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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.android_scripting.facade.bluetooth;
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 com.googlecode.android_scripting.Log;
import java.util.Set;
/**
* This class is used to put the device in discovery mode.
*/
public class BluetoothDiscoveryHelper {
/**
* BLuetooth discovery listener Interface.
*/
public interface BluetoothDiscoveryListener {
/**
* Add Bonded device.
*/
void addBondedDevice(String name, String address);
/**
* Add Devices.
*/
void addDevice(String name, String address);
/**
* Complete scanning.
*/
void scanDone();
}
private final Context mContext;
private final BluetoothDiscoveryListener mListener;
private final BroadcastReceiver mReceiver;
public BluetoothDiscoveryHelper(
Context context, BluetoothDiscoveryListener listener) {
mContext = context;
mListener = listener;
mReceiver = new BluetoothReceiver();
}
private class BluetoothReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
// Get the BluetoothDevice object from the Intent.
BluetoothDevice device = intent.getParcelableExtra(
BluetoothDevice.EXTRA_DEVICE);
Log.d("Found device " + device.getAliasName());
// If it's already paired, skip it, because it's been listed already.
if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
mListener.addDevice(device.getName(), device.getAddress());
}
} else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
mListener.scanDone();
}
}
}
/**
* Start Bluetooth Discovery.
*/
public void startDiscovery() {
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter.isDiscovering()) {
bluetoothAdapter.cancelDiscovery();
}
Set<BluetoothDevice> pairedDevices = bluetoothAdapter.getBondedDevices();
for (BluetoothDevice device : pairedDevices) {
mListener.addBondedDevice(device.getName(), device.getAddress());
}
IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
mContext.registerReceiver(mReceiver, filter);
if (!bluetoothAdapter.isEnabled()) {
bluetoothAdapter.enable();
}
bluetoothAdapter.startDiscovery();
}
/**
* Cancel.
*/
public void cancel() {
mContext.unregisterReceiver(mReceiver);
mListener.scanDone();
}
}
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