package com.example.newland.serialport;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import com.newland.jni.Convert;
import com.newland.jni.SerialPort;//串口类
import com.newland.jni.OnDataReceivedListener;//数据接收监听口
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.ArrayAdapter;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private String strReceiveData="";//串口接收的数据
private Spinner spBaudRate,spUart;
private EditText etAck,etSend;
private TextView tvUartStatus;
private CheckBox chkSendHex,chkAckHex;
SerialPort newPort=new SerialPort();//定义一个串口
private int[] sectCom={0,1,2,3};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initComponent();//初始化控件
initSpinnerBaudRate();//初始化下拉框的值
//PC机发送数据是不定时的，故采用响应模式来接收数据
newPort.setCommReceivedMode(true);//设置串口通讯为响应模式
//设置数据接收的监听器
newPort.setOnDataReceivedListener(new OnDataReceivedListener() {
public void onDataReceived(String data) {
handleReceivedData(data);//处理接受的数据
}
});
}
/****************************************
* 函数名称：initComponent
* 功能描述：初始化界面
* 参数及返回值说明： *
****************************************/
private void initComponent(){
//初始化控件
tvUartStatus=(TextView)findViewById(R.id.tvUartStatus);
etAck=(EditText) findViewById(R.id.etAck);
etSend=(EditText)findViewById(R.id.etSend);
spBaudRate=(Spinner)findViewById(R.id.spBaudRate);
spUart=(Spinner)findViewById(R.id.spUart);
chkSendHex=(CheckBox)findViewById(R.id.chkSendHex);
chkAckHex=(CheckBox)findViewById(R.id.chkAckHex);
chkSendHex.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
String str=etSend.getText().toString();
try {
if (isChecked) {
etSend.setText(Convert.stringToHexString(str));
} else {
etSend.setText(Convert.hexStringToString(str));
}
}catch (Exception e){
}
}
});
//增加事件监听，实现字符串与十六进制互转
chkAckHex.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
String str=etAck.getText().toString();
try {
if (isChecked) {
etAck.setText(Convert.stringToHexString(str));
} else {
etAck.setText(Convert.hexStringToString(str));
}
}catch (Exception e){
//TODO:handle exception
}
}
});
}
/*******
* 函数名称：initSpinnerBaudRate
* 功能描述：初始化波特率的值
* 参数及返回值说明：*
*******/
private void initSpinnerBaudRate(){
//下拉波特率的值
String[] items={"1200","B2400","B4800","9600","19200","38400","57600","115200","230400","921600"};
//第一步：为下拉列表定义一个适配器，这里就用到里前面定义的items。
final ArrayAdapter<String>adapter=new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,items);
//第二步：为适配器配置下拉列表下拉时的菜单样式。
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//第三步：将适配器添加到下拉列表上
spBaudRate.setAdapter(adapter);
//默认选择第6项--57600
spBaudRate.setSelection(6);
//下拉串口的值
String[] uarts={"COM0","COM1","COM2","COM3"};
final ArrayAdapter<String>adapterUart=new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,uarts);
adapterUart.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spUart.setAdapter(adapterUart);
spUart.setSelection(2);//默认选择第二项--COM2
}
/*******
* 函数名称：myClick
* 功能描述：按钮监听
* 参数及返回值说明
*******/
public void myClick(View v) {
switch(v.getId()) {
//打开串口
case R.id.btnOpenUart:
long longUart = spUart.getSelectedItemId();
int uart = sectCom[(int) longUart];
longUart = spBaudRate.getSelectedItemId();
int com_fd = newPort.openPort(uart, 0, (char) longUart);
if (com_fd > 0) {
tvUartStatus.setText("打开成功！...");
} else {
tvUartStatus.setText("打开失败！...");}
break;
//关闭串口
case R.id.btnCloseUart:
newPort.closePort();
tvUartStatus.setText("已关闭！...");
break;
//发送
case R.id.btnSend:
String msg = etSend.getText().toString();
if (chkSendHex.isChecked()) {//以十六进制数发送
newPort.sendCommand(Convert.hexStringToCharArray(msg));
} else {//以字符串发送
newPort.sendCommand(Convert.stringToCharArray(msg));
}
break;
//清除按钮
case R.id.btnClear:
etAck.setText("");
strReceiveData = "";
break;
//退出
case R.id.btnQuit:
System.exit(0);
default:
break;
}
}
/************
* 函数名称：handleReceiveData
* 功能描述：处理数据
* 参数说明：data，从串口中接收到的数据
************/
protected void handleReceivedData(final String data){
runOnUiThread(new Runnable() {//通过runOnUiThread在线程中执行UI更新操作
public void run() {
strReceiveData = strReceiveData + data;
if (chkAckHex.isChecked()) {//十六进制显示
etAck.setText(Convert.dataToHexString(strReceiveData));
}else {
etAck.setText(Convert.dataToHexString(strReceiveData));}
}
});
}
@Override
protected void onDestroy(){
super.onDestroy();
newPort.onDestroy();
}
}
E/JIN: WARNING:could not load libuart.so
E/zygote: No implementation found for int com.newland.jni.Linuxc.openUart(int, int) (tried Java_com_newland_jni_Linuxc_openUart and Java_com_newland_jni_Linuxc_openUart__II)
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.newland.serialport, PID: 25212
java.lang.IllegalStateException: Could not execute method for android:onClick
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:390)
at android.view.View.performClick(View.java:6256)
at android.view.View$PerformClick.run(View.java:24701)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:385)
at android.view.View.performClick(View.java:6256)
at android.view.View$PerformClick.run(View.java:24701)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
Caused by: java.lang.UnsatisfiedLinkError: No implementation found for int com.newland.jni.Linuxc.openUart(int, int) (tried Java_com_newland_jni_Linuxc_openUart and Java_com_newland_jni_Linuxc_openUart__II)
at com.newland.jni.Linuxc.openUart(Native Method)
at com.newland.jni.SerialPort.openPort(SerialPort.java:87)
at com.example.newland.serialport.MainActivity.myClick(MainActivity.java:132)
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:385)
at android.view.View.performClick(View.java:6256)
at android.view.View$PerformClick.run(View.java:24701)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
Application terminated.
