Android Open Source - BLE-MIDI-for-Android Ble Midi Device Utils

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License

The source code is released under:

Apache License

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Java Source Code

package jp.kshoji.blemidi.util;
// w ww. j a  v  a  2  s . c o m
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattService;
import android.content.Context;

import java.util.List;
import java.util.UUID;

import jp.kshoji.blemidi.R;

/**
 * Utility for finding BLE MIDI devices
 *
 * @author K.Shoji
 */
public final class BleMidiDeviceUtils {

    /**
     * Obtains BluetoothGattService for MIDI
     *
     * @param context the context
     * @param bluetoothGatt the gatt of device
     * @return null if no service found
     */
    public static BluetoothGattService getMidiService(final Context context, final BluetoothGatt bluetoothGatt) {
        List<BluetoothGattService> services = bluetoothGatt.getServices();
        String[] uuidStringArray = context.getResources().getStringArray(R.array.uuidListForService);

        for (BluetoothGattService service : services) {
            for (String uuidString : uuidStringArray) {
                UUID uuid = BleUuidUtils.fromString(uuidString);
                if (BleUuidUtils.matches(service.getUuid(), uuid)) {
                    return service;
                }
            }
        }

        return null;
    }

    /**
     * Obtains BluetoothGattCharacteristic for MIDI Input
     *
     * @param context the context
     * @param bluetoothGattService the gatt service of device
     * @return null if no characteristic found
     */
    public static BluetoothGattCharacteristic getMidiInputCharacteristic(final Context context, final BluetoothGattService bluetoothGattService) {
        List<BluetoothGattCharacteristic> characteristics = bluetoothGattService.getCharacteristics();
        String[] uuidStringArray = context.getResources().getStringArray(R.array.uuidListForInputCharacteristic);

        for (BluetoothGattCharacteristic characteristic : characteristics) {
            for (String uuidString : uuidStringArray) {
                UUID uuid = BleUuidUtils.fromString(uuidString);
                if (BleUuidUtils.matches(characteristic.getUuid(), uuid)) {
                    return characteristic;
                }
            }
        }

        return null;
    }

    /**
     * Obtains BluetoothGattCharacteristic for MIDI Output
     *
     * @param context the context
     * @param bluetoothGattService the gatt service of device
     * @return null if no characteristic found
     */
    public static BluetoothGattCharacteristic getMidiOutputCharacteristic(final Context context, final BluetoothGattService bluetoothGattService) {
        List<BluetoothGattCharacteristic> characteristics = bluetoothGattService.getCharacteristics();
        String[] uuidStringArray = context.getResources().getStringArray(R.array.uuidListForOutputCharacteristic);

        for (BluetoothGattCharacteristic characteristic : characteristics) {
            for (String uuidString : uuidStringArray) {
                UUID uuid = BleUuidUtils.fromString(uuidString);
                if (BleUuidUtils.matches(characteristic.getUuid(), uuid)) {
                    return characteristic;
                }
            }
        }

        return null;
    }

}

Java Source Code List