Android Open Source - android-sdk Bonding Receiver

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License

The source code is released under:

MIT License

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Java Source Code

package io.relayr.ble.service;
//from   ww w  .  j av a  2  s.  c  om
import android.annotation.TargetApi;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Build;

import io.relayr.RelayrApp;
import io.relayr.ble.DeviceCompatibilityUtils;
import rx.Observable;
import rx.Subscriber;
import rx.functions.Func1;

import static android.bluetooth.BluetoothDevice.ACTION_BOND_STATE_CHANGED;
import static android.bluetooth.BluetoothDevice.BOND_BONDED;
import static android.bluetooth.BluetoothDevice.EXTRA_BOND_STATE;
import static android.bluetooth.BluetoothDevice.EXTRA_DEVICE;
import static android.bluetooth.BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE;
import static rx.Observable.just;

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
class BondingReceiver {

    static class BondingFunc1 implements Func1<BluetoothGatt, Observable<? extends BluetoothGatt>> {
        @Override
        public Observable<? extends BluetoothGatt> call(final BluetoothGatt gatt) {
            int state = gatt.getDevice().getBondState();

            if (state == BluetoothDevice.BOND_BONDED) {
                return just(gatt);
            } else if (state == BluetoothDevice.BOND_BONDING) {
                return BondingReceiver.subscribeForBondStateChanges(gatt);
            } //else if (state == BluetoothDevice.BOND_NONE) {

            Observable<BluetoothGatt> bluetoothGattObservable =
                    BondingReceiver.subscribeForBondStateChanges(gatt);
            DeviceCompatibilityUtils.createBond(gatt.getDevice());
            return bluetoothGattObservable;
        }
    }

    static Observable<BluetoothGatt> subscribeForBondStateChanges(final BluetoothGatt gatt) {
        return Observable.create(new Observable.OnSubscribe<BluetoothGatt>() {
            @Override
            public void call(final Subscriber<? super BluetoothGatt> subscriber) {
                RelayrApp.get().registerReceiver(new BroadcastReceiver() {
                    @Override
                    public void onReceive(Context context, Intent intent) {
                        BluetoothDevice device = intent.getParcelableExtra(EXTRA_DEVICE);
                        int bondState = intent.getIntExtra(EXTRA_BOND_STATE, -1);
                        int previousBondState = intent.getIntExtra(EXTRA_PREVIOUS_BOND_STATE, -1);

                        // skip other devices
                        if (!device.equals(gatt.getDevice()))
                            return;

                        if (bondState == BOND_BONDED) {
                            RelayrApp.get().unregisterReceiver(this);
                            subscriber.onNext(gatt);
                            subscriber.onCompleted();
                        }

                        /*if (previousBondState == BOND_BONDING && bondState == BOND_NONE) {
                            RelayrApp.get().unregisterReceiver(this);
                            subscriber.onError(new Exception("Not bonded"));
                        }*/
                    }
                }, new IntentFilter(ACTION_BOND_STATE_CHANGED));
            }
        });
    }

}

Java Source Code List