Android物联网RFID功能的开发

package com.example.medicalwastepda.mvp.view.test; import android.app.ProgressDialog; import android.media.AudioManager; import android.media.SoundPool; import android.os.AsyncTask; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.text.TextUtils; import android.util.Log; import android.view.KeyEvent; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.recyclerview.widget.RecyclerView; import com.example.common.base.BaseActivity; import com.example.common.uitls.StringUtils; import com.example.medicalwastepda.R; import com.rscja.deviceapi.RFIDWithUHF; import java.util.ArrayList; import java.util.HashMap; import butterknife.BindView; /** * @author Coco * @time 2020/9/15 9:52 * @classname TestActivity * description:测试RFID */ public class TestActivity extends BaseActivity { @BindView(R.id.btnStart) Button btnStart; @BindView(R.id.recyclerView) RecyclerView recyclerView; @BindView(R.id.tvCount) TextView tvCount; private RFIDWithUHF mReader; private TestAdapter adapter; @Override public String initActionBar() { return null; } @Override public int getRootView() { return R.layout.activity_test; } @Override public void setTitle() { } private SoundPool soundPool; private AudioManager am; HashMap<Integer, Integer> soundMap = new HashMap<Integer, Integer>(); private boolean loopFlag = false; @Override protected void initView(Bundle savedInstanceState) { recyclerView.setLayoutManager(new LinearLayoutManager(this)); initSound(); initUHF(); adapter = new TestAdapter(tagList); btnStart.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { readTag(); } }); recyclerView.setAdapter(adapter); clearData(); } private void clearData() { tvCount.setText("0"); tagList.clear(); adapter.notifyDataSetChanged(); } private void initSound() { soundPool = new SoundPool(10, AudioManager.STREAM_MUSIC, 5); soundMap.put(1, soundPool.load(this, R.raw.barcodebeep, 1)); soundMap.put(2, soundPool.load(this, R.raw.serror, 1)); // 实例化AudioManager对象 am = (AudioManager) this.getSystemService(AUDIO_SERVICE); } private void initUHF() { try { mReader = RFIDWithUHF.getInstance(); } catch (Exception e) { showToast(e.getMessage()); } if (mReader != null) { new InitTask().execute(); } } public class InitTask extends AsyncTask<String, Integer, Boolean> { ProgressDialog mypDialog; @Override protected Boolean doInBackground(String... params) { // TODO Auto-generated method stub return mReader.init(); } @Override protected void onPostExecute(Boolean result) { super.onPostExecute(result); mypDialog.cancel(); if (!result) { showToast("初始化失败"); } } @Override protected void onPreExecute() { // TODO Auto-generated method stub super.onPreExecute(); mypDialog = new ProgressDialog(TestActivity.this); mypDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); mypDialog.setMessage("init..."); mypDialog.setCanceledOnTouchOutside(false); mypDialog.show(); } } @Override protected void initData(Bundle savedInstanceState) { } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public void initBarCodeReader() { } @Override public void onResume() { super.onResume(); } @Override public void onPause() { super.onPause(); stopInventory(); } @Override public void onDestroy() { if (mReader != null) { mReader.free(); } super.onDestroy(); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == 139 || keyCode == 280) { if (event.getRepeatCount() == 0) { readTag(); } return true; } return super.onKeyDown(keyCode, event); } /** * 停止识别 */ private void stopInventory() { if (loopFlag) { loopFlag = false; if (mReader.stopInventory()) { btnStart.setText("开始识别"); } else { showToast("停止失败"); } } } public void clearData(View view) { clearData(); } class TagThread extends Thread { @Override public void run() { String strTid; String strResult; String[] res; while (loopFlag) { res = mReader.readTagFromBuffer(); if (res != null) { strTid = res[0]; if (strTid.length() != 0 && !strTid.equals("0000000000000000") && !strTid.equals("000000000000000000000000")) { strResult = "TID:" + strTid + "\n"; } else { strResult = ""; } Log.i("data", "EPC:" + res[1] + "|" + strResult); Message msg = handler.obtainMessage(); msg.obj = strResult + "EPC:" + mReader.convertUiiToEPC(res[1]) + "@" + res[2]; handler.sendMessage(msg); } } } } private void readTag() { // 识别标签 if (btnStart.getText().toString().equals("开始识别")) { // 单标签循环 if (mReader.startInventoryTag(0, 0)) { btnStart.setText("停止识别"); loopFlag = true; new TagThread().start(); } else { mReader.stopInventory(); showToast("开启失败----"); } } else { // 停止识别 stopInventory(); } // // 单步 // String strUII = mReader.inventorySingleTag(); // if (!TextUtils.isEmpty(strUII)) { // String strEPC = mReader.convertUiiToEPC(strUII); // addEPCToList(strEPC, "N/A"); // tvCount.setText("" + adapter.getItemCount()); // } else { // showToast("失败哦！"); // } } Handler handler = new Handler() { @Override public void handleMessage(Message msg) { super.handleMessage(msg); String result = msg.obj + ""; String[] strs = result.split("@"); addEPCToList(strs[0], strs[1]); playSound(1); } }; private float volumnRatio; /** * 播放提示音 * * @param id 成功1，失败2 */ public void playSound(int id) { // 返回当前AudioManager对象的最大音量值 float audioMaxVolumn = am.getStreamMaxVolume(AudioManager.STREAM_MUSIC); // 返回当前AudioManager对象的音量值 float audioCurrentVolumn = am.getStreamVolume(AudioManager.STREAM_MUSIC); volumnRatio = audioCurrentVolumn / audioMaxVolumn; try { soundPool.play(soundMa