mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-07-10 07:31:34 +02:00
bbecfbeace
Do not set the scan tipe as BT classic if the discovery action has been set by BLE scans.
479 lines
18 KiB
Java
479 lines
18 KiB
Java
package nodomain.freeyourgadget.gadgetbridge.activities;
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import android.Manifest;
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import android.annotation.TargetApi;
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import android.app.Activity;
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import android.bluetooth.BluetoothAdapter;
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import android.bluetooth.BluetoothDevice;
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import android.bluetooth.BluetoothManager;
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import android.bluetooth.le.ScanCallback;
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import android.bluetooth.le.ScanResult;
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import android.bluetooth.le.ScanSettings;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.pm.PackageManager;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.os.ParcelUuid;
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import android.os.Parcelable;
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import android.support.v4.app.ActivityCompat;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.Button;
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import android.widget.ListView;
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import android.widget.ProgressBar;
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import android.widget.Toast;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.ArrayList;
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import nodomain.freeyourgadget.gadgetbridge.GBApplication;
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import nodomain.freeyourgadget.gadgetbridge.R;
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import nodomain.freeyourgadget.gadgetbridge.adapter.DeviceCandidateAdapter;
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import nodomain.freeyourgadget.gadgetbridge.devices.DeviceCoordinator;
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import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
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import nodomain.freeyourgadget.gadgetbridge.impl.GBDeviceCandidate;
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import nodomain.freeyourgadget.gadgetbridge.util.DeviceHelper;
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import nodomain.freeyourgadget.gadgetbridge.util.GB;
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import static android.bluetooth.le.ScanSettings.MATCH_MODE_STICKY;
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import static android.bluetooth.le.ScanSettings.SCAN_MODE_LOW_LATENCY;
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public class DiscoveryActivity extends GBActivity implements AdapterView.OnItemClickListener {
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private static final Logger LOG = LoggerFactory.getLogger(DiscoveryActivity.class);
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private static final long SCAN_DURATION = 60000; // 60s
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private ScanCallback newLeScanCallback = null;
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private final Handler handler = new Handler();
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private final BroadcastReceiver bluetoothReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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switch (intent.getAction()) {
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case BluetoothAdapter.ACTION_DISCOVERY_STARTED:
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if (isScanning != Scanning.SCANNING_BTLE && isScanning != Scanning.SCANNING_NEW_BTLE) {
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discoveryStarted(Scanning.SCANNING_BT);
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}
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break;
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case BluetoothAdapter.ACTION_DISCOVERY_FINISHED:
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// continue with LE scan, if available
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if (isScanning == Scanning.SCANNING_BT) {
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checkAndRequestLocationPermission();
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if (GBApplication.isRunningLollipopOrLater()) {
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startDiscovery(Scanning.SCANNING_NEW_BTLE);
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} else {
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startDiscovery(Scanning.SCANNING_BTLE);
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}
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} else {
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discoveryFinished();
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}
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break;
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case BluetoothAdapter.ACTION_STATE_CHANGED:
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int oldState = intent.getIntExtra(BluetoothAdapter.EXTRA_PREVIOUS_STATE, BluetoothAdapter.STATE_OFF);
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int newState = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.STATE_OFF);
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bluetoothStateChanged(oldState, newState);
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break;
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case BluetoothDevice.ACTION_FOUND: {
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BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
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short rssi = intent.getShortExtra(BluetoothDevice.EXTRA_RSSI, GBDevice.RSSI_UNKNOWN);
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handleDeviceFound(device, rssi);
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break;
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}
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case BluetoothDevice.ACTION_BOND_STATE_CHANGED: {
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BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
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if (device != null && device.getAddress().equals(bondingAddress)) {
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int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, BluetoothDevice.BOND_NONE);
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if (bondState == BluetoothDevice.BOND_BONDED) {
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GB.toast(DiscoveryActivity.this, "Successfully bonded with: " + bondingAddress, Toast.LENGTH_SHORT, GB.INFO);
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finish();
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}
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}
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}
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}
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}
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};
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private final BluetoothAdapter.LeScanCallback leScanCallback = new BluetoothAdapter.LeScanCallback() {
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@Override
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public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
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LOG.warn(device.getName() + ": " + ((scanRecord != null) ? scanRecord.length : -1));
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logMessageContent(scanRecord);
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handleDeviceFound(device, (short) rssi);
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}
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};
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// why use a method to to get callback?
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// because this callback need API >= 21
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// we cant add @TARGETAPI("Lollipop") at class header
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// so use a method woth SDK check to return this callback
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private ScanCallback getScanCallback() {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
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newLeScanCallback = new ScanCallback() {
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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@Override
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public void onScanResult(int callbackType, ScanResult result) {
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super.onScanResult(callbackType, result);
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try {
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LOG.warn(result.getDevice().getName() + ": " +
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((result.getScanRecord() != null) ? result.getScanRecord().getBytes().length : -1));
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//logMessageContent(result.getScanRecord().getBytes());
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handleDeviceFound(result.getDevice(), (short) result.getRssi());
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} catch (NullPointerException e) {
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LOG.warn("Error handling scan result", e);
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}
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}
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};
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}
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return newLeScanCallback;
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}
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public void logMessageContent(byte[] value) {
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if (value != null) {
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for (byte b : value) {
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LOG.warn("DATA: " + String.format("0x%2x", b) + " - " + (char) (b & 0xff));
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}
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}
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}
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private final Runnable stopRunnable = new Runnable() {
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@Override
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public void run() {
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stopDiscovery();
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}
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};
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private ProgressBar progressView;
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private BluetoothAdapter adapter;
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private final ArrayList<GBDeviceCandidate> deviceCandidates = new ArrayList<>();
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private DeviceCandidateAdapter cadidateListAdapter;
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private Button startButton;
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private Scanning isScanning = Scanning.SCANNING_OFF;
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private String bondingAddress;
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private enum Scanning {
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SCANNING_BT,
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SCANNING_BTLE,
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SCANNING_NEW_BTLE,
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SCANNING_OFF
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}
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_discovery);
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startButton = (Button) findViewById(R.id.discovery_start);
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startButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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onStartButtonClick(startButton);
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}
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});
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progressView = (ProgressBar) findViewById(R.id.discovery_progressbar);
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progressView.setProgress(0);
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progressView.setIndeterminate(true);
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progressView.setVisibility(View.GONE);
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ListView deviceCandidatesView = (ListView) findViewById(R.id.discovery_deviceCandidatesView);
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cadidateListAdapter = new DeviceCandidateAdapter(this, deviceCandidates);
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deviceCandidatesView.setAdapter(cadidateListAdapter);
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deviceCandidatesView.setOnItemClickListener(this);
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IntentFilter bluetoothIntents = new IntentFilter();
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bluetoothIntents.addAction(BluetoothDevice.ACTION_FOUND);
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bluetoothIntents.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
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bluetoothIntents.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
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bluetoothIntents.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
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bluetoothIntents.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
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registerReceiver(bluetoothReceiver, bluetoothIntents);
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startDiscovery();
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}
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@Override
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protected void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putParcelableArrayList("deviceCandidates", deviceCandidates);
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}
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@Override
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protected void onRestoreInstanceState(Bundle savedInstanceState) {
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super.onRestoreInstanceState(savedInstanceState);
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ArrayList<Parcelable> restoredCandidates = savedInstanceState.getParcelableArrayList("deviceCandidates");
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if (restoredCandidates != null) {
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deviceCandidates.clear();
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for (Parcelable p : restoredCandidates) {
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deviceCandidates.add((GBDeviceCandidate) p);
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}
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}
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}
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public void onStartButtonClick(View button) {
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LOG.debug("Start Button clicked");
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if (isScanning()) {
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stopDiscovery();
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} else {
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startDiscovery();
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}
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}
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@Override
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protected void onDestroy() {
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try {
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unregisterReceiver(bluetoothReceiver);
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} catch (IllegalArgumentException e) {
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LOG.warn("Tried to unregister Bluetooth Receiver that wasn't registered.");
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}
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super.onDestroy();
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}
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private void handleDeviceFound(BluetoothDevice device, short rssi) {
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LOG.debug("found device: " + device.getName() + ", " + device.getAddress());
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if (LOG.isDebugEnabled()) {
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ParcelUuid[] uuids = device.getUuids();
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if (uuids != null && uuids.length > 0) {
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for (ParcelUuid uuid : uuids) {
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LOG.debug(" supports uuid: " + uuid.toString());
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}
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}
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}
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if (device.getBondState() == BluetoothDevice.BOND_BONDED) {
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return; // ignore already bonded devices
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}
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GBDeviceCandidate candidate = new GBDeviceCandidate(device, rssi);
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if (DeviceHelper.getInstance().isSupported(candidate)) {
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int index = deviceCandidates.indexOf(candidate);
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if (index >= 0) {
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deviceCandidates.set(index, candidate); // replace
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} else {
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deviceCandidates.add(candidate);
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}
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cadidateListAdapter.notifyDataSetChanged();
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}
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}
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/**
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* Pre: bluetooth is available, enabled and scanning is off.
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* Post: BT is discovering
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*/
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private void startDiscovery() {
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if (isScanning()) {
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LOG.warn("Not starting discovery, because already scanning.");
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return;
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}
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startDiscovery(Scanning.SCANNING_BT);
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}
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private void startDiscovery(Scanning what) {
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LOG.info("Starting discovery: " + what);
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discoveryStarted(what); // just to make sure
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if (ensureBluetoothReady()) {
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if (what == Scanning.SCANNING_BT) {
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startBTDiscovery();
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} else if (what == Scanning.SCANNING_BTLE) {
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if (GB.supportsBluetoothLE()) {
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startBTLEDiscovery();
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} else {
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discoveryFinished();
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}
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} else if (what == Scanning.SCANNING_NEW_BTLE) {
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if (GB.supportsBluetoothLE()) {
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startNEWBTLEDiscovery();
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} else {
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discoveryFinished();
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}
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}
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} else {
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discoveryFinished();
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Toast.makeText(this, "Enable Bluetooth to discover devices.", Toast.LENGTH_LONG).show();
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}
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}
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private boolean isScanning() {
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return isScanning != Scanning.SCANNING_OFF;
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}
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private void stopDiscovery() {
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LOG.info("Stopping discovery");
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if (isScanning()) {
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Scanning wasScanning = isScanning;
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// unfortunately, we don't always get a call back when stopping the scan, so
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// we do it manually; BEFORE stopping the scan!
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discoveryFinished();
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if (wasScanning == Scanning.SCANNING_BT) {
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stopBTDiscovery();
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} else if (wasScanning == Scanning.SCANNING_BTLE) {
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stopBTLEDiscovery();
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} else if (wasScanning == Scanning.SCANNING_NEW_BTLE) {
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stopNewBTLEDiscovery();
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}
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handler.removeMessages(0, stopRunnable);
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}
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}
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private void stopBTLEDiscovery() {
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adapter.stopLeScan(leScanCallback);
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}
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private void stopBTDiscovery() {
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adapter.cancelDiscovery();
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}
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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private void stopNewBTLEDiscovery() {
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adapter.getBluetoothLeScanner().stopScan(newLeScanCallback);
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}
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private void bluetoothStateChanged(int oldState, int newState) {
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discoveryFinished();
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if (newState == BluetoothAdapter.STATE_ON) {
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this.adapter = BluetoothAdapter.getDefaultAdapter();
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startButton.setEnabled(true);
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} else {
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this.adapter = null;
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startButton.setEnabled(false);
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}
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}
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private void discoveryFinished() {
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isScanning = Scanning.SCANNING_OFF;
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progressView.setVisibility(View.GONE);
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startButton.setText(getString(R.string.discovery_start_scanning));
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}
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private void discoveryStarted(Scanning what) {
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isScanning = what;
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progressView.setVisibility(View.VISIBLE);
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startButton.setText(getString(R.string.discovery_stop_scanning));
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}
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private boolean ensureBluetoothReady() {
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boolean available = checkBluetoothAvailable();
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startButton.setEnabled(available);
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if (available) {
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adapter.cancelDiscovery();
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// must not return the result of cancelDiscovery()
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// appears to return false when currently not scanning
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return true;
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}
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return false;
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}
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private boolean checkBluetoothAvailable() {
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BluetoothManager bluetoothService = (BluetoothManager) getSystemService(BLUETOOTH_SERVICE);
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if (bluetoothService == null) {
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LOG.warn("No bluetooth available");
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this.adapter = null;
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return false;
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}
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BluetoothAdapter adapter = bluetoothService.getAdapter();
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if (adapter == null) {
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LOG.warn("No bluetooth available");
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this.adapter = null;
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return false;
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}
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if (!adapter.isEnabled()) {
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LOG.warn("Bluetooth not enabled");
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Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
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startActivity(enableBtIntent);
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this.adapter = null;
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return false;
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}
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this.adapter = adapter;
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return true;
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}
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// New BTLE Discovery use startScan (List<ScanFilter> filters,
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// ScanSettings settings,
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// ScanCallback callback)
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// Its added on API21
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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private void startNEWBTLEDiscovery() {
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// Only use new APi when user use Lollipop+ device
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LOG.info("Start New BTLE Discovery");
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handler.removeMessages(0, stopRunnable);
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handler.sendMessageDelayed(getPostMessage(stopRunnable), SCAN_DURATION);
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adapter.getBluetoothLeScanner().startScan(null, getScanSettings(), getScanCallback());
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}
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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private ScanSettings getScanSettings() {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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return new ScanSettings.Builder()
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.setScanMode(SCAN_MODE_LOW_LATENCY)
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.setMatchMode(MATCH_MODE_STICKY)
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.build();
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} else {
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return new ScanSettings.Builder()
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.setScanMode(SCAN_MODE_LOW_LATENCY)
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.build();
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}
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}
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private void startBTLEDiscovery() {
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LOG.info("Starting BTLE Discovery");
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handler.removeMessages(0, stopRunnable);
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handler.sendMessageDelayed(getPostMessage(stopRunnable), SCAN_DURATION);
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adapter.startLeScan(leScanCallback);
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}
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private void startBTDiscovery() {
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LOG.info("Starting BT Discovery");
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handler.removeMessages(0, stopRunnable);
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handler.sendMessageDelayed(getPostMessage(stopRunnable), SCAN_DURATION);
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adapter.startDiscovery();
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}
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private void checkAndRequestLocationPermission() {
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if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
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ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, 0);
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}
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}
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private Message getPostMessage(Runnable runnable) {
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Message m = Message.obtain(handler, runnable);
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m.obj = runnable;
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return m;
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}
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@Override
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public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
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GBDeviceCandidate deviceCandidate = deviceCandidates.get(position);
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if (deviceCandidate == null) {
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LOG.error("Device candidate clicked, but item not found");
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return;
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}
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stopDiscovery();
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DeviceCoordinator coordinator = DeviceHelper.getInstance().getCoordinator(deviceCandidate);
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Class<? extends Activity> pairingActivity = coordinator.getPairingActivity();
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if (pairingActivity != null) {
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Intent intent = new Intent(this, pairingActivity);
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intent.putExtra(DeviceCoordinator.EXTRA_DEVICE_MAC_ADDRESS, deviceCandidate.getMacAddress());
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startActivity(intent);
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} else {
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try {
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BluetoothDevice btDevice = adapter.getRemoteDevice(deviceCandidate.getMacAddress());
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if (btDevice.createBond()) {
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// async, wait for bonding event to finish this activity
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bondingAddress = btDevice.getAddress();
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}
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} catch (Exception e) {
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LOG.error("Error pairing device: " + deviceCandidate.getMacAddress());
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}
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}
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}
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}
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