Question

怎么用android获取bluetooth的信号强度

Answer 1

1.oncreate面增加 注册扫描广播
public void
onCreate(Bundle savedInstanceState) {

// 注册始发现广播

IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_ACL_CONNECTED);

this.registerReceiver(mReceiver, filter);

}

2.新建BroadcastReceiver广播象并实现面onreceive,onreceiverssi（信号强度）

private final BroadcastReceiver mReceiver = new BroadcastReceiver() {

@Override
public void onReceive(Context
context, Intent intent) {
String action =
intent.getAction();

//设备始扫描

if (BluetoothDevice.ACTION_FOUND.equals(action)) {

//IntentblueDevice象

BluetoothDevice device = intent

.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);

if
(device.getBondState() != BluetoothDevice.BOND_BONDED) {

//信号强度

short rssi =
intent.getExtras().getShort(

BluetoothDevice.EXTRA_RSSI);

}

}
}
};