am 73eba2a6: Merge "Return a zero length byte from toByteArray instead of null." into gingerbread

package android.nfc;

import android.nfc.NdefRecord;

import android.os.Parcel;

import android.os.Parcelable;

     * Returns a byte array representation of this entire NDEF message.

     */

    public byte[] toByteArray() {

        //TODO: do not return null

        //TODO: allocate the byte array once, copy each record once

        //TODO: process MB and ME flags outside loop

        if ((mRecords == null) || (mRecords.length == 0))

            return null;

            return new byte[0];

        byte[] msg = {};

        return msg;

    }

    @Override

    public int describeContents() {

        return 0;

    }

    @Override

    public void writeToParcel(Parcel dest, int flags) {

        dest.writeInt(mRecords.length);

        dest.writeTypedArray(mRecords, flags);

    public static final Parcelable.Creator<NdefMessage> CREATOR =

            new Parcelable.Creator<NdefMessage>() {

        @Override

        public NdefMessage createFromParcel(Parcel in) {

            int recordsLength = in.readInt();

            NdefRecord[] records = new NdefRecord[recordsLength];

            in.readTypedArray(records, NdefRecord.CREATOR);

            return new NdefMessage(records);

        }

        @Override

        public NdefMessage[] newArray(int size) {

            return new NdefMessage[size];

        }