JNI基础实验一：调用.so文件--友善之臂Tiny210 android 串口/pwm/ADC/LED

1.TextView 滚动拉动

2.byte 转 Strings

3. Thread

4.Handle

<?xml version="1.0" encoding="UTF-8"?><LinearLayout xmlns:android=" android:orientation="vertical" >

</LinearLayout>

package com.friendlyarm.LEDDemo;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.widget.EditText;
import android.widget.Toast;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.text.method.ScrollingMovementMethod;
import android.view.View;
import android.widget.Button;
import java.util.Arrays;
import android.widget.TextView;

import com.friendlyarm.AndroidSDK.HardwareControler;

public class serial extends Activity{
     private TextView fdText;
     private TextView showText;
     private EditText sendEditText;

     private Button closeSerial;
     private Button sendSerial;
     private Button openSerial,clearShow;
     private int fd;

     protected static final int SHOWDATA = 0x1234;
  protected static final int SENDOK = 0x1235;
  public Handler mHandler;

  private boolean threadDisable=false;
  String recdata;

/**
*接收函数
*/

   @Override
   public void onCreate(Bundle savedInstanceState)
   {
           super.onCreate(savedInstanceState);
           setContentView(R.layout.serial);

           fdText=(TextView) findViewById(R.id.receiveTextView);
           showText=(TextView) findViewById(R.id.showTextView);

           sendEditText=(EditText) findViewById(R.id.sendEditText);
           closeSerial = (Button) findViewById(R.id.closeSerial);
           sendSerial = (Button) findViewById(R.id.sendSerial);
           openSerial = (Button) findViewById(R.id.openSerial);
           clearShow = (Button) findViewById(R.id.clearButton);

       closeSerial.setOnClickListener(new Button.OnClickListener(){
           @Override
           public void onClick(View v) {
            //TODO Auto-generated method stub
            HardwareControler.close(fd);
            fdText.setText("关闭串口");
            openSerial.setEnabled(true);
            threadDisable = true;
           }
       });
       openSerial.setOnClickListener(new Button.OnClickListener(){
           @Override
           public void onClick(View v) {
            //TODO Auto-generated method stub
        fd=HardwareControler.openSerialPort("/dev/s3c2410_serial3",115200,8,1);
            if(fd !=-1)
             Toast.makeText(serial.this,"OPEN SUCCESS", Toast.LENGTH_SHORT).show();
            else
             Toast.makeText(serial.this,"OPEN FAIL```", Toast.LENGTH_SHORT).show();
            fdText.setText(Integer.toString(fd));
            fdText.setText(fdText.getText() + "打开线程");
            openSerial.setEnabled(false);

            new Thread(new Runnable() {
       @Override
       public void run() {
        while (!threadDisable) {

         try {
          Thread.sleep(1000);
         } catch (InterruptedException e) {
          e.printStackTrace();
         }

         int m=HardwareControler.select(fd,0,0);
       if(m==1)
              {
                 byte[] buf =new byte[1024];
                 try {
                  Thread.sleep(10);
                 } catch(InterruptedException e) {
                  //TODO Auto-generated catch block
                  e.printStackTrace();
                 }

               int n = HardwareControler.read(fd, buf, 1024);
                String ss = new String(buf,0,n);//将bytes转为 String
                Message s = new Message();//定义一个message的变量m
                  s.what = serial.SHOWDATA;//消息的标记GUINOTIFIER在前面定义的
                  s.obj =ss; //将要传送的数据传递给 m.obj
                  serial.this.mHandler.sendMessage(s);//传送消息
                }
        }
       }
      }).start();

           }
       });
       /**
        * 发送按钮
        */
       sendSerial.setOnClickListener(new Button.OnClickListener(){
          public void onClick(View v){
              SendSerial();
          }
       });

       clearShow.setOnClickListener(new Button.OnClickListener(){
           public void onClick(View v){
            showText.setText("");
           }
        });

     //创建handler
  mHandler = new Handler() {
             public void handleMessage(Message msg) {
                 switch (msg.what) {//得到Handle的通知了这个时候你可以做相应的操作
                     case serial.SHOWDATA://tcp_server是Activity的类名
                     // receivedata_tv.setText(""); //清空textView
                     // recv_tv.setText(msg.obj.toString());//设置textView显示内容每次都清除上次的显示
                     showText.setMovementMethod(new ScrollingMovementMethod());
                     showText.append(""+ msg.obj.toString());//设置textView显示内容下一行接着显示
                         break;
                   // case serial.SENDOK:
                     //.setText("");
                 }
                 super.handleMessage(msg);
             }
         };
    }

   public void SendSerial(){
       HardwareControler.write(fd,sendEditText.getText().toString().getBytes());
       sendEditText.setText("");
    };
}

package com.friendlyarm.AndroidSDK;
import android.util.Log;

public class HardwareControler
{
/* Serial Port */
static public native int openSerialPort( String devName, long baud, int dataBits, int stopBits );

/* LED */
static public native int setLedState( int ledID, int ledState );

    /* PWM */
static public native int PWMPlay(int frequency);
static public native int PWMStop();

    /* ADC */
static public native int readADC();

/* I2C */
static public native int openI2CDevice();
static public native int writeByteDataToI2C(int fd, int pos, byte byteData);
static public native int readByteDataFromI2C(int fd, int pos);

/* 通用接口 */
static public native int write(int fd, byte[] data);
static public native int read(int fd, byte[] buf, int len);
static public native int select(int fd, int sec, int usec);
static public native void close(int fd);

    static {
        try {
        System.loadLibrary("friendlyarm-hardware");
        } catch (UnsatisfiedLinkError e) {
            Log.d("HardwareControler", "libfriendlyarm-hardware library not found!");
        }
    }
}

JNI基础实验一：调用.so文件--友善之臂Tiny210 android 串口/pwm/ADC/LED

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