started to add ble functions
added ble as sensor to java and c++ added sensorlistener for ble added ble to observation and onDataSensor in filter started to work on ble fingerprints for optimization
This commit is contained in:
mail@toni-fetzer.de
111
_android/src/BLE.java
Normal file
111
_android/src/BLE.java
Normal file
@@ -0,0 +1,111 @@
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package indoor.java;
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import android.app.Activity;
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import android.bluetooth.BluetoothAdapter;
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import android.bluetooth.BluetoothManager;
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import android.bluetooth.le.BluetoothLeScanner;
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import android.bluetooth.le.ScanCallback;
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import android.bluetooth.le.ScanFilter;
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import android.bluetooth.le.ScanSettings;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.util.Log;
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import android.widget.Toast;
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import java.util.ArrayList;
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import java.util.List;
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import java.io.ByteArrayOutputStream;
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public class BLE {
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private static Activity act;
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private static BluetoothAdapter bt = null;
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private static BluetoothLeScanner scanner = null;
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private static ScanCallback mLeScanCallback;
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private static ScanSettings mLeSettings;
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private static final List<ScanFilter> mLeFilter = new ArrayList<>();
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/** called when a scan is completed successfully */
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public static native void onScanComplete(final byte[] result);
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/**
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* start bluetooth scanning in the background.
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* will call onScanComplete() once a scan is available
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*/
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public static int start() {
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Log.d("ble", "start()");
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MyActivity act = MyActivity.act;
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// sanity check
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if (!act.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
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Toast.makeText(act, "Bluetooth-LE not supported!", Toast.LENGTH_SHORT).show();
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return 1338;
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}
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Log.d("ble", "Sanity Checks");
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// Initializes a Bluetooth adapter. For API level 18 and above, get a reference to
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// BluetoothAdapter through BluetoothManager.
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final BluetoothManager mgr = (BluetoothManager) act.getSystemService(Context.BLUETOOTH_SERVICE);
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bt = mgr.getAdapter();
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Log.d("ble", "BLE Mangaer Start");
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// create the scanner
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scanner = bt.getBluetoothLeScanner();
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// set the ble settings
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mLeSettings = new ScanSettings.Builder()
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.setReportDelay(0)
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.setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
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.setNumOfMatches(ScanSettings.MATCH_NUM_MAX_ADVERTISEMENT)
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.build();
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//mLeFilter.add(new ScanFilter.Builder().setServiceUuid(new ParcelUuid(UUID.fromString("fda50693-a4e2-4fb1-afcf-c6eb07647825"))).build());
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// and attach the callback
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mLeScanCallback = new ScanCallback() {
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@Override public void onScanResult(int callbackType, android.bluetooth.le.ScanResult result) {
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//Log.d("ble", result.getDevice() + " " + result.getRssi());
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final byte[] rst = serialize(result);
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BLE.onScanComplete(rst);
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}
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// @Override public void onBatchScanResults(List<android.bluetooth.le.ScanResult> results){
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// for(android.bluetooth.le.ScanResult result : results){
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// Log.d("ble2", result.getDevice() + " " + result.getRssi());
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// final byte[] rst = serialize(result);
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// BLE.onScanComplete(rst);
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// }
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// }
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};
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if(bt == null){
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Toast.makeText(act, "Bluetooth-LE not supported!", Toast.LENGTH_SHORT).show();
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return 1338;
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}
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scanner.startScan(mLeFilter, mLeSettings, mLeScanCallback);
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return 1337;
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}
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/** convert the given scan-result to a binary byte[] representation */
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private static byte[] serialize(final android.bluetooth.le.ScanResult res) {
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final ByteArrayOutputStream baos = new ByteArrayOutputStream();
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try {
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baos.write(res.getDevice().getAddress().getBytes());
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baos.write((byte)res.getRssi());
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baos.write((byte)0);
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baos.write((byte)0);
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} catch (final Exception e) {;}
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return baos.toByteArray();
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}
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}
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@@ -19,8 +19,8 @@ public class WiFi {
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private static WifiManager manager;
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private static BroadcastReceiver receiver;
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private static Thread tHeartbeat = null;
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private static long lastScanStartTS = 0;
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private static Thread tHeartbeat = null;
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private static long lastScanStartTS = 0;
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/** called when a scan is completed successfully */
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public static native void onScanComplete(final byte[] result);
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@@ -36,12 +36,12 @@ public class WiFi {
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MyActivity act = MyActivity.act;
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manager = (WifiManager) act.getSystemService(Context.WIFI_SERVICE);
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// reset();
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// reset();
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WiFi.receiver = new BroadcastReceiver() {
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public final void onReceive(final Context context, final Intent intent) {
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final byte[] result = serialize(manager.getScanResults());
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triggerOneScan();
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triggerOneScan();
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WiFi.onScanComplete(result);
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}
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};
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@@ -50,42 +50,42 @@ public class WiFi {
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act.registerReceiver(WiFi.receiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
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// start the first scan
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triggerOneScan();
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triggerOneScan();
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//this is a very nice hack. do not try this at home.
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Method m = null;
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try {
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m = manager.getClass().getDeclaredMethod("setFrequencyBand", int.class, boolean.class);
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m.setAccessible(true);
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m.invoke(manager, 2, true);
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m.invoke(manager, 2, true);
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m.invoke(manager, 2, true);
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Log.d("wifi", "HACK IS RUNNING, BIAAAATCH");
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} catch (Exception e) {
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Log.d("wifi", "HACK HAS FAILED >.<");
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e.printStackTrace();
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}
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//this is a very nice hack. do not try this at home.
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Method m = null;
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try {
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m = manager.getClass().getDeclaredMethod("setFrequencyBand", int.class, boolean.class);
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m.setAccessible(true);
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m.invoke(manager, 2, true);
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m.invoke(manager, 2, true);
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m.invoke(manager, 2, true);
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Log.d("wifi", "HACK IS RUNNING, BIAAAATCH");
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} catch (Exception e) {
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Log.d("wifi", "HACK HAS FAILED >.<");
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e.printStackTrace();
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}
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// if the scan result takes longer than X milliseconds,
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// trigger another-scan to ensure nothing is stuck
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final Runnable r = new Runnable() {
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public void run() {
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while(true) {
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final long ts = System.currentTimeMillis();
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final long diff = ts - lastScanStartTS;
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if (diff > 1000) { triggerOneScan(); }
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try {Thread.sleep(200);} catch (final Exception e) {;}
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}
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}
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};
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// if the scan result takes longer than X milliseconds,
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// trigger another-scan to ensure nothing is stuck
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final Runnable r = new Runnable() {
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public void run() {
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while(true) {
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final long ts = System.currentTimeMillis();
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final long diff = ts - lastScanStartTS;
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if (diff > 1000) { triggerOneScan(); }
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try {Thread.sleep(200);} catch (final Exception e) {;}
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}
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}
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};
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// start the heartbeat once
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if (tHeartbeat == null) {
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tHeartbeat = new Thread(r);
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tHeartbeat.start();
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}
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// start the heartbeat once
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if (tHeartbeat == null) {
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tHeartbeat = new Thread(r);
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tHeartbeat.start();
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}
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return 1337;
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return 1337;
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}
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@@ -126,7 +126,7 @@ public class WiFi {
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try {
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if(!manager.startScan()) {throw new RuntimeException("Cant start WiFi!");}
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lastScanStartTS = System.currentTimeMillis();
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lastScanStartTS = System.currentTimeMillis();
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}catch (final Exception e) {
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throw new RuntimeException(e);
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}
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