在Android中,可以使用BluetoothAdapter類來實現藍牙傳輸數據的功能。以下是實現藍牙傳輸數據的基本步驟:
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
// 設備不支持藍牙功能
}
if (!bluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
bluetoothAdapter.startDiscovery();
// 在BroadcastReceiver中處理掃描到的設備
private final BroadcastReceiver receiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
// 連接設備
device.connectGatt(context, false, gattCallback);
}
}
};
// 在BluetoothGattCallback中處理數據傳輸
private final BluetoothGattCallback gattCallback = new BluetoothGattCallback() {
...
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
BluetoothGattService service = gatt.getService(SERVICE_UUID);
BluetoothGattCharacteristic characteristic = service.getCharacteristic(CHARACTERISTIC_UUID);
// 發送數據
characteristic.setValue(data);
gatt.writeCharacteristic(characteristic);
// 接收數據
gatt.setCharacteristicNotification(characteristic, true);
}
}
...
};
以上是基本的藍牙傳輸數據的實現步驟,具體實現還需根據需求進行進一步處理。