我将一个字符串从 android 发送到 C# 并从 C# 发送到 android 它适用于模拟器但不适用于真正的 android 设备
我的手机使用的是安卓 2.3
这是我在 Android 上的代码：
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
hienthi_lv_tab2 = (ListView) findViewById(R.id.lvhienthi);
chuoi = (EditText) findViewById(R.id.string);
ipserver = (EditText) findViewById(R.id.ipserver);
txt = (TextView) findViewById(R.id.Show);
quit = (Button) findViewById(R.id.quit);
connect = (Button) findViewById(R.id.Connect);
send = (Button) findViewById(R.id.Send);
quit.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
finish();
}
});
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
OUT_message = chuoi.getText().toString();
new Thread(new Runnable() {
final Handler handler = new Handler();
final Runnable updateUI2 = new Runnable() {
public void run() {
// TODO Auto-generated method stub
OUT_message = "Android: " + OUT_message;
add_chuoi(OUT_message);
}
};
public void run() {
// TODO Auto-generated method stub
PrintWriter out;
try {
out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(s.getOutputStream())), true);
out.println(OUT_message);
out.flush();
handler.post(updateUI2);
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}).start();
Thread C_thread = new Thread(new ClientThread());
C_thread.start();
}
});
connect.setVisibility(1);
connect.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
connect.setVisibility(v.GONE);
Thread C_thread = new Thread(new ClientThread());
C_thread.start();
}
});
}
public class ClientThread implements Runnable {
final Handler handler = new Handler();
final Runnable updateUI = new Runnable() {
public void run() {
// TODO Auto-generated method stub
txt.setText(IN_message);
IN_message = "Server: " + IN_message;
add_chuoi(IN_message);
}
};
public void run() {
// TODO Auto-generated method stub
try {
IP = ipserver.getText().toString();
serverAddr = InetAddress.getByName(IP);
state_connnect = true;
Scanner in;
while (state_connnect) {
s = new Socket(serverAddr, 4444);
in = new Scanner(s.getInputStream());
IN_message = in.nextLine();
handler.post(updateUI);
in.close();
s.close();
}
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public void add_chuoi(String chuoi) {
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, array_operator);
array_operator.add(chuoi);
hienthi_lv_tab2.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
}
这是我在 C# 上的代码：
private void Form1_Load(object sender, EventArgs e)
{
CheckForIllegalCrossThreadCalls = false;
String hostname = "";
System.Net.IPHostEntry ip = new IPHostEntry();
hostname = System.Net.Dns.GetHostName();
ip = System.Net.Dns.GetHostByName(hostname);
lblhostname.Text = "Tên Server : " + ip.HostName;
foreach (System.Net.IPAddress listip in ip.AddressList)
{
lblip.Text ="Địa Chỉ IP Server : "+listip.ToString();
IPAddress ipAd = IPAddress.Parse(listip.ToString());
myList = new TcpListener(ipAd, 4444);
myList.Start();
}
}
void connect()
{
txt_show.Text="Waitting for connect from android...";
while (true)
{
server_socket = myList.AcceptSocket();
byte[] data_rec = new byte[1024];
int k = server_socket.Receive(data_rec);
char cc;
String mes = null;
for (int i = 0; i < k - 1; i++)
{
cc = Convert.ToChar(data_rec[i]);
mes += cc.ToString();
}
if (mes != null)
{
string_rec = mes.ToString();
txt_show.Text += Environment.NewLine + "Android: " + mes;
}
}
}
private void btn_send_Click(object sender, EventArgs e)
{
String data_send = txt_send.Text;
ASCIIEncoding asen = new ASCIIEncoding();
server_socket.Send(asen.GetBytes(data_send));
txt_show.Text += Environment.NewLine + "Server : " + txt_send.Text;
txt_send.Text = "";
}
private void button1_Click(object sender, EventArgs e)
{
S_thread = new Thread(connect);
S_thread.Start();
}
这是logcat：
FATAL EXCEPTION:Thread-10 java.util.NoSuchElementException
at java.util.Scanner.nextLine(Scanner.java:1417)
at iNET.Android.Thread_TCP.ThreadActivity$ClientThread.run(ThreadActivity.java:207)
at java.lang.Thread.run(Thread.java:1019)
谢谢大家！