Android source code download: Bluetooth_4.3 BLE Bluetooth communication

Functional classification: Tools

Supported platforms: Android

Operating environment: Eclipse

Development language: Java

Development tool: Eclipse

Source code size: 1.37MB

Source code download address: http://down..com/data/1984795

Source code introduction

This demo is mainly compatible with Bluetooth communication between Android 4.3 terminal devices that support BLE.

Key features include:

1. Turn Bluetooth on and off;

2. Search and connect to surrounding Bluetooth enabled devices

3. After successfully establishing the connection, send a message to the other party via Bluetooth.

Note: To observe the sent/received messages, both parties must have this APP installed.

Source code running screenshot

When the APP turns on Bluetooth, the request for Bluetooth

Bluetooth communication

[[128207]]

Search for nearby Bluetooth devices with the app installed

Set some Bluetooth property values

Source code snippet

 private   void scanLeDevice( final   boolean enable) {
 if (enable) {
 // Stops scanning after a pre-defined scan period.  
            mHandler.postDelayed( new Runnable() {
 @Override  
 public   void run() {
                    mScanning = false ;
                    mBluetoothAdapter.stopLeScan(mLeScanCallback);
                    invalidateOptionsMenu();
 }
 }, SCAN_PERIOD); 
  
            mScanning = true ;
            mBluetoothAdapter.startLeScan(mLeScanCallback);
 } else {
            mScanning = false ;
            mBluetoothAdapter.stopLeScan(mLeScanCallback);
 }
        invalidateOptionsMenu();
 } 
  
 // Adapter for holding devices found through scanning.  
 private   class LeDeviceListAdapter extends BaseAdapter {
 private ArrayList<bluetoothdevice> mLeDevices;
 private LayoutInflater mInflator; 
  
 public LeDeviceListAdapter() {
 super ();
            mLeDevices = new ArrayList<bluetoothdevice>();
            mInflator = DeviceScanActivity. this .getLayoutInflater();
 } 
  
 public   void addDevice(BluetoothDevice device) {
 if (!mLeDevices.contains(device)) {
                mLeDevices.add(device);
 }
 } 
  
 public BluetoothDevice getDevice( int position) {
 return mLeDevices.get(position);
 } 
  
 public   void clear() {
            mLeDevices.clear();
 } 
  
 @Override  
 public   int getCount() {
 return mLeDevices.size();
 } 
  
 @Override  
 public Object getItem( int i) {
 return mLeDevices.get(i);
 } 
  
 @Override  
 public   long getItemId( int i) {
 return i;
 } 
  
 @Override  
 public View getView( int i, View view, ViewGroup viewGroup) {
            ViewHolder viewHolder;
 // General ListView optimization code.  
 if (view == null ) {
                view = mInflator.inflate(R.layout.listitem_device, null );
                viewHolder = new ViewHolder();
                viewHolder.deviceAddress = (TextView) view.findViewById(R.id.device_address);
                viewHolder.deviceName = (TextView) view.findViewById(R.id.device_name);
                view.setTag(viewHolder);
 } else {
                viewHolder = (ViewHolder) view.getTag();
 } 
  
            BluetoothDevice device = mLeDevices.get(i);
 final String deviceName = device.getName();
 if (deviceName != null && deviceName.length() > 0 )
                viewHolder.deviceName.setText(deviceName);
 else  
                viewHolder.deviceName.setText(R.string.unknown_device);
            viewHolder.deviceAddress.setText(device.getAddress()); 
  
 return view;
 }
 } 
  
 // Device scan callback.  
 private BluetoothAdapter.LeScanCallback mLeScanCallback = new BluetoothAdapter.LeScanCallback() { 
  
 @Override  
 public   void onLeScan( final BluetoothDevice device, int rssi, byte [] scanRecord) {
            runOnUiThread( new Runnable() {
 @Override  
 public   void run() {
                    mLeDeviceListAdapter.addDevice(device);
                    mLeDeviceListAdapter.notifyDataSetChanged();
 }
 });
 }
 };
 </bluetoothdevice></bluetoothdevice>

Source code download address: http://down..com/data/1984795