@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
if (mReceiver != null) {
unregisterReceiver(mReceiver);
// mReceiver = null;
}
if (mReceiver2 != null) {
unregisterReceiver(mReceiver2);
// mReceiver2 = null;
}
BluetoothAdapter mBluetoothAdapter1 = BluetoothAdapter.getDefaultAdapter();
mBluetoothAdapter1.cancelDiscovery();
// mBluetoothAdapter1.disable();
// mBluetoothAdapter1.enable();
MainActivity.VAR_BLUETOOTH_DISCOVERY.open();
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.search_inof);
Intent data = this.getIntent();
final String name = data.getStringExtra(SearchDevice.DEV_NAME);
final String macInfo = data.getStringExtra(SearchDevice.DEV_MAC);
photoPath = data.getStringExtra(SearchDevice.DEV_IMAGENAME);
if (null != photoPath) {
Uri path = Uri.parse(photoPath);
devicePic = (ImageView) findViewById(R.id.imageview1);
devicePic.setImageURI(path);
}
TextView tvName = (TextView) findViewById(R.id.tvSearchName);
// distance_tv = (TextView)findViewById(R.id.tvSearchDistanceValue);
// signalView = (ImageView)findViewById(R.id.imageView);
// signal none-dot-part image view
signal_ndot_iv = (ImageView) findViewById(R.id.imageView);
// TextView mac_tv = (TextView)findViewById(R.id.mac_tv);
// mac_tv.setText(macInfo);
// dot image view
dot_iv = (ImageView) findViewById(R.id.signal_dot);
dot_iv.setImageResource(R.drawable.signal_dot_0);
animate(dot_iv, imagesToShow, 0, true);
tvName.setText(name);
final BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
// final TextView tvRSSI = (TextView)findViewById(R.id.tvSearchRSSIValue);
// tvRSSI.setText("Acquiring RSSI value...");
MainActivity.VAR_BLUETOOTH_DISCOVERY.close();
mBluetoothAdapter.cancelDiscovery();
IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
/** Receiver #1 handles RSSI and Signal View */
mReceiver =
new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
String action = intent.getAction();
// When discovery finds a device
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
// Get the BluetoothDevice object from the Intent
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (device.getAddress() != null && device.getAddress().equals(macInfo)) {
if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
// 信号强度。
short rssi = intent.getExtras().getShort(BluetoothDevice.EXTRA_RSSI);
float newRssi = calculateFinalRssi(rssi);
float dis = calculateDistance(newRssi);
// tvRSSI.setText(String.valueOf(rssi));
/** Graphic Part */
if (newRssi < -80) {
imagesToShow[0] = R.drawable.signal_dot_1;
signal_ndot_iv.setImageResource(R.drawable.signal_1);
// distance_tv.setText(dis+" cm");
} else if (newRssi < -60) {
imagesToShow[0] = R.drawable.signal_dot_2;
signal_ndot_iv.setImageResource(R.drawable.signal_2);
// distance_tv.setText(dis+" cm");
} else if (newRssi < -40) {
imagesToShow[0] = R.drawable.signal_dot_3;
signal_ndot_iv.setImageResource(R.drawable.signal_3);
// distance_tv.setText(dis+" cm");
} else if (newRssi < 0) {
imagesToShow[0] = R.drawable.signal_dot_4;
signal_ndot_iv.setImageResource(R.drawable.signal_4);
// distance_tv.setText(dis+" cm");
}
mBluetoothAdapter.cancelDiscovery();
}
}
}
}
};
registerReceiver(mReceiver, filter);
IntentFilter filter2 = new IntentFilter();
filter2.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
/** Receiver #2 Handles end of receiving */
mReceiver2 =
new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(BluetoothAdapter.ACTION_DISCOVERY_FINISHED)) {
mBluetoothAdapter.startDiscovery();
}
}
};
registerReceiver(mReceiver2, filter2);
if (!mBluetoothAdapter.isEnabled()) {
mBluetoothAdapter.enable();
}
mBluetoothAdapter.startDiscovery();
}
