安卓串口开发

上图：上码：在APP grable添加// 串口需要配合在项目build.gradle中的repositories添加maven {url "https://jitpack.io" }implementation 'com.github.licheedev.Android-SerialPort-API:serialport:1.0.1'implementation 'com.jakewharton

谈情不如逗狗.

4546人浏览 · 2022-01-17 16:35:28

谈情不如逗狗. · 2022-01-17 16:35:28 发布

下载地址：https://download.csdn.net/download/hdhhd/76292498

上图：

上码：

在APP grable添加

    // 串口  需要配合在项目build.gradle中的repositories添加   maven {url "https://jitpack.io" }
    implementation 'com.github.licheedev.Android-SerialPort-API:serialport:1.0.1'
    implementation 'com.jakewharton:butterknife:8.4.0'
    //XRecyclerView 框架
    implementation 'com.jcodecraeer:xrecyclerview:1.3.2'

在项目 geable添加

allprojects {
    repositories {
        google()
        jcenter()
        maven {url "https://jitpack.io" }
        
    }
}

layout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <EditText
            android:id="@+id/edit_sendvalue"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1" />

        <Button
            android:id="@+id/btn_sendata"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="发送" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="120dp"
        android:orientation="horizontal">

        <EditText
            android:id="@+id/edit_rend"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:cursorVisible="false"
            android:hint="接受数据 " />

    </LinearLayout>

    <Button
        android:id="@+id/brn_cleanLogcat"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="清除日志" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal">

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/lv_AT"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1" />

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/lv_AT_logcat"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1" />

    </LinearLayout>


</LinearLayout>

activity:

package youli.com.example.administrator.serialport;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private EditText mEditSendvalue;
    private Button mBtnSendata, brn_cleanLogcat;
    private EditText mEditRend;
    private RecyclerView mLvAT, lv_AT_logcat;
    private RYAdapter ryAdapter;
    private RYAdapterLogcat adapterLogcat;
    private List<String> list_Log = new ArrayList<>();


    private MSeriaLport seriaLport;

    //14个药曹uid、电压
    private String[] array = new String[]{
            "555901080000EAFF",
            "555902080000EAFF",
            "555903080000EAFF",
            "555904080000EAFF",
            "555905080000EAFF",
            "555906080000EAFF",
            "555907080000EAFF",
            "555908080000EAFF",
            "555909080000EAFF",
            "55590A080000EAFF",
            "55590B080000EAFF",
            "55590C080000EAFF",
            "55590D080000EAFF",
            "55590E080000EAFF",
            "555901090000EAFF",
            "555902090000EAFF",
            "555903090000EAFF",
            "555904090000EAFF",
            "555905090000EAFF",
            "555906090000EAFF",
            "555907090000EAFF",
            "555908090000EAFF",
            "555909090000EAFF",
            "55590A090000EAFF",
            "55590B090000EAFF",
            "55590C090000EAFF",
            "55590D090000EAFF",
            "55590E090000EAFF"
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        setReceiver();
    }

    private void initView() {
        mEditSendvalue = (EditText) findViewById(R.id.edit_sendvalue);
        brn_cleanLogcat = (Button) findViewById(R.id.brn_cleanLogcat);
        mBtnSendata = (Button) findViewById(R.id.btn_sendata);
        mBtnSendata.setOnClickListener(listener);
        brn_cleanLogcat.setOnClickListener(listener);
        seriaLport = MSeriaLport.getSeriaLport(this);
        mEditRend = (EditText) findViewById(R.id.edit_rend);
        mLvAT = findViewById(R.id.lv_AT);
        mLvAT.setLayoutManager(new LinearLayoutManager(this));
        ryAdapter = new RYAdapter(this, Array.getList_AT(), Array.getList_value());
        mLvAT.setAdapter(ryAdapter);

        ryAdapter.getMSeriaLportAT(new RYAdapter.MSeriaLportAT() {
            @Override
            public void setOnClickListenerAdapter(int position) {
                final String ATValue = Array.getList_AT().get(position);
                Log.i("TAG", "发送指令：" + ATValue);
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        seriaLport.getWriteSeriaLportData(ATValue);
                    }
                }).start();
                ryAdapter.getPosition(position);
                ryAdapter.notifyDataSetChanged();
            }
        });

        lv_AT_logcat = findViewById(R.id.lv_AT_logcat);
        lv_AT_logcat.setLayoutManager(new LinearLayoutManager(this));
        adapterLogcat = new RYAdapterLogcat(this, list_Log);
        lv_AT_logcat.setAdapter(adapterLogcat);
    }


    View.OnClickListener listener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            switch (v.getId()) {
                case R.id.btn_sendata:
                    new Thread(new Runnable() {
                        @Override
                        public void run() {
                            for (int i = 0; i < array.length; i++) {
                                Log.i("TAG", "发送指令：" + array[i]);
                                seriaLport.getWriteSeriaLportData(array[i]);
                            }
                        }
                    }).start();

//                    mEditSendvalue.setText("555902080000EAFF");
//                    String AT = mEditSendvalue.getText().toString().trim();
//                    seriaLport.getWriteSeriaLportData(AT);
                    break;

                case R.id.brn_cleanLogcat:
                    list_Log.clear();
                    adapterLogcat.notifyDataSetChanged();
                    break;

                default:
                    break;

            }
        }
    };
    private ReceiverData receiverData;

    public static final String RECEIVER_REFRESH = "WWW.ANDROID.RECEIVER_REFRESH";

    //注册广播
    public void setReceiver() {
        if (receiverData == null) {
            receiverData = new ReceiverData();
            IntentFilter filter = new IntentFilter();
            filter.addAction(RECEIVER_REFRESH);
            registerReceiver(receiverData, filter);
        }
    }

    //注销广播
    public void setCancellationReceiver() {
        if (receiverData != null) {
            unregisterReceiver(receiverData);
        }
    }

    String value;

    private class ReceiverData extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            switch (action) {
                case RECEIVER_REFRESH:
                    value = intent.getStringExtra(RECEIVER_REFRESH);
                    mEditRend.setText(value);
                    list_Log.add(value);
                    adapterLogcat.notifyDataSetChanged();
                    //刷新后定位最后一条数据
                    int itemCount = adapterLogcat.getItemCount() - 1;
                    lv_AT_logcat.smoothScrollToPosition(itemCount);
                default:
                    Log.i("TAG", "接受指令：" + value);
                    break;
            }
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        setCancellationReceiver();
        seriaLport.getClose();
    }
}

MSeriaLport串口控制类：

package youli.com.example.administrator.serialport;

import android.content.Context;
import android.content.Intent;
import android.serialport.SerialPort;
import android.serialport.SerialPortFinder;
import android.text.TextUtils;
import android.util.Log;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

public class MSeriaLport extends SerialPort {

    private static Context contexts;

    //device物理地址错误会报错 Caused by: java.lang.SecurityException
    private static String device = "/dev/ttyS1"; //串口地址
    private static int baudrate = (int) 115200l;  // 波特率
    private static int flags = 0;                   //奇偶校验
    private boolean flag = true;

    private static InputStream inputStream;
    private static OutputStream outputStream;

    private static MSeriaLport seriaLport;

    public static MSeriaLport getSeriaLport(Context context) {
        contexts = context;
        if (seriaLport == null) {
            try {
                seriaLport = new MSeriaLport(new File(device), baudrate, flags);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return seriaLport;
    }

    static Thread sp_Thread;

    /**
     * 打开串口
     *
     * @param device   串口的具体物理地址
     * @param baudrate
     * @param flags
     * @throws SecurityException
     * @throws IOException
     */
    public MSeriaLport(File device, int baudrate, int flags) throws IOException {
        super(device, baudrate, flags);

        getRendSeriaLportData(); //读取数据
    }

    private String test;

    /**
     * 发送串口数据
     */
    public void getWriteSeriaLportData(String valueS) {
        outputStream = this.getOutputStream();
        try {
            while (!TextUtils.isEmpty(test)) {
                Thread.sleep(100);
            }
            test = valueS;

            byte[] b = utils.hexStr2bytes(valueS);
            outputStream.write(b);

            int abc = 0;
            while (!AT_value.contains("56") && !AT_value.contains("EAFF")) {
                Thread.sleep(200);
                abc++;
                if (abc == 10) {
                    break;//超时
                }
            }
            Log.i("TAG"," AT接受："+ AT_value);
            AT_value = "";
            test = "";
        } catch (IOException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    private StringBuffer buffer = new StringBuffer();
    private String valeu;
    private String AT_value = "";

    /**
     * 读取串口数据
     */
    private void getRendSeriaLportData() {
        inputStream = this.getInputStream();
        sp_Thread = new Thread(new Runnable() {
            @Override
            public void run() {
                while (flag) {
                    int index;
                    try {
                        Thread.sleep(100);
                        index = inputStream.available();
                        if (index > 0) {
                            byte[] bytes = new byte[index];
                            inputStream.read(bytes, 0, bytes.length);
                            valeu = utils.bytes2HexStr(bytes);
//                            Log.i("TAG", "读取到的数据：" + valeu);
                            buffer = buffer.append(valeu);
                            AT_value = buffer.toString();
                            if (AT_value.contains("56") && AT_value.contains("EAFF")) {
                                sendReceive(AT_value);
                                buffer = new StringBuffer();
                            }
                        }
                    } catch (IOException e) {
                        e.printStackTrace();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        });
        sp_Thread.start();

    }

    /**
     * 发送广播
     *
     * @param value
     */
    void sendReceive(String value) {
        Intent intent = new Intent();
        intent.setAction(MainActivity.RECEIVER_REFRESH);
        intent.putExtra(MainActivity.RECEIVER_REFRESH, value);
        contexts.sendBroadcast(intent);
    }


    /**
     * 关闭流
     */
    public void getClose() {
        if (seriaLport != null) {
            seriaLport.close();
            flag = false;
        }
    }

    /**
     * 获取在设备目录下的，所有串口的具体物理地址
     * /dev/ttyGS3
     * /dev/ttyGS2
     * /dev/ttyGS1
     * /dev/ttyGS0
     * /dev/ttyS0
     * /dev/ttyS1
     */
    public static String[] getAllDevicesPath() {
        String[] devices = new SerialPortFinder().getAllDevicesPath();
        for (int i = 0; i < devices.length; i++)
            Log.i("TAG", devices[i]);
        return devices;
    }
}

东西不多，没啥可说的。有不会的小伙伴可以提问。