package com.example.mynfcdemon;
import java.io.IOException;
import android.nfc.tech.NfcV;
public class NfcVUtil {
private NfcV mNfcV;
//UID数组行式
private byte[] ID;
private String UID;
private String DSFID;
private String AFI;
//block的个数
private int blockNumber;
//一个block长度
private int oneBlockSize;
//信息
private byte[] infoRmation;
/*@function :初始化
@param ：mNfcV NfcV对象
@return :返回内容byte[]
@author： :Demon 503536038@qq.com
*/
public NfcVUtil(NfcV mNfcV) throws IOException{
this.mNfcV = mNfcV;
ID = this.mNfcV.getTag().getId();
byte[] uid = new byte[ID.length];
int j = 0;
for(int i = ID.length - 1; i>=0; i-- ){
uid[j] = ID[i];
j ;
}
this.UID = printHexString(uid);
getInfoRmation();
System.out.println("UID:" getUID()
"AFI:" getAFI()
"DSFID:" getDSFID()
"BlockNumber:" getBlockNumber()
"BlockSize:" getOneBlockSize());
}
public String getUID() {
return UID;
}
/*@function :取得标签信息
@return :返回内容byte[]
@author： :Demon 503536038@qq.com
*/
private byte[] getInfoRmation() throws IOException{
byte[] cmd = new byte[10];
cmd[0] = (byte) 0x22; //flag
cmd[1] = (byte) 0x2B; //command
System.arraycopy(ID, 0, cmd, 2, ID.length); // UID
infoRmation = mNfcV.transceive(cmd);
blockNumber = infoRmation[12];
oneBlockSize = infoRmation[13];
AFI = printHexString(new byte[]{infoRmation[11]});
DSFID = printHexString(new byte[]{infoRmation[10]});
return infoRmation;
}
public String getDSFID() {
return DSFID;
}
public String getAFI() {
return AFI;
}
public int getBlockNumber(){
return blockNumber 1;
}
public int getOneBlockSize() {
return oneBlockSize 1;
}
/*@function :读取一个位置在position的block
@param :position 要读取的block位置
@return :返回内容字符串
@author： :Demon 503536038@qq.com
*/
public String readOneBlock(int position) throws IOException{
byte cmd[] = new byte[11];
cmd[0] = (byte) 0x22;
cmd[1] = (byte) 0x20;
System.arraycopy(ID, 0, cmd, 2, ID.length); //UID
cmd[10] = (byte) position;
byte res[] = mNfcV.transceive(cmd);
for(int i=0; i < res.length; i ){
System.out.println("/" res[i]);
}
String r = new String(res);
System.out.println("/" r);
if(res[0] == 0x00){
byte block[] = new byte[res.length - 1];
System.arraycopy(res, 1, block, 0, res.length - 1);
//return printHexString(block);
String blockstr = new String(block);
return blockstr;
}
return null;
}
/*@function :读取从begin开始end个block
@instructions :begin count 不能超过blockNumber
@param :begin block开始位置
@param :count 读取block数量
@return :返回内容字符串
@author： :Demon 503536038@qq.com
*/
public String readBlocks(int begin, int count) throws IOException{
if((begin count)>blockNumber){
count = blockNumber - begin;
}
StringBuffer data = new StringBuffer();
for(int i = begin; i<=count begin; i ){
data.append(readOneBlock(i));
}
return data.toString();
}
/* 将byte[]转换成16进制字符串
@param data 要转换成字符串的字节数组
@return 16进制字符串
*/
private String printHexString(byte[] data) {
StringBuffer s = new StringBuffer();;
for (int i = 0; i < data.length; i ) {
String hex = Integer.toHexString(data[i] & 0xFF);
if (hex.length() == 1) {
hex = '0' hex;
}
s.append(hex);
}
return s.toString();
}
/* 将数据写入到block,
@param position 要写内容的block位置
@param data 要写的内容,必须长度为blockOneSize
@return false为写入失败，true为写入成功
@throws IOException */
public boolean writeBlock(int position, byte[] data) throws IOException{
byte cmd[] = new byte[15];
cmd[0] = (byte) 0x22;
cmd[1] = (byte) 0x21;
System.arraycopy(ID, 0, cmd, 2, ID.length);// UID
//block
cmd[10] = (byte) position;
//value
System.arraycopy(data, 0, cmd, 11, data.length);
byte[]rsp = mNfcV.transceive(cmd);
if(rsp[0] == 0x00){
return true;
}
return false;
}
public boolean writeStrToTag(String str){
return false;
}
}资源文件列表
.project , 846
.settings/org.eclipse.core.resources.prefs , 57
.settings/org.eclipse.jdt.core.prefs , 177
AndroidManifest.xml , 1840
bin/AndroidManifest.xml , 1840
bin/classes.dex , 697932
bin/classes/com/example/mynfcdemon/BuildConfig.class , 353
bin/classes/com/example/mynfcdemon/MainActivity.class , 525
bin/classes/com/example/mynfcdemon/NfcVUtil.class , 3940
bin/classes/com/example/mynfcdemon/R$attr.class , 352
bin/classes/com/example/mynfcdemon/R$color.class , 670
bin/classes/com/example/mynfcdemon/R$dimen.class , 473
bin/classes/com/example/mynfcdemon/R$drawable.class , 419
bin/classes/com/example/mynfcdemon/R$id.class , 473
bin/classes/com/example/mynfcdemon/R$layout.class , 449
bin/classes/com/example/mynfcdemon/R$menu.class , 400
bin/classes/com/example/mynfcdemon/R$string.class , 834
bin/classes/com/example/mynfcdemon/R$style.class , 443
bin/classes/com/example/mynfcdemon/R$xml.class , 408
bin/classes/com/example/mynfcdemon/R.class , 813
bin/classes/com/example/mynfcdemon/TagView.class , 6582
bin/dexedLibs/android-support-v4-90d8f11863b602056311c28a6ba9075e.jar , 232610
bin/jarlist.cache , 120
bin/MyNFCDemon.apk , 284426
bin/resources.ap_ , 43515
bin/res/crunch/drawable-hdpi/ic_launcher.png , 5964
bin/res/crunch/drawable-mdpi/ic_launcher.png , 3112
bin/res/crunch/drawable-xhdpi/ic_launcher.png , 9355
bin/res/crunch/drawable-xxhdpi/ic_launcher.png , 17889
gen/com/example/mynfcdemon/BuildConfig.java , 164
gen/com/example/mynfcdemon/R.java , 3927
ic_launcher-web.png , 51394
libs/android-support-v4.jar , 621451
proguard-project.txt , 781
project.properties , 563
res/drawable-hdpi/ic_launcher.png , 7658
res/drawable-mdpi/ic_launcher.png , 3777
res/drawable-xhdpi/ic_launcher.png , 12516
res/drawable-xxhdpi/ic_launcher.png , 24777
res/layout/activity_main.xml , 1024
res/layout/tag_vierwr.xml , 1387
res/menu/main.xml , 263
res/values-sw600dp/dimens.xml , 203
res/values-sw720dp-land/dimens.xml , 277
res/values-v11/styles.xml , 334
res/values-v14/styles.xml , 391
res/values/color.xml , 482
res/values/dimens.xml , 220
res/values/strings.xml , 806
res/values/styles.xml , 697
res/xml/nfc_tech_filter.xml , 302
src/com/example/mynfcdemon/MainActivity.java , 484
src/com/example/mynfcdemon/NfcVUtil.java , 4338
src/com/example/mynfcdemon/TagView.java , 7469