Example usage for android.nfc Tag CREATOR

Introduction

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

Prototype

Parcelable.Creator CREATOR

To view the source code for android.nfc Tag CREATOR.

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Usage

From source file:Main.java

/**
 * Repairs the broken tag on HTC devices running Android 5.x
 * <p/>/*from w w  w.  j a  va 2 s.co 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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