Serial Port Api Sample Demo

/* * Copyright 2009 Cedric Priscal * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android_serialport_api.sample; import java.io.IOException; import java.util.Arrays; import android.annotation.SuppressLint; import android.os.Bundle; import android.view.KeyEvent; import android.widget.EditText; import android.widget.TextView; import android.widget.TextView.OnEditorActionListener; import android_serialport_api.Nfc; public class ConsoleActivity extends SerialPortActivity { EditText mReception; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.console); // setTitle("Loopback test"); mReception = (EditText) findViewById(R.id.EditTextReception); EditText Emission = (EditText) findViewById(R.id.EditTextEmission); Emission.setOnEditorActionListener(new OnEditorActionListener() { public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { int i; CharSequence t = v.getText(); char[] text = new char[t.length()]; for (i=0; i<t.length(); i++) { text[i] = t.charAt(i); } try { mOutputStream.write(new String(text).getBytes()); mOutputStream.write('\n'); } catch (IOException e) { e.printStackTrace(); } return false; } }); } @Override protected void onDataReceived(final byte[] buffer, final int size) { int cardtype,check; int[] cardnumber; Nfc nfc=new Nfc(); byte[] frameHeader=new byte[2]; System.arraycopy(buffer, 0, frameHeader, 0, 2); nfc.setFrameHeader(bytesToHexString(frameHeader)); byte[] CardTypes=new byte[1]; System.arraycopy(buffer, 2, CardTypes, 0, 1); cardtype=CardTypes[0] & 0xFF; nfc.setCardType(bytesToHexString(CardTypes)); byte[] CardNumbers=new byte[size-4]; System.arraycopy(buffer, 3, CardNumbers, 0, size-4); cardnumber=bytetoInteger(CardNumbers); nfc.setCardNumber(bytesToHexString(CardNumbers)); byte[] checkStr=new byte[1]; System.arraycopy(buffer, size-1, checkStr, 0, 1); check=checkStr[0] & 0xFF; nfc.setCheckStr(bytesToHexString(checkStr)); boolean f=xor(cardtype,cardnumber,check); final String bb="帧头："+nfc.getFrameHeader()+"卡类型："+nfc.getCardType()+"卡号："+nfc.getCardNumber()+"校验字节"+nfc.getCheckStr()+"是否校验成功:"+f; runOnUiThread(new Runnable() { public void run() { if (mReception != null) { mReception.append(bb); } } }); } /** * 校验 异或 运算 * @param cardType 卡类型 * @param cardNumber 卡号 * @param check 校验 * @return */ public boolean xor(int cardType,int[] cardNumber,int check){ System.out.println("=====cardType======="+cardType); for(int i=0;i<cardNumber.length;i++){ cardType=cardType^cardNumber[i]; } if(check==cardType){ return true; } return false; } public int[] bytetoInteger(byte[] src){ int[] ints=new int[src.length]; if (src == null || src.length <= 0) { return null; } for (int i = 0; i < src.length; i++) { int v = src[i] & 0xFF; ints[i]=v; } return ints; } public String bytesToHexString(byte[] src){ StringBuilder stringBuilder = new StringBuilder(); if (src == null || src.length <= 0) { return null; } for (int i = 0; i < src.length; i++) { int v = src[i] & 0xFF; String hv = Integer.toHexString(v); if (hv.length() < 2) { stringBuilder.append(0); } stringBuilder.append(hv); } return stringBuilder.toString(); } }