看着Android的发展心里很是欢喜,对于有硬件基础的我们当然可以选择Android应用+硬件产品 = 单片机+大屏幕+硬件产品+网络设备,同时价格、稳定性、通用性、美观性、开发难度,Android让我欣喜不已,不是为了逃避难度,只是真心觉得它太棒了~

这里我选择描述一下Android与zigbee,很多玩智能家居,工业控制,组网的童靴可以参考参考。

 

Android zigbee android zigbee通信_android无线组网

已经选择好了第一款平板,当然平板就作为了当前的协调器,我们要实现的功能是:(1)写一个Android应用与协调器通信,(2)使用一个节点将数据接收到电脑上

(1)写一个Android应用与协调器通信

先做一个demo界面,效果如图1所示。

Android zigbee android zigbee通信_android_02

制作方法参考,我得博客:13-7-13 聊天窗口的绘制与实现 (实在有问题可以留言)。

接下来,引入zigbee包,***.so文件,实现协调器(平板)与底层(节点接到电脑上)对话

将libserial_port.so文件拷贝到libs中(拷贝这个图片我就不上了),填写对应的Java类,实现对so文件的调用,下面开始代码啦~

常常我们编写代码的时候头脑一热就开始编写,但是代码是逻辑的理性的,不是感性的,最好有个框架。

 

Android zigbee android zigbee通信_Android zigbee_03

根据框架来看,第一部分串口操作代码如下:

/****************************************************************
 * 编写SerialPort类,实现方法:串口初始化、输入数据、输出数据
 * @author hanzhen
 *
 */
public class SerialPort {

	private static final String TAG = "SerialPort";
	/*
	 * Do not remove or rename the field mFd: it is used by native method close();
	 */
	private FileDescriptor mFd;
	private FileInputStream mFileInputStream;
	private FileOutputStream mFileOutputStream;
	/******************************************************
	 * 实现串口初始化工作
	 * @param device
	 * @param baudrate
	 * @param flags
	 */
	public SerialPort(File device, int baudrate, int flags) throws SecurityException, IOException {
		
		mFd = open(device.getAbsolutePath(), baudrate, flags);
		Log.i(TAG, "-----path::"+device.getAbsolutePath());
		if (mFd == null) {
			Log.e(TAG, "native open returns null");
			throw new IOException();
		}

		mFileInputStream = new FileInputStream(mFd);
		mFileOutputStream = new FileOutputStream(mFd);
	}
	/*******************************************************
	 * 输入数据
	 * @return
	 */
	// Getters and setters
	public InputStream getInputStream() {
		return mFileInputStream;
	}
	/********************************************************
	 * 发送数据或输出数据
	 * @return
	 */
	public OutputStream getOutputStream() {
		return mFileOutputStream;
	}
	//静态装入so文件,声明JNI接口类
	// JNI
	private native static FileDescriptor open(String path, int baudrate, int flags);
	public native void close();
	static {
		System.loadLibrary("serial_port");
	}
}

第二部分为Activity提供接口
(1)编写Application类

/***********************************************************
 * 编写Application类,实现方法:打开串口、关闭串口
 * @author hanzhen
 *
 */
public class Application extends android.app.Application {

	public SerialPortFinder mSerialPortFinder = new SerialPortFinder();
	private SerialPort mSerialPort = null;

	public SerialPort getSerialPort() throws SecurityException, IOException, InvalidParameterException {
		if (mSerialPort == null) {
			String path;
			int baudrate;
			path="/dev/ttySAC2";
			baudrate=9600;
			/* Open the serial port */
			mSerialPort = new SerialPort(new File(path), baudrate, 0);
		}
		return mSerialPort;
	}

	public void closeSerialPort() {
		if (mSerialPort != null) {
			mSerialPort.close();
			mSerialPort = null;
		}
	}
}

千万不要忘记在manifest.xml文件中装入它:android:name="com.pitaya.zigbee.Application"

(2)编写SerialPortActivity类,实现程序

/***************************************************************
 * 编写SerialPortActivity类,实现程序:
 *1、提供串口数据发送数据流接口
 		Protected OutputStream mOutputStream;
 *2、开启接收线程
		提供接收抽象函数abstract void onDataReceived
 * @author hanzhen
 *
 */
public abstract class SerialPortActivity extends Activity {

	private static final String TAG="SerialPortActivity";
	protected Application mApplication;
	protected SerialPort mSerialPort;
	protected OutputStream mOutputStream;
	private InputStream mInputStream;
	private ReadThread mReadThread;

	private class ReadThread extends Thread {

		@Override
		public void run() {
			super.run();
			while(!isInterrupted()) {
				int size;
				try {
					byte[] buffer = new byte[512];
					if (mInputStream == null) return;
					size = mInputStream.read(buffer);
					if (size > 0) {
						Thread.sleep(30);		//保证接收完毕
						size = mInputStream.read(buffer);
						onDataReceived(buffer, size);
					}
				} catch (IOException e) {
					e.printStackTrace();
					return;
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}
	}

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		mApplication = (Application) getApplication();//Return the application that owns this activity
		Log.i(TAG, "---->let we get the zigbee info");
		try {
			Log.i(TAG, "---->open the serialPort");
			mSerialPort = mApplication.getSerialPort();
			Log.i(TAG, "---->serialPort info: "+mSerialPort.toString());
			mOutputStream = mSerialPort.getOutputStream();
			mInputStream = mSerialPort.getInputStream();
			Log.i(TAG, "---->打开接收线程: ");
			/* Create a receiving thread */
			mReadThread = new ReadThread();
			mReadThread.start();
			
		}catch(Exception e){
			e.printStackTrace();
		}
	}

	protected abstract void onDataReceived(final byte[] buffer, final int size);

	@Override
	protected void onDestroy() {
		if (mReadThread != null)
			mReadThread.interrupt();
		mApplication.closeSerialPort();
		mSerialPort = null;
		super.onDestroy();
	}

第三部分 界面实现zigbee数据的收发

//发送数据

send_button.setOnClickListener(new OnClickListener() {
	public void onClick(View arg0) {
		String t = Emission.getText().toString();
		try {
			mOutputStream.write(t.getBytes());
			Message(ChatMessage.MESSAGE_TO, t);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
});

//接收数据

//接收数据
	private static String sbuf = "";
	@Override
	protected void onDataReceived(final byte[] buffer, final int size) {
		// TODO Auto-generated method stub
		runOnUiThread(new Runnable() {
			public void run() {
				String zig_recept = new String(buffer, 0, size);
				Log.i(TAG, zig_recept);
				sbuf =sbuf+zig_recept;
				if(sbuf.charAt(sbuf.length()-1) =='a' ){
					Message(ChatMessage.MESSAGE_FROM, sbuf);
					sbuf = "";
				}				
			}
		});
	}

----------------------------------------------------------------结束-------------------------------------------------

上面完成了流程图所示的功能:

效果如图所示:

Android zigbee android zigbee通信_android无线组网_04

   

Android zigbee android zigbee通信_Android zigbee_05

  图1 程序刚起动                         图2 发送字符“feiyangxiaomia”过去

Android zigbee android zigbee通信_zigbee_06

         

Android zigbee android zigbee通信_底层通信_07

  图3 接收到了字符“feiyangxiaomia”,发送几个helloworld    图4 接收到了字符“helloworld”