string wificom;
private static string wificamera;
private thread mthreadclient = null;
private socket msocketclient = null;
//视频线程
private thread mthreadvideo = null;
private string recvmessageclient ;
//mysurfaceview r;
private boolean isconnect=false; 
//指令发出 数据缓存
static printwriter mprintwriterclient = null;
static bufferedreader mbufferedreaderclient = null;
public view oncreateview(layoutinflater inflater, viewgroup container,
bundle savedinstancestate) {
// todo auto-generated method stub
view view = inflater.inflate(r.layout.mycar,container, false);
view.findviewbyid(r.id.button1).setonclicklistener(this);
view.findviewbyid(r.id.button2).setonclicklistener(this);
view.findviewbyid(r.id.button3).setonclicklistener(this);
view.findviewbyid(r.id.button4).setonclicklistener(this);
view.findviewbyid(r.id.button5).setonclicklistener(this);
return view;
}
public void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
}
//内部类 广播接收
public static class myreceiver extends broadcastreceiver {
@override
public void onreceive(context context, intent intent) {
// todo auto-generated method stub
wifiurl = intent.getstringextra("wifiurl");
wificom = intent.getstringextra("wificom");
wificamera = intent.getstringextra("wificamera");
toast.maketext(context, "广播已经接收", toast.length_short).show();
}
}
//来源 http://www.cnblogs.com/xiaobo-linux/ 赵存档 qq463431476 
//线程mrunnable启动
private runnable mrunnable = new runnable() 
{
public void run()
{
try 
{ 
//连接服务器
msocketclient = new socket(wifiurl,integer.parseint(wificom)); 
//取得输入、输出流
mbufferedreaderclient = new bufferedreader(new inputstreamreader(msocketclient.getinputstream()));
mprintwriterclient = new printwriter(msocketclient.getoutputstream(), true);
recvmessageclient = "wifi成功连接";//消息换行
message msg = new message();
msg.what = 1;
mhandler.sendmessage(msg); 
}
catch (exception e) 
{
recvmessageclient = "连接错误！";//消息换行
message msg = new message();
msg.what = 1;
mhandler.sendmessage(msg);
return;
} 
setrecvmessage();
}
};
public void setrecvmessage(){ 
char[] buffer = new char[256];
int count = 0;
while (true)
{
try
{
if((count = mbufferedreaderclient.read(buffer))>0)
{ 
recvmessageclient = getinfobuff(buffer, count);//消息换行
//thread.sleep(500);
message msg = new message();
msg.what = 1;
mhandler.sendmessage(msg); 
//toast.maketext(getactivity(),recvmessageclient,toast.length_short).show();
}
}
catch (exception e)
{
recvmessageclient = "接收异常:" + e.getmessage() + "\n";//消息换行
message msg = new message();
msg.what = 0;
mhandler.sendmessage(msg);
}
}
}
handler mhandler = new handler()
{ 
public void handlemessage(message msg) 
{ 
super.handlemessage(msg); 
if(msg.what == 0)
{
toast.maketext(getactivity(),recvmessageclient,toast.length_short).show();//刷新消息机制
}
else if(msg.what == 1)
{
try
{
string result = recvmessageclient;
toast.maketext(getactivity(),result,toast.length_short).show(); 
}catch(exception e)
{
//toast.maketext(getactivity(),"无法获取数据，检查网络是否连接！",toast.length_short).show();//刷新消息机制
}
}
} 
};
//接收处理
private string getinfobuff(char[] buff, int count)
{
char[] temp = new char[count];
for(int i=0; i<count; i++)
{
temp[i] = buff[i];
} 
return new string(temp);
}
/*public void ondestroy() {
super.ondestroy();
if (isconnect) 
{ 
isconnect = false;
try {
if(msocketclient!=null)
{
msocketclient.close();
msocketclient = null;
//mthreadvideo.destroy();
mprintwriterclient.close();
mprintwriterclient = null;
recvmessageclient = "网络端口成功";//消息换行
message msg = new message();
msg.what = 0;
mhandler.sendmessage(msg);
}
} catch (ioexception e) {
e.printstacktrace();
}
mthreadclient.interrupt();
}
}
*/
public void onclick(view v) {
// todo auto-generated method stub
switch(v.getid()){
case r.id.button1:
mprintwriterclient.print("f");
mprintwriterclient.flush();//清空
toast.maketext(getactivity(),"前进",toast.length_short).show();
break;
case r.id.button2:
mprintwriterclient.print("b");
mprintwriterclient.flush();
toast.maketext(getactivity(),"后退",toast.length_short).show();
break;
case r.id.button3:
mprintwriterclient.print("l");
mprintwriterclient.flush();
toast.maketext(getactivity(),"向左",toast.length_short).show();
break;
case r.id.button4:
mprintwriterclient.print("r");
mprintwriterclient.flush(); 
toast.maketext(getactivity(),"向右",toast.length_short).show();
break;
case r.id.button5:
if(!isconnect)
{
//开启mthreadclient线程
mthreadclient = new thread(mrunnable);
mthreadclient.start(); 
toast.maketext(getactivity(),"尝试连接网络",500).show();
}
else {
ondestroy();
isconnect=false;
// btn_openwifi.setbackgroundresource(r.drawable.disconnect);
}
//开启mthreadvideo线程
//mthreadvideo = new thread(mrunvideo);
//mthreadvideo.start();//开启视频监听
break;
//case r.id.button6:
//关闭wifi
/* if (isconnect) 
{ 
isconnect = false;
try {
if(msocketclient!=null)
{
msocketclient.close();
msocketclient = null;
//mthreadvideo.destroy();
mprintwriterclient.close();
mprintwriterclient = null;
recvmessageclient = "网络端口成功";//消息换行
message msg = new message();
msg.what = 0;
mhandler.sendmessage(msg);
}
} catch (ioexception e) {
e.printstacktrace();
}
mthreadclient.interrupt();
}
*/
// break;
}
} 
}

以上所述是小编给大家介绍的android socket 线程连接openwrt与arduino单片机串口双向通信，希望对大家有所帮助

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