284 lines
9.3 KiB
Java
284 lines
9.3 KiB
Java
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package cordova.plugin.uhf;
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import android.os.Message;
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import android.util.Log;
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import cn.pda.serialport.Tools;
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import com.handheld.uhfr.UHFRManager;
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import com.uhf.api.cls.Reader;
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import org.apache.cordova.CallbackContext;
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import org.apache.cordova.CordovaPlugin;
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import org.apache.cordova.PluginResult;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.util.*;
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/**
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* 超高频（UHF）读写卡插件。
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* 因不同的机型使用的so库不同，故无法适配所有机型。
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*/
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public class UHF extends CordovaPlugin {
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private UHFRManager manager;
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private String selectedEpc = "";
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private byte[] password = Tools.HexString2Bytes("00000000");
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private boolean threadFlag;
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@Override
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protected void pluginInitialize() {
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super.pluginInitialize();
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manager = UHFRManager.getInstance();
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}
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@Override
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public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
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switch (action) {
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case "readCard":
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this.readCard(callbackContext);
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return true;
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case "searchCard":
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this.searchCard(callbackContext);
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return true;
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case "stopSearchCard":
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this.stopSearchCard(callbackContext);
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return true;
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case "writeCard":
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this.writeCard(args, callbackContext);
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return true;
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case "setPower":
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this.setPower(args, callbackContext);
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return true;
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case "startWork":
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this.startWork(callbackContext);
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return true;
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case "endWork":
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this.endWork(callbackContext);
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return true;
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case "selectCard":
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this.selectCard(args, callbackContext);
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break;
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case "inventoryCard":
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this.inventoryCard(callbackContext);
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return true;
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case "stopInventoryCard":
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this.stopInventoryCard(callbackContext);
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return true;
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}
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return false;
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}
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private void startWork(CallbackContext callbackContext) {
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if (this.manager == null) {
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manager = UHFRManager.getInstance();
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}
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callbackContext.success();
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}
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private void endWork(CallbackContext callbackContext) {
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if (this.manager != null) {
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this.manager.close();
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this.manager = null;
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}
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callbackContext.success();
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}
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private void stopInventoryCard(CallbackContext callbackContext) {
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threadFlag = false;
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manager.asyncStopReading();
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callbackContext.success("停止");
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}
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private void inventoryCard(CallbackContext callbackContext) {
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threadFlag = true;
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manager.asyncStartReading();
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Thread thread = new InventoryThread(callbackContext);
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thread.start();
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}
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/**
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* 巡卡，每执行一次，就扫描一次范围内的卡片，将巡到的卡片信息以json数组的形式返回
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*/
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private void searchCard(CallbackContext callbackContext) {
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manager.asyncStartReading();
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try {
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Thread.sleep(100);
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JSONArray ja = onceSearchCard();
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manager.asyncStopReading();
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callbackContext.success(ja);
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} catch (Exception e) {
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callbackContext.error(e.getMessage());
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}
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}
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private JSONArray onceSearchCard() throws JSONException {
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List<Reader.TAGINFO> list1;
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list1 = manager.tagInventoryRealTime();
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String data;
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JSONArray ja = new JSONArray();
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JSONObject jo;
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if (list1 != null && list1.size() > 0) {
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for (Reader.TAGINFO tfs : list1) {
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jo = new JSONObject();
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byte[] epcdata = tfs.EpcId;
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data = Tools.Bytes2HexString(epcdata, epcdata.length);
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int rssi = tfs.RSSI;
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jo = new JSONObject();
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jo.put("mEpcBytes", data);
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jo.put("mRssi", rssi);
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ja.put(jo);
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}
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}
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return ja;
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}
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private class InventoryThread extends Thread {
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private CallbackContext cb;
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public InventoryThread(CallbackContext cb) {
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super();
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this.cb = cb;
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}
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public InventoryThread() {
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super();
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}
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@Override
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public void run() {
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super.run();
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try {
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while (threadFlag) {
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JSONArray ja = onceSearchCard();
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PluginResult pr = new PluginResult(PluginResult.Status.OK, ja);
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pr.setKeepCallback(true);
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cb.sendPluginResult(pr);
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Thread.sleep(100);
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}
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} catch (Exception e) {
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cb.error(e.getMessage());
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}
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}
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}
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private void stopSearchCard(CallbackContext callbackContext) {
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manager.asyncStopReading();
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callbackContext.success("巡卡停止");
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}
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/**
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* 读卡，将USER区的hex字符串转换为ascii读取，因EPC区与TID区不能写入，故暂时只读取USER区，注释掉的部分为适应EPC区与TID区读取的代码
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* 将注释解开后应抛出JSONException
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*/
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private void readCard(CallbackContext callbackContext) {
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// JSONObject obj = message.getJSONObject(0);
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// int site = obj.getInt("site");
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// int addr = obj.getInt("addr");
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// if (site == 1) {
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// addr = 2;
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// length = 6;
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// } else if (site == 3) {
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// addr = 0;
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// length = 32;
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// } else if (site == 2) {
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// addr = 0;
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// length = 12;
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// }
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// manager.selectEPC(Tools.HexString2Bytes(this.selectedEpc));
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int length = 32;
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// byte[] data = manager.readFrom6C(3, 0, length, password);
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byte[] data = new byte[length * 2];
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if (this.selectedEpc.length() == 0) {
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manager.getTagData(3, 0, length, data, password, (short) 1000);
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} else {
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data = manager.getTagDataByFilter(3, 0, length, password, (short) 1000, Tools.HexString2Bytes(this.selectedEpc), 1, 0, true);
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}
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if (data != null && data.length >= 1) {
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String msg;
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// if (site == 3) { // 读取User区的时候，将16进制字符串转换为ascii
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msg = Util.bytes2Str(data);
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// } else { // 因EPC区与TID区不能写入，故读取时不转码
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// msg = Tools.Bytes2HexString(data, data.length);
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// }
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callbackContext.success(msg);
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} else {
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callbackContext.error("读取失败");
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}
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}
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/**
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* 选卡，将选到的卡储存在this.selectedEpc中
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*/
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private void selectCard(JSONArray message, CallbackContext callbackContext) throws JSONException {
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JSONObject obj = message.getJSONObject(0);
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String epc = obj.getString("epc");
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// manager.selectEPC(Tools.HexString2Bytes(epc));
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this.selectedEpc = epc;
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callbackContext.success();
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}
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/**
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* 写卡，将ascii转换为bytes并写入
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*/
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private void writeCard(JSONArray message, CallbackContext callbackContext) {
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// manager.selectEPC(Tools.HexString2Bytes(this.selectedEpc));
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String _data = null;
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try {
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JSONObject obj = message.getJSONObject(0);
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_data = Util.str2HexStr(obj.getString("data"));
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} catch (JSONException e) {
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callbackContext.error("JSON解析失败");
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}
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// 处理_data，将ascii转换为16进制字符串，超过32 * 4位的16进制字符串报错，小于32 * 4时在16进制字符串末位补0x00作为完结标记，再转换为bytes
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if (_data != null && _data.length() > 32 * 4) {
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callbackContext.error("数据过长");
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return;
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}
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if (_data.length() < 32 * 4) {
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_data += "00";
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}
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byte[] dataBytes = Util.hexStringToBytes(_data);
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boolean writeFlag = false;
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Reader.READER_ERR er = null;
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if (dataBytes != null) {
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if (this.selectedEpc.length() > 0) {
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er = manager.writeTagDataByFilter((char) 3, 0, dataBytes, dataBytes.length / 2, password, (short) 1000, Tools.HexString2Bytes(this.selectedEpc), 1, 0, true);
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} else {
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er = manager.writeTagData((char) 3, 0, dataBytes, dataBytes.length / 2, password, (short) 1000);
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}
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// writeFlag = manager.writeTo6C(password, 3, 0, dataBytes.length / 2, dataBytes);
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}
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if (er == Reader.READER_ERR.MT_OK_ERR) {
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callbackContext.success("写入成功");
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} else {
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callbackContext.error("写入失败");
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}
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}
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private void setPower(JSONArray message, CallbackContext callbackContext) throws JSONException {
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int power = message.getInt(0);
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if (power > 30) {
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power = 30;
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} else if (power < 5) {
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power = 5;
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}
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Reader.READER_ERR err = manager.setPower(power, power);
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if (err == Reader.READER_ERR.MT_OK_ERR) {
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callbackContext.success("设置成功");
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} else {
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callbackContext.error("设置失败");
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}
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}
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@Override
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public void onDestroy() {
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if (this.manager != null) {
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this.manager.close();
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}
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}
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}
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