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Add basic function for recognizing Eddy-stone URL beacons. Add an ent…
…rance to the test BLE beacons activity. Signed-off-by: Chengzhi Hu <tony.hu1213@gmail.com>
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25 changes: 25 additions & 0 deletions
25
mobile/src/main/java/org/openhab/habdroid/model/OpenHABBeacon.java
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| package org.openhab.habdroid.model; | ||
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| import android.os.Parcelable; | ||
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| import com.google.auto.value.AutoValue; | ||
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| @AutoValue | ||
| public abstract class OpenHABBeacon { | ||
| public enum Type{ | ||
| eddystone, | ||
| iBeacon | ||
| } | ||
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| public abstract String name(); | ||
| public abstract String address(); | ||
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| @AutoValue.Builder | ||
| abstract static class Builder { | ||
| public abstract Builder name(String name); | ||
| public abstract Builder address(String address); | ||
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| public abstract OpenHABBeacon build(); | ||
| } | ||
| } | ||
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24 changes: 24 additions & 0 deletions
24
mobile/src/main/java/org/openhab/habdroid/ui/OpenHABBleActivity.java
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| package org.openhab.habdroid.ui; | ||
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| import android.os.Bundle; | ||
| import android.support.design.widget.FloatingActionButton; | ||
| import android.support.design.widget.Snackbar; | ||
| import android.support.v7.app.AppCompatActivity; | ||
| import android.support.v7.widget.Toolbar; | ||
| import android.view.View; | ||
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| import org.openhab.habdroid.util.BleBeaconConnector; | ||
| import org.openhab.habdroid.util.Util; | ||
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| public class OpenHABBleActivity extends AppCompatActivity { | ||
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| BleBeaconConnector bleBeaconConnector; | ||
| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| Util.setActivityTheme(this); | ||
| super.onCreate(savedInstanceState); | ||
| bleBeaconConnector = BleBeaconConnector.getInstance(this); | ||
| bleBeaconConnector.scanLeServiceCompact(); | ||
| } | ||
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| } |
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164 changes: 164 additions & 0 deletions
164
mobile/src/main/java/org/openhab/habdroid/util/BleBeaconConnector.java
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| package org.openhab.habdroid.util; | ||
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| import android.Manifest; | ||
| import android.annotation.TargetApi; | ||
| import android.bluetooth.BluetoothAdapter; | ||
| import android.bluetooth.BluetoothManager; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.content.pm.PackageManager; | ||
| import android.os.Handler; | ||
| import android.os.ParcelUuid; | ||
| import android.support.v4.app.ActivityCompat; | ||
| import android.support.v4.content.ContextCompat; | ||
| import android.support.v7.app.AppCompatActivity; | ||
| import android.util.Log; | ||
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| import java.nio.ByteBuffer; | ||
| import java.nio.ByteOrder; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.UUID; | ||
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| @TargetApi(18) | ||
| public class BleBeaconConnector { | ||
| private static final String TAG = BleBeaconConnector.class.getSimpleName(); | ||
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| private static final int REQUEST_ENABLE_BT = 0; | ||
| private static final int SCAN_PERIOD = 10000;//Scan for 10s | ||
| private static final ParcelUuid BASE_UUID = | ||
| ParcelUuid.fromString("00000000-0000-1000-8000-00805F9B34FB"); | ||
| private static final ParcelUuid EDDYSTONE_URL_SERVICE_UUID = | ||
| ParcelUuid.fromString("0000FEAA-0000-1000-8000-00805F9B34FB"); | ||
| private static final int UUID_BYTES_16_BIT = 2; | ||
| private static final int UUID_BYTES_32_BIT = 4; | ||
| private static final int UUID_BYTES_128_BIT = 16; | ||
| private static final int DATA_TYPE_SERVICE_UUIDS_16_BIT_PARTIAL = 0x02; | ||
| private static final int DATA_TYPE_SERVICE_UUIDS_16_BIT_COMPLETE = 0x03; | ||
| private static final int DATA_TYPE_SERVICE_UUIDS_32_BIT_PARTIAL = 0x04; | ||
| private static final int DATA_TYPE_SERVICE_UUIDS_32_BIT_COMPLETE = 0x05; | ||
| private static final int DATA_TYPE_SERVICE_UUIDS_128_BIT_PARTIAL = 0x06; | ||
| private static final int DATA_TYPE_SERVICE_UUIDS_128_BIT_COMPLETE = 0x07; | ||
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| private static BleBeaconConnector INSTANCE; | ||
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| private BluetoothAdapter bluetoothAdapter; | ||
| private Handler handler; | ||
| private BluetoothAdapter.LeScanCallback leScanCallback = (bluetoothDevice, i, bytes) -> { | ||
| if (!isEddyStoneBeacon(bytes)){//TODO add support for iBeacons | ||
| return; | ||
| } | ||
| Log.d(TAG, "Device: " + bluetoothDevice.getName() + " address: " + bluetoothDevice.getAddress()); | ||
| }; | ||
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| //Enforce singleton by using private constructors | ||
| private BleBeaconConnector(){} | ||
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| private BleBeaconConnector(AppCompatActivity activity){ | ||
| checkAndRequestPosPermission(activity); | ||
| handler = new Handler(); | ||
| final BluetoothManager manager = (BluetoothManager) activity.getSystemService(Context.BLUETOOTH_SERVICE); | ||
| bluetoothAdapter = manager.getAdapter(); | ||
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| //Request to open bluetooth ff it's not enabled. | ||
| if (bluetoothAdapter == null || !bluetoothAdapter.isEnabled()){//TODO - Crash on the devices don't have Bluetooth. Change this logic later. | ||
| Intent enableBluetoothIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); | ||
| activity.startActivityForResult(enableBluetoothIntent, REQUEST_ENABLE_BT); | ||
| } | ||
| } | ||
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| private void checkAndRequestPosPermission(AppCompatActivity activity){ | ||
| String[] posPermission = new String[]{Manifest.permission.ACCESS_FINE_LOCATION}; | ||
| if(ContextCompat.checkSelfPermission(activity, posPermission[0]) != PackageManager.PERMISSION_GRANTED) { | ||
| ActivityCompat.requestPermissions(activity, posPermission, REQUEST_ENABLE_BT); | ||
| } | ||
| } | ||
| @SuppressWarnings("deprecation") | ||
| public void scanLeServiceCompact(){ | ||
| handler.postDelayed(() -> bluetoothAdapter.stopLeScan(leScanCallback), SCAN_PERIOD); | ||
| bluetoothAdapter.startLeScan(leScanCallback); | ||
| } | ||
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| public static BleBeaconConnector getInstance(AppCompatActivity activity) { | ||
| if (INSTANCE == null){ | ||
| INSTANCE = new BleBeaconConnector(activity); | ||
| } | ||
| return INSTANCE; | ||
| } | ||
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| private boolean isEddyStoneBeacon(byte[] bytes){ | ||
| List<ParcelUuid> serviceUuids = parseFromBytes(bytes); | ||
| return serviceUuids.contains(EDDYSTONE_URL_SERVICE_UUID); | ||
| } | ||
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| private List<ParcelUuid> parseFromBytes(byte[] bytes){ | ||
| int length; | ||
| int fieldType; | ||
| int currentPos = 0; | ||
| List<ParcelUuid> serviceUuids = new ArrayList<>(); | ||
| while (currentPos < bytes.length) { | ||
| length = bytes[currentPos++] & 0xFF; | ||
| if (length == 0){ | ||
| break; | ||
| } | ||
| fieldType = bytes[currentPos++] & 0xFF; | ||
| switch (fieldType) { | ||
| case DATA_TYPE_SERVICE_UUIDS_16_BIT_PARTIAL: | ||
| case DATA_TYPE_SERVICE_UUIDS_16_BIT_COMPLETE: | ||
| parseServiceUuid(bytes, currentPos, length, UUID_BYTES_16_BIT, serviceUuids); | ||
| case DATA_TYPE_SERVICE_UUIDS_32_BIT_PARTIAL: | ||
| case DATA_TYPE_SERVICE_UUIDS_32_BIT_COMPLETE: | ||
| parseServiceUuid(bytes, currentPos, length, UUID_BYTES_32_BIT, serviceUuids); | ||
| case DATA_TYPE_SERVICE_UUIDS_128_BIT_PARTIAL: | ||
| case DATA_TYPE_SERVICE_UUIDS_128_BIT_COMPLETE: | ||
| parseServiceUuid(bytes, currentPos, length, UUID_BYTES_128_BIT, serviceUuids); | ||
| } | ||
| currentPos += length - 1; | ||
| } | ||
| return serviceUuids; | ||
| } | ||
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| private void parseServiceUuid(byte[] scanRecord, int currentPos, int dataLength, | ||
| int uuidLength, List<ParcelUuid> serviceUuids) { | ||
| while (dataLength > 0) { | ||
| byte[] uuidBytes = new byte[uuidLength]; | ||
| System.arraycopy(scanRecord, currentPos, uuidBytes, 0, uuidLength); | ||
| serviceUuids.add(parseUuidFrom(uuidBytes)); | ||
| dataLength -= uuidLength; | ||
| currentPos += uuidLength; | ||
| } | ||
| } | ||
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| private ParcelUuid parseUuidFrom(byte[] uuidBytes) { | ||
| if (uuidBytes == null) { | ||
| throw new IllegalArgumentException("uuidBytes cannot be null"); | ||
| } | ||
| int length = uuidBytes.length; | ||
| if (length != UUID_BYTES_16_BIT && length != UUID_BYTES_32_BIT && | ||
| length != UUID_BYTES_128_BIT) { | ||
| throw new IllegalArgumentException("uuidBytes length invalid - " + length); | ||
| } | ||
| // Construct a 128 bit UUID. | ||
| if (length == UUID_BYTES_128_BIT) { | ||
| ByteBuffer buf = ByteBuffer.wrap(uuidBytes).order(ByteOrder.LITTLE_ENDIAN); | ||
| long msb = buf.getLong(8); | ||
| long lsb = buf.getLong(0); | ||
| return new ParcelUuid(new UUID(msb, lsb)); | ||
| } | ||
| // For 16 bit and 32 bit UUID we need to convert them to 128 bit value. | ||
| // 128_bit_value = uuid * 2^96 + BASE_UUID | ||
| long shortUuid; | ||
| if (length == UUID_BYTES_16_BIT) { | ||
| shortUuid = uuidBytes[0] & 0xFF; | ||
| shortUuid += (uuidBytes[1] & 0xFF) << 8; | ||
| } else { | ||
| shortUuid = uuidBytes[0] & 0xFF; | ||
| shortUuid += (uuidBytes[1] & 0xFF) << 8; | ||
| shortUuid += (uuidBytes[2] & 0xFF) << 16; | ||
| shortUuid += (uuidBytes[3] & 0xFF) << 24; | ||
| } | ||
| long msb = BASE_UUID.getUuid().getMostSignificantBits() + (shortUuid << 32); | ||
| long lsb = BASE_UUID.getUuid().getLeastSignificantBits(); | ||
| return new ParcelUuid(new UUID(msb, lsb)); | ||
| } | ||
| } |
29 changes: 29 additions & 0 deletions
29
mobile/src/main/res/layout/activity_openhab_ble_beacons.xml
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| <?xml version="1.0" encoding="utf-8"?> | ||
| <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" | ||
| xmlns:app="http://schemas.android.com/apk/res-auto" | ||
| android:orientation="vertical"> | ||
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| <android.support.v7.widget.Toolbar | ||
| android:id="@+id/openhab_toolbar" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="?attr/actionBarSize" | ||
| android:background="?attr/colorPrimary" | ||
| android:elevation="8dp" | ||
| app:popupTheme="@style/ThemeOverlay.AppCompat.Light" | ||
| app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" /> | ||
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| <FrameLayout | ||
| android:id="@+id/ble_frame_layout" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent" > | ||
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| <TextView | ||
| android:id="@+id/textView2" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:text="TextView" /> | ||
| </FrameLayout> | ||
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| </LinearLayout> |
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