@Override
public void updateAccelerometerValues(
BluetoothGatt gatt, int accelX, int accelY, int accelZ, int gyroX, int gyroY, int gyroZ) {
Log.d(
TAG,
String.format(
"DEVICE: %s ACCELEROMETER: X: %d Y: %d Z: %d",
gatt.getDevice(), accelX, accelY, accelZ));
Log.d(
TAG,
String.format(
"DEVICE: %s GYROSCOPE: X: %d Y: %d Z: %d", gatt.getDevice(), gyroX, gyroY, gyroZ));
if (mMultiBleService.getSelectedDevices() != null) {
// Get the position of the device in the connected devices' list
int position = mMultiBleService.getSelectedDevices().indexOf(gatt.getDevice());
// Update the accelerometer's value in the device's data and notify the listView adapter.
mDevicesData
.get(position)
.put(
"accelerometer",
String.format(
Locale.getDefault(), "Accel. values: %d, %d, %d", accelX, accelY, accelZ));
((BaseAdapter) mDevicesListView.getAdapter()).notifyDataSetChanged();
}
}
private void checkForPermissions() {
if (!hasPermissions(this)) {
ActivityCompat.requestPermissions(
this,
new String[] {
Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION
},
PERMISSION_LOCATION_REQUEST_CODE);
mMultiBleService.setupBluetoothConnection();
} else {
mMultiBleService.setupBluetoothConnection();
}
}
@Override
protected void onResume() {
super.onResume();
// Enable Bluetooth Service if it's not enabled yet.
if (mMultiBleService.getBluetoothAdapter() == null
|| !mMultiBleService.getBluetoothAdapter().isEnabled()) {
Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivity(intent);
return;
}
// Check for BLE Support.
if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
String message = getResources().getString(R.string.error_no_ble_support);
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
finish();
}
}
@Override
public void onClick(View v) {
String title = mContext.getResources().getString(R.string.dialog_title_inr_scan);
String message = mContext.getResources().getString(R.string.action_scanning_devices);
final ProgressDialog progressDialog =
ProgressDialog.show(MainActivity.this, title, message, true);
mMultiBleService.disconnectFromDevices();
mMultiBleService.startScan(
new Runnable() {
@Override
public void run() {
mMultiBleService.stopScan();
progressDialog.dismiss();
showAvailableBleDevices();
}
});
}
@Override
public void onClick(View v) {
mMultiBleService.disconnectFromDevices();
Handler handler = new Handler();
handler.postDelayed(
new Runnable() {
public void run() {
// Wait 200 milliseconds until accelerometer's is not sending more data
mDevicesData.clear();
((BaseAdapter) mDevicesListView.getAdapter()).notifyDataSetChanged();
}
},
200);
mButtonDisconnect.setEnabled(false);
mButtonScan.setEnabled(true);
mTextStatus.setText(getString(R.string.no_connected_devices));
mTextStatus.setTextColor(getResources().getColor(R.color.red));
}
@Override
protected void onStop() {
super.onStop();
mMultiBleService.disconnectFromDevices();
}
private void showAvailableBleDevices() {
String title = getResources().getString(R.string.dialog_title_select_devices);
final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(MainActivity.this);
dialogBuilder.setTitle(title);
// ArrayList to keep the selected devices
final ArrayList<Integer> selectedItems = new ArrayList<>();
ArrayList<String> devicesList = new ArrayList<>();
// Get the list of available devices
for (int i = 0; i < mMultiBleService.getBluetoothDevices().size(); i++) {
BluetoothDevice device = mMultiBleService.getBluetoothDevices().valueAt(i);
devicesList.add(String.format("%s %s", device.getName(), device.getAddress()));
}
CharSequence[] devicesArray = devicesList.toArray(new CharSequence[devicesList.size()]);
// Create alert dialog with multi-choice items
dialogBuilder
.setMultiChoiceItems(
devicesArray,
null,
new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int indexSelected, boolean isChecked) {
if (isChecked) {
// If the user checked the item, add it to the selected items
selectedItems.add(indexSelected);
} else if (selectedItems.contains(indexSelected)) {
// Else, if the item is already in the array, remove it
selectedItems.remove(Integer.valueOf(indexSelected));
}
}
})
.setPositiveButton(
getString(R.string.action_connect),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
// Save the selected items' references
ArrayList<BluetoothDevice> selectedDevices = new ArrayList<>();
for (int i = 0; i < selectedItems.size(); i++) {
selectedDevices.add(
mMultiBleService.getBluetoothDevices().valueAt(selectedItems.get(i)));
}
Log.i(TAG, String.format("Selected devices: %s", selectedDevices.toString()));
// Connect with the devices
mMultiBleService.connectToDevices(selectedDevices);
mButtonScan.setEnabled(false);
mButtonDisconnect.setEnabled(true);
dialog.dismiss();
}
})
.setNegativeButton(
"Cancel",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
})
.create();
dialogBuilder.show();
}