Example usage for android.bluetooth BluetoothGattCharacteristic FORMAT_UINT32

Introduction

In this page you can find the example usage for android.bluetooth BluetoothGattCharacteristic FORMAT_UINT32.

Prototype

int FORMAT_UINT32

To view the source code for android.bluetooth BluetoothGattCharacteristic FORMAT_UINT32.

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Document

Characteristic value format type uint32

Usage

From source file:no.nordicsemi.android.nrftoolbox.dfu.DfuService.java

/**
 * Writes the image size to the characteristic. This method is SYNCHRONOUS and wait until the {@link BluetoothGattCallback#onCharacteristicWrite(BluetoothGatt, BluetoothGattCharacteristic, int)}
 * will be called or the connection state will change from {@link #STATE_CONNECTED_AND_READY}. If connection state will change, or an error will occur, an exception will be thrown.
 * //from w ww  .  ja v a 2 s  . c  o m
 * @param gatt
 *            the GATT device
 * @param characteristic
 *            the characteristic to write to. Should be the DFU PACKET
 * @param imageSize
 *            the image size in bytes
 * @throws DeviceDisconnectedException
 * @throws DfuException
 * @throws UploadAbortedException
 */
private void writeImageSize(final BluetoothGatt gatt, final BluetoothGattCharacteristic characteristic,
        final int imageSize) throws DeviceDisconnectedException, DfuException, UploadAbortedException {
    mReceivedData = null;
    mErrorState = 0;
    mImageSizeSent = false;

    characteristic.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_NO_RESPONSE);
    characteristic.setValue(imageSize, BluetoothGattCharacteristic.FORMAT_UINT32, 0);
    gatt.writeCharacteristic(characteristic);

    // We have to wait for confirmation
    try {
        synchronized (mLock) {
            while ((mImageSizeSent == false && mConnectionState == STATE_CONNECTED_AND_READY && mErrorState == 0
                    && !mAborted) || mPaused)
                mLock.wait();
        }
    } catch (final InterruptedException e) {
        loge("Sleeping interrupted", e);
    }
    if (mAborted)
        throw new UploadAbortedException();
    if (mErrorState != 0)
        throw new DfuException("Unable to write Image Size", mErrorState);
    if (mConnectionState != STATE_CONNECTED_AND_READY)
        throw new DeviceDisconnectedException("Unable to write Image Size", mConnectionState);
}

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