wdj.zip_安卓 温度_安卓温度_手机 温度_温度计

package jdl.android.test; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.UUID; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothServerSocket; import android.bluetooth.BluetoothSocket; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; public class BluetoothService { //debug private final String TAG = "BluetoothService"; // Name for the SDP record when creating server socket private static final String NAME = "BluetoothTest"; //唯一的UUID，用于蓝牙连接 private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); //连接状态常量 public static final int STATE_NONE = 0; // 任何线程未启动 public static final int STATE_LISTEN = 1; // AcceptThread启动，监听并准备连接 public static final int STATE_CONNECTING = 2; // ConnectThread启动，主动连接 public static final int STATE_CONNECTED = 3; // ConnectedThread启动，已经连接完成 //成员变量 private final BluetoothAdapter mAdapter; private final Handler mHandler; private int mState; //三个线程 private AcceptThread mAcceptThread; private ConnectThread mConnectThread; private ConnectedThread mConnectedThread; public BluetoothService(Handler handler) { mAdapter = BluetoothAdapter.getDefaultAdapter(); mState = STATE_NONE; mHandler = handler; } public synchronized int getState() { return mState; } public synchronized void setState(int state) { mState = state; //返回给Activity状态改变信息 mHandler.obtainMessage(MainActivity.MESSAGE_STATE_CHANGE, state, -1).sendToTarget(); } //以下3个方法对应3个线程启动操作，stop停止所有线程 /** * Start the chat service. Specifically start AcceptThread to begin a * session in listening (server) mode. Called by the Activity onResume() */ public synchronized void start() { // Cancel any thread attempting to make a connection if (mConnectThread != null) {mConnectThread.cancel(); mConnectThread = null;} // Cancel any thread currently running a connection if (mConnectedThread != null) {mConnectedThread.cancel(); mConnectedThread = null;} // Start the thread to listen on a BluetoothServerSocket if (mAcceptThread == null) { mAcceptThread = new AcceptThread(); mAcceptThread.start(); } setState(STATE_LISTEN); } /** * Start the ConnectThread to initiate a connection to a remote device. * @param device The BluetoothDevice to connect */ public synchronized void connect(BluetoothDevice device) { // Cancel any thread attempting to make a connection if (mState == STATE_CONNECTING) { if (mConnectThread != null) {mConnectThread.cancel(); mConnectThread = null;} } // Cancel any thread currently running a connection if (mConnectedThread != null) {mConnectedThread.cancel(); mConnectedThread = null;} // Start the thread to connect with the given device mConnectThread = new ConnectThread(device); mConnectThread.start(); setState(STATE_CONNECTING); } /** * Start the ConnectedThread to begin managing a Bluetooth connection * @param socket The BluetoothSocket on which the connection was made * @param device The BluetoothDevice that has been connected */ public synchronized void connected(BluetoothSocket socket, BluetoothDevice device) { // Cancel the thread that completed the connection if (mConnectThread != null) {mConnectThread.cancel(); mConnectThread = null;} // Cancel any thread currently running a connection if (mConnectedThread != null) {mConnectedThread.cancel(); mConnectedThread = null;} // Cancel the accept thread because we only want to connect to one device if (mAcceptThread != null) {mAcceptThread.cancel(); mAcceptThread = null;} // Start the thread to manage the connection and perform transmissions mConnectedThread = new ConnectedThread(socket); mConnectedThread.start(); Log.i("thethief","ConnectdeThread is started"); // Send the name of the connected device back to the UI Activity Message msg = mHandler.obtainMessage(MainActivity.MESSAGE_DEVICE_NAME); Bundle bundle = new Bundle(); bundle.putString(MainActivity.DEVICE_NAME, device.getName()); msg.setData(bundle); mHandler.sendMessage(msg); Log.i("thethief","DEVICE_NAME msg is send"); setState(STATE_CONNECTED); } /** * Stop all threads */ public synchronized void stop() { if (mConnectThread != null) {mConnectThread.cancel(); mConnectThread = null;} if (mConnectedThread != null) {mConnectedThread.cancel(); mConnectedThread = null;} if (mAcceptThread != null) {mAcceptThread.cancel(); mAcceptThread = null;} setState(STATE_NONE); } //写入信息到ConnectedThread，准备输出 public void write(byte[] out) { // Create temporary object ConnectedThread r; // Synchronize a copy of the ConnectedThread synchronized (this) { if (mState != STATE_CONNECTED) return; r = mConnectedThread; } // Perform the write unsynchronized r.write(out); } //连接失败 private void connectionFailed() { setState(STATE_LISTEN); // Send a failure message back to the Activity Message msg = mHandler.obtainMessage(MainActivity.MESSAGE_TOAST); Bundle bundle = new Bundle(); bundle.putString(MainActivity.TOAST, "Unable to connect device"); msg.setData(bundle); mHandler.sendMessage(msg); } //连接丢失 private void connectionLost() { setState(STATE_LISTEN); // Send a failure message back to the Activity Message msg = mHandler.obtainMessage(MainActivity.MESSAGE_TOAST); Bundle bundle = new Bundle(); bundle.putString(MainActivity.TOAST, "Device connection was lost"); msg.setData(bundle); mHandler.sendMessage(msg); } //三个线程类 /** * 监听线程 * 服务启动即开启该线程，监听其他设备发出的连接请求 * 直到连接成功或被取消时停止 */ private class AcceptThread extends Thread { // The local server socket private final BluetoothServerSocket mmServerSocket; public AcceptThread() { BluetoothServerSocket tmp = null; // Create a new listening server socket try { tmp = mAdapter.listenUsingRfcommWithServiceRecord(NAME, MY_UUID); } catch (IOException e) { Log.e(TAG, "listen() failed", e); } mmServerSocket = tmp; } public void run() { setName("AcceptThread"); BluetoothSocket socket = null; //如果不是STATE_CONNECTED就一直监听 while (mState != STATE_CONNECTED) { try { // This is a blocking call and will only return on a // successful connection or an exception socket = mmServerSocket.accept(); } catch (IOException e) { Log.e(TAG, "accept() failed", e); break; } //当接受到请求时 if (socket != null) { synchronized (BluetoothService.this) { switch (mState) { case STATE_L