android手机通过蓝牙和蓝牙打印机建立连接

private Button trans = null;
private BluetoothAdapter mBluetoothAdapter=null;
private int mState;
// Constants that indicate the current connection state
// Either not ready or already connected. Terminate new socket.
try {
socket.close();
} catch (IOException e) {
Log.e(TAG, "Could not close unwanted socket", e);
private final BluetoothServerSocket mmServerSocket;
public AcceptThread() {
BluetoothServerSocket tmp = null;
// Create a new listening server socket
private final BluetoothSocket mmSocket;
private final InputStream mmInStream;
private final OutputStream mmOutStream;
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (REQUEST_ENABLE_BT == requestCode) {
if (resultCode == RESULT_OK) {
}
break;
}
}
}
}
if (D) Log.i(TAG, "END mAcceptThread");
}
public void cancel() {
if (D) Log.d(TAG, "cancel " + this);
try {
mmServerSocket.close();
// successful connection or an exception
socket = mmServerSocket.accept();
} catch (IOException e) {
Log.e(TAG, "accept() failed", e);
break;
private static final boolean D = true;
protected static final int REQUEST_ENABLE_BT = 0;
private Button open = null;
private Button find = null;
private Button conn = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(yout.main);
// user open bluetooth
// mBluetoothAdapter.startDiscovery();
} else {
// user not open bluetooth
}
}
}
private class ConnectedThread extends Thread {
android手机 通过蓝牙怎么和蓝牙打印机建立连接啊 ！
package com.ea.test;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.UUID;
}
// If a connection was ll) {
synchronized (Bluetooth_one.this) {
switch (mState) {
case STATE_LISTEN:
case STATE_CONNECTING:
open = (Button) findViewById(R.id.open);
find = (Button) findViewById(R.id.find);
conn = (Button) findViewById(R.id.conn);
trans = (Button) findViewById(R.id.trans);
}
mmServerSocket = tmp;
}
public void run() {
if (D) Log.d(TAG, "BEGIN mAcceptThread" + this);
setName("AcceptThread");
BluetoothSocket socket = null;
public static final int STATE_NONE = 0; // we're doing nothing
public static final int STATE_LISTEN = 1; // now listening for incoming connections
public static final int STATE_CONNECTING = 2; // now initiating an outgoing connection
new AcceptThread().start();
}
});
conn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
addLisenner();
}
public void addLisenner() {
open.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
// Listen to the server socket if we're not connected
while (mState != STATE_CONNECTED) {
try {
// This is a blocking call and will only return on a
try {
tmp = mBluetoothAdapter.listenUsingRfcommWithServiceRecord("ddd", MY_UUID);
} catch (IOException e) {
Log.e(TAG, "listen() failed", e);
public static final int STATE_CONNECTED = 3; // now connected to a remote device
// Unique UUID for this application
private static final UUID MY_UUID = UUID.fromString("fa87c0d0-afac-11de-8a39-0800200c9a66");
REQUEST_ENABLE_BT);
}else{
}
}
}
});
find.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
mBluetoothAdapter = BluetoothAdapter
.getDefaultAdapter();
if (mBluetoothAdapter == null) {
// Device does not support Bluetooth
showDialog(R.string.no_support);
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothServerSocket;
* like a server-side client. It runs until a connection is accepted
* (or until cancelled).
*/