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   源码介绍

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package com.ThinBTClient.www;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.UUID;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Intent;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.util.Log;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
import android.widget.Toast;

public class ThinBTClient extends Activity implements Runnable {

	private static final boolean D = true;
	private BluetoothAdapter mBluetoothAdapter = null;
	private BluetoothSocket btSocket = null;
	private OutputStream outStream = null;
	private InputStream InStream = null;
	public boolean BluetoothFlag = true;
	public int runState = 0;// 0:停止 1:前进 2:后退
	public int tansState = 0;
	SensorManager mySensorManager; // SensorManager对象引用

	Button mButtonF;
	Button mButtonB;
	Button mButtonL;
	Button mButtonR;
	Button mButtonS;
	Button mButtongotoactivity01;

	TextView myText;
	SeekBar seekBarPWM;

	private static final UUID MY_UUID = UUID
			.fromString("00001101-0000-1000-8000-00805F9B34FB");

	private static String address = null;									 // <==要连接的蓝牙设备MAC地址
	
	/* 提示选择一个要连接的服务器 */
	/* 跳转到搜索的蓝牙设备列表区，进行选择 */
	
	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		myText = (TextView) findViewById(R.id.myText);
		myText.setText("蓝牙还不可用,请稍后...");
		seekBarPWM = (SeekBar) findViewById(R.id.seekBarPWM);
		seekBarPWM.setMax(100);
		seekBarPWM.setProgress(30);

		mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
		if (mBluetoothAdapter == null) {
			Toast.makeText(this, "蓝牙设备不可用，请打开蓝牙！", Toast.LENGTH_LONG).show();
			finish();
			return;
		}

		if (!mBluetoothAdapter.isEnabled()) {
			DisplayToast("蓝牙未打开，程序将自动打开蓝牙！");
			mBluetoothAdapter.enable();
		}

		// 设置拖动条改变监听器
		OnSeekBarChangeListener osbcl = new OnSeekBarChangeListener() {
			@Override
			public void onProgressChanged(SeekBar seekBar, int progress,
					boolean fromUser) {
				int data = seekBarPWM.getProgress();
				myText.setText("当前进度："   data);
				String message;
				byte[] msgBuffer = new byte[5];
				try {
					outStream = btSocket.getOutputStream();

				} catch (IOException e) {
					e.printStackTrace();
				}
				msgBuffer[0] = 0;
				msgBuffer[1] = (byte) (data >> 24 & 0xff);
				msgBuffer[2] = (byte) (data >> 16 & 0xff);
				;
				msgBuffer[3] = (byte) (data >> 8 & 0xff);
				;
				msgBuffer[4] = (byte) (data >> 0 & 0xff);
				;

				try {
					outStream.write(msgBuffer);

				} catch (IOException e) {
					e.printStackTrace();
				}

			}

			@Override
			public void onStartTrackingTouch(SeekBar seekBar) {
				// Toast.makeText(getApplicationContext(),
				// "onStartTrackingTouch",
				// Toast.LENGTH_SHORT).show();
			}

			@Override
			public void onStopTrackingTouch(SeekBar seekBar) {
				// Toast.makeText(getApplicationContext(),
				// "onStopTrackingTouch",
				// Toast.LENGTH_SHORT).show();
			}

		};
		// 为拖动条绑定监听器
		seekBarPWM.setOnSeekBarChangeListener(osbcl);

		// 前进
		mButtonF = (Button) findViewById(R.id.btnF);
		mButtonF.setOnTouchListener(new Button.OnTouchListener() {
			@Override
			public boolean onTouch(View v, MotionEvent event) {
				// TODO Auto-generated method stub
				int action = event.getAction();
				switch (action) {
				case MotionEvent.ACTION_DOWN:
					runState = 1;
					sendCmd("a");
					Log.d("Season", "前进");
					break;

				case MotionEvent.ACTION_UP:
					runState = 0;
					sendCmd("g");
					Log.d("Season", "停止运转");
					break;
				}
				return false;
			}
		});

		// 后退
		mButtonB = (Button) findViewById(R.id.btnB);
		mButtonB.setOnTouchListener(new Button.OnTouchListener() {
			@Override
			public boolean onTouch(View v, MotionEvent event) {
				// TODO Auto-generated method stub
				int action = event.getAction();
				switch (action) {
				case MotionEvent.ACTION_DOWN:
					runState = 2;
					sendCmd("b");
					Log.d("Season", "后退");
					break;

				case MotionEvent.ACTION_UP:
					runState = 0;
					sendCmd("g");
					Log.d("Season", "停止yuzhaun");
					break;
				}
				return false;
			}
		});
		// 左转
		mButtonL = (Button) findViewById(R.id.btnL);
		mButtonL.setOnTouchListener(new Button.OnTouchListener() {
			@Override
			public boolean onTouch(View v, MotionEvent event) {
				// TODO Auto-generated method stub
				int action = event.getAction();
				switch (action) {
				case MotionEvent.ACTION_DOWN:
					sendCmd("c");
					break;

				case MotionEvent.ACTION_UP:
					sendCmd("C");
					break;
				}
				return false;
			}
		});
		// 右转
		mButtonR = (Button) findViewById(R.id.btnR);
		mButtonR.setOnTouchListener(new Button.OnTouchListener() {

			@Override
			public boolean onTouch(View v, MotionEvent event) {
				// TODO Auto-generated method stub
				int action = event.getAction();
				switch (action) {
				case MotionEvent.ACTION_DOWN:
					sendCmd("d");
					break;

				case MotionEvent.ACTION_UP:
					sendCmd("D");
					break;
				}
				return false;
			}

		});

		mButtongotoactivity01 = (Button) findViewById(R.id.gotoactivity01);
		mButtongotoactivity01.setOnTouchListener(new Button.OnTouchListener() {

			@Override
			public boolean onTouch(View v, MotionEvent event) {
				// TODO Auto-generated method stub
				int action = event.getAction();
				switch (action) {
				case MotionEvent.ACTION_DOWN:
					break;

				case MotionEvent.ACTION_UP:
					Intent enabler = new Intent(ThinBTClient.this,
							DiscoveryActivity.class);
					startActivity(enabler);
					break;
				}
				return false;
			}

		});

		// 停止
		mButtonS = (Button) findViewById(R.id.btnS);
		mButtonS.setOnTouchListener(new Button.OnTouchListener() {

			@Override
			public boolean onTouch(View v, MotionEvent event) {
				// TODO Auto-generated method stub
				int action = event.getAction();
				switch (action) {
				case MotionEvent.ACTION_DOWN:
					Log.d("Season", "停止");
					sendCmd("g");
					break;

				case MotionEvent.ACTION_UP:
					sendCmd("G");
					Log.d("Season", "停止");
					break;
				}

				return false;

			}

		});

		mySensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); // 获得SensorManager对象
	}

	class MyHandler extends Handler {

		@Override
		public void handleMessage(Message msg) {
			// TODO Auto-generated method stub
			Bundle data = msg.getData();
			Log.d("Season", "in the thread:age="   data.getInt("age")
					  " name="   data.getString("name"));

			try {
				InStream = btSocket.getInputStream();

			} catch (IOException e) {
				e.printStackTrace();
			}

			byte[] tmp = new byte[5];

			try {
				InStream.read(tmp, 0, 5);
				myText.setText(new String(tmp, 0, 5)   " ");
				System.out.println(new String(tmp, 0, 5)   " ");

			} catch (IOException e) {
				e.printStackTrace();
			}

			// Thread.sleep(1000);
		}

		MyHandler(Looper looper) {
			super(looper);
		}

		MyHandler() {

		}

	}

	// 开发实现了SensorEventListener接口的传感器监听器
	private SensorEventListener mySensorEventListener = new SensorEventListener() {
		@Override
		public void onAccuracyChanged(Sensor sensor, int accuracy) {// 重写onAccuracyChanged方法，在此为空实现
		}

		@Override
		public void onSensorChanged(SensorEvent event) {
			if (event.sensor.getType() == Sensor.TYPE_ORIENTATION) {// 判断是否为加速度传感器变化产生的数据
				float[] values = event.values; // 获得捕获的数据
				myText.setText("Yaw:"   values[0]   " Pitch:"   values[1]
						  " Roll:"   values[2]);
				if (BluetoothFlag == true) {
					if (values[1] > 20)// 左向
					{
						if (tansState == 0) {
							if (runState == 1)// 前进
							{
								sendCmd("h");// 左转弯
								Log.d("Season", "左转弯");
							} else if (runState == 2)// 后退
							{
								sendCmd("k");// 左退弯
								Log.d("Season", "左退弯");
							}
							tansState = 1;// 只发送一次指令
						}

					}

					else if (values[1] < -20)// 右向
					{
						if (tansState == 0) {
							if (runState == 1)// 前进
							{
								sendCmd("i");// 右转弯
								Log.d("Season", "右转弯");
							} else if (runState == 2)// 后退
							{
								sendCmd("j");// 右退弯
								Log.d("Season", "右退弯");
							}
							tansState = 1;// 只发送一次指令
						}

					} else {
						if (tansState == 1) {
							tansState = 2;
							sendCmd("f");// 清除转弯
							if (runState == 1)// 前进
							{
								sendCmd("a");
								Log.d("Season", "清除转弯前进");
							} else if (runState == 2)// 后退
							{
								sendCmd("b");
								Log.d("Season", "清除转弯后退");
							}
						}

						else if (tansState == 2) {
							tansState = 0;
						}

					}

				}

			}
		}
	};

	@Override
	public void onStart() {
		super.onStart();
	}

	@Override
	public void onResume() {
		mySensorManager.registerListener(// 调用方法为SensorManager注册监听器
				mySensorEventListener, // 实现了SensorEventListener接口的监听器对象
				mySensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION), // Sensor对象
				SensorManager.SENSOR_DELAY_UI // 系统传递SensorEvent事件的频度
				);
		super.onResume();

		DisplayToast("正在尝试连接蓝牙设备，请稍后····");
		if(address == null){
			address = "00:12:06:01:51:26";
		}
		else {
		}
		BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
		try {
			btSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
		} catch (IOException e) {
			DisplayToast("套接字创建失败！");
		}
		DisplayToast("成功连接蓝牙设备！");
		mBluetoothAdapter.cancelDiscovery();
		try {
			btSocket.connect();
			DisplayToast("连接成功建立，可以开始操控了~~~");
			myText.setText("蓝牙设备已准备好了!");
			sendCmd("Connect OK!");
			BluetoothFlag = true;
			MyThread bluetoothThread = new MyThread();
			bluetoothThread.start();
		} catch (IOException e) {
			try {
				btSocket.close();
			} catch (IOException e2) {
				DisplayToast("连接没有建立，无法关闭套接字！");
			}
		}
	}

	@Override
	public void onPause() {
		mySensorManager.unregisterListener(mySensorEventListener); // 取消注册监听器
		super.onPause();
		if (outStream != null) {
			try {
				outStream.flush();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		try {
			btSocket.close();
			BluetoothFlag = false;// 关闭蓝牙读线程
		} catch (IOException e2) {

			DisplayToast("套接字关闭失败！");
		}
	}

	@Override
	public void onStop() {
		super.onStop();
	}

	@Override
	public void onDestroy() {
		super.onDestroy();

	}

	public void DisplayToast(String str) {
		Toast toast = Toast.makeText(this, str, Toast.LENGTH_LONG);
		toast.setGravity(Gravity.TOP, 0, 220);
		toast.show();

	}

	public void sendCmd(String message) {
		try {
			outStream = btSocket.getOutputStream();

		} catch (IOException e) {
			e.printStackTrace();
		}
		byte[] msgBuffer;
		msgBuffer = message.getBytes();
		try {
			outStream.write(msgBuffer);

		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public class MyThread extends Thread {

		MyThread() {
			BluetoothFlag = true;
			try {
				InStream = btSocket.getInputStream();

			} catch (IOException e) {
				e.printStackTrace();
			}
		}

		@Override
		public void run() {
			byte[] tmp = null;
			while (BluetoothFlag) {
				try {
					demo();
				} catch (Exception e) {
					System.out.println("Exception...");
					e.printStackTrace();
				}
			}
		}

		public String demo() throws IOException, InterruptedException {
			byte[] buffer = new byte[1];
			int length = 0;
			byte bb = 0;
			String line = null;
			System.out.println("ThinBTClient.MyThread.demo()");
			ArrayList<Byte> list = new ArrayList<Byte>();
			while (InStream.read(buffer) == -1) {
				Thread.sleep(100);
				System.out.print("-->"   InStream.read(buffer));
			}
			return null;
		}

	}

	@Override
	public void run() {
		// TODO Auto-generated method stub

	}

}