Example usage for android.nfc Tag writeToParcel

Introduction

In this page you can find the example usage for android.nfc Tag writeToParcel.

Prototype

@Override
    public void writeToParcel(Parcel dest, int flags) 

Source Link

Usage

From source file:Main.java

/**
 * Repairs the broken tag on HTC devices running Android 5.x
 * <p/>//from w w w .ja v a2  s.c  o  m
 * "It seems, the reason of this bug in TechExtras of NfcA is null. However, TechList contains MifareClassic." -bildin
 * For more information please refer to https://github.com/ikarus23/MifareClassicTool/issues/52#issuecomment-103797115
 * <p/>
 * Code source: https://github.com/ikarus23/MifareClassicTool/issues/52#issuecomment-104277445
 *
 * @param oTag The broken tag
 * @return The fixed tag
 */
public static Tag repairTag(Tag oTag) {
    if (oTag == null)
        return null;

    String[] sTechList = oTag.getTechList();

    Parcel oParcel, nParcel;

    oParcel = Parcel.obtain();
    oTag.writeToParcel(oParcel, 0);
    oParcel.setDataPosition(0);

    int len = oParcel.readInt();
    byte[] id = null;
    if (len >= 0) {
        id = new byte[len];
        oParcel.readByteArray(id);
    }
    int[] oTechList = new int[oParcel.readInt()];
    oParcel.readIntArray(oTechList);
    Bundle[] oTechExtras = oParcel.createTypedArray(Bundle.CREATOR);
    int serviceHandle = oParcel.readInt();
    int isMock = oParcel.readInt();
    IBinder tagService;
    if (isMock == 0) {
        tagService = oParcel.readStrongBinder();
    } else {
        tagService = null;
    }
    oParcel.recycle();

    int nfca_idx = -1;
    int mc_idx = -1;

    for (int idx = 0; idx < sTechList.length; idx++) {
        if (sTechList[idx].equals(NfcA.class.getName())) {
            nfca_idx = idx;
        } else if (sTechList[idx].equals(MifareClassic.class.getName())) {
            mc_idx = idx;
        }
    }

    if (nfca_idx >= 0 && mc_idx >= 0 && oTechExtras[mc_idx] == null) {
        oTechExtras[mc_idx] = oTechExtras[nfca_idx];
    } else {
        return oTag;
    }

    nParcel = Parcel.obtain();
    nParcel.writeInt(id.length);
    nParcel.writeByteArray(id);
    nParcel.writeInt(oTechList.length);
    nParcel.writeIntArray(oTechList);
    nParcel.writeTypedArray(oTechExtras, 0);
    nParcel.writeInt(serviceHandle);
    nParcel.writeInt(isMock);
    if (isMock == 0) {
        nParcel.writeStrongBinder(tagService);
    }
    nParcel.setDataPosition(0);

    Tag nTag = Tag.CREATOR.createFromParcel(nParcel);

    nParcel.recycle();

    return nTag;
}

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