android 蓝牙数据传输例子

【核心代码】

package cn.novacomm.igatelibtest;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.UUID;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
import android.widget.Button;
import cn.novacomm.ble.iGate;
import cn.novacomm.ble.iGateCallBacks;

public class MainActivity extends Activity implements iGateCallBacks{
	private static final int ENABLE_BT_REQUEST_ID = 1;
	
	private TextView mIGateState;
	private TextView mReceivedData;
	private TextView mSendMsg;
	private Button mButtonSend;
	private ArrayList<String> mConnectedBluetoothDevicesAddress=new ArrayList<String>();
	private int sendIndex=0;

	private BroadcastReceiver mPairIntentReceiver=new BroadcastReceiver(){
		public void onReceive(Context context, Intent intent) {
			if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(intent.getAction()))
		    {
		        int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, -1);
		        BluetoothDevice aDevice=intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
		        if(bondState==BluetoothDevice.BOND_BONDED){
		        	mIgate.iGateDeviceSetPairState(aDevice.getAddress(), true);
		        }
		    }
	    }
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		mIGateState=(TextView) findViewById(R.id.textViewState);
		mReceivedData=(TextView) findViewById(R.id.textViewRxData);
		mSendMsg=(TextView) findViewById(R.id.editTextSendStr);
		
		mSendMsg.setText("&N 29604");
		mReceivedData.setMovementMethod(ScrollingMovementMethod.getInstance());
		
		mButtonSend = (Button) findViewById(R.id.buttonSend);
		mButtonSend.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
            	TextView view = (TextView) findViewById(R.id.editTextSendStr);
                String message = view.getText().toString();

                if(sendIndex<mConnectedBluetoothDevicesAddress.size()){
                	mIgate.iGateDeviceSendData(mConnectedBluetoothDevicesAddress.get(sendIndex), message.getBytes());
                }
                else{
                	sendIndex=0;
                	if(mConnectedBluetoothDevicesAddress.size()>0){
                		mIgate.iGateDeviceSendData(mConnectedBluetoothDevicesAddress.get(sendIndex), message.getBytes());
                	}
                }
                sendIndex  ;
                if(sendIndex==mConnectedBluetoothDevicesAddress.size()){
                	sendIndex=0;
                }
            }
        });
		
		mIgate = new iGate(this, UUID.fromString("C14D2C0A-401F-B7A9-841F-E2E93B80F631") ,this);
	}
	
	@Override
    protected void onResume() {
    	super.onResume();
    	mIgate.initialize(false);   
    	IntentFilter bluetoothPairFilter = new IntentFilter();
    	bluetoothPairFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
    	registerReceiver(mPairIntentReceiver, bluetoothPairFilter);
	}
	
	@Override
    protected void onPause() {
		super.onPause();
		unregisterReceiver(mPairIntentReceiver);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.main, menu);
		if (mIgate.getIGateState()==iGateHostState.iGateHostStateSearching) {
            menu.findItem(R.id.scanning_start).setVisible(false);
            menu.findItem(R.id.scanning_stop).setVisible(true);
            menu.findItem(R.id.scanning_indicator)
                .setActionView(R.layout.progress_indicator);

        } else {
        	menu.findItem(R.id.scanning_start).setVisible(true);
            menu.findItem(R.id.scanning_stop).setVisible(false);
            menu.findItem(R.id.scanning_indicator).setActionView(null);
        }
		return true;
	}
	
	@Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.scanning_start:
            	mIgate.startScanning(false);
                break;
            case R.id.scanning_stop:
            	mIgate.stopScanning();
                break;
        }
        
        invalidateOptionsMenu();
        return true;
    }
	
	@Override
    public void onBackPressed(){
		for(int i=0;i<mConnectedBluetoothDevicesAddress.size();i  ){
			mIgate.iGateDeviceDisconnect(mConnectedBluetoothDevicesAddress.get(i));
		}
		if(mIgate.getIGateState()==iGateCallBacks.iGateHostState.iGateHostStateSearching){
			mIgate.stopScanning();
		}
		super.onBackPressed();
	}
	
	public void iGateHostDidUpdateState(final iGateHostState state){
		switch(state){
			case iGateHostStatePoweredOff:
				Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
				startActivityForResult(enableBtIntent, ENABLE_BT_REQUEST_ID);
			case iGateHostStateIdle:
			case iGateHostStateSearching:
				invalidateOptionsMenu();
			break;
			
			default:
				break;
		}
		
		// adding to the UI have to happen in UI thread
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				switch(mIgate.getIGateState()){
				case iGateHostStateIdle:
					if(mConnectedBluetoothDevicesAddress.size()==0){
						mIGateState.setText(R.string.str_idle);
					}
					else{
						listConnectedDevices();
					}
					break;
				case iGateHostStateSearching:
					mIGateState.setText(R.string.str_scanning);
					break;
				default:
					break;
				}
			}
		});
	}
	
	public void iGateDeviceFound(final String bluetoothAddress, final int rssi, final byte[] record){
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				mIGateState.setText(getString(R.string.str_found)   bluetoothAddress);
				mIgate.stopScanning();
				mIgate.iGateDeviceConnect(bluetoothAddress);
			}
		});
	}
	
	public void iGateDeviceConnected(final String bluetoothAddress){
		if(!mConnectedBluetoothDevicesAddress.contains(bluetoothAddress)){
			mConnectedBluetoothDevicesAddress.add(bluetoothAddress);
		}
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				mIgate.iGateDeviceBondService(bluetoothAddress);
			}
		});
	}
	
	public void iGateDeviceServiceBonded(final String bluetoothAddress){
		if(!mConnectedBluetoothDevicesAddress.contains(bluetoothAddress)){
			mConnectedBluetoothDevicesAddress.add(bluetoothAddress);
		}
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				listConnectedDevices();
			}
		});
	}
	
	public void iGateDeviceDisConnected(final String bluetoothAddress){
		mConnectedBluetoothDevicesAddress.remove(bluetoothAddress);
		runOnUiThread(new Runnable() {
			@Override
			public void run() {
				if(mConnectedBluetoothDevicesAddress.size()>0){
					String allConnectedDevices=new String();
					for(int i=0;i<mConnectedBluetoothDevicesAddress.size();i  ){
						allConnectedDevices =" " mConnectedBluetoothDevicesAddress.get(i);
					}
					mIGateState.setText(getString(R.string.str_connected)   allConnectedDevices);
				}
				else{
					mIGateState.setText(getString(R.string.str_idle));
				}
				
			}
		});
	}
	
	public void iGateDeviceReceivedData(final String bluetoothAddress, final byte[] data){
		try {
			final String tmpValue = new String(data,"UTF-8");
			
			runOnUiThread(new Runnable() {
				@Override
				public void run() {
					mReceivedData.append(tmpValue);
					Log.e("receivedata", "receivedata");
				}
			});
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}
	
	public void iGateDeviceUpdateRssi(final String bluetoothAddress, final int rssi){
		Log.i("------", String.format("Rssi report %s,%d", mIgate.iGateDeviceGetName(bluetoothAddress),rssi));
	}
	
	public void iGateDeviceLinkLossAlertLevelReport(final String bluetoothAddress, byte alertLevel){
		Log.i("------", String.format("Link loss alert level %s,%d", bluetoothAddress,alertLevel));
	}
	
	public void iGateDeviceTxPowerReport(final String bluetoothAddress, byte txPower){
		Log.i("------", String.format("Tx Power %s,%d", bluetoothAddress,txPower));
	}
	
	private void listConnectedDevices(){
		String allConnectedDevices=new String();
		for(int i=0;i<mConnectedBluetoothDevicesAddress.size();i  ){
			allConnectedDevices =" " mConnectedBluetoothDevicesAddress.get(i);
		}
		mIGateState.setText(getString(R.string.str_connected)   allConnectedDevices);
	}
	
	private iGate mIgate=null;

}