Android的NetowrkOnMainThreadException [英] Android NetowrkOnMainThreadException

问题描述

的你好！的

我尝试建立一个Android应用程序来控制无人机的Ar。
但我有一个问题，当我尝试我的设备与无人机连接。
我创建了一个线程做一个插座。但是，当我在主要活动运行它，我有一个例外： android.os.NetworkOnMainThreadException

这是我的code。与我的ThreadCmd类主题：

 字符串COMMANDE =;
字节[] cmdToByte;
串iPinString;
InetAddress类IpDrone;
DatagramSocket的ClientSocket的;
螺纹threadDecollage;
TextView的电视;
布尔政变;
DatagramPacket类sendPacketWithCmd;
私人字节[] IP = {（字节）192，（字节）168（字节）1，（字节）1};
布尔isRunning = TRUE;
私人最终静态长TIME_SLEEP = 20;
        公共无效的run（）{
            尝试{
                IpDrone = InetAddress.getByAddress（IP）;
            }赶上（E1的UnknownHostException）{
                e1.printStackTrace（）;
                政变= FALSE;
            }
            尝试{
                ClientSocket的=新的DatagramSocket（）;
            }赶上（SocketException E）{
                e.printStackTrace（）;
                政变= FALSE;
            }            而（isRunning）{
                运行控制（）;
                尝试{
                     视频下载（TIME_SLEEP）;
                     }赶上（InterruptedException的E）{
                         e.printStackTrace（）;
                    }
            }        }
            公共无效的运行控制（）{    COMMANDE =AT * REF = 1,290717696＆LT; LF＆gt;对于* REF = 2,290717952＆LT; LF＆gt;对于* REF = 3,290717696＆LT; LF＆gt;中;
          cmdToByte = commande.getBytes（）;
            尝试{                sendPacketWithCmd =新的DatagramPacket（cmdToByte，cmdToByte.length，IpDrone，5556）;
                clientSocket.send（sendPacketWithCmd）;
            }赶上（IOException异常五）{
                e.printStackTrace（）;
                政变= FALSE;
            }
            政变= TRUE;
            isRunning = FALSE;
            }
            公共布尔retourneetat（）{
                返回政变;
            }
 

在后的主要活动：

  Threadcmd TC =新Threadcmd（）;
 tc.run（）;
 

我没有看到我的错误，所以我问你，如果你能帮助我！ （我不会忘记的权限）

PS：请原谅我的英语：）

解决方案

  tc.run（）;
 

这是你的问题。在这里，您调用相同的线程上的run（）方法。

为了真正开始一个新的线程，通话
tc.start（）;

Hi !!

I try to build an Android Application to control the Ar drone. But i have a problem when i try to connect my device with the drone. I created a Thread to do a socket. But when i run it in the main activity i have a exception : android.os.NetworkOnMainThreadException .

This is my code with my Thread in ThreadCmd class:

String commande="";
byte[] cmdToByte;
String iPinString;
InetAddress IpDrone;
DatagramSocket clientSocket;
Thread threadDecollage;
TextView tv ;
boolean etat;
DatagramPacket sendPacketWithCmd;
private byte[] ip = {(byte)192, (byte)168, (byte)1, (byte)1 };
boolean isRunning = true;
private final static long TIME_SLEEP= 20;


        public void run() {         


            try {
                IpDrone = InetAddress.getByAddress(ip);
            } catch (UnknownHostException e1) {
                e1.printStackTrace();
                etat = false;
            }


            try {
                clientSocket = new DatagramSocket();
            } catch (SocketException e) {
                e.printStackTrace();
                etat = false;
            }

            while(isRunning){
                runControl();
                try {
                     Thread.sleep(TIME_SLEEP);
                     } catch (InterruptedException e) {
                         e.printStackTrace();
                    }
            }

        }
            public void runControl(){



    commande ="AT*REF=1,290717696<LF>AT*REF=2,290717952<LF>AT*REF=3,290717696<LF>";




          cmdToByte = commande.getBytes();


            try {

                sendPacketWithCmd = new DatagramPacket(cmdToByte,cmdToByte.length,IpDrone,5556);                    
                clientSocket.send(sendPacketWithCmd);
            } catch (IOException e) {
                e.printStackTrace();
                etat = false;
            }
            etat = true;
            isRunning=false;
            }


            public boolean retourneetat(){
                return etat;
            }

After in the main activity :

 Threadcmd tc = new Threadcmd();
 tc.run(); 

I dont see my error so i ask to you if you can help me !! ( i don't forget the permission)

ps: please excuse my english :)

解决方案

tc.run(); 

This is your problem. Here you call the run() method on the same thread.

In order to actually start a new thread, call tc.start();

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