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Code Issues Releases Wiki Activity

experimental Bluetooth device connection with new API.

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OliE
2018-01-31 21:20:15 +01:00
parent 89c990a6b5
commit e3fdf396b3
1 changed files with 46 additions and 39 deletions
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85
android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothCommunication.java
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@@ -23,7 +23,10 @@ import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothProfile;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.util.Log;
@@ -46,12 +49,12 @@ public abstract class BluetoothCommunication {
protected Context context;
private Handler callbackBtHandler;
private BluetoothGatt bluetoothGatt;
private static BluetoothGatt bluetoothGatt;
protected BluetoothGattCallback gattCallback;
private BluetoothAdapter.LeScanCallback scanCallback;
protected BluetoothAdapter btAdapter;
private Handler searchHandler;
private String btDeviceName;
public boolean isReceiverRegistered;
private int cmdStepNr;
private int initStepNr;
@@ -67,8 +70,9 @@ public abstract class BluetoothCommunication {
this.context = context;
btAdapter = BluetoothAdapter.getDefaultAdapter();
searchHandler = new Handler();
scanCallback = null;
gattCallback = new GattCallback();
isReceiverRegistered = false;
bluetoothGatt = null;
}
/**
@@ -411,57 +415,60 @@ public abstract class BluetoothCommunication {
public void startSearching(String deviceName) {
btDeviceName = deviceName;
if (scanCallback == null)
{
scanCallback = new BluetoothAdapter.LeScanCallback()
{
@Override
public void onLeScan(final BluetoothDevice device, int rssi, byte[] scanRecord) {
try {
if (device.getName() == null) {
return;
}
IntentFilter filter = new IntentFilter();
if (device.getName().toLowerCase().equals(btDeviceName.toLowerCase())) {
Log.d("BluetoothCommunication", btDeviceName + " found trying to connect...");
filter.addAction(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
searchHandler.removeCallbacksAndMessages(null);
btAdapter.stopLeScan(scanCallback);
bluetoothGatt = device.connectGatt(context, false, gattCallback);
}
} catch (Exception e) {
setBtStatus(BT_STATUS_CODE.BT_UNEXPECTED_ERROR, e.getMessage());
}
}
};
}
searchHandler.postDelayed(new Runnable()
{
@Override
public void run()
{
btAdapter.stopLeScan(scanCallback);
setBtStatus(BT_STATUS_CODE.BT_NO_DEVICE_FOUND);
}
}, 10000);
btAdapter.startLeScan(scanCallback);
context.registerReceiver(mReceiver, filter);
isReceiverRegistered = true;
btAdapter.startDiscovery();
}
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
//discovery finishes, dismis progress dialog
if (bluetoothGatt == null) {
setBtStatus(BT_STATUS_CODE.BT_NO_DEVICE_FOUND);
}
} else if (BluetoothDevice.ACTION_FOUND.equals(action)) {
//bluetooth device found
BluetoothDevice device = (BluetoothDevice) intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (device.getName() == null) {
return;
}
if (device.getName().toLowerCase().equals(btDeviceName.toLowerCase())) {
Log.d("BluetoothCommunication", btDeviceName + " found trying to connect...");
bluetoothGatt = device.connectGatt(context, true, gattCallback);
}
}
}
};
/**
* Stop searching for a Bluetooth device
*/
public void stopSearching() {
if (bluetoothGatt != null)
{
bluetoothGatt.disconnect();
bluetoothGatt.close();
bluetoothGatt = null;
}
if (isReceiverRegistered == true) {
context.unregisterReceiver(mReceiver);
isReceiverRegistered = false;
}
searchHandler.removeCallbacksAndMessages(null);
btAdapter.stopLeScan(scanCallback);
btAdapter.cancelDiscovery();
}
/**