我试图将我的Android手机用作PC的键盘。 这是通过使用套接字创建客户端/服务器连接的本地WiFi连接完成的。
我使用textwatcher来获取editText中字符的更改，然后将这些更改发送到服务器，然后服务器使用机器人类将其写入PC。这都是在Android手机上使用软键盘。 问题是当在editText中写入时，只发送一个字符。并由服务器拿起。
e.g。我输入了Android手机＆＃34; a＆＃34;并且将在服务器上模拟相应的按键。如果我然后键入另一个字符，它不会读取该字符，但如果我删除＆＃34; a＆＃34;然后键入它将发送该字符的另一个字符。
以下是代码的客户端，即Android应用程序。
public class MainActivity extends AppCompatActivity implements View.OnKeyListener {
private final static int portNumber = ****;
private final static String hostName = "192.168.0.8";
private final static String cTest = "Connection Test";
Socket socket = null;
private static String TAG = "test";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Thread() {
@Override
public void run() {
try {
Log.i(cTest, "attempting to connect");
socket = new Socket(hostName, portNumber);
Log.i(cTest, "Connected");
runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(getBaseContext(), "Connected Successfully", Toast.LENGTH_SHORT).show();
}
});
EditText editText = (EditText)findViewById(R.id.editText);
editText.addTextChangedListener(editTextWatcher);
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
Log.e(cTest, e.getMessage());
}
}
}.start();
}
private TextWatcher editTextWatcher = new TextWatcher() {
private void sendTextToServer(String send) {
BufferedWriter bw = null;
String textChange = send;
try {
bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
bw.write(textChange);
bw.newLine();
bw.flush();
} catch (IOException e) {
}
}
public void afterTextChanged(Editable s)
{
}
public void beforeTextChanged(CharSequence s, int start, int count, int after)
{
}
public void onTextChanged(CharSequence s, int start, int before, int count)
{
Log.d(TAG, s + " Character Read");
String test = s.toString();
this.sendTextToServer(test);
}
};
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
return false;
}
}
以下代码是在eclipse中完成的服务器端代码。
public class ListenServerMain {
private static boolean ifConnected = true;
private final static int portNumber = ****;
public static String readIn;
private static Socket client = null;
private static ServerSocket server = null;
private static BufferedReader in = null;
private static Robot robot = null;
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
robot = new Robot();
server = new ServerSocket(portNumber);
System.out.println("Listening on port :****");
client = server.accept(); //loops until a client server connection is established
System.out.println("Client connected");
//Receive a message from the client
BufferedReader in = new BufferedReader(
new InputStreamReader(client.getInputStream()));
while(ifConnected)
{
readIn = in.readLine(); //reads the input received
if(readIn.equalsIgnoreCase("A"))
{
robot.keyPress(KeyEvent.VK_A);
robot.keyRelease(KeyEvent.VK_A);
}
if(readIn.equalsIgnoreCase("B"))
{
robot.keyPress(KeyEvent.VK_B);
robot.keyRelease(KeyEvent.VK_B);
}
if(readIn.equalsIgnoreCase("C"))
{
robot.keyPress(KeyEvent.VK_C);
robot.keyRelease(KeyEvent.VK_C);
}
if(readIn.equalsIgnoreCase("BS"))
{
robot.keyPress(KeyEvent.VK_DELETE);
robot.keyRelease(KeyEvent.VK_DELETE);
}
}
System.out.println("Unable to read user Input"); //if it can't read the input from the Client
System.exit(-1); //system exits
System.out.println("Server Ended");
System.exit(-1);
}
catch (IOException e) {
System.out.println("Can't open the Socket");
System.exit(-1);
}
catch (AWTException e) {
System.out.println("Unable to create Robot");
System.exit(-1);
}
}
}
有什么方法可以成功阅读并发送在editText字段中输入的每个字符？
如果有必要进一步澄清，请告诉我。
谢谢